Free E20-598 Exam Dumps PDF Preview

Question 1

Single choice

By default, where are the cache files located on an EMC Avamar Windows backup client?

A
C:\Program Files\avs\var
B
C:\Program Files\avs\var\clientlogs
C
C:\Program Files\avs\etc
D
C:\Program Files\avs\bin

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Correct answerA

Question 2

Single choice

A file server-only environment is backing up data to a 1.0 TB EMC Avamar Virtual Edition server.
On average, how much new backup data may be added per day to remain in a steady capacity state?

A
2 GB
B
4 GB
C
6 GB
D
8 GB

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Correct answerB

Explanation

Question 3

Single choice

What is the maximum number of simultaneous backups that can be performed using an EMC Avamar NDMP accelerator with 32 GB of RAM for EMC Celerra DART 6?

A
4
B
8
C
12
D
16

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Correct answerA

Explanation

Question 4

Single choice

An EMC Avamar Gen4 server has arrived at a customer's site. You begin reviewing the hardware for an Avamar 6 installation. You find that two of the five nodes are Gen3 running RHEL OS and the others are running SLES OS.
Can you proceed with the install?

A
No. All nodes in a Gen4 server must be Gen4 running SLES OS.
B
Yes. The two nodes running RHEL can be re-kickstarted with SLES OS.
C
Yes. The three nodes running SLES can be re-kickstarted with RHEL OS.
D
No. All nodes in a Gen4 server must be Gen4 running RHEL OS.

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Correct answerA

Question 5

Single choice

According to EMC best practices, what is the maximum percentage of physical RAM that should be allocated for the hash and file caches combined?

A
15
B
25
C
30
D
40

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Correct answerB

Question 6

Single choice

In which directory are the EMC Avamar administrator logs located?

A
/usr/local/avamar/server_log
B
/usr/local/avamar/var/log
C
/usr/local/avamar/var/mc/server_data
D
/usr/local/avamar/var/mc/server_log

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Correct answerD

Explanation

Question 7

Single choice

When using YAST to set up networking on a Gen4 Avamar node, how do you backspace in a field?

A
Ctrl-h
B
Ctrl-b
C
Backspace
D
Ctrl-c

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Correct answerA

Question 8

Single choice

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

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Correct answerA

Question 9

Single choice

For which situation is the adaptorctl.pl command used?

A
Associating an Avamar server with a Backup Recovery Manager server
B
Moving a client to a different domain in Avamar Client Manager
C
Adding a server to be managed with Enterprise Manager
D
Configuring a network adapter card for backup data traffic

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Correct answerA

Question 10

Single choice

According to EMC best practices, what is recommended when planning for an EMC Avamar client deployment?

A
Maximum of 5 million to 10 million files per client
B
Maximum of 5 TB of database data per client
C
Maximum of 10 TB of file system data per client
D
Maximum of 500 GB of database data per client

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Correct answerA

Question 11

Single choice

In EMC Avamar, what is the purpose of the p_cache.dat file?

A
Determines if a chunk is already stored on the Avamar server
B
Determines if a file is already stored on the Avamar server
C
Stores storage node IP addresses
D
Sets backup flags and options

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Correct answerA

Question 12

Single choice

An EMC Avamar customer needs to estimate how much time it will take to replicate 3 TB of Avamar Source server data to their target server, given root-to-root migration. Using iperf, it is determined that data will be transferred at 54 GB/hour between the two Avamar servers.

How many hours will it take to replicate to the target?

A
76
B
81
C
89
D
99

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Correct answerB

Question 13

Single choice

What are the three O/S user accounts that are used by the EMC Avamar server for authentication?

A
root, admin, and dpn
B
root, MCUser, and repluser
C
admin, MCUser, and repluser
D
root, dpn, and MCUser

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Correct answerA

Question 14

Single choice

Which Information is required when registering an EMC Avamar environment to IBGroup?

A
Microcode number
B
Avamar node sizes
C
LUN configuration
D
Avamar license size

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Correct answerA

Question 15

Single choice

What is an EMC Avamar best practice for setting backup retention policies for a new backup environment?

A
Use advanced retention policies for monthly backups only
B
Create an individualized retention policy for each client
C
Develop retention policies before taking production backups
D
Retain all daily backups for at least 30 days

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Correct answerC

Explanation

Question 16

Single choice

In steady state, what is the approximate rate of data removed from an Avamar grid during a daily garbage collection?

