CompTIA XK0-005 CompTIA Linux+ Exam Online Training

Question #1

An administrator accidentally deleted the /boot/vmlinuz file and must resolve the issue before the server is rebooted.

Which of the following commands should the administrator use to identify the correct

version of this file?

A . rpm -qa | grep kernel; uname -a
B . yum -y update; shutdown -r now
C . cat /etc/centos-release; rpm -Uvh –nodeps
D . telinit 1; restorecon -Rv /boot

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Question #2

A cloud engineer needs to change the secure remote login port from 22 to 49000.

Which of the following files should the engineer modify to change the port number to the desired value?

A . /etc/host.conf
B . /etc/hostname
C . /etc/services
D . /etc/ssh/sshd_config

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Question #3

A new file was added to a main Git repository. An administrator wants to synchronize a local copy with the contents of the main repository.

Which of the following commands should the administrator use for this task?

A . git reflog
B . git pull
C . git status
D . git push

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Question #3

A new file was added to a main Git repository. An administrator wants to synchronize a local copy with the contents of the main repository.

Which of the following commands should the administrator use for this task?

A . git reflog
B . git pull
C . git status
D . git push

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Question #5

0.2.25 on port 3128.

Which of the following commands will accomplish this task?

A . iptables -t nat -D PREROUTING -p tcp –sport 80 -j DNAT – -to-destination 192.0.2.25:3128
B . iptables -t nat -A PREROUTING -p top –dport 81 -j DNAT C-to-destination 192.0.2.25:3129
C . iptables -t nat -I PREROUTING -p top –sport 80 -j DNAT C-to-destination 192.0.2.25:3129
D . iptables -t nat -A PREROUTING -p tcp –dport 80 -j DNAT C-to-destination 192.0.2.25:3128

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Question #6

Developers have requested implementation of a persistent, static route on the application server. Packets sent over the interface eth0 to 10.0.213.5/32 should be routed via 10.0.5.1.

Which of the following commands should the administrator run to achieve this goal?

A . route -i etho -p add 10.0.213.5 10.0.5.1
B . route modify eth0 +ipv4.routes "10.0.213.5/32 10.0.5.1"
C . echo "10.0.213.5 10.0.5.1 eth0" > /proc/net/route
D . ip route add 10.0.213.5/32 via 10.0.5.1 dev eth0

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Question #7

A user is asking the systems administrator for assistance with writing a script to verify whether a file exists. Given the following:

Which of the following commands should replace the <CONDITIONAL> string?

A . if [ -f "$filename" ]; then
B . if [ -d "$filename" ]; then
C . if [ -f "$filename" ] then
D . if [ -f "$filename" ]; while

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Question #8

DRAG DROP

As a Systems Administrator, to reduce disk space, you were tasked to create a shell script that does the following:

Add relevant content to /tmp/script.sh, so that it finds and compresses rotated files in /var/log without recursion.

INSTRUCTIONS

Fill the blanks to build a script that performs the actual compression of rotated log files.

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