NetApp New Release NS0-155 Questions & Answers

• Question 181:

  Which two modes support using SnapMirror over multiple network paths?

  A. Standalone

  B. Partner

  C. Multi

  D. Failover

  E. Give back

  Correct Answer: CD

  https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-75BD4540-A103-4E2B-8B0A- E6BBC0D3F43F.html

  http://backdrift.org/man/netapp/man5/na_snapmirror.conf.5.html

  Two multipath methods are supported:

  The multiplexing mode causes snapmirror to use both paths at the same time. If one should fail, it will switch to use the remaining path only and use both again should the failing path be repaired. Failover mode causes snapmirror to use the

  first path as the desired path and only use the second path should problems arise with the first path.

• Question 182:

  The root admin on the UNIX box receives an "Access Denied" message when he attempts to access a newly mounted qtree. What's the most likely cause of this error?

  A. The qtree is missing from the /etc/hosts file.

  B. NFS is turned off on the storage system.

  C. The qtree is set to ntfs security style.

  D. The qtree has not been exported.

  Correct Answer: C

  http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/smg/GUID-866DD79D-D2A6-4FBA- B0BDA63560FECEFF.html https://library.netapp.com/ecmdocs/ECMP1196891/html/GUID-F6304830-B124-40A5-95D6- C646AA85E9E0.html Only hostnames and IPs are referenced in /etc/hosts, so A is incorrect. The question states that the qtree was mounted, and B and D would preclude this so they are incorrect. You need to set a qtree to mixed or unix security style to support

  UNIX users.

• Question 183:

  What utility on the storage system will allow you to capture network packet information?

  A. Snoop

  B. Netstats

  C. Pktt

  D. Traceroute

  Correct Answer: C

  The pktt command controls a simple on-filer packet tracing facility. Packets can be captured into a trace buffer then dumped to a file, or the captured data can be logged to a file. The data is stored in "tcpdump" format, and can be directly viewed with tcpdump, ethereal, and perhaps other viewers. The output can also be converted using the editcap(1) program to a variety of other formats, including Sniffer, NetMon, and snoop.

• Question 184:

  Which statement is true about expanding an aggregate from 32-bit to 64-bit in place?

  A. All aggregates are automatically converted from 32-bit to 64-bit with the Data ONTAP 8.1 upgrade.

  B. The expansion is triggered by an aggr convert command.

  C. The expansion is triggered by adding disks to exceed 16 TB.

  D. The 32-bit aggregates are degraded and must be Volume SnapMirrored to a new 64-bit aggregates with Data ONTAP 8.1 upgrade.

  Correct Answer: C

  http://www.ntapgeek.com/2011/12/how-in-place-expansion-works.html To upgrade an aggregate in-place, the only available method is to add disks to expand the aggregate to >16TB.

• Question 185:

  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.

  Correct Answer: B

  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 186:

  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

  Correct Answer: AC

  Volume SnapMirror Interoperability Matrix.

  

  Reference: SnappMirror Async Overview and Best Practices guide.

  

• Question 187:

  In Data ONTAP, the root user is exempt from those two quotas: ______________. (Choose two)

  A. User quotas

  B. Tree quotas

  C. Root quotas

  D. Group quotas

  E. File quotas

  Correct Answer: AD

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

  User and group quotas do not apply to the root user or to the Windows Administrator account; tree quotas, however, do apply even to root and the Windows Administrator account.

• Question 188:

  Node 1 in a clustered pair detects that it has lost connectivity to one of its disk shelves. Node 1 is still up, but it cannot see one of its disk shelves. However, the partner node, Node 2, can see all of the Node 1's disk shelves. Which feature will cause Node 2 to monitor this error condition for a period of three minutes by default, and then forcibly take over Node 1 if the error condition persists?

  A. Auto enable of giveback

  B. Negotiated Fail Over

  C. Takeover on panic

  D. Cf.quickloop.enable

  Correct Answer: B

  http://www.wafl.co.uk/cf/

  http://wafl.co.uk/options/

  Negotiated failover is a general facility which supports negotiated failover on the basis of decisions made by various modules.

  cf.takeover.on_disk_shelf_miscompare

  This option allows negotiated takeover to be enabled when the cluster nodes detect a mismatch in disk shelf count. By default, this option is set to off.

  This option is available only when cluster is licensed and changing the value on one filer automatically changes the value on the partner filer.

• Question 189:

  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.

  Correct Answer: D

  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.