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Code d'Examen: E20-007
Nom d'Examen: EMC (Data Science and Big Data Analytics)
Questions et réponses: 165 Q&As

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NO.1 What would be considered "Big Data"?
A. An OLAP Cube containing customer demographic information about 100,000,000 customers
B. Daily Log files from a web server that receives 100,000 hits per minute
C. Aggregated statistical data stored in a relational database table
D. Spreadsheets containing monthly sales data for a Global 100 corporation
Answer: B

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NO.2 You are using MADlib for Linear Regression analysis. Which value does the statement return?
SELECT (linregr(depvar, indepvar)).r2 FROM zeta1;
A. Goodness of fit
B. Coefficients
C. Standard error
D. P-value
Answer: A

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NO.3 Which type of numeric value does a logistic regression model estimate?
A. Probability
B. A p-value
C. Any integer
D. Any real number
Answer: A

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NO.4 The web analytics team uses Hadoop to process access logs. They now want to correlate this data
with structured user data residing in a production single-instance JDBC database. They collaborate with
the production team to import the data into Hadoop. Which tool should they use?
A. Sqoop
B. Pig
C. Chukwa
D. Scribe
Answer: A

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NO.5 What is an appropriate data visualization to use in a presentation for an analyst audience?
A. Pie chart
B. Area chart
C. Stacked bar chart
D. ROC curve
Answer: D

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NO.6 When would you use GROUP BY ROLLUP clause in your OLAP query?
A. where all subtotals and grand totals are to be included in the output
B. where only the subtotals are to be included in the output
C. where only the grand totals are to be included in the output
D. where only specific subtotals and grand totals for a combination of variables are to be included in the
output
Answer: A

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NO.7 When creating a presentation for a technical audience, what is the main objective?
A. Show that you met the project goals
B. Show how you met the project goals
C. Show if the model will meet the SLA
D. Show the technique to be used in the production environment
Answer: B

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NO.8 In data visualization, what is used to focus the audience on a key part of a chart?
A. Emphasis colors
B. Detailed text
C. Pastel colors
D. A data table
Answer: A

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NO.9 Your company has 3 different sales teams. Each team's sales manager has developed incentive offers
to increase the size of each sales transaction. Any sales manager whose incentive program can be
shown to increase the size of the average sales transaction will receive a bonus.
Data are available for the number and average sale amount for transactions offering one of the incentives
as well as transactions offering no incentive.
The VP of Sales has asked you to determine analytically if any of the incentive programs has resulted in a
demonstrable increase in the average sale amount. Which analytical technique would be appropriate in
this situation?
A. One-way ANOVA
B. Multi-way ANOVA
C. Student's t-test
D. Wilcoxson Rank Sum Test
Answer: A

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NO.10 A data scientist plans to classify the sentiment polarity of 10, 000 product reviews collected from the
Internet. What is the most appropriate model to use? Suppose labeled training data is available.
A. Na ve Bayesian classifier
B. Linear regression
C. Logistic regression
D. K-means clustering
Answer: A

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NO.11 In which lifecycle stage are test and training data sets created?
A. Model building
B. Model planning
C. Discovery
D. Data preparation
Answer: A

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NO.12 In R, functions like plot() and hist() are known as what?
A. generic functions
B. virtual methods
C. virtual functions
D. generic methods
Answer: B

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NO.13 Under which circumstance do you need to implement N-fold cross-validation after creating a
regression model?
A. There is not enough data to create a test set.
B. The data is unformatted.
C. There are missing values in the data.
D. There are categorical variables in the model.
Answer: A

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NO.14 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
The minimum support is 25%. Which rule has a confidence equal to 50%?
A. {bread,milk} => {cheese}
B. {bread} => {milk}
C. {juice} => {soda}
D. {bread} => {cheese}
Answer: D

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NO.15 What does the R code
z <- f[1:10, ]
do?
A. Assigns the first 10 rows of f to the vector z
B. Assigns the 1st 10 columns of the 1st row of f to z
C. Assigns a sequence of values from 1 to 10 to z
D. Assigns the 1st 10 columns to z
Answer: A

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NO.16 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
You decide to run the association rules algorithm where minimum support is 50%. Which rule has a
confidence at least 50%?
A. {cheese} => {bread}
B. {juice} => {cheese}
C. {milk} => {soda}
D. {soda} => {milk}
Answer: A

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NO.17 You are using the Apriori algorithm to determine the likelihood that a person who owns a home has a
good credit score. You have determined that the confidence for the rules used in the algorithm is > 75%.
You calculate lift = 1.011 for the rule, "People with good credit are homeowners". What can you determine
from the lift calculation?
A. Support for the association is low
B. Leverage of the rules is low
C. The rule is coincidental
D. The rule is true
Answer: C

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NO.18 Which word or phrase completes the statement? Data-ink ratio is to data visualization as __________ .
A. Confusion matrix is to classifier
B. Data scientist is to big data
C. Seasonality is to ARIMA
D. K-means is to Naive Bayes
Answer: A

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NO.19 Which data asset is an example of quasi-structured data.?
A. Webserver log
B. XML data file
C. Database table
D. News article
Answer: A

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NO.20 Your colleague, who is new to Hadoop, approaches you with a question. They want to know how best
to access their data. This colleague has a strong background in data flow languages and programming.
Which query interface would you recommend?
A. Pig
B. Hive
C. Howl
D. HBase
Answer: A

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Code d'Examen: E20-597
Nom d'Examen: EMC (Backup and Recovery Specialist Exam for Storage Administrators)
Questions et réponses: 168 Q&As

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NO.1 An EMC NetWorker customer wants to perform a complete backup of a SQL server with three
databases. Which save set name should be used?
A.MSSQL:DB
B.MSSQL:*
C.MSSQL:ALLDB
D.MSSQL:
Answer: D

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NO.2 You have successfully configured three SQL servers for backup with the EMC NetWorker Module for
SQL. These servers are configured as follows:
Scheduled backup of the group shows that all SQL data from the three servers was successfully backed
up. However, when you attempt to recover the SQL data using the standard NetWorker user GUI, you
only see file system data to recover.
What must you do to recover the SQL data backed up with the NetWorker module?
A. Modify the browse time within the NetWorker user GUI to show the period for which you want to
recover.
B. Use the Microsoft SQL Server native tools to recover the data from NetWorker.
C. Modify the save set to include an instance or database name after MSSQL:.
D. Launch the NetWorker User for SQL.
Answer: D

