1Z0-105 Online Practice Questions and Answers

Which three statements are true about an RPM SPEC file?

A. It is mandatory for building a binary RPM using rpmbuild.

B. It is a Shell script that can be used to build a binary RPM.

C. It contains metadata that will be part of a binary RPM.

D. It contains metadata and helper scripts that are required during the build process of a binary RPM.

Which two statements are true about OCFS2 heartbeats?

A. A local heartbeat is started during cluster online and stopped during cluster offline commands.

B. Only one heartbeat mode can be active at a time.

C. A local heartbeat refers to disk heartbeating on all shared devices.

D. A local heartbeat is strongly recommended for clusters having a large number of mounted file systems.

E. A list of heartbeat devices is stored in the /etc/sysctl.conf file.

F. Heartbeat mode can be configured at the file system level.

You want to create a new LUN, LUN ID =1, on a new target, target ID = 2. Inspect the current state of targets and LUNs in the output from tgt-admin –s. The output is filtered to show only target and LUN associations. [root@EDFAR9P0 init.d]# tgt-admin –s | egrep –i ‘target|lun’ Target 1: iqn.2013-03.com.example.mypc:1 LUN information: LUN: 0 LUN: 1 LUN: 2 LUN: 3

You want to add a new LUN to a new target by using the /iSCSIsharedDisk/physDisk4.img disk image file.

Which two options would you use to do this?

A. tgt-setup-lun –t 2 tgt-setup-lun –d /iSCSIsharedDisk/physDisk4.img –t 2

B. tgt-setup-lun –d /iSCSIsharedDisk/physDisk4.img –n 2

C. tgt-admin --op new \ --mode target \ --tid 2\ --targetname iqn.2013-03.com.example.mypc:2 tgt-admin --op new \

D. --mode logicalunit \ --tid 2 \ --lun 1 \ --backing-store /iSCSIsharedDisk/physDisk4.img

E. tgtadm -- op new \ --mode target \ --tid 2\ --targetname iqn.2013-03.com.example.mypc:2 \ --lun 1 \ --backing-store /iSCSIsharedDisk/physDisk4.img

F. tgt-admin –d /iSCSIsharedDisk/physDisk4.img –n 2

You run the crash utility on an Oracle Linux system after a kernel panic and use the bt -a command as shown: crash> bt a

crash> bt -a

PID: 286 TASK: c0b3a000 CPU: 0 COMMAND: "in.rlogind"

#0 [c0b3be90] crash_save_current_state at c011aed0 #1 [c0b3bea4] panic at c011367c #2 [c0b3bee8] tulip_interrupt at c01bc820 #3 [c0b3bf08] handle_IRQ_event at c010a551 #4 [c0b3bf2c] do_8259A_IRQ at c010a319 #5 [c0b3bf3c] do_IRQ at c010a653 #6 [c0b3bfbc] ret_from_intr at c0109634

#7 [c0b3bfbc] sys_select at c012f803 #8 [c0b3bfc0] system_call at c0109598 Which two statements are true about the purpose of the bt a command?

A. It shows stack traces of all tasks and threads.

B. It shows stack traces of the active task on each CPU.

C. The output of each CPU must be requested separately.

D. It may help show a relationship between panicking tasks on one CPU and tasks on other CPUs.

Examine the list of requirements for an XFS file system:

1.

Its label must be /xfs1.

2.

It must mount automatically during system startup.

3.

The user data must be stored on /dev/sdh1.

4.

The journal data must be stored on /dev/sdd1.

5.

The journal must be 4GB in size.

6.

It must contain a real-time section.

7.

Its block size must be 4096 bytes.

You execute the command:

# mkfs –t xfs –L /xfs1 –l logdev=/dev/sdd1 –d size=4g /dev/sdh1

Which requirements do you meet?

A. 1, 3, 4, 7

B. 1, 2, 3, 4, 7

C. 1, 3, 4

D. 1, 3, 4, 5, 7

E. 1, 3, 4, 5, 6, 7

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

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.

Which statement describes the hardware required to support iSCSI connections?

A. A combination of generic ethernet and/or dedicated iSCSI hardware ethernet devices can be used to successfully deploy iSCSI.

B. Either dedicated iSCSI hardware ethernet controller devices or a restricted list of generic ethernet devices (due to limitations of the iSCSI driver) are required.

C. Specific iSCSI hardware is required to operate iSCSI services in an ethernet environment.

D. Only generic ethernet devices can be used to establish an iSCSI environment.

Consider a cgroup configuration: You execute the command:

Which statement is true after executing the command?

A. The cgdelete command fails when task is running in cgroup D.

B. The cgroup D is deleted and all tasks running in it are moved to its parant cgroup automatically.

C. Any member of the wheel group is allowed to delete cgroup D.

D. The cgroup D is deleted and all tasks running in it are moved to the root cgroup automatically.

Consider the Dtrace providers made available in Oracle Linux.

Which three providers are valid Oracle Linux Dtrace providers? (Choose three.)

A. dtrace

B. lockstat

C. kernel

D. syscall

E. fbt

F. io

G. sysinfo