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1z0-821
Oracle Solaris 11 System Administration Questions and Answers

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Viewing questions 51-60 out of questions

Questions # 51:

Your server has a ZFS storage pool that is configured as follows:

Question # 51

The server has two spare 146-GB disk drives: c3t5d0 c3t6d0

You need to add more space to the pool1 storage pool. Which command would add more mirrored storage to the pool1 storage pool?

Options:

zpool add pool1 mirror c3t5d0 c3t6d0

zpool attach pool1 mirror c3t5d0 c3t6d0

zpool attach pool1 c3r3d0 c3r5d0; zpool attach pool1 c3r4d0 c3r6d0

zpool add pool1 c3r3d0 c3r5d0; zpool add pool1 c3r4d0 c3r6d0

Answer

Questions # 52:

You want to display network interface information. Which command should you use?

Options:

ipadm show-if

ipadm show-addr

ipadm show-prop

ipadm show-addrprop

Answer

Questions # 53:

You wish to edit your crontab file that is located in /var/spool/cron/crontab. What command must you enter to edit this file?

Options:

crontab –e

crontab –e /var/spool/cron/crontab

crontab –r

crontab –e /etc/default/cron

Answer

Explanation

The main tool for setting up cron jobs is the crontab command, though this is not available on every Unix variant. Typically under Solaris or Linux one would create a new crontab or edit an existing one, using the command;

crontab -e

Use the ls -l command to verify the contents of the/var/spool/cron/crontabs file.

Questions # 54:

You are executing this command in the default shell:

sleep 5000 &

The system displays a number. This value is______.

Options:

the priority of the /usr/bin/sleep process

the process ID of the /usr/bin/sleep process

the process ID of the shell spawned to execute /usr/bin/sleep

the process group ID that includes the /usr/bin/sleep process

the amount of memory allocated to the /usr/bin/sleep process

the current number of instances of the /usr/bin/sleep process

Answer

Explanation

If a command is terminated by the control operator ‘&’, the shell executes the command asynchronously in a subshell. This is known as executing the command in the background. The shell does not wait for the command to finish, and the return status is 0 (true).

Questions # 55:

The interface net3 should be operating, but is not.

Command:

Question # 55

Which command should you enter next?

Options:

ipadm create-ip

ipadm enable-if

ipadm show-if

ipadm up-addr

Answer

Explanation

Enable-if -t interface

Enables the given interface by reading the configuration from the persistent store. All the persistent interface properties, if any, are applied and all the persistent addresses, if any, on the given interface will be enabled.

-t, --temporary

Specifies that the enable is temporary and changes apply only to the active configuration.

Questions # 56:

dbzone is currently running on your server.

Which two methods would you use to safely and cleanly shut down dbzone and all of its applications?

Options:

zlogin –z dbzone halt

zoneadm –z dbzone shutdown –i0

zoneadm –z dbzone shutdown

zoneadm –z dbzone halt

zlogin dbzone shutdown –i0

Answer

D, E

Explanation

D: zoneadm halt command halts the specified zones. halt bypasses running the shutdown scripts inside the zone. It also removes run time resources of the zone.

E: Use: zlogin zone shutdown

to cleanly shutdown the zone by running the shutdown scripts.

Use this procedure to cleanly shut down a zone.

1. Become superuser, or assume the Primary Administrator role.

2. Log in to the zone to be shut down, for example, my-zone, and specify shutdown as the name of the utility and init 0 as the state global# zlogin my-zone shutdown -y -g0 -i 0

Questions # 57:

Which network protocol is responsible for routing packets from one network to another?

Options:

TCP

UDP

ICMP

Ethernet

Answer

Explanation

The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet.

Questions # 58:

Select the packet type that identifies members of the group and sends information to all the network interfaces in that group.

Options:

Unicast

Multicast

Broadcast

Bayesian

Quality of Service Priority

Answer

Explanation

IPv6 defines three address types:

unicast

Identifies an interface of an individual node.

multicast

Identifies a group of interfaces, usually on different nodes. Packets that are sent to the multicast address go to all members of the multicast group.

anycast

Identifies a group of interfaces, usually on different nodes. Packets that are sent to the anycast address go to the anycast group member node that is physically closest to the sender.

Questions # 59:

Which two statements are true when updating Solaris 11 from one Support Respository Update (SRU) to another SRU by using the pkg update command?

Options:

By default, the pkg update command automatically creates a backup Boot Environment whenever the kernel is affected by the update.

By default, the pkg update command automatically creates a new Boot Environment whenever the kernel is affected by the update.

The pkg update command can only be used to update to a newer SRU.

The pkg update command can be used to update to a newer or older SRU.

By default, the pkg update command always updates Solaris 11 to the first SRU that was released after the Current SRU.

The pkg update command can only be performed while running in the single-user milestone.

Answer

B, C

Questions # 60:

zone1 is a non-global zone that has been configured and installed.

zone1 was taken down for maintenance, and the following command was run:

zoneadm -z zone1 mark incomplete

The following information is displayed when listing the zones on your system:

Question # 60

Which task needs to be performed before you can boot zone1?

Options:

The zone needs to be installed.

The zone needs to be brought to the ready state.

The zone needs to be uninstalled and reinstalled.

The zone needs to be brought to the complete state.

Answer

Explanation

If administrative changes on the system have rendered a zone unusable or inconsistent, it is possible to change the state of an installed zone to incomplete.

Marking a zone incomplete is irreversible. The only action that can be taken on a zone marked incomplete is to uninstall the zone and return it to the configured state.

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