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NO.3 Which Microsoft VSS component is responsible for creation and maintenance of a shadow copy?
A. Requestor
B. Provider
C. Writer
D. Interceptor
Answer: B

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NO.4 You have an EMC NetWorker server with one storage node. There is an autoloader with four tape drives.
Two drives each are dedicated to the server and storage node. A new Celerra has been added to the
network with 500 GB of data. What must be done to back up the data on the Celerra?
A. Create a storage node on the Celerra and select NDMP in the "type of storage node" field.
B. Configure a device on the NetWorker server as an NDMP device and back up the Celerra to this
device.
C. Configure a client for the Celerra to use DSA and back up its data to either the NetWorker server or
storage node.
D. Create an NDMP backup pool and add this pool to a save group with other clients.
Answer: C

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NO.5 When adding an EMC NetWorker server's name into the /nsr/res/servers file of a client, which service
must be restarted on the client for the change to take effect?
A. nsrd
B. nsrexecd
C. nsrindexd
D. nsrdb
Answer: B

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NO.6 A customer has the following EMC NetWorker configuration:
How many nsrlcpd processes are running on the NetWorker server?
A. 4
B. 12
C. 16
D. 0
Answer: D

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NO.7 Refer to the exhibit. In an EMC NetWorker environment, the storage node sn1 is down for maintenance.
According to the client properties, what happens when the backup of the client starts?
A. The backup data will be sent to the storage node sn2.
B. The backup will fail as the storage node sn1 is not available.
C. The backup data will be sent to any available storage node.
D. The backup data will be sent to the NetWorker server.
Answer: A

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NO.8 What is a characteristic of VCB backups in EMC NetWorker?
A.Supports image and file-based backups
B.Requires a NetWorker client on each virtual machine
C.Requires a storage node on the VCB backup proxy
D.Does not support LAN-free backup
Answer: A

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NO.9 What is a characteristic of cloud volumes in EMC NetWorker?
A.Infinitely appendable
B.Recyclable
C.Space cannot be reclaimed.
D.Data cannot be compressed or encrypted.
Answer: A

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NO.10 Refer to the exhibit. An EMC NetWorker customer has two data zones, A and B, with autochanger AC1
and AC2, respectively, with four drives each. AC1 is configured as a dedicated autochanger and AC2 is
configured as a shared autochanger.
Two drives of AC2 are statically assigned. How many drives of AC2 can be shared in Zone A?
A. 2
B. 0
C. 4
D. 6
Answer: B

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NO.11 A backup administrator is configuring an EMC NetWorker embedded storage node within an EMC Disk
Library. To ensure that the embedded storage node is used to read the data during clone operations, what
is required?
A.Add the Disk Library engine's hostname to the "Read hostname" field in the device properties.
B.Set the clone storage node value for the embedded storage node client resource to itself.
C.Create a client for the embedded storage node.
D.Create a clone pool and assign the appropriate rights to it.
Answer: A

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NO.12 What is a characteristic of EMC NetWorker SnapImage module backups?
A.Block-level backups of dense file systems
B.Fast block-level backups of a file system mounted on a proxy server
C.Immediate recovery of a file system from a persistent snapshot
D.SAN-based image-level backup and recovery of file systems
Answer: A

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NO.13 A customer using EMC NetWorker Power edition attempts to set server parallelism to 96. When saving
the changes they notice that the server parallelism reverts back to 64.
What action needs to be taken to set server parallelism to 96.?
A. Set device max sessions to 96.
B. Configure group parallelism to 96.
C. Enable diagnostic mode.
D. Add NetWorker Storage Node Enabler Code.
Answer: D

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NO.14 What is the backup command specified in the EMC NetWorker client resource for EMC Centera
backups?
A.savepnpc
B.nsrdasv
C.nsrndmp_save
D.nsrsnap_vss_save.exe
Answer: C

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NO.15 What is a characteristic of how the EMC NetWorker modules integrate with native applications?
A. The developer of the native application provides a NetWorker module to allow for protection of their
application with NetWorker.
B. The NetWorker module runs on the NetWorker server and acts as an intermediary for data coming
from the NetWorker client module.
C. The NetWorker module acts as an intermediate layer between NetWorker and the native application.
D. The NetWorker module always takes the place of the standard NetWorker client allowing for backup of
applications and file systems.
Answer: C

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Code d'Examen: E20-517
Nom d'Examen: EMC (Symmetrix Solutions Specialist Exam for Storage Administrators)
Questions et réponses: 192 Q&As

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NO.1 What is the status of the R1 and R2 devices after performing an SRDF split operation?
A. R1 and R2 Not Ready
B. R1 Write Disabled; R2 Read/Write
C. R1 Read/Write; R2 Read/Write
D. R1 Read/Write; R2 Write Disabled
Answer: C

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NO.2 When a TimeFinder/Snap session is terminated, what happens to the allocated space on the save
devices?
A. Data on the save devices is maintained for the target host.
B. Tracks on the save devices are reclaimed.
C. Tracks on the save devices are replicated to snap target devices.
D. Data on the save devices is maintained for the source host.
Answer: B

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NO.3 When a TimeFinder/Snap session is terminated, what happens to the allocated space on the save
devices?
A. Data on the save devices is maintained for the target host
B. Tracks on the save devices are reclaimed.
C. Tracks on the save devices are replicated to snap target devices
D. Data on the save devices is maintained for the source host
Answer: B

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NO.4 A storage administrator wants to map some Symmetrix devices to an FA port for use by the Sales group
and finds that someone placed reservations on the devices for a project that no longer needs them. What
should theStorage administrator does to use those devices?
A. Use the password that was used at the time of creation to release the reservations
B. Use symconfigure to release the reservation
C. Map the devices from a host that has Symmetrix Access Control administrator privileges.
D. Use symconfigure with the force option to map the devices
Answer: B

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NO.5 You need to perform an SRDF fallback operation and must ensure the integrity of the data on the R2
volume which step must be taken.?
A. Suspend the RDF link
B. Unmount the tile system
C. Remove entries horn the file system table
D. Disable journaling on the file system
Answer: D

