Oracle Linux 5 and 6 System Administration (1z1-100) Free Practice Test

Question 1

Which three tasks should be performed to configure a host to act as an SSH server?

A. The openssh-client package must not be installed.

B. The ssh-agent must be running.

C. The openssh-server package must be installed.

D. The sshd service must be started.

E. The openssh package must be installed.

Correct Answer: C,D,E

Question 2

Match the bash files with their correct description: (Choose the best answer.) File nameDescription
1) /.bash_historya. a list of commands to be executed when you log in
2) /.bash_logoutb. a list of commands that is executed every time you open a new shell
3) /.bash_profilec. a list of commands you have executed from a bash shell
4) /.bashrcd. a list of commands to be executed when you exit a login shell e. a list of commands executed before the current day f. a list of commands executed when a shell script has a nonzero return code

A. 1-c, 2-d, 3-b, 4-f

B. 1-e, 2-c, 3-a, 4-d

C. 1-c, 2-d, 3-a, 4-b

D. 1-c, 2-d, 3-a, 4-f

E. 1-c, 2-b, 3-d, 4-a

Correct Answer: C

Question 3

A web server on HOST01 is listening on port 80.
Examine the IPTABLES rule shown:
[root@host01 ~] # iptables -L INPUT
Chain INPUT (policy ACCEPT)
targetportoptsourcedestination
ACCEPTtcp- - anywhereanywheretcp dpt:http
Another rule is then added:
[root@host01 ~] # iptables -A INPUT -P tcp - - dport 80 -j REJECT
What is the effect of this command on subsequent attempts to access the web server on HOST01 using port
80?

A. New connection attempts timeout.

B. New connection attempts are refused and the client informed of the refusal.

C. New connection attempts succeed until a reload of the firewall rules.

D. New connection attempts always succeed.

Correct Answer: A

Question 4

Which three methods might be used to change kernel parameters, thereby modifying the values for running system?

A. Using the echo command to write values to specific files in the /proc/sys directory

B. Using the echo command to write values to specific files in the /sys directory

C. Issuing the sysct1 -w command to write values to specific files in the /sys directory

D. Adding to or modifying parameters in /etc/sysct1.conf and issuing the sysct1 -p command

E. Issuing the sysct1 -w command to write values to specific files in the /proc/sys directory

Correct Answer: A,D,E

Question 5

Examine some of the contents of the /boot/grub/grub.com file from an Oracle Linux system:
Default=0
Timeout=5
Splashimage=(hd0, 0)/grub/splash.xpm.gz
Hiddenmenu
Title Oracle Linux Server (2.6.39-100.0.12.16uek.x86_64)
Root (hd0, 0)
Kernet /vmlinuz-2.6.39-100.0.12.e16uek.x86_64 ro root=UUIP=a4b6049b-9aa1-44b4-87cf-aebb17alcdf9 rd_NO_LUKS re_NO_LVM rd_NO_DM LANG=en_US.UTF-8 SYSFONT=1atarcycreheb-sun16 KEYBOARDTYPE=PC KEYTABLE=us rhgb quiet numa=off Initrd /initramfs-2.6.39-100.0.12.e16uek.x86_64.img Title Oracle Linux Server (2.6.32-131.0.15.e16.x86_64) Root (hd0, 0) Kernel /vmlinuz-2.6.32-131.0.15.e16.x86_64 ro root=UUIS=a4b6049b-9aa1-44b4-87cf-aebb17a1cdf9 rd_NO_LUKS rd_NO_LVM rd_NO_LVM re_NO_MD rd_NO_DM LANG=en_UD.UTF-8 SYSFONT=latarcyheb-sun16 KEYBOARDTYPE=PC KEYTABLE=us Crashkernel=auto rhgp quiet numa = off Initrd /initramfs-2.6.32-131.0.15.e16.x86_64.img Which three statements are true about the behavior and configuration of GRUB on this system?

A. Because there is an Unbreakable Enterprise Kernel installed, it must be the default kernel listed as shown by the default=0 directive.

B. (hd0, 0) represents the first partition on the first drive detected by the BIOS.

C. (hd0, 0) represents the first partition on device /dev/hd0.

D. The hiddenmenu directive hides the GRUB menu only for 5 seconds after which it becomes visible again.

E. Each kernel must have an initramfs that matches the version of the kernel.

F. The root directive specifies an initial root filesystem, allowing access to block device modules to mount the real root filesystem on disk.

G. The initrd directive specifies the initamfs, an initial root filesystem in RAM, allowing access to block device modules to mount the real root filesystem.

Correct Answer: C,F,G

Question 6

Which two statements are true about an RPM package? (Choose two.)

A. An RPM can be installed from a local filesystem or a remote repository using the rpm command

B. In general, it is possible to have multiple versions of the same RPM package installed on a single system

C. a RPM package can contain programs, documentation installation procedures, source files, and metadata about itself

D. a source RPM is machine architecture dependent

E. a binary RPM contains compiled programs as well as the source code of these programs

Correct Answer: A,D

Question 7

Which three statements are correct about NFSV4?

A. The UID and GID for a particular user must be the same on both client and server to avoid file ownership problems.

B. RPC.IDMAPD is used to map a UID to its username and a GID to its group name and vice versa.

C. It relies on the LOCKD and RPC.STATD daemons to perform file locking.

D. It uses a single port (2049) for all client/server communications.

E. It has support for filesystem quotas.

Correct Answer: A,B,E

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Question 8

Which four statements are true about the proc and sysfs filesystem?

A. The proc filesystem contains information about the installer parameters.

B. The proc filesystem contains information about CPUs.

C. The sysfs filesystem contains information about CPUs.

D. The sysfs filesystem contains information about processes.

E. The sysfs filesystem contains information about memory.

F. The proc filesystem contains information about memory.

Correct Answer: A,B,C,F

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Question 9

The dailyrun.sh Bash shell script has the permissions as listed here:
-rw-r- -r- - 1 hr hradmin 8 Apr 2 06:57 dailyrun.sh
Which three methods will be successful at avoiding permissions errrors when attempting to run the script?
(Choose three.)

A. executing the shell script from the shell prompt using the bash command

B. executing the shell script using an alias created with the alias dailyrun='bash dailyrun.sh'

C. executing the shell script from the shell prompt using the sh command

D. executing the shell script using an alias created with the alias dailyrun=dailyrun.sh

E. executing the shell script from within a shell function using an alias created with the alias dailyrun='dailyrun.sh'

Correct Answer: A,B,C

Question 10

Which four are among the many components included in the oracle Linux distribution?

A. Documentation

B. Oracle Database Server 11g

C. Red Hat compatible kernel

D. Oracle WebLogic Server 11g

E. Apache Web Server

F. X Windowing system

Correct Answer: A,C,E,F

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Oracle Linux 5 and 6 System Administration (1z1-100) Free Practice Test