D-AV-DY-23 Sample Questions Answers

Questions 4

By default, which snapshots are retained?

Options:

All checkpoints created in the last two days

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

The last two including the last validated checkpoint

The last two validated checkpoints in the last two days

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Questions 5

What is a characteristic of Dell Avamar VMware Image Level backups?

Options:

Change Block Tracking option can be used to shorten backup times 36

Avamar client software is installed on each VMware virtual machine

File-level restores are supported for all client operating systems

Image proxy must be located on a different ESX server from the ESX server hosting the target machines

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Questions 6

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

Options:

Maximum of 5 million to 10 million files per client

Maximum of 5 TB of database data per client

Maximum of 10 TB of file system data per client

Maximum of 500 GB of database data per client

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Questions 7

You need to install a multi-node Dell Avamar server. To which location should you copy the Avamar software file?

Options:

Utility node only

Utility node and active data nodes

Utility node, active data nodes, and spare node

Active data nodes only

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Questions 8

What is the recommended command that instructs the Dell Avamar server to redistribute backup data from the most full nodes to the least full nodes?

Options:

avmaint config balancemin=2 --avamaronly

avmaint config balancemin=0 --avamaronly

avmaint config balancemin=1 --avamaronly

avmaint config balancemin=100 –avamaronly

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Questions 9

What is a characteristic of an Dell Avamar NDMP backup?

Options:

After the first Level 0 backup, Level 1 backups are performed and merged to a full backup

Every backup is a Level 0 backup

Level 1 backups are performed daily and merged to a full backup at the end of the week

Each backup is a Level 1 backup and is merged to a full backup only when a restore request is received

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Questions 10

What are three types of Dell Avamar hashes?

Options:

Composite, Root, and Atomic

Root, Atomic, and Index

Composite, Atomic, and Stripe

Root, Atomic, and Parity

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Questions 11

Which type of database does Dell Avamar use to store information about backups?

Options:

PostgreSQL

Oracle

MySQL

SQL

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Questions 12

Which factor has the most impact on checkpoint overhead for an Dell Avamar server?

Options:

System daily change rate

Retention policy of the clients

O/S platform of the clients

Number of groups configured

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Questions 13

The Dell 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?

Options:

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Questions 14

A company has 50 clients backing up to an Dell 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?

Options:

Avamar client software installation

Avamar Windows Client Options menu

Avamar Administrator Policy window

Windows File System plug-in

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Questions 15

A customer is unable to connect to their Dell Avamar server when using the Avamar Administrator GUI. If default settings are being used, which port must be open for a successful connection?

Options:

5555

7778

8443

8080

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Questions 16

A multi-node Dell Avamar server is backing up clients worldwide. What must the storage administrator keep in mind to help ensure that backup schedules do not conflict with the Avamar server blackout window?

Options:

Time basis for a backup schedule is the local time of the Avamar Administrator session

Time basis for clients is the local time where the Avamar server utility node resides

Time basis for the GSAN is the local time zone where the server resides

Time basis for the maintenance schedules is GMT/UTC

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Questions 17

What is the recommendation for configuring the virtual disks for Dell Avamar Virtual Edition?

Options:

Thick provisioned with eager zeroed

Thin provisioned with eager zeroed

Thick provisioned with lazy zeroed

Thin provisioned with lazy zeroed

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Questions 18

How much RAM is required for an Dell Avamar Gen4 utility node?

Options:

4 GB

8 GB

12 GB

24 GB

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Questions 19

An Dell Test Lab manager has asked you to implement Avamar 6 on their Dell Avamar Data Store (ADS) Gen3 that is currently running Avamar 4.0.

Can this Avamar ADS Gen3 server be made to run Avamar 6?

Options:

Yes. Upgrade Avamar 4.0 to 4.1 and then upgrade from 4.1 to 6.0.

No. Avamar 6 cannot be installed or upgraded on Avamar ADS Gen3 servers.

Yes. Re-kickstart the Gen3 nodes with RHEL OS and perform a new install of Avamar 6.

Yes. Re-kickstart the Gen3 nodes with SLES OS and perform a new install of Avamar 6.

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Questions 20

The Dell Avamar Procedure Generator expires on a periodic basis, requiring connecting to the Dell network for an update. How often does this happen?

Options:

Every four days

Every week

Every two weeks

Every four weeks

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Questions 21

What is the last step in the hardware installation portion of an Dell Avamar multi-node deployment?

Options:

Connecting to the customer network

Cabling the nodes to the switch

Powering on the nodes

Configuring the internal switches

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Questions 22

Due to a scheduling conflict, an Dell Avamar administrator had to cancel the backup of a client using the Avamar Administration GUI. What happens to the backup data that had already been sent to the Avamar server?