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Code d'Examen: E20-495
Nom d'Examen: EMC (Content Management xCelerated Composition Platform Application Development Exam)
Questions et réponses: 182 Q&As

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NO.1 An insurance claims process invokes a child process that is used to determine whether the person
making the claim has secondary insurance. During the child process, a Boolean value,
has_other_insurance, is set by a task processor.
How should the has_other_insurance data item be defined so that the data can be shared between the
parent process and child process?
A. as a process parameter
B. as a structured data type
C. as a simple process variable
D. as an attribute of a package
Answer: D

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NO.2 What is part of the xCP runtime architecture?
A. Process Integrator
B. Process Reporting Services
C. Process Builder
D. TaskSpace Configuration
Answer: A

EMC   E20-495   E20-495

NO.3 Which component is responsible for executing outbound data/messaging activity templates from the
Process Integrator?
A. Business Process Server
B. SMTP Server
C. Content Server
D. Java Method Server
Answer: D

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NO.4 An application developer is creating a business process template and needs to ensure that certain
pieces of data that are included within a structured data type will be persisted in the repository after the
workflow completes.
To which location should the structured data type data be mapped?
A. process parameters
B. process variables
C. attributes of a package
D. no mapping is required
Answer: C

EMC   E20-495   E20-495

NO.5 A manual activity has a Pre-Timer defined to send an email notification.
Which task condition for the activity will trigger the email notification?
A. The task is not completed within the specified time after the workflow starts.
B. The task is not completed within the specified time once the activity is created.
C. The task is not created within the specified time after the completion of the previous activity.
D. The task is not created within the specified time after the workflow starts.
Answer: D

EMC   E20-495   E20-495   E20-495

NO.6 Which third-party product available from EMC is commonly deployed with TaskSpace to provide
document viewing, redaction, and redlining?
A. Workshare DeltaView
B. Informative Graphics Brava!
C. Adobe Acrobat Reader
D. Documentum Image Services
Answer: B

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NO.7 After defining a package, a developer selects the This package can be used to generate reports check
box.
Where does the application developer enable audit trail settings to publish reporting data?
A. Process Reporting Services
B. the process template
C. TaskSpace
D. the package definition
Answer: B

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NO.8 Where can an application developer enable tracing for Composer to monitor building or importing a
project?
A. dfc.properties
B. log4j.properties
C. Eclipse preferences
D. composer.properties
Answer: C

EMC   E20-495   certification E20-495

NO.9 During single-user testing, the task list of a TaskSpace application takes over 10 seconds to render.
What is the EMC recommended method for an application developer to identify the DQL queries that may
be the cause of the problems?
A. Turn on database level tracing and give the trace data to an experienced DBA.
B. Enable DFC tracing on the TaskSpace application server and convert the trace file to an Excel-friendly
format using traceD6.awk.
C. Install a proxy on the client machine and monitor the traffic with the TaskSpace application server
when clicking on the task list.
D. Set the last_sql_trace flag in the repository's server.ini on the Content Server and obtain all the queries
from the server log file.
Answer: B

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NO.10 Case workers access a TaskSpace Task List component in order to determine the most important
tasks to work on each day. Workers will filter their task list by two required data fields: Request_date:
DATE
Income: FLOAT
A value in both fields is required in order to sufficiently minimize the number of cases shown in the case
worker's task list.
How must request_date and income be defined to minimize the response time for the task list display?
A. as simple process variables
B. within separate structured data types
C. within the same structured data type
D. as attributes within package data
Answer: C

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NO.11 An application developer needs to create a business process template that allows a user to modify
individual task instructions for new process instances without having to uninstall the process template.
How should the task instructions be stored?
A. in text documents stored in the repository
B. in a structured data type
C. in process variables
D. in process parameters
Answer: D

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NO.12 Where are exceptions from Outbound Activity templates logged?
A. bpm.log
B. log4j.log
C. bps.log
D. server.log
Answer: A

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NO.13 Where are exceptions from Inbound Activity templates logged?
A. bpm-runtime.log
B. bps.log
C. documentum.log
D. server.log
Answer: B

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NO.14 Users access documents by searching for them using a fulltext query. The query could potentially
return hundreds of thousands of documents; however users are only allowed to access those that were
generated within the user ¯ s o w n depa rt m en t, w h i ch i s a s m a ll nu m be r o f docu m en t s . A ccess i s con tr o ll ed
using an ACL that grants appropriate access by department.
Which data modeling approach will significantly improve the response time for the query without changing
the query semantics?
A. Modify the query to run at the database rather than the fulltext server.
B. Ensure that the ACL assigned to documents does not contain a large number of accessors.
C. Modify the ACL to restrict, rather than grant, access using the access restrictions feature of Trusted
Content Services.
D. Add an attribute value to documents that indicates the originating department and modify the query to
filter on this attribute.
Answer: D

EMC   E20-495 examen   E20-495   E20-495

NO.15 A medical supply company has a product approval workflow where the unique product ID must be
exposed to TaskSpace users in the task list template.
What is the EMC best practice for exposing the ID in the task list template?
A. Customize the query that populates the task list template.
B. Put the product ID into a structured data type.
C. Customize the task list template using the WDK XML configuration.
D. Mark the package data as reportable for BAM.
Answer: B

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NO.16 A manual activity is designed with performer setting as All users in a group.
Which statement represents the server behavior?
A. A work item is generated for each user in the group and an inbox item is also generated for each user
in the group.
B. A work item is generated for each user in the group but no inbox item is generated.
C. A work item is generated for each user in the group, but only one inbox item is generated for the entire
group.
D. One work item is generated for the entire group and an inbox item is generated for each user in the
group.
Answer: A

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NO.17 Which xCP component is responsible for providing page serving and managing annotations on
documents?
A. Documentum Collaboration Services
B. Documentum PDF Annotation Services
C. Document Image Services
D. TaskSpace
Answer: C

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NO.18 Which optional xCP product provides document capture and indexing from a customizable web
interface?
A. Informative Graphics Brava!
B. Application Xtender
C. Kofax Capture Enterprise
D. Captiva eInput
Answer: D

EMC   certification E20-495   E20-495   E20-495   certification E20-495   E20-495

NO.19 Which core xCP component is responsible for aggregating business process reporting information?
A. Process Reporting Services
B. Business Activity Monitor
C. Process Engine
D. Documentum Reporting Services
Answer: B

