EMC DCS-IE DES-1423 Questions & Answers

• Question 31:

  What are the methods to join a node to an Isilon cluster?

  A. Configuration wizard, SSH connection, or CLI only

  B. Serial connection, Configuration wizard, or CLI only

  C. Front panel display, serial cable, or Configuration wizard only

  D. Front panel display, Configuration wizard, WebUI, or CLI only

  Correct Answer: D

• Question 32:

  Which command provides cluster statistics including protocol, disk input, and disk output?

  A. isi statistics client

  B. isi statistics system

  C. isi statistics drive

  D. isi statistics protocol

  Correct Answer: B

  Reference: https://www.dell.com/community/Isilon/isi-statistics-command-document/td-p/7101434

• Question 33:

  When using NIC aggregation, which configuration is supported in an Isilon Gen 5 environment?

  A. ext-1 and ext-2 of node 1 aggregated together

  B. ext-1 and 10gige-1 of node 1 aggregated together

  C. 10gige-1 port of node 1 and 10gige-1 of node 2 aggregated together

  D. ext-1 port of node 1 and ext-1 port of node 2 aggregated together

  Correct Answer: D

• Question 34:

  Which OneFS 8.0 feature can be added to an NFSv4 export to assist with seamless failover in the event of a disconnect?

  A. Transparent failover

  B. Stateless connection

  C. Stateful connection

  D. Continuous availability

  Correct Answer: C

  Reference: https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h17240_wp_isilon_onefs_nfs_design_considerations_bp.pdf (7)

• Question 35:

  An Isilon cluster has ten A200 nodes and the node pool data protection level is set to N+2. The data access pattern is currently set to streaming. If the data access pattern is changed to concurrency, how many stripes for a 1 MB file are moved to the other drive(s)?

  A. 0

  B. 2

  C. 4

  D. 6

  Correct Answer: B

• Question 36:

  On an Isilon cluster, what is a benefit of using SMB Server-Side Copy?

  A. A secondary copy of a file is written to a backup location to assist SyncIQ operations.

  B. A secondary copy of the user's file is created to allow multiple users to edit the file simultaneously.

  C. Allows the file to be copied from one location to another without having to go through the client.

  D. Allows members of the Administrator's group to manage snapshot copies of files.

  Correct Answer: C

  Reference: http://doc.isilon.com/onefs/8.1.1/help/en-us/ifs_c_smb_server_side_copy.html

• Question 37:

  A company has an Isilon cluster that is joined to an Active Directory (AD) domain. Previously, the company replaced their primary NTP server and added new NTP settings to the Isilon cluster. Now the users are experiencing authentication failures.

  What is a possible reason for this behavior?

  A. Cluster and the AD are configured to use the same NTP server.

  B. AD is not configured to synchronize its time from the cluster.

  C. SMB time is not configured on the cluster to synchronize with the AD.

  D. Time between the NTP and the AD differentiates by more than 5 minutes.

  Correct Answer: B

  Reference: https://www.dell.com/community/Isilon/NTP-and-Active-Directory/td-p/6954393

• Question 38:

  Which job checks for error correction codes?

  A. IntegrityScan

  B. Collect

  C. FlexProtect

  D. MediaScan

  Correct Answer: D

  Reference: https://community.emc.com/community/products/isilon/blog/2015/03/25/onefs-hardware-fault-tolerance

• Question 39:

  An administrator uses a TreeDelete job to delete a large directory. After the job starts, users notice an issue with performance on the cluster. Which recommended action will resolve the performance issue with the job?

  A. Modify the running job to use a high impact policy to reduce the amount of time users are impacted. Schedule the job after business hours in the future.

  B. Let the job continue to run at the current impact level and schedule future jobs for after business hours so they do not impact users.

  C. Modify the running job to use an OFF_HOURS policy that runs at low impact during business hours and medium impact after business hours.

  D. Pause the running job and resume after business hours using a high impact policy so that it does not impact users.

  Correct Answer: A

• Question 40:

  A user has recently left the company. After two weeks, the Isilon administrator receive a request to provide some files from the user's directory called \ifs\user\John_Doe\development. The administrator then discovers that the required files have been deleted, but a snapshot of the directory is available.

  After restoring the files from the snapshot, which additional step is necessary to access the files?

  A. Restored files need to be copied from the .snapshot directory to the .restore directory.

  B. Permissions of the restored files need to be changed.

  C. Restored files need to be copied from the .restore directory to the user directory.

  D. Permissions of the user directory need to be changed.

  Correct Answer: B

  Reference: https://community.emc.com/community/products/isilon/blog/2016/04/25/restoring-from-snapshots