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EMC E20-895 Backup Recovery - Avamar Expert Exam for Implementation Engineers Exam Practice Test

Demo: 38 questions
Total 259 questions

Backup Recovery - Avamar Expert Exam for Implementation Engineers Questions and Answers

Question 1

An EMC Avamar customer has a requirement to backup SQL databases with multiple filegroups. As a test of data recovery procedures, the backups need to be restored to a different server.

Which restore method should be used?

Options:

A.

Redirected restore using a SQL backup format file

B.

Redirected restore from a differential SQL backup

C.

Redirected restore using a SQL transaction log file

D.

Redirected restore from an incremental SQL backup

Question 2

An EMC customer has purchased a new Accelerator Node for their NDMP backups. During the configuration process, you receive an error that there is an authentication error. You discover that the 'ndmp user' is not created. Which command is used to create the user account?

Options:

A.

server_user server_2 -add -md5 ndmp

B.

server_user server_all -add -password ndmp

C.

server_user --server_2 -create ndmp -password ndmp

D.

server_user server_2 --create ndmp

Question 3

A customer wants to protect their DB2 databases with EMC Avamar. You have configured some test databases and have performed several successful backups of various types. They would now like to restore the databases to complete their testing.

In order to restore from an online backup with archive logs, which prefix should they look for when choosing a backup file?

Options:

A.

hl

B.

c

C.

cl

D.

h

Question 4

Refer to Scenario 6.

The customer needs to add another 2 TB of database data into the replicated environment. The disaster recovery Data Domain system is expandable but the HQ Data Domain system is full.

Which replication solution supports the new capacity requirement at the least cost?

Options:

A.

Add an additional Avamar server to both sites and integrate with the HQ DD system

B.

No change in DD capacity is needed at the HQ site

C.

Add an additional DD server to the Avamar/DD system at the HQ site

D.

Add an additional DD system to both sites and integrate with the HQ Avamar system

Question 5

An EMC Avamar customer is performing a Granular Level Restore of a SharePoint server. They selected the "Restore everything to a different location" option and set "Absolute Destination" to E:\. However, the restore has failed. What is a possible reason for this behavior?

Options:

A.

E:\ drive is already in use

B.

Everything must be restored to the original location

C.

Absolute Destination must be on a local hard drive

D.

SharePoint server is online

Question 6

An EMC Avamar backup administrator wants to use their company login account for administering an Avamar server. The procedures were followed successfully to update the configuration for external LDAP authentication. However, they still cannot successfully log into Avamar Administrator with the account. Which action is needed?

Options:

A.

Assign a default password to the account in Avamar

B.

Add the account to the Avamar server O/S

C.

Add the user account to Avamar and assign a role

D.

Add an Avamar domain with the same name as the LDAP domain

Question 7

An EMC Avamar customer has a Celerra running DART 6.0 with 20 TB of data. There are approximately 10 million files distributed across two Data Movers. They would like to backup the NAS in approximately five hours. What is the maximum number of streams that can be configured?

Options:

A.

2

B.

4

C.

8

D.

16

Question 8

A customer is using deduplication nodes in their EMC NetWorker environment. They have configured a deduplication node to replicate to an alternate deduplication node and are cloning the metadata to a secondary device. After several successful backups, the customer wants to validate that they can recover data from the replication target.

What can be done to ensure the data is recovered from the replication target?

Options:

A.

Set RECOVER_FROM_REP_HOST environment variable on the NetWorker server

B.

Set RECOVER_FROM_REP_HOST environment variable on the client system

C.

Initiate the recovery from the metadata clone volume

D.

Modify the client deduplication node setting to the replication target prior to running the recovery

Question 9

A customer has setup their EMC Celerra to backup through an Avamar NDMP Accelerator Node. They are not seeing any increased performance since the initial backup. They have investigated the Celerra and there are no outstanding issues.

What is a potential reason for the poor backup performance?

Options:

A.

Dataset options are set to Level 0

B.

Dataset advanced option is blank

C.

Data has a high change rate

D.

Dataset options are set to Level 1

Question 10

Refer to Scenario 2.

A customer's database administrators need to know that they can meet their RTO. In addition, they want to know how to test the throughput rate when recovering all data and how to format the recovery command to guarantee throughput.

What is a recommendation for testing the throughput rate and recovery?

Options:

A.

Using a recovery rate of 75 GB/hr/node, three nodes will meet the RTO.