Options:

Data is retained for seven days as a partial backup

Chunks from the incomplete backup will be removed at the next garbage collection

Data is retained for the remainder of the retention policy that was used for the backup

Data is tagged "corrupted" and will be marked recoverable at the next HFS check

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Questions 23

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

Options:

Ctrl-h

Ctrl-b

Backspace

Ctrl-c

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Questions 24

In which directory are the Avamar data server log files located in a multi-node Avamar server?

Options:

/data01/cur on each storage node

/sysinfo/log on the utility node

/data01/cur on the utility node

/var/log on each storage node

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Questions 25

What happens when a new storage node is deployed in the event of a storage node failure?

Options:

A spare storage node must be deployed manually

A spare storage node will be deployed automatically

The utility node is automatically promoted to a storage node

The utility node needs to be deployed manually

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Questions 26

By default, which process runs on the Dell Avamar utility node?

Options:

GSAN

MCS

avscc

SNMP

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Questions 27

You are configuring standard replication for a source Dell Avamar system, Avamar1, under the clients domain. The configuration is successful, and the client inquires about where the replicated clients appear on the target Avamar system.

Which domain contains the source clients on the target system?

Options:

/REPLICATE/Avamar1

/REPLICATE/Avamar1/clients

/root/clients

/clients/Avamar1

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Questions 28

An Dell 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?

Options:

No. All nodes in a Gen4 server must be Gen4 running SLES OS.

Yes. The two nodes running RHEL can be re-kickstarted with SLES OS.

Yes. The three nodes running SLES can be re-kickstarted with RHEL OS.

No. All nodes in a Gen4 server must be Gen4 running RHEL OS.

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Questions 29

What are the Dell Avamar daily activities that run during the maintenance window?

Options:

Checkpoint and HFS check

Garbage collection and HFS check

HFS check and Rollback

Checkpoint and Rollback

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Questions 30

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

Options:

avmaint suspend

dpnctl stop mcs

avmaint kill SESSION-ID

dpnctl stop ems

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Questions 31

An organization is looking for Dell 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?

Options:

0.5 TB

1.0 TB

2.0 TB

4.0 TB

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Questions 32

A Microsoft Windows user is about to start an on-demand backup using avtar when the utility node fails on their multi-node Dell Avamar server.

What must be done to ensure the backup will run and complete successfully?

Options:

The utility node must be replaced and the configuration restored prior to starting the backup

The spare node must be converted to a utility node and the configuration restored to the utility node

The client must be activated temporarily to the first storage node and then the backup can be run

Nothing. Backup is performed from the client to the storage nodes directly

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Answer:

Explanation:

Explanation/Reference:

D:\Documents and Settings\useralbo\Desktop\1.jpg

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. Dell 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.

Please stop back by later, I plan to talk about the NDMP Accelerator and it’s role in the Avamar System.

Questions 33

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

Options:

root, admin, and dpn

root, MCUser, and repluser

admin, MCUser, and repluser

root, dpn, and MCUser

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Questions 34

Garbage collection is running on an Dell Avamar server. Which activities can be performed at this time?

Options:

Restore, browse existing backups, and queue backups

Delete backups and change retention settings

Change retention settings, and modify clients and domains

Restore, delete backups, and add new clients

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Questions 35

Based on the configuration represented in the exhibit, which type(s) of Dell Avamar replication can be used?

Options:

Normal

Full copy

Root-to-root

Normal and root-to-root

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Questions 36

A storage administrator wants to determine if the Dell Avamar server is running in steady state.

Which command/script must be run?

Options:

capacity.sh

status.dpn

dpnctl status

healthcheck.pl

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Questions 37

Prior to starting an Dell Avamar node add and rebalance procedure, what should be done first to ensure that the activity can be completed without data loss?

Options:

Perform a full system pre-upgrade health check

Perform an orderly reboot of all nodes in the grid

Run 'asktime' to ensure all node clocks are synchronized

Add the new node names and IPs to the /etc/hosts file

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Questions 38

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

Options:

2 GB

4 GB

6 GB

8 GB

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Questions 48

Which size Avamar Gen4 node has 100 GBs of SSD storage?

Options:

1.3 TB

2.6 TB

3.9 TB

7.8 TB

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Questions 49

You are configuring backups for Desktop/Laptop clients. According to best practices, what should you do to ensure that all Windows clients will have successful backups?

Options:

Create a prescript that will initiate a VSS snapshot of the client

Enable overtime so that backups can start outside their normal time

Use the #USERDOCS# flag when creating the dataset

Create a separate dataset and group for clients with Windows XP or earlier

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Questions 50

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

Options:

10 GB per hour per node

10 GB per hour per grid

100 GB per hour per node

100 GB per hour per grid

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Questions 51

What is used to transfer configuration files to the Dell Avamar switch?

Options:

TFTP

SFTP

FTP

SCP

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Questions 52

When accessing the utility node using a bash shell (putty) session as `admin', you receive a message referencing a possible Man-In-The-Middle attack stating:

"REMOTE HOST IDENTIFICATION HAS CHANGED!"

