Examine the two commands and the output produced: [root@host03 ~]# iscsiadm –m session iscsiadm: No active sessions. [root@host03 ~]# iscsiadm –m node 192.0.2.1:3260,1 iqn.2013-03.com.example.mypc:3 192.0.2.1:3260,1 iqn.2013-03.com.example.mypc:2 192.0.2.1:3260,1 iqn.2013-03.com.example.mypc:1

Which option represents the correct command or commands to establish iSCSI sessions with the target portal 192.0.2.1:3260?

A. iscsiadm –m session -1

B. iscsiadm –m node -1

C. iscsiadm –m discovery –t st –p 192.0.2.1 iscsiadm –m session -1

D. iscsiadm –m discovery –t st –p 192.0.2.1 iscsiadm –m host -1

Which statement is true about btrfs file system devices?

A. You must execute the btrfs device scan after every reboot to add a device to a btrfs file system.

B. The btrfs device scan -all-devices command scans physical devices looking for members of a btrfs volume.

C. Blocks are automatically rebalanced across all existing devices after adding new devices.

D. A device may be added to btrfs only if the file system is unmounted.

Your Oracle Linux system is frozen and you want to restart it cleanly by using magic SysRq keys. You were using a gnome desktop before the freeze.

Examine this list of keys and functions:

Which option represents the SysRq keys in the correct order that must be used to cleanly restart the system?

A. 4. 6. 2, 3, 7, 5, 1

B. 4, 2, 6, 3, 7, 1

C. 4, 6, 8, 2, 3, 7, 5, 1

D. 4, 8, 6, 2, 3, 7, 5, 1

E. 4, 2, 6, 3, 5, 1

A container is not starting.

What is the best way to debug the issue?

A. Use strace on the lxc-start command.

B. Use gdb on the lxc-init executable.

C. Look in /var/log messages for ixc failures.

D. Increase the log level of lxc-start with the -1 option.

Examine the output of the command:

Which two statements are true? (Choose two.)

A. The names in the first column represent cgroup subsystems that are currently attached to any cgroup hierarchy regardless of whether they are mounted or unmounted.

B. freezer, net, cls, and perf_event are group subsystems and they are attached to unmounted cgroup hierarchies. The second column represents the arbitrary system-assigned cgroup hierarchy number.

C. spuset, cpu, memory cpuacct, and blkio are cgroup subsystems and they are attached to mounted cgroup hierarchies. The second column represents the mount point of the cgroup hierarchy.

D. freezer, net_cls, and perf_event are group subsystems and they are attached to mounted cgroup hierarchies. The numbers in the second column represent the number of cgroups in each cgroup hierarchy.

E. cpuset, cpu, memory, cpuacct, and blkio are cgroup subsystems and they are attached to unmounted cgroup hierarchies. The second column represents the configuration file for the corresponding cgroup hierarchy.