1Z0-821 Oracle Exam Questions and Free Practice Test

Question 25

Which two options describe how to override the default boot behavior of an Oracle Solaris 11 SPARC system to boot the system to the single-user milestone?

A. from the ok prompt, issue this command: boot -m milestone=single-user

B. From the ok prompt, issue this command: boot -m milestone/single-user

C. From the ok prompt, issue this command: boot -milestone=single-user

D. From the ok promp

E. issue this command:boot -s

F. From from the ok prompt, issue this command:boot -m milestone=s

Correct Answer:AD
By default, Solaris will boot to the pseudo milestone “all” and start all services. This behaviour can be changed at boot time using either “-s” to reach single-user, or the new SMF option “-m milestone=XXX” (see kernel(1M) for a list of the bootable milestones) to select an explicit milestone.
Note: boot -s is the same as: boot -m milestone=single-user
with the difference being that the former is a lot less to type and is what most SysAdmins will be familiar with.

Question 26

Your users are experiencing delay issues while using their main application that requires connections to remote hosts. You run the command uptime and get the flowing output:
1:07am up 346 day(s), 12:03, 4 users, load average: 0.02, 0.02, 0.01 Which command will be useful in your next step of troubleshooting?

A. ipadm

B. traceroute

C. dladm

D. snoop

E. arp

Correct Answer:B
Test the remote connection with traceroute.
The Internet is a large and complex aggregation of network hardware, connected together by gateways. Tracking the route one's packets follow (or finding the miscreant gateway that's discarding your packets) can be difficult. traceroute utilizes the IP protocol `time to live' field and attempts to elicit an ICMP TIME_EXCEEDED response from each gateway along the path to some host.
This program attempts to trace the route an IP packet would follow to some internet host by launching UDP probe packets with a small ttl (time to live) then listening for an ICMP "time exceeded" reply from a gateway.

Question 27

Which two SMF milestones can be specified at boot time?

A. none

B. network

C. all

D. config

E. unconfig

F. devices

Correct Answer:AC
The milestones that can be specified at boot time are none
single-user multi-user
multi-user-server all

Question 28

Your mentor suggests using the dladm rename-link command to rename the network datalinks.
What are the two advantages of following this advice?

A. It can clarify which network interface has what purpose.

B. It can simplify specifying the network interface with the dladm modify-aggr command.

C. It can simplify specifying the network interface with the dladm modify-bridge command.

D. It can simplify IP filter rule changes if the network interface is replaced with a different type.

E. It can prevent accidental deletion of the network interface with the dladm delete-phys command.

F. It can prevent accidental deletion of the network interface configuration with the ipadm delete-addr command.

Correct Answer:AD
Note: dladm rename-link [-R root-dir] link new-link
Rename link to new-link. This is used to give a link a meaningful name, or to associate existing link configuration such as link properties of a removed device with a new device.

Question 29

Server A, Server B, and Server C are connected to the same network switch and are on the sari Each server has a single network interface, net0.
You received a tech support call that Server B has lost network connectivity. Your troubleshooting has discovered:
Server A can ping Server C, but not Server B. Server B can ping localhost, but not Server A or C. Server C can ping Server A, but not Server B.
On Server F3, you enter the following command: dladm show-phys | grep net0
Response:
net0/v4 Ethernet down 0 unknown el00gl
What is the next logical troubleshooting action?

A. Run arp -a on all servers.

B. Confirm that the router is working.

C. Confirm that the power light of the network switch is on.

D. Confirm that the physical network connections are intact.

E. On Server A and C, run tranceroute –n server.

F. On Server B, run tranceroute –n servera and tranceroute –n serverc.

Correct Answer:D
Check the physical connection.

Question 30

You are creating a non-global zone on your system.
Which option assigns a zpool to a non-global zone, and gives the zone administrator permission to create zfs file system in that zpool?

A. While creating the non-global zone, make the following entry: add deviceset match=/dev/rdsk/c4t0d0endBoot the zone and log in the zone as roo

B. Create the zpool: zpool create pool2 c4t0d0In the non-global zone, root can now create ZFS file system in the pool2 zpool

C. In the global zone, create the zpool: global# zpool create pool2 c4t1d0While creating the no-global zone, make the following entry: add datasetset name=pool2endadd fsset dir=pool1set special=pool1set type=zfspool1endBoot the zone, log in the zone as root, and create the zfs file system in the pool2 zpool.

D. In the global zone, create the zpool:global#zpool create pool2 c4t1d0While creating the global zone, make the following entry: add datasetset name=pool2endBoot the zone, log in to the zone as root and create the zfs file systems in the pool2 zpool.

E. In the global zone, create the zpool and the ZFS file systems that you want to use in the non-global zone: global#zpool create pool2 c4t1d0global#zfs create pool2/dataWhile creating the non-global zone, make the following entry for each ZFS file system that you want to make available in the zone: add fsset dir=/dataset special=pool2/dataset type=zfsend

F. Create the zpool in the global zone: global#zpool create pool2 c4t1d0Boot the non- global zone, log in to the zone as root, and issue this command to delegate ZFS permissions to root: non-global zone# zfs allow root create , destroy, mount pool2Log in to the non-global zone create ZFS file systems in the pool2 zpool.

Correct Answer:C
http://docs.oracle.com/cd/E19253-01/819-5461/gbbst/index.html

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