NS0-155 Online Practice Questions and Answers

Correct Answer: D

https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_fcp.1.html fcp show initiator [ -v ] [ adapter ]

If no adapter name is given, information about all initiators connected to all adapters are shown. The command displays the portname of initiators that are currently logged in with the Fibre Channel target adapters. If the portname is in an

initiator group setup through the igroup command, then the group name is also displayed. Similarly, all aliases set with the fcp wwpn-alias command for the portname are displayed as well.

If the -v flag is given, the command displays the Fibre Channel host address and the nodename/portname of the initiators as well.

Correct Answer: D

Disks must be assigned to an aggregate to be used as raid group members or spares. Unassigned disks are displayed as "not owned".

Correct Answer: D

https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_exportfs.1.html exportfs [ -v ] [ -io options ] path -i Ignores the options specified for a file system path in the /etc/exports file. If you do not specify the I option with the -o option, Data ONTAP uses the options specified for the file system path in the /etc/ exports file instead of the options you specify on the command line.

Correct Answer: D

https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_sysstat.1.html sysstat reports aggregated filer performance statistics such as the current CPU utilization, the amount of network I/O, the amount of disk I/O, and the amount of tape I/O.

Correct Answer: B

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Unix-like operating systems identify users within the kernel by an unsigned integer value called a user identifier, often abbreviated to UID or User ID. The range of UID values varies amongst different systems; at the very least, a UID

represents a 15-bit integer, ranging between 0 and

The UID value references users in the /etc/passwd file. Shadow password files and Network Information Service also refer to numeric UIDs. The user identifier has become a necessary component of Unix file systems and processes.

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In POSIX-compliant environments the command-line command id gives the user's user identifier number as well as more information on the user account like the user name, primary user group and group identifier (GID).

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Files and directories are owned by a user. The owner determines the file's owner class. Distinct permissions apply to the owner.

Files and directories are assigned a group, which define the file's group class. Distinct permissions apply to members of the file's group members. The owner may be a member of the file's group. Users who are not the owner, nor a member

of the group, comprise a file's others class. Distinct permissions apply to others. The effective permissions are determined based on the user's class. For example, the user who is the owner of the file will have the permissions given to the

owner class regardless of the permissions assigned to the group class or others class.

Correct Answer: D

http://backdrift.org/man/netapp/man1/na_sysstat.1.html -s Display a summary of the output columns upon termination, descriptive columns such as `CP ty' will not have summaries printed. Note that, with the exception of `Cache hit', the `Avg' summary for percentage values is an average of percentages, not a true mean of the underlying data. The `Avg' is only intended as a gross indicator of performance. For more detailed information use tools such as na_nfsstat, na_netstat, or statit.

Correct Answer: B

snapvault initialize is not a valid command http://backdrift.org/man/netapp/man1/na_snapvault.1.html snapvault start -r [options] -S [prim_system:] prim_qtree_path [sec_system:] sec_qtree_path pri_qtree_path is not a valid command

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/onlinebk/GUID-DB31E1F4-60A8-4F34- A1C4- 8F79754E4DE2.html

Correct Answer: B

disk show [ -o | -s | -n | -v | -a]

Used to display information about the ownership of the disks. Available only on systems with software- based disk ownership. -o lists all disks owned by the filer with the name -s lists all disks owned by the filer with the serial number -n lists all unassigned disks. -v lists all disks. -a lists all assigned disks.

Correct Answer: D

All the network ports should be assigned correct port roles, and all the network ports should be in the same subnet. https://library.netapp.com/ecm/ecm_download_file/ECMP1196907

Correct Answer: D

Correct Answer: C

http://argoat.net/Blog/?p=1466

Correct Answer: B

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.

There is an obscure method using diag mode but that is not supported or mentioned in the exam content. The answer is always add disks to grow past 16TB, or migrate.

Correct Answer: B

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.

Correct Answer: D

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

aggr destroy { aggrname | plexname } [ -f ]

Destroys the aggregate named aggrname, or the plex named plexname. Note that if the specified aggregate is tied to a traditional volume, then the traditional volume itself is destroyed as well. If an aggregate is specified, all plexes in the

aggregate are destroyed. The named aggregate must also not contain any flexible volumes, regardless of their mount state (online, restricted, or offline). If a plex is specified, the plex is destroyed, leaving an unmirrored aggregate or

traditional volume containing the remaining plex.

Before destroying the aggregate, traditional volume or plex, the user is prompted to confirm the operation. The -f flag can be used to destroy an aggregate, traditional volume or plex without prompting the user.

The disks originally in the destroyed object become spare disks. Only offline aggregates, traditional volumes and plexes can be destroyed.

Correct Answer: D

Add a new backup user to the Backup Operators useradmin group list. Enter the following command:

useradmin user add backupuser -g "Backup Operators"

Generate an NDMP password for the new user. Enter the following command:

ndmpd password backupuser

The NDMP password is used to authenticate the NetBackup media server to the storage system. This password is required for setup on the NetBackup management station. https://library.netapp.com/ ecmdocs/ECMM1278284/html/

onlinebk/5snapv37.htm