EMC   certification E20-495   E20-495   E20-495   E20-495 examen   E20-495

NO.20 Which xCP component executes automatic runtime activities such as Queue Item Prioritization and
Outbound System Integration activities?
A. TaskSpace
B. Process Engine
C. Process Integrator
D. Content Server
Answer: B

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Code d'Examen: E22-192
Nom d'Examen: EMC (Captiva Installation, Configuration, and Management Exam)
Questions et réponses: 106 Q&As

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NO.1 Which module is used to automatically identify templates defined in a Dispatcher project?
A. Dispatcher manager
B. Classification Edit
C. Classification
D. Validation
Answer: C

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NO.2 What is one virtualization product that is compatible with InputAccel?
A. VirtualBox
B. XenServer
C. Hyper-V
D. OracleVM
Answer: B

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NO.3 What is required to synchronize the InputAccel Server to the InputAccel Database when moving the
database onto a new machine?
A. Reinstall ODBC Component
B. Reinstall InputAccel Server Component
C. Run Data Access Layer registration utility
D. Restart InputAccel service
Answer: C

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NO.4 Which module enables end users to perform quality assurance on scanned images and document
assembly?
A. IndexPlus
B. Image Enhancement
C. RescanPlus
D. NuanceOCR
Answer: C

EMC examen   E22-192   E22-192   E22-192

NO.5 Which component is required to run a report?
A. VBA code
B. Stored procedure
C. Client-Side Scripting
D. IPP code
Answer: B

EMC   E22-192   E22-192 examen

NO.6 Which steps are required to upgrade an InputAccel process to use replaced modules when migrating
from InputAccel 5.3 to 6.x?
No additional steps are required to migrate processes
A. 1. Open IPP in Process Developer
Recompile
Reinstall"
B. 1. Open IPP in Process Developer
Include new MDF files
Modify to include new module names
Recompile
Reinstall"
C. 1. Open IPP in Process Developer
Add prepare routines for all new modules
Set manual retriggering
Include new MDF files
Modify IPP to include new module names
Recompile
Reinstall"
Answer: B

EMC   certification E22-192   E22-192

NO.7 A Developer needs to create a database query that will execute after the end user populates a field.
How can this be accomplished?
A. Configure a new log rule for the IndexPlus module to query the database.
B. Configure IndexPlus to make the database call.
C. Code a database query in IPP code's IndexPlus Finish event
D. Code a database query using Client-Side Scripting with IndexPlus
Answer: D

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NO.8 A customer is required to send (and not return) InputAccel data to an external system via Web
Services.
Which component is responsible for this exchange of information?
A. Web Services Output
B. Web Services Coordinator
C. Web Services Hosting
D. Web Services Export
Answer: A

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NO.9 In efforts to tighten InputAccel security, the Administrator is creating a new Supervisor role. The
Supervisor role should have access to the Administration Console and should be able to run client
modules.
What needs to be applied to the new Supervisor role?
A. Role members
B. Windows users and groups
C. Permissions
D. Access Control Lists (ACL)
Answer: C

EMC examen   certification E22-192   certification E22-192   E22-192

NO.10 System requirements have been verified and InputAccel is ready to be installed. What is the correct
order of items to be installed?
A. 1. InputAccel Database
InputAccel Server
Administration Console
Dispatcher for InputAccel client modules"
B. 1. InputAccel Database
InputAccel Server
Web Services
Administration Console
InputAccel client modules"
C. 1. InputAccel Server
InputAccel Database
Administration Console
InputAccel client modules"
D. 1. InputAccel Database
InputAccel Server
Administration Console
InputAccel client modules"
Answer: D

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NO.11 An Administrator receives new system requirements where the barcode contains multiple lines of data.
Which filter is used to read the barcode.?
A. Extended Bar Code Detection
B. Patch Code Detection
C. Bar Code Detection
D. Postal Bar Code Detection
Answer: A

EMC   E22-192   E22-192   certification E22-192

NO.12 An end user needs to export a batch from the InputAccel Server using a system that does not have
client modules installed.
Which mechanism can be used to export the batch to a different directory as a zip archived file?
A. IACopy
B. Multi-Directory Watch
C. File System Export
D. Administration Console
Answer: D

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NO.13 Email import module supports POP3, POP3 SSL, and which other email protocol?
A. IMAP4
B. HTTP
C. MIME
D. MAPI
Answer: A

EMC   certification E22-192   E22-192

NO.14 An Administrator reinstalls the InputAccel Server on new hardware after a disastrous hardware failure.
The Administrator uses the original CAF and LIC files from eighteen months ago to activate and license
the new server.
Why will this result in a non-functioning server?
A. The original CAF file contains invalid EnterBy dates
B. The original CAF file cannot be used on different hardware
C. The original LIC file cannot be used on different hardware
D. The original LIC file contains invalid EnterBy dates
Answer: B

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NO.15 A Developer modifies an IPP that was generated by CaptureFlow Designer.
Where can the IPP be maintained going forward?
A. CaptureFlow Designer
B. Dispatcher Manager
C. Process Developer
D. Free Form Designer
Answer: C

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Code d'Examen: E20-822
Nom d'Examen: EMC (CLARiiON Solutions Expert Exam for Storage Administrators)
Questions et réponses: 120 Q&As

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NO.1 Click the Exhibit button.
While performing a routine check of a CX3-40 with FLARE R26 the storage administrator receives an
error while trying to clear the logs. What is the cause of the error?
A.Host agent is not running
B.The Privileged User List is empty
C.The user is logged in as a security administrator role
D.The user is logged in with a manager role
Answer: D

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NO.2 Click the Exhibit button.
You are the SAN Administrator at a company. The company is running multiple Exchange Server 2007
storage groups on a CLARiiON array that exclusively uses 15k rpm 146 GB drives. You have been tasked
with adding a third Exchange storage group with one mailbox store to the existing server.
The storage for this new Exchange storage group must be allocated from the same CLARiiON currently
running the other two Exchange storage groups. All Exchange storage groups are presently exhibiting a
1:1 read/write ratio. The new storage group will require capacity identical to the existing Exchange
storage groups.
The table below, as well as the exhibit, indicates the current utilization of the array.w`V6a2tYJ%&,*In
order to satisfy the capacity requirements (GB and IOPS), in which RAID group must you create a
database LUN for the new Exchange storage group?
A.0
B.10
C.20
D.30b
Answer: C

