NetApp NS0-155 Online Practice Questions and Exam Preparation

NetApp NS0-155 Online Questions & Answers

• Question 41:

  SnapMirror will automatically try to restart a transfer after ___________.

  A. an initial transfer is interrupted
  B. a manual update is interrupted
  C. a transfer interrupted by reboot
  D. a scheduled incremental update is interrupted
  D. a scheduled incremental update is interrupted

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  If a scheduled transfer fails (for example, due to network failure), SnapMirror automatically retries the transfer the next minute. http://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/onlinebk/GUID-511EAA86-069A-42E8- B62E- 3168C7F0A83D.html

• Question 42:

  NetApp recommends that Fibre Channel switches that have both disk and tape connected to them should have separate zones created for each.

  A. True
  B. False
  A. True

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  http://www.brocade.com/downloads/documents/white_papers/Zoning_Best_Practices_WP-00.pdf

  Separating the disk and tape devices into separate zones prevents disk RSCNs from impacting tape devices, which tend to be more sensitive to RSCNs. Best practice is to zone each initiator WWPN to each target WWPN individually.

• Question 43:

  Physical Reallocation of a SnapMirror source volume increases the amount of data to transfer for the next SnapMirror update.

  A. True
  B. False
  B. False

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  https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_reallocate.1.html Using the -p option may reduce the extra storage requirements in a flexible volume when reallocation is run on a volume with snapshots. It may also reduce the amount of data that needs to be transmitted by SnapMirror on its next update after reallocation is performed on a SnapMirror source volume.

• Question 44:

  To restore a qtree protected with SnapVault from the secondary storage system to the primary storage system, you can ______________. (Choose two.)

  A. restore to a non existing qtree with DOT 7. 2
  B. add the new qtree to the primary storage system with DOT 7.2
  C. overwrite the existing qtree on the primary storage system with DOT 7.3
  D. delete the existing qtree from the secondary storage system with DOT 7.3
  A. restore to a non existing qtree with DOT 7. 2
  C. overwrite the existing qtree on the primary storage system with DOT 7.3

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  https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DB31E1F4-60A8-4F34-A1C4- 8F79754E4DE2.html

  You use the snapvault restore command to restore a backed-up qtree saved to the secondary system. Starting with Data ONTAP 7.3, you can restore the data to an existing qtree on the primary system using baseline restore or incremental restore.

• Question 45:

  What does it signify if the disks are "not owned" in a FAS2020 system?

  A. The disks are mailbox disks.
  B. The disks are spare disks.
  C. The disks are data disks.
  D. The disks are not used.
  D. The disks are not used.

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  Disks must be assigned to an aggregate to be used as raid group members or spares. Unassigned disks are displayed as "not owned".

• Question 46:

  In a Fiber Channel configuration, the host's HBA is referred to as the ___________, and the storage system's HBA to as the _____________.

  A. Target, initiator
  B. Primary, secondary
  C. Initiator, target
  D. Secondary, primary
  C. Initiator, target

• Question 47:

  Which two modes support using SnapMirror over multiple network paths?

  A. Standalone
  B. Partner
  C. Multi
  D. Failover
  E. Give back
  C. Multi
  D. Failover

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  https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-75BD4540-A103-4E2B-8B0A- E6BBC0D3F43F.html

  http://backdrift.org/man/netapp/man5/na_snapmirror.conf.5.html

  Two multipath methods are supported:

  The multiplexing mode causes snapmirror to use both paths at the same time. If one should fail, it will switch to use the remaining path only and use both again should the failing path be repaired. Failover mode causes snapmirror to use the

  first path as the desired path and only use the second path should problems arise with the first path.

• Question 48:

  When using SnapRestore to restore a single LUN, the LUN must be ___________.

  A. exported and accessible
  B. mapped to a Windows server
  C. mounted on a host
  D. taken offline or unmapped
  D. taken offline or unmapped

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  https://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-577EDC41-FEA0-4987-8F04- 55E736962FD1.html

  Always unmount the LUN before you run the snap restore command on a volume containing the LUN or before you run a single file SnapRestore of the LUN. For a single file SnapRestore, you must also take the LUN offline.

• Question 49:

  How does the NetApp Remote Agent (RSA) connect to NetApp Support?

  A. NetApp Support initiates a non-secure connection to the RSA.
  B. NetApp Support initiates a secure connection to the RSA.
  C. The RSA initiates a secure connection to NetApp Support.
  D. The RSA initiates a non-secure connection to NetApp support.
  C. The RSA initiates a secure connection to NetApp Support.

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  https://library.netapp.com/ecm/ecm_download_file/ECMP1200040

  Remote Support Agent is the facility to provide NetApp Support Engineers with the ability to remotely trigger AutoSupport.

  Remote Support Agent uses HTTP or HTTPS to communicate with the storage controller to initiate commands and to collect files. It uses HTTPS to send system logs and core files from the Data ONTAP root volume to Remote Support Enterprise on the NetApp Support side. NetApp RSA is not related to the RSA public key encryption algorithm.

• Question 50:

  The two copies SyncMirror volume are called ____________, which are physical copies of the same file system and consist of one or more RAID groups.

  A. Snapshot copies
  B. Aggregates
  C. Plexes
  D. Volumes
  C. Plexes

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  https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-D4D7C7F0-9063-4099-B5CA- 8FEE619EEF1D.html

  SyncMirror is a feature of Data OnTap used to mirror data to two separate aggregates. It allows for real- time mirroring of data to matching aggregates physically connected to the same storage system. SyncMirror provides for synchronous

  mirroring of data, implemented at the RAID level. You can use SyncMirror to create aggregates that consist of two copies of the same WAFL file system. The two copies, known as plexes, are simultaneously updated. Therefore, the copies

  are always identical. The two plexes are directly connected to the same system.

  The following provides information about the activities of SyncMirror:

  SyncMirror can be used to mirror aggregates and traditional volumes. (A traditional volume is essentially an aggregate with a single volume that spans the entire aggregate.) SyncMirror cannot be used to mirror FlexVol volumes. However,

  FlexVol volumes can be mirrored as part of an aggregate.

  SyncMirror is different from synchronous SnapMirror.