[Free] Download New Updated (December) Network Appliance NS0-155 Exam Questions 51-60

Ensurepass

QUESTION 51

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

 

Correct Answer: CD

Explanation:

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 ] destinationStarts 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 berestricted (see na_vol(1) for information on how to examine and restrict volumes). If the destination is a qtree, itmust not already exist (see na_qtree(1) for information on how to list qtrees). If a qtree already exists, it mustbe 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 ] destinationResynchronizes a broken-off destination to its former source, putting the destination in the snapmirrored stateand making it ready for update transfers. The resync command must be issued on the destination node.

 

 

 

 

QUESTION 52

What is the maximum distance between a standard clustered pair at 2Bbps?

 

A.

100 meters

B.

10 meters

C.

50 meters

D.

500 meters

 

Correct Answer: D

 

 

QUESTION 53

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

 

A.

Running snapmirroe 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.

 

Correct Answer: D

Explanation:

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

https://library.netapp.com/ecmdocs/ECMP1196979/html/man5/na_snapmirror.conf.5.html

snapmirror update [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ] [ -w ] destination

For asynchronous mirrors, an update is immediately started from the source to the destination to update themirror with the contents of the source.

 

For synchronous mirrors, a snapshot is created on the source volume which becomes visible to clients of thedestination volume.

 

The snapmirror update command must be issued on the destination filer.

 

snapmirror release source { filer:volume | filer:qtree }

Tell SnapMirror that a certain direct mirror is no longer going to request updates.

If a certain destination is no longer going to request updates, you must tell SnapMirror so that it will no longerretain a snapshot for that destination. This command will remove snapshots that are no longer needed forreplication to that destination, and can be used to clean up SnapMirror-created snapshots after snapmirrorbreak is issued on the destination side.

 

The source argument is the source volume or qtree that the destination is to be released from. The destinationargument should be either the destination filer and destination volume name or the destination filer anddestination qtree path. You can use a line from the output of the snapmirror destinations command as the setof arguments to this command.The /etc/snapmirror.conf file exists on the node containing the mirror used for SnapMirror.

 

 

QUESTION 54

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

 

Correct Answer: A

Explanation:

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 Numberavailable to some hosts and unavailable to other hosts.

 

 

QUESTION 55

Which MetroCluster configuration procedure is recommended for re-establishing a mirrored volume that was in a level-0 resynchronization state when it failed?

 

A.

Determine which volumes are at the remote and disaster sites.

B.

Re-create the synchronous mirror.

C.

Rejoin the two volumes.

D.

Turn on power to the cluster node at the disaster site.

 

Correct Answer: B

Explanation:

https://library.netapp.com/ecmdocs/ECMP1210206/html/GUID-A865DB95-9418-4ED2-A993-74F347F674A0.html

 

1. Validate that you can access the remote storage by entering the following command:

aggr status -r

Note:

A (level-0 resync in progress) message indicates that a plex cannot be rejoined.

 

2. Turn on the power to the node at the disaster site. After the node at the disaster site boots up, it displays thefollowing:

Waiting for giveback…(Press Ctrl-C to abort wait)

 

3. If the aggregates at the disaster site are online, take them offline by entering the following command for eachaggregate that was split:

aggr offline disaster_aggr

disaster_aggr is the name of the aggregate at the disaster site.

Note:

An error message appears if the aggregate is already offline.

 

4. Destroy every target plex that is in a level-0 resync state by entering the following command:

aggr destroy plex_name

 

5. Re-create the mirrored aggregates by entering the following command for each aggregate that was split:

aggr mirror aggr_name -v disaster_aggr

aggr_name is the aggregate on the surviving site’s node.

disaster_aggr is the aggregate on the disaster site’s node.

The aggr_name aggregate rejoins the disaster_aggr aggregate to reestablish the MetroClusterconfiguration.

 

6. Enter the following command at the partner node:

cf giveback

The node at the disaster site reboots.

 

 

QUESTION 56

Which NetApp Storage Tier component works controller-wide on a FAS controller?

 

A.

Flash Pool

B.

Flash Disk

C.

Flash Accel

D.

Flash Cache

E.

Flash IO

 

Correct Answer: D

Explanation:

http://www.netapp.com/us/system/pdf-reader.aspx?m=ds-3177-0512.pdf&cc=us

http://www.netapp.com/us/products/storage-systems/flash-cache/index.aspx?ref_source=ntp141p359372brg-c-26967a63-442e-c7e9-6a73-00002efa4dd6&gclid=CLLdsqWKrbkCFS4aOgodb1AAuA

 

Flash Cache is a controller-attached PCIe intelligent caching solution.

Flash Accel is a host-attached caching solution.

Flash Pool utilizes SSDs to enhance performance of disk aggregates (implicitly not controller-wide).

Flash Disk and Flash IO are ambiguous terms.

 

 

QUESTION 57

Executing this command will have what effect?

 

Optionswafl.default_security_style ntfs

 

A.

It will set the security style of all files to be ntfs.

B.

It will change the security style of all qtrees to be ntfs.

C.

It will change the security style of all existing volumes to be ntfs.

D.

It will set the security style of all newly created volumes to ntfs.

 

Correct Answer: D

Explanation:

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

 

wafl.default_security_style

Specifies the default security style assigned to a new volume. All qtrees created on the volume get this as theirsecurity style. Legal values for this option are `unix’, `ntfs’, or `mixed’. The default value for this option is `unix’,unless the node is an NTFS-only node, in which case the default is `ntfs’.

Note:

If cifs setup is run after setting wafl.default_security_style, the filer will become an NTFS security stylefiler.

 

 

QUESTION 58

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

Explanation:

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 59

Which two modes support using SnapMirror over multiplenetworkpaths?

 

A.

Standalone

B.

Partner

C.

Multi

D.

Failover

E.

Give back

 

Correct Answer: CD

Explanation:

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 switchto 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 pathshould problems arise with the first path.

 

 

QUESTION 60

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.

 

Correct Answer: AD

Explanation:

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 nodeto 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 nodeUse “manual fencing” (Disconnect VI interconnects and fiber channel cables; either physically or throughconfiguration 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 acorrect answer.

 

Free VCE & PDF File for Network Appliance NS0-155 Real Exam< br>
Instant Access to Free VCE Files: CompTIA | VMware | SAP …
Instant Access to Free PDF Files: CompTIA | VMware | SAP …

This entry was posted in NS0-155 Exam Questions (December) and tagged , , , , , , . Bookmark the permalink.