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Linux Foundation LFCS - Linux Foundation Certified System Administrator

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Page: 3 / 8
Total 260 questions

Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.)

A.

New name servers may be added to the resolver configuration.

B.

Network interfaces may become active or inactive.

C.

The routing table may change.

D.

IP addresses may change.

E.

The system's host name may change.

When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this?

A.

debug

B.

lsof

C.

nessus

D.

strace

E.

traceroute

Instead of supplying an explicit device in /etc/fstab for mounting, what other options may be used to identify the intended partition? (Choose TWO correct answers.)

A.

FIND

B.

ID

C.

LABEL

D.

NAME

E.

UUID

Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

A.

ifconfig

B.

dig

C.

netstat

D.

route

E.

trackroute

Which of the following files, located in the user home directory, is used to store the Bash history?

A.

.bash_history

B.

.bash_histfile

C.

.history

D.

.bashrc_history

E.

.history_bash

Which variable defines the directories in which a Bash shell searches for executable commands?

A.

BASHEXEC

B.

BASHRC

C.

PATH

D.

EXECPATH

E.

PATHRC

Which of the following settingsfor umask ensures that new files have the default permissions -rw-r----- ?

A.

0017

B.

0640

C.

0038

D.

0027

What is the purpose of the iconv command?

A.

It converts bitmap images from one format to another such as PNG to JPEG.

B.

It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS).

C.

It displays additional meta information from icon files ending in .ico.

D.

It changes the mode of an inode in the ext4 file system.

E.

It converts files from one character encoding to another.

Which of the following commands lists all currently installedpackages when using RPM package management?

A.

yum --query --all

B.

yum --list --installed

C.

rpm --query --all

D.

rpm --list –installed

What two character sequence is present at the beginning of an interpreted script? (Please specify the TWO correct characters only)