A
10 GB per hour per node
B
10 GB per hour per grid
C
100 GB per hour per node
D
100 GB per hour per grid

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Correct answerA

Explanation

Question 17

Single choice

Which functionality is only available with EMC Avamar selective replication?

A
Replication of selected clients
B
Replication of selected datasets of selected clients
C
Replication to selected destinations
D
Replication on selected days of the week

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Correct answerA

Question 18

Single choice

What is a characteristic of EMC Avamar VMware Image backups?

A
Only one proxy server is supported per vCenter server
B
File-level restores are supported for Linux clients only
C
Change Block Tracking can be used to shorten backup times
D
The Avamar client is installed on each VMware virtual machine

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Correct answerC

Question 19

Single choice

Which client process listens for a work order from the EMC Avamar server?

A
avagent
B
avtar
C
avscc
D
mcs

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Correct answerA

Explanation

Avamar Node Types and Processes There are several different types of Nodes within an Avamar Server. The Utility node is the identity of the Avamar Server and provides the bulk of the internal Avamar server processes such as: Avamar Administrator (used to manage the Avamar Server from a gui), cron jobs, DNS, NTP, external authentication, web access, MCS and EMS.

MCS (Management Console Server) provides centralized management including scheduling of backups, restore of backups, monitoring and reporting.

EMS (Enterprise Manager Server) provides web based management for multiple Avamar Servers as well as monitoring and configuration for Avamar Replication.
Web Access provides access to documentation, backup plug-ins as well as remote File System restore access to end users.
Are next type of node is the Storage Node, which run a process called gsan. This service communicates with the avtar command on the individual backup clients. Avtar communicates with a storage nodes gsan process, then that storage node spreads the data across the available data nodes.

A Spare Node is an active node that is present in a multi-node RAIN (Redundant Array of Independent Nodes) grid. The interesting thing about the Spare Node is that it is NOT a hot spare. There is a procedure in place that needs to be followed when a failed Storage Node occurs. In fact, the Avamar Server doesn't even care if the Spare Node is powered on, so if you are a "Green" conscience company, feel free to leave the Spare Node powered down. EMC Best Practice is to leave the Spare Node up and active though.
Avamar Backups clients can be installed with 2 different types of client plug-ins: File System and Databases. The Avamar client uses 2 processes in the backup and restore process: Avtar and Avagent.
The Avagent process listens for backup/restore work orders from the MCS service on the Utility Node using port 28002 and executes the avtar command that handles the backup/restore processes and communicates with the gsan service on the storage nodes. This process is depicted in the included picture above.
Lastly, in a previous blog, I discussed the 2 different licensable options for Avamar and how the disks are comprised in each Storage Nodes type. These are depicted in the picture above as well as a breakdown of how the disks are structured.

Question 20

Single choice

An EMC Avamar system is integrated with an EMC Data Domain system.

When a backup has expired on the Avamar server, what is the impact to the backup data stored on the Data Domain system?

A
Backup data is marked for deletion on the Data Domain system
B
Backup data is deleted from the Data Domain system
C
Backup data on the Data Domain system is replicated 59
D
Cleaning is run on the Data Domain system

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Correct answerA

Question 21

Single choice

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

A
Retention rules are applied to backups based on the backup completion time
B
Retentions are dynamically assigned to scheduled backups based on when the backups occur
C
The daily retention value is automatically assigned to on-demand backups
D
An upper retention limit is dynamically applied to all backups

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Correct answerB

Explanation

Question 22

Single choice

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

A
*.dat
B
*.usd
C
*.chd
D
*.cdt

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Correct answerA

Question 23

Single choice

Which port does EMC Avamar use to access the Management Console database for reporting?

A
5555
B
7778
C
8443
D
8080

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Correct answerA

Question 24

Single choice

A backup administrator is performing a disaster recovery for a Windows Server 2008 system. However, the Avamar Disaster Recovery Wizard is unable to perform the recovery.

What is a possible reason for this?

A
Windows 2008 OS software has not been installed on the replacement hardware
B
The Avamar Disaster Recovery Wizard does not support Windows 2008
C
A backup using the Windows VSS plug-in and the full file system was not performed
D
A backup using the Avamar Server Restore Option was not performed

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Correct answerB

Explanation

While performing the backup of system state using Windows VSS plugin choose the option "Create Disaster Recovery Backup", this option will allow you to perform restore of the system using "Avamar disaster Recovery Wizard"
https://community.emc.com/thread/114519

Question 25

Drag & drop

DRAG DROP

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Question 26

Single choice

What is a consideration for using the Configuration section within EMC Backup and Recovery Manager?

