Deck 10: Backup Recovery - Avamar Specialist for Storage Administrators

Question 1

A storage administrator is planning to back up virtual machines residing on an ESX 4.0 server using EMC Avamar and VMware vSphere. What is a characteristic of this type of backup?

A) Image proxy is located on a virtual machine
B) Avamar Interoperability Module must be installed
C) All virtual machines must be powered on
D) All virtual machines must be running Microsoft Windows 2003

Answer 1

Image proxy is located on a virtual machine

Question 2

When the Avamar "getlogs" script is executed, where is the output stored?

A) tar file in the current directory on the utility node
B) root directory on each storage node
C) tmp directory on the storage node
D) tar file in the current directory on each storage node

Answer 2

tar file in the current directory on the utility node

Question 3

An EMC Avamar storage administrator is creating a single dataset for all Microsoft Windows XP and Windows Vista desktop/laptop (DTLT) clients. In the source data, the administrator includes C: \ Documents and Settings and C: \ Users. Which flag needs to be added to prevent the "Path not found" error?

A) #USERDOCS#
B) #FLAGFILEPATH#
C) #IGNORECONFIG#
D) #VARDIRFLAG#

Answer 3

#USERDOCS#

Question 4

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

Question 5

In EMC Avamar, what is the default duration of the backup window?

A) 6 hours
B) 8 hours
C) 10 hours
D) 12 hours

Question 6

Which EMC Avamar Administration Console window is used to adjust the time when the server runs garbage collection?

A) Tools => Manage Schedules
B) Administration => Event Management
C) Policy => Policy Management
D) Administration => Services Administration

Question 7

A multi-node EMC 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?

A) Time basis for a backup schedule is the local time of the Avamar Administrator session
B) Time basis for clients is the local time where the Avamar server utility node resides
C) Time basis for the GSAN is the local time zone where the server resides
D) Time basis for the maintenance schedules is GMT/UTC

Question 8

A company recently deployed an EMC Avamar Gen4 server with Avamar 6.0 software to protect their data. The backup administrator wants system state protection for their critical Microsoft Windows 2003 servers. What is the recommended method?

A) HomeBase embedded feature
B) Windows Server Backup
C) NTBackup option
D) HomeBase embedded with HomeBase server

Question 9

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

A) System daily change rate
B) Retention policy of the clients
C) O/S platform of the clients
D) Number of groups configured

Question 10

Based on EMC best practices, what is recommended when creating Avamar schedules?

A) Use a single schedule where possible
B) Use a different schedule for each group
C) Use multiple schedules to ensure backup jobs do not overlap
D) Use a separate schedule for each client

Question 11

A company has just deployed a VMware environment. The EMC Avamar storage administrator wants to ensure they receive the highest level of deduplication within the environment for backups. Which type of backup should be performed?

A) Guest
B) ESX console
C) VCB
D) vSphere Image

Question 12

What is the recommended replication method for moving all data and clients from a single node to a multi-node EMC Avamar server?

A) Root-to-root replication
B) Root-to-REPLICATE replication
C) Selective replication
D) MCS/SQL Dump Export/Import

Question 13

A company using EMC Avamar wants to delete a backup from their grid during the end of the maintenance window. However, they are not able to delete it. What may prevent the backup from being deleted?

A) Garbage collection has been manually started
B) Maintenance activities have been suspended
C) Backups are running on the client
D) O/S capacity utilization exceeds 80%

Question 14

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

A) Checkpoint and HFS check
B) Garbage collection and HFS check
C) HFS check and Rollback
D) Checkpoint and Rollback

Question 15

A storage administrator is troubleshooting an EMC Avamar client that is failing with "Time Out - Start". Which log is the first place to check?

A) avagent.log
B) avtar.log
C) gsan.log
D) err.log

Question 16

Which type of data can be restored by a user with EMC Avamar Desktop/Laptop (DTLT)?

A) Only data owned by the user
B) Any data backed up from the client
C) All data stored on the Avamar server
D) All data belonging to clients in the same Avamar domain

Question 17

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

Question 18

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

A) Restore, browse existing backups, and queue backups
B) Delete backups and change retention settings
C) Change retention settings, and modify clients and domains
D) Restore, delete backups, and add new clients

Question 19

On an EMC Avamar server, the maintenance schedule is enabled. If the server is over a certain capacity, when will the server automatically cancel backups that are running under the default configuration?

A) At the start of the blackout window
B) At the start of the maintenance window
C) After the first checkpoint in the blackout window
D) After the backup has fully completed

Question 20

Which factor(s) impacts the EMC Avamar checkpoint overhead?

A) System daily change rate
B) Frequency of client backups
C) Whether backups succeed everyday
D) Size of the grid and licensed amount

Question 21

A node has failed on a multi-node EMC 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?