EMC   E20-822   E20-822

NO.3 A customer is implementing the Replication Manager/SAN Copy/RepliStor solution for DR of their
Exchange environment. In the process of configuring this solution they need to configure the RM DR
utility to run after the completion of the SAN Copy job.
Which level of IR callout should they use in order for the script to invoke at the proper time?
A.100
B.300
C.400
D.600
Answer: D

EMC   E20-822   E20-822

NO.4 A customer created two RAID groups, 0 and 2, with the default settings on their CX3-80 and bound
four LUNs in each group. After starting the application the customer notices all I/O is going through SP B.
What caused the LUN imbalance?
A.CX3-80 has a single SP
B.Default setting bound all LUNs on the same SP
C.Host does not have failover software installed
D.Host is not ALUA-aware
Answer: B

EMC   E20-822   E20-822

NO.5 A company has implemented Replication Manager to back up their SQL Server. In addition to clone
copies every 6 hours, they have also implemented SQL Server log backups for a more granular RPO.
Last night, a junior DBA corrupted the production database. After using Replication Manager to restore
the database with no recovery, the senior DBA attempts to replay the transaction log backups but the
database returns an error indicating that no database is in a state to replay logs.
What is the cause of this restore failure?
A.Replication Manager only supports transaction log replay on databases restored with full recovery
B.rmsqlrestore.exe was not used to replay the VDI metadata
C.The restored database's SCN is out of sync with the SQL system databases
D.The transaction log backups have a gap in the sequence of transactions
Answer: B

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NO.6 A customer is currently using Replication Manager to create clone copies of their SQL Server instance
which are then mounted to a backup server and streamed to tape. The customer has decided to purchase
a second CLARiiON and implement a DR scenario. The DR site is located 30 km away. A dedicated T1
(1.5 Mb) line is leased specifically for DR purposes with measured latencies that average 5-10 ms.
The application is considered mission-critical and as such very little data loss is acceptable. Any solution
implemented must have very little impact on performance. Time will be allowed for the application to be
recovered in the case of a disaster. The implemented solution must also allow for transaction logs to be
replayed in the case of data corruption.
Which DR solution would best fit this scenario?
A.MirrorView/A
B.RepliStor SQL Server Module
C.SQL Log Shipping/Full SAN Copy from the production LUN
D.SQL Log Shipping/Incremental SAN Copy from the production LUN
Answer: C

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NO.7 A large warehousing company has two CLARiiONs with two LUNs set up and each is mirrored with
MirrorView/A over DWDM. The two sites are less than 1 km away.
The company is currently running an OLTP database on a 300 GB RAID 1/0 4+4 LUN and its logging on a
150 GB RAID 1/0 4+4 LUN. The I/O read/write ratio is 2:1 with a 2 kB average I/O size.
The customer notices that at peak times the latency becomes an issue as their users start to complain
about poor performance. What is your recommendation?
A.Check the fibre for faults
B.Upgrade the CLARiiON model
C.Use Incremental SAN Copy
D.Use MirrorView/S
Answer: D

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NO.8 A customer has a single RAID group with a RAID 1/0 6+6 LUN on a dedicated DAE2. This LUN is
active on SP A. They need to expand with the maximum possible increase in IOPS. The LUN may not go
offline. The customer has a new DAE2 with the same disks.
How should they proceed?
A.Add 12 disks to the current RAID group. Create a new LUN. Create a striped metaLUN.
B.Back up the current LUN. Create a new RAID group and a new LUN on SP B. Present it to the host and
create a LVM plaid. Restore the data.
C.Create a new RAID group and create a new LUN on SP A. Create a concatenated metaLUN.
D.Create a new RAID group and create a new LUN on SP A. Create a striped metaLUN.
Answer: D

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NO.9 Click the Exhibit button.
A customer wants to create an additional 250 GB LUN on their existing RAID 6 group. How can this be
accomplished?
A.Create the LUN on another RAID 6 group using concatenation
B.Defragment the RAID group and bind the additional LUN
C.Destroy the RAID group and create the new LUNs
D.Expand the RAID group to increase the available space
Answer: A

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NO.10 A customer is reporting a problem with a physical disk. Examining the SP Event Log shows errors for
LUN 16. Data is being gathered from a UNIX host used for storage management. The host does not have
the capability to run the Navisphere Web UI.
To determine the underlying disk structure, which Navisphere Secure CLI subcommand can be used to
determine if LUN 16 is being affected?
A.getdisk
B.getinfo
C.getlun
D.getrg
Answer: C

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NO.11 A large financial customer has a time-critical OLTP application running on a dedicated CX3-80. One of
their internal administrators believes they modified something that could have affected the production
LUN. Since then the response time has increased significantly.
What action is the likely cause of the problem?
A.Decreased the high watermark to 75%
B.Enabled auto-assignment
C.Increased queue depth to 128
D.Increased the cache write aside value to 3076
Answer: C

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NO.12 A customer has configured SnapView for two LUNs on a DR CLARiiON storage system. When the
client attempts to run the Navisphere Secure CLI command to create the snapshot session, it fails.
In the setup process for using SnapView, which step did the customer forget to do?
A.Allocate LUNs to the Reserved LUN Pool
B.Allocate Write Intent Log
C.Enable Incremental Synchronization
D.Test IP link latency
Answer: A

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NO.13 Click the Exhibit button.
A customer wants to create an additional 250 GB LUN on their existing RAID 6 group. How can this be
accomplished?
A.Create the LUN on another RAID 6 group using concatenation
B.Defragment the RAID group and bind the additional LUN
C.Destroy the RAID group and create the new LUNs
D.Expand the RAID group to increase the available space
Answer: A

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NO.14 A customer created two RAID groups, 0 and 2, with the default settings on their CX3-80 and bound
four LUNs in each group. After starting the application the customer notices all I/O is going through SP B.
What caused the LUN imbalance?
A.CX3-80 has a single SP
B.Default setting bound all LUNs on the same SP
C.Host does not have failover software installed
D.Host is not ALUA-aware
Answer: B