Use --validate for testing of recovery throughput and --allnodes for recoveries.

B.

Using a recovery rate of 37.5 GB/hr/node, one node will meet the RTO.

No additional switches are needed beyond a simple recovery.

C.

Using a recovery rate of 37.5 GB/hr/node, three nodes will meet the RTO.

No additional switches are needed beyond a simple recovery.

D.

Using a recovery rate of 75 GB/hr/node, two nodes will meet the RTO.

Use --validate and --sequencenumber for throughput testing and recovery.

Question 11

Refer to Scenario 2.

After kicking off the initial backups, an EMC Avamar backup administrator reports that ‘Server DB1' completed its backup. However, ‘Server DB2' did not.

Given the information provided, what is impacting the backup time and what can done?

Options:

A.

‘Server DB2' is SPARC.

Hash calculations take longer than an X86; increase CPU power.

B.

File servers are taking too long.

Back up ‘Server DB2' first and then backup ‘Server DB1' and file servers.

C.

‘Server DB1' is taking too long to back up.

Back up ‘Server DB2' first, ‘Server DB1' next, and then all file servers.

D.

‘Server DB2' is SPARC.

Increase the amount of RAM to hold more hash cache.

Question 12

A customer has a 1 TB Oracle 10g database on a HP-UX 11.31 client. They have created two groups that run once every 24 hours. One group is for backing up the database; the other group is for backing up the file system. During the course of a week, the customer notices that the client is taking up twice the space as expected. What is a probable cause?

Options:

A.

Client is being backed up twice

B.

DBF files are not excluded in the file system dataset

C.

Group that backs up the database is being run twice a day

D.

Block Change Tracking is not being used

Question 13

An EMC Partner has a 1 X 4 Avamar server. They are backing up 4,000 desktop and laptop (DTLT) clients. Each client takes up to 20 minutes to complete a backup.

How long would it take to back up all the DTLT clients?

Options:

A.

4.2 hours

B.

4.6 hours

C.

5.6 hours

D.

6.2 hours

Question 14

A customer has been using EMC Avamar for deduplication backups of VMware. They have been performing guest level backups and now want to perform VMware image backups for disaster recovery. In order to perform image backups, what is recommended for this environment?

Options:

A.

SAN-attached datastore

B.

Image proxy Windows host

C.

Avamar client installed on the ESX server

D.

Avamar client running on the vCenter server

Question 15

An EMC customer has the following environment:

• VNX NAS running OE 7.0

• Avamar system with Gen3 hardware running v6.x software

• Avamar Accelerator Node with Gen4 hardware and 36 GB of memory running the v6.x Linux client

The VNX system has one storage device with 20 volumes created on it. For the best backup performance, how many accounts need to be created on the Accelerator Node?

Options:

A.

1

B.

2

C.

4

D.

8

Question 16

Refer to Scenario 9.

How large can the hash file grow?

Options:

A.

384

B.

704

C.

768

D.

1000

Question 17

An EMC Avamar customer is backing up a Microsoft Exchange 2007 Cluster. The Avamar Exchange VSS Client with Granular Level Restore (GLR) option selected was installed on both Exchange servers in the cluster. The customer needs to restore a single message.

What can the customer select as a restore destination?

Options:

A.

Current passive node

B.

Either the active or the passive node

C.

Current active node

D.

Any Windows host with an Avamar agent installed

Question 18

A customer wants to add the capability for source-based deduplication to their current EMC NetWorker environment. Their backup environment consists of two separate NetWorker servers and four storage nodes. One NetWorker server and two storage nodes protect their UNIX environment. The other NetWorker server and two storage nodes protect the Microsoft Windows environment. What is the minimum number of Avamar servers that are required to protect both environments?

Options:

A.

1

B.

2

C.

3

D.

4

Question 19

An EMC Avamar customer is using VADP to protect Microsoft Windows virtual machines (VMs) at an image level. They want to have the ability to perform file level recovery of select files. An Avamar Windows FLR proxy will be deployed to facilitate this.

Where should the FLR proxy be deployed for optimal backup and restore performance?

Options:

A.

LAN proximity to the ESX datastore the VMs reside on

B.

LAN proximity to the proxy backup servers

C.

LAN proximity to the Avamar server

D.

LAN proximity to the vCenter host

Question 20

An EMC customer is protecting 300 virtual machines (VMs) with guest level backup. All VMs reside on the same ESX server. The administrators are concerned with the CPU spike during backups since Avamar is trying to initiate as many backups as possible.

