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NS0-155 Sample Questions Answers

Questions 4

Which two operations can be performed with the SnapDrive for windows graphical user interface?

Options:

A.

Create volume

B.

Create Snapshot copies

C.

Create File

D.

Create Disk

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Questions 5

In a volume SnapMirror relationship, the source and destination volumes must be the same size.

Options:

A.

True

B.

False

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Questions 6

The snapvault restore command is run on the _________.

Options:

A.

secondary system to push data to the primary system

B.

primary system to pull data from the secondary system

C.

secondary system to pull data from the primary system

D.

secondary system to push data to the primary storage system

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Questions 7

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

Options:

A.

10 meters

B.

50 meters

C.

100 meters

D.

500 meters

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Questions 8

Which two commands on the storage system allow you to gather detailed statistics about network interfaces, including basic information about network connections? (Choose two.)

Options:

A.

ifstat -a

B.

netdiag -n

C.

netstat -i

D.

sysstat 1

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Questions 9

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

Options:

A.

Cluster

B.

Cluster_remote

C.

Syncmirror_local

D.

Syncmirror_fabric

E.

Syncmirror_remote

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Questions 10

In a Fiber Channel configuration, the host’s HBA is referred to as the ___________, and the storage system’s HBA to as the _____________.

Options:

A.

Target, initiator

B.

Primary, secondary

C.

Initiator, target

D.

Secondary, primary

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Questions 11

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

Options:

A.

Snoop

B.

Netstats

C.

Pktt

D.

Traceroute

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Questions 12

Five minutes ago, you performed a single file SnapRestore on a large NFS file. 40% of your NFS users are now complaining about getting “stale file handles” for the file. Which is the most likely cause of this problem, and the best procedure to correct it?

Options:

A.

This might be due to an NFS storage system and client mismatch. Check to see that these users have the same version of the NFS client that existed at the time the snapshot was taken.

B.

NFS users why try to access a reverted file without first reopening it might get a “stale file handle” error message. Have the users try to reopen the file and see if the problem is resolved.

C.

After a single file SnapRestore, NFS users have to reboot their systems. Have them reboot their systems.

D.

These users are on a different subnet from the others. Start troubleshooting by checking their subnet.

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Questions 13

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

Options:

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.

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Questions 14

How can you “throttle” SnapValue updates and baseline transfers so that the primary or secondary is not transmitting data as it can?

Options:

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.

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Questions 15

If you were troubleshooting and wanted to look at SnapMirror log files, what is the path to these files?

Options:

A.

/vol/vol0/etc/log/snaplog/

B.

/vol/vol0/etc/snapmirror/

C.

/vol/vol0/etc/snaplog/

D.

/vol/vol0/etc/log/

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Questions 16

Which command disables client access to Snapshot copies on a volume called flexvol1?

Options:

A.

cifs shares -change flexvol1 -nosnap

B.

snap access flexvol1 off

C.

vol options flexvol1 nosnapdir on

D.

vol options flexvol1 snapdir off

E.

vol options flexvol1 snapdir on

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Questions 17

You receive an error message from an iSCSI host stating that there is an authentication error. Which command would troubleshoot the failure?

Options:

A.

iscsi security show

B.

iscsi security generate

C.

iscsi show authentication

D.

iscsi security authentication

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Questions 18

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

Options:

A.

aggr create aggrX -d 12

B.

aggr create aggrX -m 12

C.

aggr mirror aggrX -m 12

D.

aggr mirror aggrX -n 12

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Questions 19

In a fabric-attached MetroCluster, a "site failure" is described as a __________.

Options:

A.

failure of the Inter-Switch-Links (ISL)

B.

failure of the interconnect cable

C.

complete failure of the primary controller and disk shelves

D.

malfunction of the Fibre Channel adapter on the cluster node

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Questions 20

Which two choices are used to configure a semi-synchronous SnapMirror relationship? (Choose two.)

Options:

A.

throttle

B.

visibility interval

C.

outstanding=3s in DOT 7.2

D.

using option semi-sync in DOT 7.3 and higher

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Questions 21

A volume is SnapMirrored hourly. You revert the volume using a snapshot that was created two days ago. Which command continues the relationship?

Options:

A.

SnapMirror initialize

B.

SnapMirror quiesce

C.

SnapMirror resume

D.

SnapMirror resync

E.

SnapMirror update

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Questions 22

The OSSV agent on the primary system listens to TCP port 10000 for all SnapVault communications.

Options:

A.

True

B.

False

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Questions 23

To manage SnapVault relationships with an NDMP management application, you must specify a:

Options:

A.

directory path

B.

volume and qtree

C.

SnapVault license

D.

username and password

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Questions 24

A mirrored volume has a failed disk, but there are no available spares in the pool from which the degraded plex was built. Data ONTAP will __________.

Options:

A.

halt all operations to volumes in that pool

B.

choose spare disks to reconstruct from the opposite pool

C.

warn you that there are no available spares from the proper pool

D.

"halt" after 24 hours if spare disks are not added to the proper pool

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Questions 25

When using SnapRestore to restore a single LUN, the LUN must be ___________.

Options:

A.

exported and accessible

B.

mapped to a Windows server

C.

mounted on a host

D.

taken offline or unmapped

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Questions 26

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

Options:

A.

NVRAM

B.

Mirrored Snapshot copies

C.

RAID groups and disk sizes

D.

NDMP and Snapshot copies

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Questions 27

What security mechanism can an administrator use on an OSSV client to use permissions allowing backup to a SnapVault secondary system?

Options:

A.

MD5 authentication between SnapVault primary and secondary, with changeable password

B.

Contents inside file called access and located in OSSV /snapvault/etc

C.

QSM access list modifiable via svconfigurator

D.

Via /etc/hosts.equiv file

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Questions 28

For automatic user name mapping to occur for a CIFS and UNIX user name that are the same, you must do what?

Options:

A.

Enter the CIFS user in the NIS database.

B.

Enter the user names in the /etc/hosts.equiv file.

C.

Use both a NIS server and a Domain Controller in the network.

D.

Nothing: mapping will occur if user name authentication is available.

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Exam Code: NS0-155
Exam Name: Data ONTAP 7-Mode Administrator
Last Update: Feb 19, 2024
Questions: 189
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