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E20-598 Real Exam Questions

Backup Recovery - Avamar Specialist for Storage Administrators

237 questions available · Page 1 of 24

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Question 1 Single choice

By default, which snapshots are retained?

  1. A

    All checkpoints created in the last two days

  2. B

    The two checkpoints created during the maintenance window plus two created outside the maintenance window

  3. C

    The last two including the last validated checkpoint

  4. D

    The last two validated checkpoints in the last two days

Show answer and explanation

Correct answer: C

Explanation
Question 2 Single choice

On an EMC Avamar server, what is the file extension of stripes that contain backup chunks?

  1. A

    *.dat

  2. B

    *.usd

  3. C

    *.chd

  4. D

    *.cdt

Show answer and explanation

Correct answer: A

Question 3 Single choice

What are the three OS user accounts used by the EMC Avamar server for authentication?

  1. A

    root, dpn, replonly

  2. B

    admin, MCUser, repluser

  3. C

    root, MCUser, replonly

  4. D

    root, admin, dpn

Show answer and explanation

Correct answer: D

Explanation
Question 4 Single choice

What happens when an EMC Avamar advanced retention policy is used for backups?

  1. A

    Retention rules are applied to backups based on the backup completion time

  2. B

    Retentions are dynamically assigned to scheduled backups based on when the backups occur

  3. C

    The daily retention value is automatically assigned to on-demand backups

  4. D

    An upper retention limit is dynamically applied to all backups

Show answer and explanation

Correct answer: B

Explanation
Question 5 Single choice

In which ways can Avamar Replication be configured?

  1. A

    Avamar Administrator, MCCLI, Enterprise Manager

  2. B

    Avamar Administrator, Enterprise Manager, BRM

  3. C

    MCCLI, BRM, Enterprise Manager

  4. D

    MCCLI, BRM, Avamar Administrator

Show answer and explanation

Correct answer: B

Question 6 Single choice

Which feature is available through the Avamar Enterprise Manager, but not available through the Administrator console?

  1. A

    Configuring selective replication

  2. B

    Generating reports

  3. C

    Viewing policy information

  4. D

    Viewing system status information

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Correct answer: A

Question 7 Single choice

Which type of VMware backup methods does EMC Avamar version 5.
x and above support for ESX Server 4.0 and later versions?

  1. A

    Guest and VMware Image Proxy

  2. B

    Guest, VCB, and VMware Image Proxy

  3. C

    Guest and VCB

  4. D

    VCB and VMware Image Proxy

Show answer and explanation

Correct answer: A

Question 8 Single choice

When sizing a large file server on an EMC Avamar, how many bytes per file are added to the file cache?

  1. A

    20

  2. B

    24

  3. C

    40

  4. D

    44

Show answer and explanation

Correct answer: D

Explanation

The most important thing to do on a client with so many files is to make sure that the file cache is sized appropriately. The file cache is responsible for the vast majority (>90%) of the performance of the Avamar
client. If there's a file cache miss, the client has to go and thrash your disk for a while chunking up a file that may already be on the server.
So how to tune the file cache size?

The file cache starts at 22MB in size and doubles in size each time it grows. Each file on a client will use 44 bytes of space in the file cache (two SHA-1 hashes consuming 20 bytes each and 4 bytes of metadata).
For 25 million files, the client will generate just over 1GB of cache data.
http://jslabonte.blogspot.com/2013/08/avamar-and-large-dataset-with-multiples.html

Question 9 Single choice

Which command is used to prevent new client activities from starting on an EMC Avamar server?

  1. A

    avmaint suspend

  2. B

    dpnctl stop mcs

  3. C

    avmaint kill SESSION-ID

  4. D

    dpnctl stop ems

Show answer and explanation

Correct answer: A

Question 10 Single choice

What is considered a CRU (Customer Replaceable Unit) for Avamar Gen4?

  1. A

    Accelerator Node

  2. B

    ATI 9924 24-port switch

  3. C

    1 Gb Network Interface Cards

  4. D

    RAM Memory Modules

Show answer and explanation

Correct answer: A