How do you repair this condition?

Options:

Remove the IP address in question from /home/admin/.ssh/known_hosts

Remove the IP address in question from /root/.ssh/known_hosts

Remove "admin" from /etc/passwd on the utility node

Remove "admin_key" key from /home/admin/.ssh

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Questions 53

An Dell Avamar storage administrator has 400 Microsoft Windows clients; 350 are production and 50 are development. The administrator wants to replicate only the production servers.

If Enterprise Manager is used to only include the production servers, what will be replicated?

Options:

Clients

Clients and MC_Backups

Clients, MC_Backups, and EM_Backups

Clients, MC_Backups, EM_Backups, and checkpoints

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Questions 54

During a backup, which Dell Avamar server process communicates with the avtar process on the client?

Options:

EMS

MCS

GSAN

avagent

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Answer:

Explanation:

Explanation/Reference:

D:\Documents and Settings\useralbo\Desktop\1.jpg

Avamar Node Types and Processes

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.

http://whughgriffin.wordpress.com/2009/06/03/avamar-system-overview/

Questions 55

A Microsoft Windows user is about to initiate an on-demand backup from the client interface when the utility node fails on their multi-node Dell Avamar grid. What must be done prior to initiating the backup to ensure the backup will complete successfully?

Options:

Nothing. Backups are performed from the client to the storage nodes directly.

The utility node must be replaced and the configuration restored prior to starting the backup.

The spare node must be converted to a utility node and the configuration restored to it prior to starting the backup.

The client must be activated temporarily to the first storage node and then the backup can continue.

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Questions 56

What is the maximum number of 1.0 TB Dell AVE servers that can be installed on a single ESX server?

Options:

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Questions 57

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

Options:

C:\Program Files\avs\var

C:\Program Files\avs\var\clientlogs

C:\Program Files\avs\etc

C:\Program Files\avs\bin

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Questions 58

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?

Options:

RAIN

RAID

Checkpoint

Replication

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Questions 59

What is the minimum physical memory that needs to be allocated to an Dell Avamar Virtual Edition with 1.0 TB of licensable capacity?

Options:

2048 MB

3072 MB

4096 MB

16384 MB

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Questions 60

An Dell Project Manager asks you to provide a deliverable that documents all details of an Dell Avamar server implementation. Which deliverable is used?

Options:

TS-Kit Configuration Guide

TS-Kit Test Plan

SVC Qualifier

Statement of Work

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Questions 61

What is a characteristic of variable block deduplication?

Options:

Better granularity and more efficiency

Commonly provided in snapshot technologies

Small changes require all segments to change

Most common deduplication method

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Questions 62

According to Dell Avamar best practices, what is the maximum ratio of database data to file system data that should exist in an Avamar backup environment?

Options:

10:90

20:80

30:70

50:50

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Questions 63

An Dell Avamar server is configured to use the default settings. What is the maximum allowable O/S capacity utilization after which HFS checks will not run?

Options:

65%

85%

90%

95%

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Questions 64

Which time zone is used on Dell Avamar nodes?

Options:

Local time on the utility node; GMT/UTC on the storage nodes

GMT/UTC on the utility node; local time on the storage nodes

All node types use the local time

All nodes use GMT/UTC time

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Questions 65

By default, what does the Avamar Email Home profile send?

Options:

Status of the daily integrity check

Avamar alerts once daily

Reports once daily

Avamar alerts as they occur

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Questions 66

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

Options:

17 backup jobs per storage node

17 backup jobs per storage node, plus 1 per Avamar server

18 backup jobs per storage node

18 backup jobs per storage node, minus 1 per Avamar server

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Questions 67

Which tool is used to move a client to a new domain in Dell Avamar 6.0?

Options:

Client Manager

Activation Manager

Enterprise Manager

Installation Manager

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Questions 68

A storage node in a multi-node Dell Avamar server has failed, and a full node replacement is being performed.

What is used to reconstruct the data on the replacement node?

Options:

RAID

RAIN

Replication

Checkpoint

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Questions 69

A node has failed on a multi-node Dell Avamar grid and is offline. The customer insists on running backups while the replacement is occurring.

What can you tell the customer about the impact of running backups during a node replacement procedure?

Options:

Replacement procedure will take significantly longer with backups running

Replacement procedure will be unaffected by running backups

Replacement procedure cannot continue while backups are running

Replacement procedure will take less time with backups running

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Questions 70

When a backup is initiated by the Dell Avamar client application, how is the retention determined?

Options:

End User On-Demand Retention policy

Retention policy of the default group

Retention policy of the clients group

Retention policy for the domain

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Exam Code: D-AV-DY-23

Exam Name: Dell Avamar Deploy 2023 Exam

Last Update: Dec 7, 2025

Questions: 235

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