A) Replacement procedure will take significantly longer with backups running
B) Replacement procedure will be unaffected by running backups
C) Replacement procedure cannot continue while backups are running
D) Replacement procedure will take less time with backups running

Question 22

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

A) TS-Kit Configuration Guide
B) TS-Kit Test Plan
C) SVC Qualifier
D) Statement of Work

Question 23

Which command is used to convert new Avamar nodes to storage nodes?

A) change_nodetype
B) avmaint
C) avmgr
D) dpnctl

Question 24

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

Question 25

An EMC Avamar backup administrator is logged in as root. The administrator is running a mapall date command to all nodes, all of which respond with a password prompt. Which SSH keys need to be loaded?

A) dpnid account
B) MCUser account
C) root account
D) customer's account

Question 26

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

Question 27

For an Avamar Gen4 single node, how many Ethernet ports are provided?

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

Question 28

Your readiness checks show that a customer's Gen4 Avamar server has entered a read-only status. To avoid data loss, which recommended state should the Avamar server be in before you can continue the "Add Node" procedure?

A) Known good controlled state
B) Read-only state
C) Steady state
D) Suspended state

Question 29

You are adding new nodes to an EMC Avamar server. You are now ready to join the new nodes to the GSAN. Which command is used?

A) start.nodes
B) start.dpn
C) rebuild.nodes
D) avmaint autorestart

Question 30

When using LDAP for Active Directory to access the Avamar Administrator, where are the user passwords maintained?

A) Customer Active Directory Server
B) Utility node /usr/local/avamar/etc
C) Utility node O/S /etc/passwd file
D) SSH known_hosts file on the utility node

Question 31

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

A) avmaint suspend
B) dpnctl stop mcs
C) avmaint kill SESSION-ID
D) dpnctl stop ems

Question 32

What is an EMC Avamar best practice when performing an Microsoft Exchange 2003 Message Level restore of an individual message?

A) Restore to a temporary dedicated folder
B) Restore to the same folder
C) Restore to another Exchange database
D) Restore to a new temporary Exchange database

Question 33

A customer is running out of capacity on their Avamar Gen4 server with 3.9 TB nodes. They want to add three Gen4 1.3 TB nodes from their test lab. Can these 1.3 TB nodes be repurposed for node additions in this environment?

A) No. All new nodes must be of the same capacity as the existing nodes.
B) Yes. Three 1.3 TB nodes add up to 3.9 TB and can be added to the Gen4 server with 3.9 TB nodes.
C) Yes, if an approved RPQ is available for the customer.
D) No. Gen4 1.3 TB nodes cannot be added to a Gen4 1.3 TB multi-node server.

Question 34

If 9 GB is the average amount of data added to an Avamar Virtual Edition (AVE) in a mixed environment each day, what is the minimum recommended size of the AVE?

A) 0.5 TB
B) 1.0 TB
C) 2.0 TB
D) 3.3 TB

Question 35

Based on EMC best practice, what is recommended when creating Avamar domains?

A) A minimal number of domains
B) A domain for every client
C) A domain for each file system
D) A sub-domain for each hardware platform

Question 36

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

A) Perform a full system pre-upgrade health check
B) Perform an orderly reboot of all nodes in the grid
C) Run 'asktime' to ensure all node clocks are synchronized
D) Add the new node names and IPs to the /etc/hosts file

Question 37

What are the requirements for the virtual processor(s) dedicated to EMC Avamar Virtual Edition at all times?

A) One 2 GHz virtual processor
B) One 4 GHz virtual processor
C) Two 2 GHz virtual processors
D) Two 3 GHz virtual processors

Question 38

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

Question 39

A customer has received an Avamar Gen4 Data Store. They want the software version on the new system to match their existing Avamar 5.0 system. What do you tell the customer?

A) New system must run a minimum level of Avamar version 6.0 to support Gen4
B) New system can be downgraded to Avamar version 5.0
C) New system runs Avamar versions 5 and 6 natively to support existing systems
D) New system can have VMware added to it to support older Avamar versions

Question 40

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

A) Thick provisioned with eager zeroed
B) Thin provisioned with eager zeroed
C) Thick provisioned with lazy zeroed
D) Thin provisioned with lazy zeroed

Question 41

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

Question 42

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

Question 43

A storage administrator is troubleshooting an EMC Avamar client that is failing with "Time Out - Start". Which log is the first place to check?

A) avagent.log
B) err.log
C) avtar.log
D) gsan.log

Question 44

Starting at the bottom, what is the recommended order for racking components in a Gen4 EMC Avamar Data Store rack without premium support?