A
Only 1:1 fan in replication should be configured
B
Only 1:1 fan out replication should be configured
C
Only server versions before 7.0 should be configured
D
Only server versions 7.0 and up can be configured

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Correct answerB

Question 27

Single choice

How many total concurrent backup jobs can be run on an EMC Avamar server?

A
17 backup jobs per storage node
B
17 backup jobs per storage node, plus 1 per Avamar server
C
18 backup jobs per storage node
D
18 backup jobs per storage node, minus 1 per Avamar server

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Correct answerD

Explanation

Question 28

Single choice

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

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Correct answerB

Explanation

AVE 7

AVE 6

Question 29

Single choice

An EMC Avamar Virtual Edition server is created using thin provisioned virtual disks.

What effect will this have instead of using thick provisioning?

A
Benchmark results will be inaccurate
B
Avamar capacity will be reduced
C
Disk performance will be faster
D
Memory requirements will be smaller

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Correct answerA

Explanation

Question 30

Single choice

On a single-node Gen4 EMC Avamar Data Store, what is the optional use of the GB2 port?

A
Outgoing replication
B
MC and administrative traffic
C
High availability
D
Connection to the internal switch

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Correct answerA

Question 31

Single choice

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

A
Accelerator Node
B
ATI 9924 24-port switch
C
1 Gb Network Interface Cards
D
RAM Memory Modules

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Correct answerA

Question 32

Single choice

What is the maximum number of backups that can be running per Avamar storage node in order for HFS check to initiate successfully?

A
1
B
2
C
3
D
4

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Correct answerB

Question 33

Single choice

A company has 50 clients backing up to an EMC Avamar server. The storage administrator has decided to enable desktop/laptop (DTLT) support for several of the Microsoft Windows client machines.

Where is this support enabled?

A
Avamar client software installation
B
Avamar Windows Client Options menu
C
Avamar Administrator Policy window
D
Windows File System plug-in

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Correct answerA

Question 34

Single choice

An EMC Avamar customer is analyzing the DPN Summary report shown in the exhibit.

What does the field "TotalBytes" represent?

A
Number of bytes examined during the backup
B
Number of bytes from modified files not sent due to commonality
C
Total bytes reduced due to compression
D
Total bytes sent to the server during the backup

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Correct answerB

Explanation

Question 35

Single choice

During EMC Avamar garbage collection, which backups are candidates for deletion?

A
Backups that failed HFS check
B
Backups that were replicated to Data Domain
C
Backups of clients that have been retired
D
Partial backups older than seven days

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Correct answerD

Explanation

For initial backup of Avamar clients, it's best to start with a small number of clients to produce a dataset from which commonality will be generated. This will increase the backup speed of following clients. On a new Avamar system, consider enabling overtime because all the data is new and there won't be much maintenance to take place. Never enable overtime on an existing Avamar, rather configure the use of partial backups to be saved. Partial backups are saved for 7 days and are not deleted by the garbage collection process. When an unfinished job ends before completing and partial backups are enabled, the backup job will continue from the last known state and will complete faster.
http://gregandthenetwork.blogspot.com/2013/12/avamar-configuration-design-best.html
https://communities.vmware.com/message/2166196

Question 36

Single choice

A customer manually runs a backup job with a retention time of 60 days. After the backup completes, they notice that the retention tag was set to "N".

Why?

A
End User on Demand Retention was set to "no end date"
B
The default retention of the default group was set to "N"
C
On-demand backups are always assigned a retention tag of "N"
D
On-demand backups do not use retention times

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Correct answerC

Explanation

There are several way to set flags for on-deman backups.
Server Side backup:
1. "Backup & Restore" View, Can specify through "advanced" 2. "Policy" View, "Backup Up Group Now", Defined flags for group
3. "Policy" View, "Backup Up Client Now", Defind flags for selected group
Client Side Backup:
1. Avtar command line mode, user can specify flags 2. GUI, can not specify. N flag.
https://community.emc.com/thread/99800

Free E20-598 Exam Dumps Preview

Backup Recovery - Avamar Specialist for Storage Administrators

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