EMC EMC Certification E20-591 Questions & Answers

• Question 21:

  What describes the cleaning process on an EMC Data Domain system?

  A. Reclaims physical storage occupied by deleted objects

  B. Defragments the Data Domain file system

  C. Writes zero's to the deleted data blocks

  D. Shreds all data on the Data Domain file system

  Correct Answer: A

• Question 22:

  An EMC Data Domain system is configured for encryption of data-at-rest. What happens when replication of this data starts, if encryption for data-in-flight is also configured?

  A. Encrypted data is encrypted a second time

  B. Data will be decrypted at the source, encrypted for replication, and then encrypted at the target

  C. Data-in-flight encryption option is ignored

  D. Replication job fails

  Correct Answer: A

• Question 23:

  Which additional feature does the EMC Data Domain Global Deduplication Array provide when compared to other Data Domain systems?

  A. Higher capacity

  B. Clustering

  C. Replication

  D. Encryption

  Correct Answer: A

• Question 24:

  In an EMC Data Domain Archiver system, what is a characteristic of a sealed archive unit?

  A. Files can be deleted but no new data can be written to the sealed unit

  B. A sealed archive unit is marked as read-only; writes and file deletions are not permitted

  C. Unit needs to be manually put into an online mode if recovery of data is necessary

  D. Data in the sealed unit is not replicated for security reasons

  Correct Answer: A

• Question 25:

  When writing to an EMC Data Domain device with DD Boost and Distributed Segment Processing, which functions are performed by an EMC NetWorker storage node?

  A. Segmentation, fingerprinting, and compression

  B. Fingerprinting, filtering, and segmentation

  C. Filtering, compression, and writing

  D. Writing, compression, and fingerprinting

  Correct Answer: A

• Question 26:

  In an EMC Data Domain Archiver system, what is a characteristic of a sealed archive unit?

  A. Data from the archive unit can be recovered even if the other units in the same system are lost

  B. A sealed archive unit is marked as read-only; writes and file deletions are not permitted

  C. Unit needs to be manually put into an online mode if recovery of data is necessary

  D. Data in the sealed unit is not replicated for security reasons

  Correct Answer: A

• Question 27:

  What is an advantage of using MTrees in an EMC Data Domain system?

  A. Allows for management of compression rates separately

  B. Increases the deduplication ratio within the system

  C. Improves replication performance

  D. Segregates management and replication traffic

  Correct Answer: A

• Question 28:

  How many replication contexts are configured in the EMC Data Domain environment represented in the exhibit?

  

  A. 1

  B. 2

  C. 3

  D. 4

  Correct Answer: C

• Question 29:

  How many replication contexts are configured in the EMC Data Domain environment represented in the exhibit?

  

  A. 1

  B. 2

  C. 3

  D. 4

  Correct Answer: D

• Question 30:

  A customer has a Symantec NetBackup environment at two locations, each with EMC Data Domain as the target for backups. They are replicating data between the two sites.

  The customer now requires that the Media/Master server is aware of both Data Domain systems for restoring files. Which feature meets this requirement?

  A. DD Boost

  B. Pool Replication

  C. Directory Replication

  D. SISL

  Correct Answer: A