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NO.15 A customer has been tasked with copying 50 LUNs between two CLARiiONs using SAN Copy. The
customer starts the sessions selecting all defaults. The resulting copies appear to be taking an
unexpectedly long time.
Which settings should be increased to improve performance?
A.Reserved LUN Pool Size, Concurrent sessions
B.Throttle Value, Concurrent sessions
C.Throttle Value, Reserved LUN Pool Size
D.Write cache, Reserved LUN Pool
Answer: B

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NO.16 Click the Exhibit button.
A storage administrator is automating a solution using the Navisphere Secure CLI. In the event of
production data corruption, the script needs to recover from the target LUNs.
Which steps should the script perform?
P = Primary
S = Secondary
Snap = Snapshot
A.Unmount P, fracture, roll back Snap, synchronize, promote P, and mount P
B.Unmount P, promote S, fracture, roll back Snap, synchronize, promote P, and mount P
C.Unmount P, roll back Snap, promote S, fracture, synchronize, promote P, and mount P
D.Unmount P, roll back Snap, restore S, and mount P
Answer: B

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NO.17 A customer was running a snapshot session when they noticed a SP failure. The Source LUN was
owned by the failed SP. What will happen to the session and the Reserved LUN Pool (RLP) LUN?
A.Session continues and the RLP LUNs trespass. After repairing the failed SP, the RLP LUN must be
manually trespassed to the original owning SP.
B.Session continues and the RLP LUNs trespass. After repairing the failed SP, the RLP LUN trespasses
back to the original owning SP.
C.Session gets deactivated and the SP frees the allocated LUN. After fixing the failed SP, the session will
activate and the original RLP LUN will be allocated.
D.Session stops and a new RLP LUN will be allocated on the surviving SP upon fixing the failed SP. The
RLP LUN will trespass back to the original SP and the user must manually restart the session.
Answer: B

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NO.18 You are using Replication Manager to make clones of two production Exchange mailbox database
LUNs. After reviewing the event log for the week, you notice there have been numerous failures but no
alerts have been sent out. Replication Manager was configured to send email alerts in case of an
Exchange job failure.
What is preventing the email alerts from being sent out?
A.MAPI32.DLL is missing on the Replication Manager server
B.Outlook was not installed on the Replication Manager server
C.The Replication Manager console was not configured to relay alerts
D.The SMTP service in IIS was not configured on the Replication Manager server
Answer: D

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NO.19 Click the Exhibit button.
While performing a routine check of a CX3-40 with FLARE R26 the storage administrator receives an
error while trying to clear the logs. What is the cause of the error?
A.Host agent is not running
B.The Privileged User List is empty
C.The user is logged in as a security administrator role
D.The user is logged in with a manager role
Answer: D

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NO.20 A company has requested an independent consultant to develop and implement a security model for
the CLARiiON storage platform. The company has limited access to the administrator role by removing
rights for all accounts. However, they would like to keep the single administrator role account for top level
management.
Management of user security should not be done by the administrator role user. In addition, the storage
object administrators should not be able to change user security when using the Secure CLI. CLARiiON
storage systems are located in a protected data center with limited physical access.
Which method should be employed to manage user security?
A.Create a Security Administrator role user and create a Manager role user account for storage object
managers.
B.Create a Security Administrator role user, enable the CLI filter, and create a Manager role user account
for storage object managers.
C.Implement security using PKI certificates, create a Security Administrator role user, and enable the CLI
filter.
D.Implement security using PKI certificates, enable the CLI filter, and create a Manager role user account
for storage object managers.
Answer: B

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NO.21 Click the Exhibit button.
A failure has occurred in a DR environment. The error message is displayed in the exhibit. What must be
done to correct the failure?
A.Add more LUNs to the remote CLARiiON RLP. Restart the synchronization.
B.Destroy the mirror. Add a secondary of the correct size.
C.Enable write cache on the remote CLARiiON Write Intent Logs. Restart the synchronization.
D.Increase the write cache size on the remote CLARiiON.
Answer: A

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NO.22 Click the Exhibit button.
While performing a routine check of a CX3-40 with FLARE R26 the storage administrator receives an
error while trying to clear the logs. What is the cause of the error?
A.Host agent is not running
B.The Privileged User List is empty
C.The user is logged in as a security administrator role
D.The user is logged in with a manager role
Answer: D

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NO.23 A customer uses Incremental SAN Copy (ISC) as part of a DR solution. They have configured the
Reserved LUN Pool (RLP). They are adapting their environment to support different failure scenarios.
Which combination of failures is most serious?
A.A failure of the ISC update followed by a failure of the production LUN
B.A failure of the ISC update followed by a failure of the remote LUN
C.A failure of the link followed by a failure of the remote RLP
D.A failure of the RLP on the remote CLARiiON followed by a failure of the remote LUN
Answer: A

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NO.24 Click the Exhibit button.
A customer uses multiple server preparation scripts; one for new Exchange servers and one for recovery.
These scripts are used to configure the CLARiiON storage using the Navisphere Secure CLI. The
customer calls and reports that they accidentally ran the new server preparation script instead of the
recovery script they intended to run.
The customer asks for a check to see if their data is still available from CLARiiON storage as they cannot
find their LUNs. The CLARiiON SP event logs show the data in the exhibit. Which method can the
customer use to correct the problem?
A.Rebind base and component LUNs, reform the metaLUN, place the metaLUN in SG for the host, and
recover the data from the backup.
B.Reform the metaLUN from the original base and component LUNs, place the metaLUN in SG for the
host, and recover the data from the backup.
C.Use CLARiiON recovery tools to recover the metaLUN, place the metaLUN in SG for the host, and
recover the data from the backup.
D.Use Navisphere Secure CLI tools to recover base and component LUNs, reform the metaLUN, and
place the metaLUN in SG for the host.
Answer: A

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NO.25 A new CLARiiON arrives at a customer's site and an EMC Customer Engineer performs the physical
installation. The storage administrator is under a lot of pressure to have the array online and in production
by the end of the week. The storage administrator selects several Windows and Solaris servers for the
initial production rollout. The storage requirements have been agreed upon and the storage administrator
creates 30 LUNs of various sizes based upon EMC best practices.
The administrator works with the server team to install HBAs, update settings, install EMC software, and
then perform the necessary cabling and zoning requirements. After the hosts successfully register with
the CLARiiON array, the Windows and Solaris administrators state each server has 30 LUNs allocated.
What does the storage administrator need to accomplish to ensure each server has access to the
appropriate LUNs?
A.Create the appropriate storage groups
B.Disable Access Logix
C.Enable Access Logix
D.Fix the incorrect zones
Answer: C

