Dell EMC E20-585 Exam Practice Test Instant Access

Question 1

Which functionality is recommended by Dell EMC to be disabled on backup software when configuring Dell EMC Data Domain VTL?

AMultiplexing

BMultithreading

CParallelism

DTarget Session

Answer : A

Multiplexing, compression, and encryption of backup data were introduced to provide read parallelism as well as enhanced security and performance during backups. Backing up to a Data Domain system is inherently more secure than tape, and does not suffer performance degradation due to slow backup streams. Thus the recommendation is to disable any of these features when using a Data Domain system as the target for RMAN.

References:

https://community.emc.com/docs/DOC-35348

Question 2

A Dell EMC Data Domain user has 10 branch offices. Backup data is replicated to its primary location. For disaster recovery purposes, the primary location is replicated to an offsite location.

Which replication topology does this represent?

AOne-to-Many

BCascaded One-to-Many

CMany-to-One

DCascaded

Answer : C

DD Replicator supports five replication topologies (one-to-one, one-to-one bidirectional, one-to-many,many-to-one, and cascaded).

In many-to-one replication, whether with MTree or directory, replication data flows from several source DD systems to a single destination DD system. This type of replication can be used to provide data recovery protection forseveral branch offices on a corporate headquarter's IT system.

References:

Dell EMC Data Domain Operating System Version 6.1, Administration Guide, page 397

Question 3

Which types of replication are supported in a Dell EMC Data Domain system?

ACollection,Directory, MTree, Pool, and Asynchronous

BSynchronous, Collection, Directory, MTree, and Managed

CCollection, Directory, MTree, Pool, and Managed

DCollection, Directory, and MTree only

Answer : C

References:

https://www.emc.com/collateral/software/white-papers/h7082-data-domain-replicator-wp.pdf, page 5

Question 4

A delivery specialist wants to integrate a Dell EMC Data Domain appliance into their current backup environment using CIFS, NFS, DD Boost, and VTL. Which backup applications support these four protocols?

AQuest vRanger Veritas Backup Exec

BDell EMC Avamar and Dell EMC NetWorker

CVeritas NetBackup and Quest vRanger

DVeritas NetBackup and Dell EMC NetWorker

Answer : D

Networker

A Data Domain system can support mixed environments that may include DD Boost devices, VTLs, and CIFS or NFS AFTD disk configurations. The Data Domain system may require additional licenses for the DD Boost functionality.

For full compatibility with NetWorker, install the latest upgrade of the DD OS.

References:

https://www.emc.com/collateral/TechnicalDocument/docu48337.pdf

Question 5

When selecting a Dell EMC Data Domain model, what are standard practices to be conservative in calculating capacity and throughput?

ACapacity % = Required Capacity* 1000 / Maximum CapacityThroughput% = Required Throughput * 100 / Maximum ThroughputAllow for minimum10% buffer in both capacity and throughput

BCapacity % = Required Capacity* 1000 / Maximum CapacityThroughput% = Required Throughput * 100 / Maximum ThroughputAllow for minimum 20% buffer in both capacity and throughput

CCapacity % = RequiredCapacity* 100 / Maximum CapacityThroughput% = Required Throughput * 100 / Maximum ThroughputAllow for minimum 10% buffer in both capacity and throughput

DCapacity % = Required Capacity* 100 / Maximum CapacityThroughput% = Required Throughput * 100 / Maximum ThroughputAllow for minimum 20% buffer in both capacity and throughput

Answer : D

To get Capacity % and Througput% use a 100 multiplier, not a 1000 multiplier.

Factor 15-25% buffer capacity for capacity and throughput.

References:

https://www.slideshare.net/solarisyougood/emc-data-domain-advanced-features-and-functions, page 43

Question 6

An organization has Dell EMC Data Domain retention lock compliance enabled on an MTree. Due to malicious tampering of the system clock, the file system is disabled.

Which user role has the privilege required to enable the file system?

ABackup operator

BLimited admin

CSystem admin

DSecurity officer

Answer : C

An admin role user can configure and monitor the entire Data Domain system. Most configuration features and commands are available only to adminrole users.

Question 7

What is the maximum value of 'Mount Limit' for restore instances recommended by IBM Spectrum Protect for accessing an NFS share from Dell EMC Data Doman?

A1024

B2048

C4096

D8192

Answer : C

The default Mount Limit value is 20 and the maximum value for this parameter is 4096. This means that up to 4096 individual files can be opened at a single time.

References:

IBM Spectrum Protect for Linux Version 8.1.2, Administrator's Reference, page 231

Dell EMC E20-585 Data Domain Specialist Exam for Systems Administrator Exam Practice Test