LINUX EXAM

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Flashcards	70
Language	English
Category	Computer Science
Level	Other
Created / Updated	31.05.2016 / 06.06.2022
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One of the jobs of the kernel is to:

Manage the system’s resources

Turn source code into machine code

Load the operating system after the computer is turned on

Transfer mail from one machine to another

Unix is:

(choose two)

An operating system

A type of hardware

A trademark

A distribution of Linux

A text editor

Linux is written in:

.NET

C++

Java

Perl

Source code refers to:

The version of a program that the computer runs on the CPU

The license that dictates how you may use and share the software

The interface that software uses to talk to the kernel

A human readable version of computer software

What is the standard option to provide a command line program to view its documentation?

–info

–doc

–help

-h

The command man -k is the same as the command apropos.

True or False?

True

False

The whatis command is the same as man -w.

True

False

The directory where additional documentation for software packages most likely can be found is:

/var/lib/doc

/usr/software/doc

/usr/share/doc

/var/share/doc

Hidden files are files that begin with what character?

A plus (+)

A dash (-)

A period (.)

An asterisk (*)

The top-level directory on a Linux system is represented as:

/root

/home

Is the following path absolute or relative?

/etc/ppp

Relative

Absolute

Is the following path absolute or relative?

sysadmin/Documents

Relative

Absolute

Compression on a file works by:

Removing the high order bit from each byte

Consolidating multiple files into one

Removing redundant information

Storing most of the data on removable media and just leaving a pointer

Eliminating gaps within the file

Lossy compression:

(choose three)

Is often used with documents

Decompresses to an identical version as the original

Sacrifices some quality

Usually results better compression than lossless

Is often used with images

You type gzip myfile.tar. What happens?

(choose two)

myfile.tar.gz holds a compressed version of myfile.tar

An error; you forgot to pass the name of the output file

An error; you forgot to specify the file with –f

myfile.tar is unarchived into the current directory

myfile.tar is removed

Error messages generated by commands are sent where by default?

STDIN

Log files

STDERR

STDOUT

A successful command will print output to STDOUT.

True or False?

True

False

Which of the following commands will direct error messages to the file, error.log?

(choose one)

ls /root > error.log

ls /root >> error.log

ls /root 2> error.log

ls /root $> error.log

A pipe allows you to…

…send the same input to multiple commands.

…send the output of one command to another.

…send the output of a command to a file.

…type multiple commands at one prompt.

Channel 2 is:

STDERR

STDIN

STDALL

STDOUT

The echo command:

Tests a variable for duplication

Duplicates the input stream to the output stream

Is used for variable assignment

Is used to output text to the console

Copies variables from one to another

A file begins with #!/bin/csh. This means:

C Shell compatibility mode is enabled

Running the script will invoke /bin/csh to interpret the rest of the file

The operator should not be using /bin/csh

This is a Perl script

Nothing, this is a comment

Which are appropriate editors for writing shell scripts?

(choose two)

nano

LibreOffice Writer

/bin/bash

Firefox

Most of nano’s commands take the form of:

Escape followed by another character

Mouse clicks

The F1 through F12 function keys

Alt and another character

Control and another character

What does this shell script do?

FOO=/tmp/foo

if [ ! –d $FOO ]; then

mkdir $FOO

Nothing, since there is a problem with the conditions in the if statement

Makes the /tmp/foo directory if a file by that name exists

Creates /tmp/foo if it does not exist

Creates /tmp/foo and raises an error if there is a problem

Outputs a message to the screen

Which of the following are valid CPU types for Intel-based platforms?

(choose two)

48 bit

24 bit

64 bit

32 bit

64 bit platforms can access more memory than 32 bit platforms.

True or False?

True

False

What does the acronym RPM mean?

Relocate Package Manager

Return Package Management

RPM Package Management

Recursive Package Manager

One way to install new software on a Linux system is to use a package management system.

True or False?

True

False

When you execute the dmesg command, the system displays messages that are generated by the kernel.

True or False?

True

False

Which of the following are package management commands for distributions with software distributed in files ending in .deb?

(choose three)

rpm

apt-get

dpkg

aptitude

Which of the following are package management commands for distributions with software distributed in files ending in .rpm?

(choose three)

yum

apt-get

rpm

yumex

Which of the following would be considered a host?

A printer attached to the network via an IP address

A CDROM

The computer’s hard drive

A network cable

A service is…

…a file that contains configuration information.

…another name for a computer’s hostname.

…a feature provided by one computer to another.

…like an IP address.

A network packet contains …

(choose two)

…the IP address of the destination machine.

…the name of the router.

…a hard drive partition.

…the IP address of the source machine.

Only servers have hostnames.

True or False?

True

False

Which files contain user account information?

(choose two)

/etc/passwd

/etc/shadow

/etc/group

Which user can view the /etc/shadow file?

The root user

No users

Any member of the password group

All users

Which command will display the UID, GID and groups your current user belongs to?

whoami

who

about

Each user belongs to at least one group.

True or False?

True

False

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