NetApp NS0-155 Online Practice Questions and Exam Preparation

NetApp NS0-155 Online Questions & Answers

• Question 171:

  Which iSCSI security method encrypts data between the initiator and the target?

  A. IPSec
  B. CHAP
  C. LUN masking
  D. Header and Data Digests
  A. IPSec

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  IPSec is an encryption transport that can be used to secure any IP traffic including iSCSI.

• Question 172:

  Which three are pre-requisites for using SnapRestore? (Choose three.)

  A. The volume to be reverted must be offline.
  B. The volume to be reverted must not be a SnapMirror destination.
  C. You must enter the SnapRestore license code before you can use it.
  D. Snapshot copies must exist on the storage system so that you can select a snapshot for the reversion.
  B. The volume to be reverted must not be a SnapMirror destination.
  C. You must enter the SnapRestore license code before you can use it.
  D. Snapshot copies must exist on the storage system so that you can select a snapshot for the reversion.

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  You must meet certain prerequisites before using SnapRestore:

  -SnapRestore must be licensed on your storage system.

  - There must be at least one Snapshot copy on the system that you can select to revert.

  -The volume to be reverted must be online.

  - The volume to be reverted must not be in use for data replication. http://hd.kvsconsulting.us/ netappdoc/733docs/html/ontap/onlinebk/GUID-A14081A3-9270-47EE- A1C1-EC52D3ABDBD0.html

• Question 173:

  What happens when two aggregates are rejoined?

  A. It is not possible to rejoin aggregates.
  B. Data ONTAP will always retain data from the newest aggregate.
  C. Both aggregates revert to the last common snapshot before the split.
  D. You will have a large new aggregate containing all volumes from both aggregates.
  E. One of the aggregates will be overwritten and you will lose any data changed on it after the split.
  E. One of the aggregates will be overwritten and you will lose any data changed on it after the split.

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  When you rejoin split aggregates, Data ONTAP mirrors the data from one aggregate to the other and destroys data that existed on that aggregate before the rejoin. https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-B9CB3DA8E1AF-4BAC-A85B- 64C009010F4A.html

• Question 174:

  How can you "throttle" SnapValue updates and baseline transfers so that the primary or secondary is not transmitting data as it can?

  A. Use the -k option in the snapvault start or snapshot modify commands.
  B. SnapVault does not support throttling of network throughout.
  C. Use the snapvault throttle command.
  D. Use the -k option in the snapvault initialize command.
  D. Use the -k option in the snapvault initialize command.

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  http://backdrift.org/man/netapp/man1/na_snapvault.1.html The snapvault subcommands are: start [ -r ] [ -k n ] [ -t n ] [ -w ] [-p {inet | inet6 unspec}] [ -o options ] [ -S [primary_filer:]primary_path ] secondary_qtree modify [ -k n ] [ -t n ] [-p {inet | inet6 | unspec}] [ -o options ] [ -S primary_filer:primary_path ] sec_ondary_qtree

  The -k option sets the maximum speed at which data is transferred in kilobytes per second. It is used to throttle disk, CPU, and network usage. If this option is not set, the filer transmits data as fast as it can. The setting applies to the initial transfer as well as subsequent update transfers from the primary.

• Question 175:

  You want to create an automated test environment that performs a single file SnapRestore time you run the procedure, however, SnapRestore prompts you to confirm your decision to revert the file. How can you automate this step?

  A. Use the -f option with the snap restore command.
  B. Enable the options snaprestore_noprompts enable = on option.
  C. These prompts are for data protection and auditing and cannot be overridden.
  D. Enter the priv set advanced mode on the storage system and prompt will not appear.
  A. Use the -f option with the snap restore command.

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  https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snap.1.html

  snap restore [ -f ] [ -t vol | file ] [ -s snapshot_name ] [ -r restore_as_path ] vol_name | restore_from_path Reverts a volume to a specified Snapshot copy, or reverts a single file to a revision from a specified Snapshot copy. Before reverting the volume or file, the user is requested to confirm the operation. The -f option suppresses this confirmation step.

• Question 176:

  When will a Volume SnapMirror (VSM) from a 64-bit source to a 32-bit destination volume fail?

  A. When the 64-bit volumes has Volume Guarantee disabled
  B. When the 64-bit volume has compression enabled
  C. When the 64-bit volume has FlexShare enabled
  D. When the 64-bit volume has ASIS enabled
  B. When the 64-bit volume has compression enabled

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  https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-87340429-8F4A-4AA6-B081- 0F5040089C78.html Data compression requires 64-bit aggregates.

• Question 177:

  In a volume SnapMirror relationship, the source and destination volumes must be the same size.

  A. True
  B. False
  B. False

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  In an active volume SnapMirror relationship, the size of the source and destination file systems is identical.

  However, the size of the destination volume can be larger than or equal to the size of the source volume. The size of the file systems must be identical to allow the source to be restored from the destination.

  https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DE5EE692-81CF-4569-A703- 00B4E283CE99.html

• Question 178:

  Which command is used to set the configuration of an Ethernet network interface?

  A. ifconfig
  B. ifstat
  C. netstat - i
  D. sysconfig - v
  A. ifconfig

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  https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_ifconfig.1.html ifconfig - Configures network interface parameters.

• Question 179:

  The quota resize command only affects existing /etc/quotas file target entries, not new quota entries.

  A. True
  B. False
  A. True

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  http://backdrift.org/man/netapp/man1/na_quota.1.html

  quota resize volume Adjusts currently active quotas in the specified volume to reflect changes in the /etc/quotas file. For instance, if you edit an entry in /etc/quotas to increase a user's quota, quota resize will cause the change to take effect. The volume name may be omitted if the system has only one volume. quota resize can be used only when quotas are already on. Because it does not rescan the file system to compute usage, quota resize is faster than turning quotas off and then on again. quota resize will apply all updated entries in /etc/quotas; however, it will generally ignore newly added entries. A newly added entry will only take effect if the corresponding user or group has an active quota as a result of updating a file subject to default quotas.

• Question 180:

  Which command on the storage system allows you to display statistics on the performance of system resource such as CPU, NVRAM, network interfaces, and disks?

  A. netstat
  B. netdiag
  C. pktt
  D. sysstat
  D. sysstat

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  https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_sysstat.1.html sysstat reports aggregated filer performance statistics such as the current CPU utilization, the amount of network I/O, the amount of disk I/O, and the amount of tape I/O.