NetApp NS0-158 Online Practice Questions and Exam Preparation

NetApp NS0-158 Online Questions & Answers

• Question 1:

  Click the Exhibit button.

  

  You create a new SnapMirror relationship, but is fails to initialize. The SnapMirror relationship is configured as shown in the exhibit. How would you solve this problem?

  A. Re-create the destination volume as C.UTF-8.
  B. Re-create the destination volume as en_US.
  C. Change the language on the source volume to en_US.
  D. Change the language on the destination volume to C.UTF-8.
  D. Change the language on the destination volume to C.UTF-8.

  ---

  Cause: The language setting in the source Vserver is not the same as the language setting in the destination Vserver.

  Resolution: The only way to resolve this issue is to create a destination Vserver with the same language setting as the source Vserver.

  References:

  https://kb.netapp.com/support/s/article/ka11A000000167gQAA/troubleshooting-workflow- snapmirror-initialization-failures?language=en_US

• Question 2:

  A customer has a 1,000 GB volume used as a NAS share that has 3x 100 GB files and has no existing Snapshot copies. The customer creates a Snapshot copy of the volume, adds a 500 Gb file to the volume, and then deletes one of the 100 GB files from the volume.

  How much free space is in the volume in this scenario?

  A. 500 GB
  B. 200 GB
  C. 300 GB
  D. 600 GB
  B. 200 GB

  ---

  Snapshot copies minimize disk consumption by preserving individual blocks rather than whole files. Snapshot copies begin to consume extra space only when files in the active file system are changed or deleted. When this happens, the original file blocks are still preserved as part of one or more Snapshot copies.

  

  References: https://library.netapp.com/ecmdocs/ECMP1368826/html/GUID-CF9E77A6- BDD9-4138-A281-FC0E7BEA4C6D.html

• Question 3:

  You have a cluster of FAS controllers with HDD aggregates. The data is being compressed into 32 KB blocks before being written to a volume. In this scenario, which type of compression is being used?

  A. secondary, inline compression
  B. adaptive, inline compression
  C. adaptive, postprocess compression
  D. secondary, postprocess compression
  A. secondary, inline compression

  ---

  NetApp data compression reduces the physical capacity required to store data on storage systems by compressing data within a flexible volume (FlexVol volume) on primary, secondary, and archive storage. It compresses regular files, virtual local disks, and LUNs.

  When NetApp data compression is configured for inline operation, data is compressed in memory before it is written to disk.

• Question 4:

  A storage administrator wants to recover a file from a snapshot. The rest of the data in this volume should be preserved. In this scenario, which command would you use?

  A. volume snapshot compute-reclaimable
  B. volume snapshot restore
  C. volume snapshot rename
  D. volume snapshot restore-file
  D. volume snapshot restore-file

  ---

  The volume snapshot restore-file command enables you to restore a single file to a version saved in the Snapshot copy.

  References: https://library.netapp.com/ecmdocs/ECMP1610202/html/volume/snapshot/restore-file.html

• Question 5:

  Click the Exhibit button.

  

  An administrator has a 4-node FAS8200 cluster, as shown in the exhibit. A failover process is initiated to reboot node cl1-02. Regarding storage failover giveback processes, which statement is true?

  A. During giveback, node cl1-01 simultaneously returns ownership of both root and data aggregates to cl1-02.
  B. During giveback, node cl1-01 returns ownership of all aggregates to cl1-02, before reverting the data LIFs back to the home ports.
  C. During giveback, node cl1-01 returns ownership of the root aggregate to cl1-02 before returning ownership of the data aggregates.
  D. During giveback, node cl1-01 moves ownership of the root aggregate to cl1-04 and ownership of the data aggregates to cl1-04.
  C. During giveback, node cl1-01 returns ownership of the root aggregate to cl1-02 before returning ownership of the data aggregates.

  ---

  The following process takes place in a normal giveback. In this discussion, node A has taken over node B. Any issues on Node B have been resolved and it is ready to resume serving data. References: https://library.netapp.com/ecmdocs/ECMP1196905/html/GUID-E8DC7475- 49ED-4397-9F00-AC5CB2875CA5.html

• Question 6:

  Click the Exhibit button.

  

  While reviewing the port health shown in the exhibit, you notice that port e0c on node1 is degraded. What would cause this problem?

