NetApp NS0-155 Online Practice Questions and Exam Preparation

NetApp NS0-155 Online Questions & Answers

• Question 181:

  What is the maximum number of disk shelves per loop in a fabric-attached MetroCluster?

  A. 1
  B. 2
  C. 4
  D. 6
  B. 2

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  You can cable a maximum of two disk shelves on each loop https://library.netapp.com/ecm/ ecm_download_file/ECMP1210206

• Question 182:

  Snapshot copies for SnapLock volumes are deleted automatically according to the retention count set in the Snapshot schedule.

  A. True
  B. False
  A. True

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  https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-83A15F85-92A1-4EA8-A9EC- B9E0E2269E37.html

• Question 183:

  Normally, before you split a SyncMirror volume, you ensure that both plexes are _______ and _______.

  A. offline, quiesced
  B. online, consistent
  C. online, normal
  D. restricted, offline
  C. online, normal

  ---

  Ensure that both plexes of the mirrored aggregate you are splitting are online and operational.

  https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DE08C404-6E9C-47F6-A72E- CDEE2043408C.html

• Question 184:

  The largest volume that can be created on a 64-bit aggregate is ___.

  A. 10 TB
  B. 16 TB
  C. 64 TB
  D. Equal to size of the aggregate
  D. Equal to size of the aggregate

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  http://www.netapp.com/us/system/pdf-reader.aspx?m=tr-3786.pdfandcc=us

  Trick question.... Depends on the array and the maximum shelves and disks and aggregate size, which can change over time. But a volume can never be greater than the aggregate - save for a new feature in 8.2 called Infinite Volume that is not covered by this exam.

• Question 185:

  Which mechanism allows you to make LUNs available to some initiators and unavailable to others?

  A. LUN masking
  B. LUN grouping
  C. LUN cloning
  D. LUN hiding
  A. LUN masking

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  http://en.wikipedia.org/wiki/Logical_Unit_Number_masking Logical Unit Number Masking or LUN masking is an authorization process that makes a Logical Unit Number available to some hosts and unavailable to other hosts.

• Question 186:

  These are three methods of creating a LUN:

  *

  lun create

  *

  lun map

  *

  lun setup

  A. True
  B. False
  B. False

  ---

  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.

  lun map [ -f ] lun_path initiator_group [ lun_id ]

  Maps a LUN to all the initiators in the supplied group

• Question 187:

  Which two commands can be used to enable LUN reservations? (Choose two)

  A. lun set reservation
  B. lun reservation set
  C. lun map
  D. lun create
  A. lun set reservation
  D. lun create

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

  lun set reservation lun_path [ enable | disable ]

  Enables or disables the space reservation on the LUN. If no arguments are supplied after the lun_path, then the space reservation status of the given lun_path is displayed. lun create -s size -t ostype [ -o noreserve ] [ -e space_alloc ]

  lun_path This usage of the lun create command should be employed to create a new LUN of given size, with initially zero contents. The LUN is created at the lun_path given. No file should already exist at the given lun_path. The directory

  specified in the lun_path must be a qtree root directory.

  The size is specified in bytes. Optionally, a number followed by a one-character multiplier suffix can be used: c (1), w (2), b (512), k (1024), m (k*k), g (k*m), t (m*m).

  The size of the created LUN could be larger than the size specified, in order to get an integral number of cylinders while reporting the geometry using SAN protocols. The size of the LUN actually created is reported if it is different from that

  specified in the command. The mandatory ostype argument is one of:

  solaris (the LUN will be used to store a Solaris raw disk in a singleslice partition), windows (the LUN will be used to store a raw disk device in a single-partition Windows disk using the MBR (Master Boot Record) partitioning style), hpux (the

  LUN will be used to store HP-UX data), aix (the LUN will be used to store AIX data), vld (the LUN contains a SnapManager VLD), linux (the LUN will be used to store a Linux raw disk without any partition table), netware (the LUN will be used

  to store NetWare data), vmware (the LUN will be used to store VMware data), windows_gpt (the LUN will be used to store Windows data using the GPT (GUID Partition Type) partitioning style), windows_2008 (the LUN will be used to store

  Windows data for Windows 2008 systems), openvms (the LUN will be used to store Open-VMS data), xen (the LUN will be used to store Xen data), hyper_v (the LUN will be used to store Hyper-V data), solaris_efi

  By default, the LUN is space-reserved. To manage space usage manually, -o noreserve can be specified.

  Using this option will create a LUN without any space being reserved. Provisioning threshold events can be enabled by specifying -e space_alloc option. This option has to be used in conjunction with -o noreserve.

  lun map [ -f ] lun_path initiator_group [ lun_id ]

  Maps a LUN to all the initiators in the supplied group. If a LUN ID is not specified, the smallest number that can be used for the various initiators in the group is automatically picked. Note that this command can be used multiple times to

  configure multiple maps for a LUN, or for an initiator group. Once created, you can use lun show -m to list all the LUN mappings. The optional -f argument disables checking with the HA partner for LUN mapping conflicts.

• Question 188:

  Which two Volume SnapMirror (VSM) relationship are supported? (Choose two)

  A. Data ONTAP 8.0.2 64-bit -->Data ONTAP 8.1 64-bit
  B. Data ONTAP 8.0.2 32-bit --> Data ONTAP 8.0.2 64-bit
  C. Data ONTAP 7.3.2 32-bit --> Data ONTAP 8.1 64-bit
  D. Data ONTAP 7.3.2 32-bit --> Data ONTAP 8.0.2 64-bit
  A. Data ONTAP 8.0.2 64-bit -->Data ONTAP 8.1 64-bit
  C. Data ONTAP 7.3.2 32-bit --> Data ONTAP 8.1 64-bit

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  Volume SnapMirror Interoperability Matrix.

  

  Reference: SnappMirror Async Overview and Best Practices guide.

  

• Question 189:

  The SnapVault secondary system allows you to keep a separate schedule of Snapshot copies from your primary system.

  A. True
  B. False
  A. True