EMC Implementation Engineer DES-1B21 Questions & Answers

• Question 11:

  When planning for a multi-site ECS installation, what is the maximum network latency between sites?

  A. 100 ms

  B. 500 ms

  C. 1,000 ms

  D. 5,000 ms

  Correct Answer: C

  Reference: https://www.emc.com/techpubs/ecs/ecs_plan_install-1.htm

• Question 12:

  An ECS is configured as backend storage for OpenStack Glance. Which type of data will it store?

  A. OpenStack Swift client access information

  B. Disk and server images

  C. Volume data backups

  D. Multimedia files

  Correct Answer: B

• Question 13:

  What is a correct statement concerning the use of ECS as an LTR solution with DD Cloud Tier?

  A. There can be up to four cloud units that make up the cloud tier

  B. Backups are cloned to the cloud tier via the app-based policy

  C. Mission critical applications are backed up first to the DD cloud tier

  D. Data is moved directly from the active tier to ECS

  Correct Answer: D

• Question 14:

  Which port needs to be opened between ECS and ESRS for registration of remote support?

  A. 21

  B. 3218

  C. 9020

  D. 9443

  Correct Answer: D

• Question 15:

  You are configuring an ECS system to be used for private cloud storage in a Data Domain Cloud Tier environment. You want to enable higher storage efficiency for archival data in the storage pool to support the backup solution.

  What is the recommended configuration?

  A. 8 nodes per storage pool Cold Storage enabled

  B. 4 nodes per storage pool Federated VDC

  C. 8 nodes per storage pool Dedicated namespace

  D. 4 nodes per storage pool Global replication group

  Correct Answer: C

• Question 16:

  A company has removed the VDC from the replication group and is no longer able to add it back. What is the cause of this issue?

  A. The same VDC cannot be added back to the replication group, it must be given another name

  B. The VDC cannot be added back to the existing replication group, a new replication group must be created for the VDC

  C. The same VDC can be added back to the replication group, but only before failover processing is completed successfully

  D. Removing the VDC from the replication group initiates failover processing for permanent failures

  Correct Answer: A

  Reference: https://www.emc.com/collateral/TechnicalDocument/docu59635.pdf

• Question 17:

  Which command is used to update the hare switch firmware?

  A. updateArista

  B. flashboot

  C. firmwaredownload

  D. update firmware

  Correct Answer: A

• Question 18:

  In the Storage Service Layer, which distributed shared service runs on each ECS node to manage transactions and ensure data is committed?

  A. Unstructured Storage Engine

  B. Server-side encryption

  C. Erasure coding

  D. ECS media-data management

  Correct Answer: A

• Question 19:

  Compliance monitoring has been enabled for an ECS system. Under which conditions will a BAD event be received?

  A. SUSPECT and UNKNOWN

  B. BAD and NOT READY

  C. DEGRADED and UNTRACKED

  D. UNKNOWN and NOT READY

  Correct Answer: A

  Reference: https://www.emc.com/collateral/TechnicalDocument/docu88138.pdf

• Question 20:

  An ECS storage administrator creates a bucket to be used by the NFS clients. The development team tries to write some objects using the S3 browser on the bucket. They call the storage administrator to inform them that they are experiencing write operation errors.

  What is a possible reason for the errors?

  A. Bucket is Read only

  B. Secret key used is not correct

  C. Object user needs write credentials

  D. Base URL was not configured

  Correct Answer: A