NetApp NS0-155 Online Practice Questions and Exam Preparation

NetApp NS0-155 Online Questions & Answers

• Question 131:

  For aggregates or traditional volume SyncMirror to work correctly, the configuration of each plex should be identical with regard to ____________.

  A. NVRAM
  B. Mirrored Snapshot copies
  C. RAID groups and disk sizes
  D. NDMP and Snapshot copies
  C. RAID groups and disk sizes

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  SyncMirror is essentially a RAID-1 mirror; hence the name. The best practice is to mirror storage of equal performance; i.e. identical RAID groups and disk sizes (number of spindles, IOPS). If you were to mirror two storage devices of different performance, the slower device would be the limiting factor.

• Question 132:

  Which action will cause a currently in-sync SnapMirror relationship to fall out of sync?

  A. Running snapmirror update on the source storage system
  B. Running snapmirror release on the source storage system
  C. Modifying the /etc/snapmirror.conf file for the relationship on the source storage system
  D. Modifying the /etc/snapmirror.conf file for the relationship on the destination storage system
  D. Modifying the /etc/snapmirror.conf file for the relationship on the destination storage system

• Question 133:

  A volume SnapMirror relationship is allowed between two SnapLock Compliance volumes if the destination volume has unexpired WORM files.

  A. True
  B. False
  B. False

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  https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-4B97B80F-D208-4154-95BF- D7FF9F5BEE11.html

  A volume SnapMirror relationship is not allowed between two SnapLock Compliance volumes if the destination volume has unexpired files.

• Question 134:

  Which option of the snap restore command allows you to specify a different directory, as long as the directory already exists?

  A. snap restore -c
  B. snap restore -d
  C. snap restore -r
  D. snap restore s
  C. snap restore -r

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  snap restore [ -A | -V ] [ -f ] [ -t vol | file ] [ -s snapshot_name ] [ -r restore_as_path ] vol_name | restore_from_path See more at: http://wafl.co.uk/snap/#sthash.nJiEwxGV.dpuf

• Question 135:

  Which tool is available on an OSSV client to assist in starting or stopping the OSSV service, modifying NDMP settings, enabling debugging, and capturing trace files?

  A. Operations Manager
  B. Protection Manager
  C. Svconfigurator GUI
  D. svdebug.exe
  C. Svconfigurator GUI

  ---

  http://synergy-ds.com/netapp/tr-3466.pdf

  

• Question 136:

  Which SyncMirror command mirrors an existing unmirrored aggregate where Data ONTAP selects the disk drive?

  A. aggr mirror aggrY
  B. aggr mirror aggrY -m
  C. aggr mirror aggrT -d 12@144
  D. aggr mirror aggrY -m 12@144
  A. aggr mirror aggrY

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  https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html

  aggr mirror aggrname

  [ -f ]

  [ -n ]

  [ -v victim_aggrname ]

  [ -d disk1 [ disk2 ... ] ]

  Turns an unmirrored aggregate into a mirrored aggregate by adding a plex to it. The plex is either newlyformed from disks chosen from a spare pool, or, if the -v option is specified, is taken from another existing unmirrored aggregate.

  Aggregate aggrname must currently be unmirrored. Use aggr create to make a new, mirrored aggregate from scratch.

  Disks may be specified explicitly using -d in the same way as with the aggr create and aggr add commands.

  The number of disks indicated must match the number present on the existing aggregate. The disks specified are not permitted to span disk pools. This behavior can be overridden with the -f option. The -f option, in combination with -d, can

  also be used to force using disks that have a rotational speed that does not match that of the majority of existing disks in the aggregate.

  If disks are not specified explicitly, then disks are automatically selected to match those in the aggregate's existing plex.

  The -v option can be used to join victim_aggrname back into aggrname to form a mirrored aggregate. The result is a mirrored aggregate named aggrname which is otherwise identical to aggrname before the operation.

  Victim_aggrname is effectively destroyed. Victim_aggrname must have been previously mirrored with aggrname, and then separated via the aggr split command. Victim_aggrname must be offline. Combined with the -v option, the -f option can

  be used to join aggrname and victim_aggrname without prompting the user.

  The -n option can be used to display the command that the system will execute without actually making any changes. This is useful for displaying the automatically selected disks, for example.

• Question 137:

  Identify the two commands that could be entered on the SnapMirror destination storage system. (Choose two)

  A. Options snapmirror.access on
  B. Options snapmirror.resync on
  C. Snapmirror initialize
  D. Snap mirror resync
  C. Snapmirror initialize
  D. Snap mirror resync

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  https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapmirror.1.html snapmirror initialize [ - S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ] destination Starts an initial transfer over the network. An initial transfer is required before update transfers can take place.

  The initialize command must be issued on the destination node. If the destination is a volume, it must be restricted (see na_vol(1) for information on how to examine and restrict volumes). If the destination is a qtree, it must not already exist (see na_qtree(1) for information on how to list qtrees). If a qtree already exists, it must be renamed or removed (using an NFS or CIFS client), or snapmirror initialize to that qtree will not work.

  snapmirror resync [ -n ] [ -f ] [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ] destination Resynchronizes a broken-off destination to its former source, putting the destination in the snapmirrored state and making it ready for update transfers. The resync command must be issued on the destination node.

• Question 138:

  Which two will allow you to read and analyze a packet trace file generated by the storage system? (Choose two)

  A. WireShark
  B. Pktt
  C. Netmon
  D. Eternal View
  A. WireShark
  C. Netmon

  ---

  pktt is part of the Data OnTap command set.

  The output of pktt is not very human-readable, but it utilizes the tcpdump format which many traffic analyzers can read or import. Only two such analyzers have been offered here.

  Wireshark is the successor of Etherreal, and available for several platforms. Netmon is a Microsoft project, available for Windows, soon to be deprecated by the Microsoft Message Analyzer project.

• Question 139:

  Which command or procedure would you use to undo a volume SnapRestore operation?

  A. snap restore -r vol
  B. snap revert -s vol
  C. snap restore undo vol
  D. You cannot undo a SnapRestore operation at the volume level.
  D. You cannot undo a SnapRestore operation at the volume level.

  ---

  SnapRestore overwrites all data in the file or volume. After you use SnapRestore to revert to a selected Snapshot copy, you cannot undo the reversion. http://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/onlinebk/GUID-80FEDAF8-75FA-4E43- B683- 58C1F66B61E2.html

• Question 140:

  Which command creates a new SyncMirror aggregate, letting Data ONTAP select the disk drives?

  A. aggr create aggrX -d 12
  B. aggr create aggrX -m 12
  C. aggr mirror aggrX -m 12
  D. aggr mirror aggrX -n 12
  B. aggr create aggrX -m 12

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  https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html The following commands are available in the aggr suite:

  

  If you use the -d disk1 [ disk2 ... ] argument, the node creates the aggregate with the specified spare disks disk1, disk2, and so on. You can specify a space-separated list of disk names. Two separate lists must be specified if the new

  aggregate is mirrored. In the case that the new aggregate is mirrored, the indicated disks must result in an equal number of disks on each new plex.

  The disks in a plex are not permitted to span spare pools. This behavior can be overridden with the -f option.

  The same option can also be used to force using disks that do not have matching rotational speed. The f option has effect only when used with the -d option specifying disks to use.

  The -m option can be used to specify that the new aggregate be mirrored (have two plexes) upon creation. If this option is given, then the indicated disks will be split across the two plexes. By default, the new aggregate will not be mirrored.

  aggr mirror aggrname

  The -n option can be used to display the command that the system will execute without actually making any changes. This is useful for displaying the automatically selected disks, for example.