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NO.26 Click the Exhibit button.
Based on the exhibit, what happened between 05:21 A.M. and 06:56 A.M.?
A.CLARiiON back-end port was disconnected
B.CLARiiON front-end port was disconnected
C.MirrorView connection failed
D.SAN Copy connection failed
Answer: C

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NO.27 A customer has recently upgraded their CLARiiON to FLARE R26. What software and configuration
changes must the storage administrator ensure are in place to take advantage of the Asymmetric
Active/Active features of the software?
A.PowerPath 5.0; and change all initiators to use Failover mode 2
B.PowerPath 5.0; disable ArrayCommPath, and change all initiators to use Failover mode 4
C.PowerPath 5.1; and change all initiators to use Failover mode 4
D.PowerPath 5.1; disable Array CommPath, and change all host initiators to use Failover mode 3
Answer: C

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NO.28 Click the Exhibit button.
What is true of LUN 3?
A.Disk crossings are excessively high
B.Disk utilization is above the best practices threshold
C.The host data is misaligned
D.The number of stripe crossings indicates a large I/O size
Answer: C

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NO.29 Click the Exhibit button.
While performing a routine check of a CX3-40 with FLARE R26 the storage administrator receives an
error while trying to clear the logs. What is the cause of the error?
A.Host agent is not running
B.The Privileged User List is empty
C.The user is logged in as a security administrator role
D.The user is logged in with a manager role
Answer: D

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NO.30 A new CLARiiON arrives at a customer's site and an EMC Customer Engineer performs the physical
installation. The storage administrator is under a lot of pressure to have the array online and in production
by the end of the week. The storage administrator selects several Windows and Solaris servers for the
initial production rollout. The storage requirements have been agreed upon and the storage administrator
creates 30 LUNs of various sizes based upon EMC best practices.
The administrator works with the server team to install HBAs, update settings, install EMC software, and
then perform the necessary cabling and zoning requirements. After the hosts successfully register with
the CLARiiON array, the Windows and Solaris administrators state each server has 30 LUNs allocated.
What does the storage administrator need to accomplish to ensure each server has access to the
appropriate LUNs?
A.Create the appropriate storage groups
B.Disable Access Logix
C.Enable Access Logix
D.Fix the incorrect zones
Answer: C

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Code d'Examen: E20-329
Nom d'Examen: EMC (Technology Architect Backup and Recovery Solutions Design Exam)
Questions et réponses: 206 Q&As

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NO.1 Click the Calculator icon in the upper left-hand corner.
Acustomer has a new Avamar server with four 2 TB data nodes. This server is backing up two Avamar
clients. The first client has 8 GB of RAM and two file systems. The first file system has 3 million files
consuming. 75 TB. The second file system contains 5 million files consuming 1 TB of space.
The second client has 10 GB of RAM and one file system containing 4 million files consuming 1.2 TB of
space. Both clients will belong to the same backup group. How long will the steady-state backup group be
expected to run?
A. 5 hours
B. 6 hours
C. 7 hours
D. 8 Hours
Answer: B

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NO.2 As illustrated in the exhibit, a customer has a backup environment that includes clients and server
managed by a backup media server. Data is written to a primary storage device and archived to an
application server. The customer has onsite retention strorage, which is replicated to a disaster recovery
site. In addition, archive-to-tape is requires.
Which components would you replace when initiating a Data Domain solution?
A. onsite retention storage and offsite disaster recivery storage
B. Backup media server and clients
C. Primary storage and onsite retention storage
D. Backup media server and archive application server
Answer: A

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NO.3 A customer has an operational EMC NetWorker enviroment using an Avamar deduplication node. They
want to protect the Avamar deduplication node using replication. The customer has approached EMC for
advice on what considerations thaey should take into account.
What is a consideration in this envitonment.?
A. NetWorker automatically configures all replication targets associated with a given deduplication node
B. Scheduled replications of a NetWorker deduplication node must be set up in Avamar
C. Recovery from the replications node must be performed from Avamar Administror
D. Schedled replications of a NetWorker deduplication node must be set up in NetWorkwe
Answer: B

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NO.4 An EMC NetWorker customer wants to use the deduplication option. The requirement for a database
server in their enviroment is to perform deduplication backups for file system data and NetWorker tape
backups for database data. They want to allow a maximum of two parallel streams for file system backups
and a maximum of four steams for database backups.
How can this be accomplished?
A.
B.
C.
Group: Bsckups
Parallelism: 0
Client for FS backups
Parallelism: 2
Client for FS backups
Parallelism: 4
D.
Group: Bsckups
Parallelism: 4
Client for FS backups
Parallelism: 2
Client for FS backups
Parallelism: 4
Answer: C

EMC   E20-329   E20-329

NO.5 Acustomer is piloting a Data Domain appliance and notices that performance in the writing of backups is
not optimal. Based on the System Show Performance metrics represented in the exhibit, which operation
will provide the most improved the most improved performance?
A. Reduce the read streams
B. Suspend verification
C. Disable cleaning
D. Disable replication
Answer: A

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NO.6 An EMC Avamar customer s Gen-1 system with 4 TB of GSAN capacity has reached read-only
threshold. The customer indicates that the deduplicated backup data accounts for approximately 3.5 TB.
What is the most likely cause for the read-only threshold being reached?
A. Deduplication rate is less than expected, accounting for the remaining GSAN capacity
B. Combination of system overhead, logs, and checkpoints account for the remaining GSAN capacity
C. RAIN overhead accounts for the remaining available GSAN capacity
D. Checkpoints and logs account for the remaining GSAN capacity
Answer: C

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NO.7 The EMC account team has been asked to design a NetWorkwwe backup solution with the following
requirements.
1. One copy of backup data needs to be stored locally.
2. An additional copy of backup data needs to be stored on tape at an offsite location.
What should be done to satisfy the new regulations with minimal impact to the current backup
performance?
A. Clone to tape and send the clone copy to the remote location
B. Back up the data concurrently to the remote and local locations
C. Archive the backup data to the remote location
D. Archive the data to the remote location before being backed up locally
Answer: C