A) Utility, spare, storage, switches
B) Switches, utility, storage, spare
C) Switch A, utility, spare, storage, Switch B
D) Switch A, spare, storage, utility, Switch B

Question 45

A Microsoft Windows user is about to start an on-demand backup using avtar when the utility node fails on their multi-node EMC Avamar server. What must be done to ensure the backup will run and complete successfully?

A) The utility node must be replaced and the configuration restored prior to starting the backup
B) The spare node must be converted to a utility node and the configuration restored to the utility node
C) The client must be activated temporarily to the first storage node and then the backup can be run
D) Nothing. Backup is performed from the client to the storage nodes directly

Question 46

A customer has three remote sites that contain large NAS mounted file systems. They would like to back up to their centrally located EMC Avamar server. What is the recommended method for performing these backups?

A) Install NDMP accelerator nodes in each remote site, backing up to the centrally located Avamar grid over the WAN
B) Install an NDMP accelerator node at the central site for all remote site NDMP backups through the WAN links
C) Install Avamar client software on the NAS devices in each remote site, backing up to the centrally located Avamar grid over the WAN
D) Install Avamar client software on servers which have the file systems mounted and schedule the jobs through the Administrative Console GUI

Question 47

In steady state, what is the approximate rate of data removed from an EMC 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

Question 48

What is the smallest supported RAIN configuration for EMC Avamar?

A) 1 utility node, 0 spare nodes, 3 storage nodes
B) 1 utility node, 0 spare nodes, 1 storage node
C) 1 utility node, 1 spare node, 4 storage nodes
D) 1 utility node, 1 spare node, 2 storage nodes

Question 49

In an Avamar configuration, what can be backed up to an EMC Data Domain device?

A) Microsoft Exchange VSS and Oracle
B) NDMP and Microsoft Exchange
C) Informix and Oracle
D) Microsoft SQL Server and File System Data

Question 50

When configuring basic networking for the storage nodes in a multi-node EMC Gen4 Avamar, which port is used to perform this operation?

A) iDRAC
B) GB1
C) GB3
D) GB4

Question 51

A company has decided to deploy the EMC Avamar software to guest machines in a VMware environment. What is the difference between backing up a guest machine versus a physical machine?

A) No difference
B) Image level recovery only
C) Avamar cannot replicate the backup of the guest machine
D) Deduplication is not as efficient

Question 52

What is the maximum number and types of nodes for an EMC Avamar multi-node server?

A) 7 storage, 1 utility, and 1 spare
B) 15 storage, 1 utility, 1 accelerator, and 1 spare
C) 16 storage, 1 utility, and 1 spare
D) 18 storage, 1 utility, and 1 spare

Question 53

A customer has a remote client with over 4 TB of file data that needs to be backed up to a local Avamar server. What is a best practice to perform the initialization?

A) Wait for any other backups to complete, then start the backup of the remote site
B) Start the initial backup and allow overtime on the server
C) Start the initial backup of remote client across the LAN
D) Start with a subset of data and gradually keep increasing the data per backup

Question 54

What are characteristics of a single node server with integrated Data Domain?

A) Non-RAIN; requires replication if Avamar Checkpoint data is backed up on Data Domain
B) Non-RAIN; does not require replication if Avamar Checkpoint data is backed up on Data Domain
C) RAIN; does not require replication if Avamar Checkpoint data is backed up on Data Domain
D) RAIN; requires replication if Avamar Checkpoint data is backed up on Data Domain

Question 55

You are configuring standard replication for a source EMC 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?

A) /REPLICATE/Avamar1
B) /REPLICATE/Avamar1/clients
C) /root/clients
D) /clients/Avamar1

Question 56

A storage node in a multi-node EMC Avamar server has failed, and a full node replacement is being performed. What is used to reconstruct the data on the replacement node?

A) RAID
B) RAIN
C) Replication
D) Checkpoint

Question 57

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

Question 58

When data is being backed up to an EMC Data Domain system in an Avamar environment, where is the backup metadata stored?

A) On the Avamar grid
B) On the Data Domain
C) On the backup client
D) On both Avamar and Data Domain

Question 59

Which role is used to perform and monitor restores?

A) Activity Operator
B) Backup/Restore User
C) Restore Only Operator
D) Restore Only User

Question 60

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

A) EMS
B) MCS
C) GSAN
D) avagent

Question 61

Which process divides the data into chunks for EMC Avamar deduplication data flow processing?

A) Compression
B) Hash cache checking
C) SHA-1 Hashing
D) Sticky-byte factoring

Question 62

What happens when a domain containing clients is deleted?

A) Clients are automatically retired; their backups are maintained
B) Clients are deleted; their backups are maintained
C) Clients and their backups are moved to the MC_SYSTEM domain
D) Clients are deleted; their backups are deleted

Question 63

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