A directory is a type of file.

True

False

Which command would a user type on the command line to find out the current directory in the directory tree?

pd

cd

where

pwd

Which of the following is an absolute pathname? $($Choose all that apply.$)$

C:$\backslash$myfolder$\backslash$resume

resume

$/$home$/$resume

C:home$/$resume

A special device file is used to $\_\_\_\_\_.$

enable proprietary custom$-$built devices to work with Linux

represent hardware devices

keep a list of device settings specific to each individual user

do nothing in Linux

If a user$$s current directory is $/$home$/$mary$/$project$1,$ which command could they use to move to the etc directory directly under the root?

cd $..$

cd etc

cd $/$etc

cd $\backslash$etc

After typing the ls $$a command, you notice a file whose filename begins with a period $(.).$ What does this mean?

It is a binary file.

It is a system file.

It is a file in the current directory.

It is a hidden file.

After typing the ls $$F command, you notice a filename that ends with an $*($asterisk$)$ character. What does this mean?

It is a hidden file.

It is a linked file.

It is a special device file.

It is an executable file.

The vi editor can function in which two of the following modes? $($Choose both that apply.$)$

Command

Input

Interactive

Insert

The less command offers less functionality than the more command.

True

False

Which command searches for and displays any text contents of a binary file?

text

strings

od

less

How can a user switch from insert mode to command mode when using the vi editor?

Press the Ctrl$+$Alt$+$Del keys simultaneously.

Press the Del key.

Type a : character.

Press the Esc key.

If $$resume$$ is the name of a file in the home directory off the root of the filesystem and your present working directory is home, what is the relative name for the file named resume?

$/$home$/$resume

$/$resume

resume

$\backslash$home$\backslash$resume

What will the following wildcard expression return: file$[$a$-$c$]?$

filea$-$c

filea, filec

filea, fileb, filec

fileabc

What will typing q$!$ at the : prompt in command mode do when using the vi editor?

Quit as no changes were made.

Quit after saving any changes.

Nothing because the $!$ is a metacharacter.

Quit without saving any changes.

A user types the command head $/$poems$/$mary$.$ What will be displayed on the terminal screen?

The first line of the file mary

The first $10$ lines of the file mary

The header for the file mary

The first $20$ lines of the file mary

The tac command $\_\_\_\_\_.$

displays the contents of a file in reverse order, last line first and first line last

displays the contents of hidden files

displays the contents of a file in reverse order, last word on the line first and first word on the line last

is not a valid Linux command

How can you specify a text pattern that must be at the beginning of a line of text using a regular expression?

Precede the string with a $/.$

Follow the string with a $\backslash .$

Precede the string with a $$.$

Precede the string with a $^.$

Linux has only one root directory per directory tree.

True

False

Using a regular expression, how can you indicate a character that is not an a or b or c or d$?$

$[^$abcd$]$

not $[$a$-$d$]$

$[!$a$-$d$]$

$!$a$-$d

A user typed the command pwd and saw the output: $/$home$/$jim$/$sales$/$pending$.$ How could that user navigate to the $/$home$/$jim directory?

cd $..$

cd $/$jim

cd $../..$

cd $./.$