NetApp NS0-155 Online Practice Questions and Exam Preparation

NetApp NS0-155 Online Questions & Answers

• Question 141:

  A snapshot is a frozen, read-only image of the entire Data ONTAP active file system that reflects the state of the ____________ at the time the snapshot was created.

  A. qtrees
  B. volume
  C. directory
  D. storage system
  B. volume

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

  Snapshots can be made of volumes or aggregates; most commonly the former. The question refers to a file system, or more specifically a volume. You cannot snapshot directories or qtrees alone.

• Question 142:

  When using MetroCluster in a forced takeover mode, identify two methods for restricting access to the disaster site node. (Choose two)

  A. Use manual fencing
  B. Use the cf giveback f command.
  C. Use the cf forcetakeover d command.
  D. Turn off power to the disaster site node.
  E. Isolate the failed node from the surviving node.
  A. Use manual fencing
  D. Turn off power to the disaster site node.

  ---

  http://vipulvajpayeestorage.blogspot.com/2012/01/manually-failover-activity-in-netapp.html

  In order to test or effect a Disaster Recovery operation, you must restrict access to the disaster site node to prevent the node from resuming service. If you do not, you risk the possibility of data corruption.

  Access to the disaster site note can be restricted in the following ways:

  Turn off the power to the disaster site node Use "manual fencing" (Disconnect VI interconnects and fiber channel cables; either physically or through configuration changes on the fabric switches.) Isolating the failed node from the surviving

  node could still lead to the possibility of a split brain, so this is not a correct answer.

• Question 143:

  Which system is recommended as a secondary system for SnapVault?

  A. IS1200
  B. DataFort
  C. NearStore VTL
  D. FAS with NearStore license
  D. FAS with NearStore license

• Question 144:

  One method of configuring an interface for takeover is to enter ifconfig interface partner address at the command line. To make this configuration persistent across reboots, you must enter this information in the _____ file for each system.

  A. /etc/rc
  B. /etc/hosts
  C. /vol/vol0/home
  D. /vol/vol0/mount
  A. /etc/rc

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  Startup commands for your storage system are stored in the /etc/rc file. The /etc/rc file contains commands that the storage system executes at boot time to configure the system.

  Commands in the /etc/rc file configure the storage system to: Communicate on your network Use the NIS and DNS services Save the core dump that might exist if the storage system panicked before it was booted

  https://library.netapp.com/ecmdocs/ECMM1278265/html/sysadmin/accessing/concept/c_oc_accs_syste mstartup-etc-rc-file.html#c_oc_accs_system-startup-etc-rc-file

• Question 145:

  What are three true statements about physical reallocation of data added in ONTAP 7.3? (Choose three.)

  A. Use reallocate -p pathname to run the physical reallocate.
  B. Use aggr reallocate -p pathname to run the physical reallocate.
  C. Reinitialize any SnapMirror relationship for the new physical geometry.
  D. Volume Snapshots do not need to be deleted for the reallocate to run effectively.
  E. Dont run it on files, volumes, and LUNs that are in an aggregate created by a version of ONTAP earlier than 7.2.
  A. Use reallocate -p pathname to run the physical reallocate.
  D. Volume Snapshots do not need to be deleted for the reallocate to run effectively.
  E. Dont run it on files, volumes, and LUNs that are in an aggregate created by a version of ONTAP earlier than 7.2.

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

  The -p option requests that reallocation of user data take place on the physical blocks in the aggregate, but the logical block locations within a flexible volume are preserved. Aggregate reallocation is not supported on aggregates created prior to Data ONTAP 7.2. 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 146:

  Which three licenses are required for fabric-attached MetroCluster? (Choose three.)

  A. Cluster
  B. Cluster_remote
  C. Syncmirror_local
  D. Syncmirror_fabric
  E. Syncmirror_remote
  A. Cluster
  B. Cluster_remote
  C. Syncmirror_local

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  https://communities.netapp.com/servlet/JiveServlet/previewBody/4803-102-1-6405/tr-3548.pdf http:// backdrift.org/man/netapp/man1/na_license.1.html In preparation for a fabric attached metrocluster configuration, the following licenses must be installed: Cluster syncmirror _local cluster_remote syncmirror_fabric and syncmirror_remote are not valid license types.

• Question 147:

  You are troubleshooting a clustered failover problem at a customer site. The customer explains that both storage systems were NFS mounted onto the Solaris host. While in takeover mode, you attempt to create a file on the NFS mount point

  for the inaccessible system, but you get the following error:

  NFS server filer2 not responding still trying.

  When not in takeover mode, both storage systems operate normally and you do not get the error. You perform a "cf giveback" and you can now create a file over NFS on both systems. What should you do first to resolve this issue?

  A. Replace the NIC adapter.
  B. Submit a new bug report.
  C. Use the cluster-config-checker.cgi to identify the problem and corrective action.
  D. Replace the cluster interconnect card and run diagnostics "all" to ensure proper system operation.
  C. Use the cluster-config-checker.cgi to identify the problem and corrective action.

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  This question implies that there is an issue with the clustering of the two controllers. Since this is the case you will want to run the cluster configuration checker to identify and resolve any issues. https://library.netapp.com/ecmdocs/ECMM1278349/html/upgrade/upgrading/concept/c_oc_upg_b4_ac tive2.html

• Question 148:

  When viewing the output of the sysstat f command, which three fields are part of the output? (Choose three)

  A. FCP
  B. FTP
  C. CIFS
  D. NFS
  E. iSCSI
  A. FCP
  C. CIFS
  D. NFS

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

  sysstat [ -c count ] [ -s ] [ -u | -x | -m | -f | -i | -b ] [ -d ] [ interval ] -f For the default format display FCP statistics. The FCP default output format is as follows: CPU NFS CIFS FCP Net kB/s Disk kB/s FCP kB/s Cache in out read write in out age ###% ##### ##### ##### ##### ##### ##### ##### ##### ##### >##

• Question 149:

  An aggregate is composed of twelve 36-Gigabyte disks. A drive fails and only 72-Gigabyte spare disks are available. Data ONTAP will then perform what action.

  A. Chooses a 72-Gigabyte disk and use it as is.
  B. Chooses a 72-Gigabyte disk and right-size it.
  C. Halts after 24 hour of running in degraded mode.
  D. Alerts you that there are no 36-Gigabyte disks and wait for one to be inserted.
  B. Chooses a 72-Gigabyte disk and right-size it.

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  https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-8A91F6A2-61B8-42C3- AEAB7D5AA9BBE9CF.html

  If a disk fails and no hot spare disk that exactly matches the failed disk is available, Data ONTAP uses the best available spare. Understanding how Data ONTAP chooses an appropriate spare when there is no matching spare enables you to

  optimize your spare allocation for your environment.

  Data ONTAP picks a non-matching hot spare based on the following criteria (and more; in the link above):

  If the available hot spares are not the correct size, Data ONTAP uses one that is the next size up, if there is one.

  The replacement disk is downsized (aka right sized) to match the size of the disk it is replacing; the extra capacity is not available.

• Question 150:

  Which two are Data ONTAP commands for creating LUNs on a storage system? (Choose two.)

  A. lun create
  B. lun config
  C. lun make
  D. lun setup
  A. lun create
  D. lun setup

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  https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.html The following commands are available in the lun suite:

  

  Easy to use interactive mechanism for setting up initiator groups, LUNs, and mapping configuration.