What is the best practice for preventing this spike in CPU on the ESX server host?

Options:

A.

Use network throttling parameters in the advanced options of the dataset.

B.

Reduce the connections per node limit on the Avamar server.

C.

Schedule each virtual machine to begin backups one hour apart.

D.

Migrate some of the VMs to another ESX host.

Question 21

A customer has an EMC Avamar server integrated with a Data Domain system as a backup solution. They would like to use encryption for the backups that are directed to the Data Domain system.

What should you advise the customer?

Options:

A.

Enable encryption-at-rest only on the Data Domain system.

B.

Enable in-flight encryption between the client and the Data Domain.

C.

Neither in-flight encryption nor encryption-at-rest are supported.

D.

Both in-flight encryption and encryption-at-rest are supported.

Question 22

A backup administrator attempts a hot backup of an Oracle database and receives the following error message: Unable to send CTL message.

What is the cause of this issue?

Options:

A.

Number of allocated channels is set too high

B.

/var/avamar folder has improper permissions

C.

Database is running in NOARCHIVELOG mode

D.

Database is currently unmounted and offline

Question 23

A company recently deployed an MS SharePoint Farm that consists of three Web Front End (WFE) servers, three application servers and two database servers. Avamar backup software setup and configuration was completed according to EMC best practices. WFE server #1 was designated as “owner” of the backup.

The company also decided that they need Granular Level Recovery functionality and installed Avamar GLR plug-in and Kroll Ontrack on WFE server #2. Federated backups of this farm were running successfully for the last 30 days.

One day ago, the SharePoint administrator discovered corruption in the Central Administration content database and is asking to recover individual items using GLR functionality.

How can the company accomplish this task?

Options:

A.

Use a restore of the entire farm to restore the Central Administration content database.

B.

Use the redirected restore option with GLR plugin and Kroll Ontrack to extract required items back to the farm.

C.

Use a GLR restore and MS SQL administration tools to extract required items back to the farm.

D.

Use the redirected restore of the Central Administration content database to alternative farm and extract required items from there.

Question 24

A customer has an EMC Avamar system backing up a Celerra running DART 6.0 using a single 36 GB NDMP accelerator node. They are also going to back up a VNX OE 7.0 system using the same NDMP accelerator node.

Each NAS device has 6 GB RAM and four volumes configured on it. Backups will be configured on the Avamar system for both NAS storage devices to start at the same time.

What will occur when the NDMP backups start using default settings?

Options:

A.

One NAS device will start its backup with four streams; the other will queue.

B.

Both backups will start, each with two active streams.

C.

One NAS device will start its backup with one stream; the other will queue.

D.

Both backups will start, each with one stream.

Question 25

A customer has installed EMC NetWorker with Avamar as its device for deduplication disk storage. The administrator is setting up a NetWorker client for a Microsoft Windows 2008 SP2 server to backup to their Avamar system.

Which process is responsible for the bulk of the deduplication processing on the client?

Options:

A.

nsravtar

B.

nsravamar

C.

nsradmin

D.

save

Question 26

A company is troubleshooting their existing Dell EMC Avamar backup schedules of an Oracle database. Every Sunday, a Level 0 backup job runs against the database and on all other days, a Level 1 backup job is run. They notice that each Level 1 backup job rakes longer than the previous one.

What needs to be adjusted in the schedule to keep the runtime of the Level 1 jobs to a minimum?

Options:

A.

Add a full level backup half-way through the week

B.

Change the Level 1 differential jobs to Level 1 cumulative jobs

C.

Alternate using Level 1 differential jobs and level 1 cumulative jobs

D.

Change the Level 1 differential jobs to Level 1 differential jobs

Question 27

An EMC customer has NetWorker integrated with an Avamar deduplication node. They want to size the AFTD for storing metadata for 800 million files from various client backups.

Based on EMC best practices, what is the recommended AFTD size?

Options:

A.

800 MB

B.

800 GB

C.

1,600 GB

D.

2 TB

Question 28

A Dell EMC customer has a Microsoft Hyper-V 2012 cluster within an SMB environment. The customer wants to perform image level backups of their VMs.

On which device(s) must the Hyper-V plug-in be installed?

Options:

A.

All cluster nodes.

B.

Cluster proxy node only

C.

VM guest OS

D.

