EMC EMC Certification E20-591 Questions & Answers

• Question 141:

  A customer is using EMC NetWorker to back up already compressed files to a device with compression enabled. What is a possible impact?

  A. Files increase in size

  B. Generates more metadata

  C. Files are decompressed

  D. Files decrease in size

  Correct Answer: A

• Question 142:

  A host has a file system with files changing every day. Full backups are performed every Sunday. The backup window during weekdays is limited. Full file system recovery should be accomplished in the shortest amount of time. Which type of backup should be performed every weekday to meet these requirements?

  A. Raw

  B. Block level

  C. Differential

  D. Incremental

  Correct Answer: C

• Question 143:

  If Data Domain is a target for backups, which environment will yield the highest deduplication compression ratio?

  A. Hospital where compliance requires patient information (CAT scans, MRI, X-Rays) to be backed up and archived for 10 years

  B. Virtualized environment where OS images are stored in a SAN environment backed up and stored for up to 3-6 months

  C. Financial institution where compliance requires e-mails and documents are backed up and stored for up to 7 years

  D. Database environment where transaction logs are backed up daily and stored for 1 month

  Correct Answer: C

• Question 144:

  Due to a bottleneck on the LAN, a potential EMC customer is unable to meet their current SLA on backups. Which Avamar characteristic addresses the customer's issue?

  A. Backing up to locally-attached disk

  B. Prefetching the data

  C. Bandwidth throttling

  D. Transferring only unique, sub-file data

  Correct Answer: D

• Question 145:

  On an Avamar server using default settings, what is the maximum allowable operating system capacity utilization after which HFS check will not run?

  A. 65%

  B. 85%

  C. 90%

  D. 95%

  Correct Answer: C

  

• Question 146:

  You are backing up two different NAS servers, each with direct-attached tape drives. Backup Client X has 10 files of 100 MB each. Backup Client Y has 1,000 files of 1 MB each. What will happen under identical backup infrastructures?

  A. Clients X and Y will generate the same amount of backup catalog entries

  B. Clients X and Y will not increase the size of the catalog entries

  C. Client X will generate more backup catalog entries

  D. Client Y will generate more backup catalog entries

  Correct Answer: D

• Question 147:

  In an EMC NetWorker backup environment, where do the metadata and backup policies reside?

  A. Storage node

  B. Backup server

  C. Dedicated storage node

  D. Backup client

  Correct Answer: B

• Question 148:

  The backup window of a customer using tape as a target for the current backup solution has increased over the allowed time. The customer needs to reduce the backup window by adding an intermediary process to a faster device before going to tape. What is that process?

  A. Archiving

  B. Rotation

  C. Consolidation

  D. Staging

  Correct Answer: B

• Question 149:

  A customer's environment currently has a backup window that exceeds the replication window. Which Data Domain characteristic will solve this issue?

  A. Post-process deduplication

  B. Variable-length segment size

  C. Fix-length segment size

  D. Inline deduplication

  Correct Answer: B

• Question 150:

  Which technology is used in an EMC Disk Library to provide tolerance against a double drive failure?

  A. RAIN

  B. RAID 6

  C. Remote Copy

  D. Active Engine Failover

  Correct Answer: B