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NO.8 A customer has a Data Domain appliance that has reached 90% of maximum capacity. The customer
does not want to purchase any additional storage.
Wht will increase the average available capacity of the Data Domain appliance?
A. Decrease the backup retention period
B. Increase the snapshot expiration period
C. Increase the nurrter of strearns
D. Decrease the cleaning frequency
Answer: A

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NO.9 An organization is backing up a combination of databases, e-mail, and file system data types in their
data center to a Data Domain appliance using a single backup server. The backup system administrator
creates separate subdirectories for each of the three data types under the default share.
What benefit is provided by this approach?
A. Analyze compression with more granularity
B. Simplity backup device configuration
C. Enhance performance of the database backup
D. Improve file system cleaning performance
Answer: B

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NO.10 A customer is using Data Protection Advisor (DPA) to moitor their backup enviroment. What is a
benefit of using remote Collectors?
A. Reduces the amount of information being transferred to the DPA server
B. Collects system-related statistics for a given host
C. Improves the collection performance of backup statistics
D. Provides more complete backup reports
Answer: B

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Code d'Examen: E20-598
Nom d'Examen: EMC (Backup and Recovery - Avamar Specialist Exam for Storage Administrators)
Questions et réponses: 177 Q&As

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NO.1 A storage node in a multi-node Avamar server has failed and a replacement node has been added to
the grid. What is used to reconstruct the data on the new node?
A. RAIN
B. RAID
C. Checkpoint
D. Replication
Answer: A

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NO.2 What is used by EMC Avamar to provide system-wide fault tolerance?
A. RAID, RAIN, Checkpoints, and Replication
B. RAID, RAIN, Checkpoints, and HFS check
C. Asynchronous crunching, Parity, RAIN, and Checkpoints
D. HFS check, RAIN, RAID, and Replication
Answer: A

EMC   certification E20-598   E20-598 examen

NO.3 Which four account management actions can be performed from the EMC Client Manager interface?
A. Move clients to a new server Retire clients Move clients to a new domain View management log
B. Move clients to a new domain Retire clients Modify client group associations Schedule backups
C. View management log Modify replication Retire clients Move clients to a new server
D. View management log Retire clients Delete clients Browse clients
Answer: A

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NO.4 For each file that is backed up in an EMC Avamar system, how many total bytes are added to the file
cache.?
A. 20
B. 24
C. 40
D. 44
Answer: D

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NO.5 Which processes are started automatically during an EMC Avamar Windows client installation?
A. avagent and avscc only
B. avtar and avagent only
C. avtar, avagent, and avscc
D. avscc and avtar only
Answer: A

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NO.6 A customer is unable to connect to their EMC Avamar server when using the Avamar Administrator
GUI. If default settings are being used, which port must be open for a successful connection?
A. 5555
B. 7778
C. 8443
D. 8080
Answer: B

EMC examen   E20-598 examen   E20-598   E20-598 examen

NO.7 In EMC Avamar 6.0, which tool is used to completely move clients to a new Avamar server?
A. Client Manager
B. Enterprise Manager
C. Activation Manager
D. Avamar Administrator
Answer: A

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NO.8 Which interface is used to start Avamar Client Manager?
A. Enterprise Manager
B. Command Line
C. cron job
D. Avamar Administrator
Answer: A

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NO.9 Which hash type represents an individual data chunk processed during an EMC Avamar backup?
A. Atomic
B. Root
C. Composite
D. Metadata
Answer: A

certification EMC   E20-598   E20-598

NO.10 On an EMC Avamar server, what is the file extension of stripes that contain backup chunks?
A. *.dat
B. *.usd
C. *.chd
D. *.cdt
Answer: A

EMC   certification E20-598   E20-598   E20-598

NO.11 Which time zone is used on EMC Avamar nodes?
A. Local time on the utility node; GMT/UTC on the storage nodes
B. GMT/UTC on the utility node; local time on the storage nodes
C. All node types use the local time
D. All nodes use GMT/UTC time
Answer: A

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NO.12 The EMC Avamar client needs to backup a file and has performed sticky-byte factoring. This
results in the following:
-Seven (7) chunks that will compress at 30%-Four (4) that will compress at 23%-Two (2) chunks at 50%
compression
How many chunks will be compressed prior to hashing?
A. 4
B. 7
C. 9
D. 13
Answer: C

EMC examen   E20-598   E20-598   E20-598 examen

NO.13 Which port on the Avamar server does the client connect to when performing a backup with encryption
enabled?
A. 27000
B. 28001
C. 28002
D. 29000
Answer: D

EMC examen   E20-598   E20-598   certification E20-598   E20-598 examen

NO.14 What is a characteristic of variable block deduplication?
A. Better granularity and more efficiency
B. Commonly provided in snapshot technologies
C. Small changes require all segments to change
D. Most common deduplication method
Answer: A

EMC   E20-598   E20-598   certification E20-598

NO.15 Which size Avamar Gen4 storage node is supported for a RAIN configuration?
A. 1.0 TB
B. 1.3 TB
C. 2.6 TB
D. 3.9 TB
Answer: D

EMC examen   certification E20-598   E20-598   E20-598   E20-598

NO.16 What are three types of EMC Avamar hashes?
A. Composite, Root, and Atomic
B. Root, Atomic, and Index
C. Composite, Atomic, and Stripe
D. Root, Atomic, and Parity
Answer: A

EMC   certification E20-598   E20-598 examen

NO.17 Based on the exhibit, which type of backup configuration is represented?
A. Image Level Backup with VADP (vSphere)
B. VMware Guest Level Backup
C. VMware Consolidated Backup (VCB)
D. VMware Console Backup
Answer: A

EMC examen   E20-598 examen   E20-598   E20-598

NO.18 Which tool is used to move a client to a new domain in EMC Avamar 6.0?
A. Client Manager
B. Activation Manager
C. Enterprise Manager
D. Installation Manager
Answer: A

EMC examen   E20-598   E20-598

NO.19 In an EMC Avamar backup operation, which process always produces identical chunk results given the
same data?
A. Sticky-byte factoring
B. Compression
C. File caching
D. Hashing
Answer: A

EMC   E20-598   certification E20-598

NO.20 How many simultaneous client connections per node will an EMC Avamar server support?
A. 10
B. 15
C. 18
D. 25
Answer: C

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