EMC E20-385 Online Practice Questions and Exam Preparation

EMC E20-385 Online Questions & Answers

• Question 161:

  A customer is deploying EMC Data Domain systems in multiple sites to replace their existing tape backup infrastructure. Which feature will allow the customer to copy their data between the systems at multiple sites?

  A. Replication
  B. Snapshot
  C. Fastcopy
  D. Retention Lock
  A. Replication

• Question 162:

  On an EMC Data Domain system with Extended Retention, when is cleaning performed on the Active Tier?

  A. As scheduled or immediately after data movement
  B. As scheduled before the cleaning of the Retention Tier
  C. As scheduled in the backup application
  D. As scheduled together with the data in the Retention Tier
  A. As scheduled or immediately after data movement

• Question 163:

  Which variable length segment size range is used for EMC Data Domain deduplication?

  A. 2 - 8 KB
  B. 4 - 12 KB
  C. 6 - 16 KB
  D. 8 - 18 KB
  B. 4 - 12 KB

• Question 164:

  When creating virtual tapes on an EMC Data Domain system by specifying "L3" in the suffix of the virtual media barcode, which tape size will be created?

  A. 10 GB
  B. 50 GB
  C. 100 GB
  D. 400 GB
  D. 400 GB

• Question 165:

  While implementing an EMC Data Domain system, the system is unable to join the Microsoft Active Directory domain. What is preventing the system from joining the domain?

  A. System time varies from AD server time by 310 seconds
  B. Backup user does not have operator privileges
  C. Unstable Fibre Channel connectivity to the AD server
  D. Kerberos tickets are 210 seconds old and stale
  A. System time varies from AD server time by 310 seconds

• Question 166:

  What is the current NAA type in the WWN format used within EMC Data Domain OS 5.4?

  A. 1
  B. 2
  C. 5
  D. 6
  C. 5

• Question 167:

  Refer to the Exhibit.

  

  Between February 27th and March 4th, what is the highest compression factor reached (approximately) on the EMC Data Domain system?

  A. 7
  B. 9.7
  C. 160
  D. 230
  C. 160

• Question 168:

  A customer has EMC Data Domain system installed in their data center for two weeks. The environment consists of the following.

  1.

  Data Domain is configured as the primary backup device being shared by Avamar, NetBackup, Oracle RMAN, and SQL Server backup clients

  2.

  Avamar and NetBackup are using DD Boost to backup a total of 500 clients (250 each)

  3.

  Avamar is configured to allow a maximum of 100 concurrent backups

  4.

  NetBackup is configured to allow 150 concurrent backups writing to the Data Domain with the backup window starting at 8 P.M. nightly

  A total of 50 production Oracle servers are using NFS and 50 production SQL servers are using CIFS, each performing full backups nightly between 11 P.M. and 5 A.M. The archive and transaction logs backs up every 15 minutes. The

  retention for all client backups is 30 days.

  The backup administrators notice that between 8 P.M. and 11 P.M. every night, the Data Domain CPU is at 100% utilization.

  What is a potential reason for the high CPU utilization?

  A. Maximum streams threshold has been exceeded on the Data Domain
  B. Snapshots are scheduled during the backup window
  C. Network throughput is being over utilized
  D. Data Domain default cleaning schedule is running during the backup window
  A. Maximum streams threshold has been exceeded on the Data Domain

• Question 169:

  What is a benefit of snapshots on an EMC Data Domain system?

  A. Provides data restoration from a specific point in time for deleted data
  B. Requires no disk space to store
  C. Included with the replication license
  D. Provides NDMP backups to a remote site
  D. Provides NDMP backups to a remote site

• Question 170:

  In an EMC Data Domain system, which local compression algorithm is used by default?

  A. gzfast
  B. gzip
  C. zip
  D. lz
  D. lz