  A. The port is not plugged into a switch.
  B. The port is in the wrong broadcast domain.
  C. The port does not have an IP address.
  D. The port has been flapping.
  B. The port is in the wrong broadcast domain.

  ---

  L2 reachability health monitor: Monitors whether all ports configured in the same broadcast domain have L2 reachability to each other. This health monitor reports L2 reachability issues in all IPspaces; however, it marks only the ports in the cluster IPspace as degraded.

• Question 7:

  Click the exhibit button.

  

  In reference to the NFS export-policy rules shown in the exhibit, NFS clients mounted to /data1 from the 192.168.1.0/24, 192.168.2.0/24 and 192.168.3.0/24 subnets are able to mount /data1 and read files but are unable to edit files or write new files. All other subnets require read-only access to /data1.

  What must you do to allow write access to the three subnets while allowing read-only access to all other subnets in this scenario?

  A. Set the index of ruleindex 2 to ruleindex 4.
  B. Set the index of ruleindex 1 to ruleindex 4.
  C. Set the index of ruleindex 3 to ruleindex 4.
  D. Set the index of ruleindex 4 to ruleindex 1.
  B. Set the index of ruleindex 1 to ruleindex 4.

  ---

  Make sure the rule with ruleindex 1 is applies last.

  Note: You can use the vserver export-policy rule setindex command to manually set an existing export rule's index number. This enables you to rearrange the order in which Data ONTAP processes export rules.

  If a client makes an access request that is not permitted by the applicable export policy, the request fails with a permission-denied message. If a client does not match any rule in the export policy, then access is denied. If an export policy is

  empty, then all accesses are implicitly denied.

  References: https://library.netapp.com/ecmdocs/ECMP1610208/html/GUID-52664AEE- B4EB-45A9-900F-ED504540366F.html

• Question 8:

  What are three volume-level storage efficiency features of ONTAP? (Choose three.)

  A. deswizzle
  B. space reclamation
  C. compaction
  D. compression
  E. deduplication
  A. deswizzle
  D. compression
  E. deduplication

  ---

  DE: NetApp deduplication is an integral part of the NetApp Data ONTAP operating environment and the WAFL file system, which manages all data on NetApp storage systems. NetApp data compression, introduced in Data ONTAP 8.0.1, is highly complementary to deduplication.

  A: Data within a FlexVol has both a logical location within the volume and a physical location within the containing aggregate. When reading data from a FlexVol, the physical location of that data must be known to perform the read. Under normal circumstances, reads use a fast-path to translate a logical address into a physical address. When SnapMirror transfers a FlexVol to a different aggregate, however, the relationship between logical and physical addresses is changed. The destination aggregate lays out the volume into different physical blocks. Immediately after the SnapMirror transfer, reads to the destination volume will use a different process to translate logical addresses into physical addresses. This slow-path is less efficient and may require an additional disk read to access a block of data. As soon as a FlexVol SnapMirror update finishes, the destination storage controller will launch a scanner to recreate the fast-path metadata. Once the scan finishes, reads to the SnapMirror destination will use the normal fast-path. This process is known as deswizzling.

  References: http://community.netapp.com/t5/Tech-OnTap-Articles/Back-to-Basics- Deduplication/ta-p/84888 https://kb.netapp.com/support/s/article/ka21A0000000arxQAA/what-is-deswizzler-or- deswizzling?language=en_US

• Question 9:

  An administrator is designing an ONTAP solution that consists of eight FAS8200 nodes in a single cluster. Each node will use four ports for cluster connections. Which cluster interconnect switch model should be used in this scenario?

  A. Nexus 5596UP
  B. Nexus 5010
  C. CN1610
  D. CN1601
  A. Nexus 5596UP

  ---

  The following cluster switches are supported: NetApp CN1610, Cisco Nexus 5596UP and 5596T. The cluster switches use the following Inter-Switch Link (ISL) ports:

  References: https://library.netapp.com/ecm/ecm_download_file/ECMP1140532

• Question 10:

  Click the Exhibit button.

  

  After logging into an SVM using the vsadmin user account, you are able to see existing volumes, but are unable to create new volumes.

  Referring to the configuration shown in the exhibit, what is the problem?

  A. The vsadmin user is not assigned the correct application access.
  B. No aggregates have been assigned to the SVM.
  C. Aggregate SAS_01 is out of space.
  D. The vsadmin role does not have the create volumes privilege.
  D. The vsadmin role does not have the create volumes privilege.