EMC E20-598 Online Practice Questions and Exam Preparation

EMC E20-598 Online Questions & Answers

• Question 91:

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

  A. Guest and VMware Image Proxy
  B. Guest, VCB, and VMware Image Proxy
  C. Guest and VCB
  D. VCB and VMware Image Proxy
  A. Guest and VMware Image Proxy

• Question 92:

  

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

  A. root, dpn, replonly
  B. admin, MCUser, repluser
  C. root, MCUser, replonly
  D. root, admin, dpn
  D. root, admin, dpn

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• Question 93:

  Which document should be approved and available to you at the time of a node addition to a customer's EMC Avamar server?

  A. SVC Qualifier
  B. Healthcheck report
  C. ConnectEMC (SYR) report
  D. Sales order
  A. SVC Qualifier

• Question 94:

  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
  D. 44

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  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 vamar 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 95:

  You are working in a Microsoft Windows Active/Passive cluster environment. On which cluster node(s) must the EMC Avamar Windows file system client be installed?

  A. Active and passive clients only
  B. Active client only
  C. Virtual client only
  D. Active, passive, and virtual clients
  A. Active and passive clients only

• Question 96:

  An organization is looking for EMC AVE as a backup solution for their remote site. They have two file servers with a daily change rate of 2 GB. They have three SQL servers with a daily change rate of 7 GB.

  Which AVE capacity edition should they use, assuming typical retention?

  A. 0.5 TB
  B. 1.0 TB
  C. 2.0 TB
  D. 4.0 TB
  B. 1.0 TB

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• Question 97:

  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
  A. Sticky-byte factoring

• Question 98:

  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
  D. 29000

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• Question 99:

  What is the physical memory requirement for an EMC AVE with 1 TB capacity?

  A. 6 GB
  B. 8 GB
  C. 16 GB
  D. 32 GB
  B. 8 GB

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  AVE 7

  

  AVE 6

  

• Question 100:

  A company using EMC Avamar has decided to virtualize their Microsoft Exchange environment using VMware guests instead of physical systems.

  Which backup methodology must they use to perform hot backups and restores of their Microsoft Exchange environment?

  A. VMware Consolidated
  B. VMware Image Level with Change Block Tracking
  C. VMware Image Level without Change Block Tracking
  D. VMware Guest Level
  D. VMware Guest Level

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  You must use the backup agents to backup Exchange and SQL. Databases on Image level backups will not be consistent.

  To backup the environments, you would need to do a guest level backup. i.e. Install the avamar agent, and the exchange VSS plugin on the Exchange server, and the SQL plugin on the sql server. If you want to backup the OS, ensure you

  create windows datasets to skip the database files on the server, otherwise you'll be backing up database files that look totally different each time (consuming huge amounts of space on the grid), that will be no good to you (they'll be

  inconsistent)!

  Besides the above points, the Exchange VSS plugin has some fairly useful functionality, like being able to backup databases in parrallel, and being able to do granular level restores (i'm still trying to get this to work).

  Well worth using.

  https://community.emc.com/thread/126801