Active cluster node only

Question 29

A customer wants to restore a database to a certain point in time. The latest full backup and incremental backups are accessible and the original database is still online.

What could be causing the point-in-time restore to fail?

Options:

A.

They tried to restore the database to another server.

B.

The database was online during the restore.

C.

They tried to restore to the same instance.

D.

The last full backup failed.

Question 30

An EMC NetWorker customer plans to implement deduplication for their file server backups. They are currently keeping their monthly backups for one year and daily backups for 1 month. They want to keep the same retention for daily and monthly backups. In addition, they need monthly backups stored on tapes.

Which cost effective solution would you recommend that the customer install?

Options:

A.

Avamar deduplication node only

B.

Avamar deduplication node and media access node

C.

Avamar with ADT

D.

Avamar Virtual Edition with Tapeout

Question 31

A backup administrator with an existing Avamar 7.0 multi-node server has just integrated a Data Domain appliance running DDOS 5.3 into their backup environment.

To provide disaster recovery of the Avamar server, the administrator wants to store Avamar checkpoint backups on the new Data Domain system.

What would you advise the customer?

Options:

A.

Avamar multi-node servers do not support checkpoint backups to Data Domain.

B.

Avamar 7.0 does not support checkpoint backups to Data Domain.

C.

The Data Domain DDOS version needs to be 5.4 or above.

D.

Data Domain does not support the storage of Avamar checkpoint backups.

Question 32

What is the maximum number of concurrent streams supported by the ADMe tape out application?

Options:

A.

5

B.

10

C.

20

D.

30

Question 33

A Business implemented SharePoint 2010 in their environment and uploaded many business documents onto the SharePoint from multiple file servers. They also set up backups of their SharePoint farm with the Avamar SharePoint VSS plug-in.

They discovered that backups of their backend SQL server databases (DBs) were running long so they started using the SQL plug-in to perform incremental backups of their SQL databases.

What should you advise the customer?

Options:

A.

More storage space is needed to back up the databases.

B.

SharePoint content DB will not be backed up with SQL plug-in.

C.

Granular level recovery is supported with the SQL plug-in.

D.

The SQL plug-in can be used for SharePoint Disaster Recovery.

Question 34

A Dell EMC Avamar administrator is having difficulty backing up one of their file servers. They are able to ping the Avamar server from the client and ping the client from the server. However, they are unable to browse the client directories when selecting data for backup.

What should be done to correct this issue?

Options:

A.

Deactivate the client and then activate it

B.

open Firewall port 27000 on the client.

C.

Enter the Avamar server address into the avscc.cmd file

D.

Recreate the .dtb file on the client only.

Question 35

An EMC Avamar administrator uses the avtar paramater hashcachemax = 96 to change the maximum size of the hash cache.

What is the maximum size in MB that the hash cache will be allowed to grow to?

Options:

A.

24

B.

48

C.

96

D.

192

Question 36

An EMC customer has NetWorker integrated with an Avamar deduplication node, which is also replicating to the Avamar disaster recovery node. The auto recovery operation failed from the replica during the recovery of a Windows 2008 client. EMC support suggested to use the “RECOVER_FROM_REP_HOST=Yes” environment variable. The customer recovers the data successfully.

Where will this environment variable be set?

Options:

A.

Windows 2008 client

B.

Avamar deduplication node

C.

Avamar replication node

D.

NetWorker server

Question 37

An Avamar customer has a requirement to back up their SQL DB with multiple filegroups. One of the requirements is to perform a redirected restore of the SQL database data to an operating system file.

What is a good reason for doing this?

Options:

A.

Avamar SQL Server Client is not on the target server.

B.

Avamar SQL Server Client is not on the source server.

C.

Backup is single-streamed.

D.

SQL REPLACE option overwrote the database with a different name.

Question 38

A company's backup environment consists of both file system and database clients. An integrated Data Domain system was added to their existing EMC Avamar single-node Gen4S server to add backup capacity. Backups of several large Exchange and Oracle database clients were then reconfigured to back up to Data Domain storage. After several months, the backup administrator notices that the metadata utilization graph appears in red.

What is a possible cause?

Options:

A.

Avamar cannot convert unused data stripes to metadata stripes.

B.

Data Domain is unable to clean enough metadata containers to hold the backup data.

C.

The Avamar server has exceeded 65% of GSAN utilization and backups have stopped running.

D.

Avamar garbage collection has failed to free up the necessary empty stripes.

Demo: 38 questions
Total 259 questions