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NOS 120 EXAM QUESTIONS AND ANSWERS
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NOS 120 EXAM QUESTIONS ANDANSWERS
cat > Meeting - ANSWER Your boss drops by your office in a hurry to
ask you to attend a meeting at 10:30 on Friday morning and you can't
find a pen to make a note as a reminder. What Linux command can you
use to make a quick note to store in a file called Meeting?
cal - ANSWER Before you make the note in Question 1, you decide to
determine Friday's date, so that you can include it in your note. What
Linux command can you use to quickly determine Friday's date?
Ctrl+b - ANSWER While you are typing a command, you misspell the
name of a file you want to specify with the command. Which of the
following command line key combinations enables you to go back and fix
your error?
passwd - ANSWER You haven't changed your user account password
for several months and now decided to create a new password. Which of
the following commands should you use?
man cat - ANSWER You have forgotten the purpose of the -n option in
the cat command. Which of the following can you enter at the Linux
command line to find out what the -n option does when used with cat?
System V - ANSWER Which of the following is the UNIX distribution
originally developed through AT&T Bell Labs?
Bash shell - ANSWER Which shell is used by Linux as the default
command interpreter?
cat >> Annual_Report - ANSWER You need to type in a line of text to
the end of a file called Annual_Report. Which of the following commands
enables you to add the text?
,Log in remotely to another computer on a network. - ANSWER SSH can
be used to ___________________.
The administrative account that has complete access to UNIX/Linux
system. - ANSWER This is your first day on the job as a Linux server
administrator and your boss gives you the password for root. What is
root?
tail -n 2 project - ANSWER In your document files, you often put the date
you created the file and the date you last modified it in the last two lines
of the file. What command can you use to look at only the last two lines
of the file called, project?
q - ANSWER You are working with a new colleague who has entered
the man command, but who does not know how to end the man session
to return to the regular command prompt. What keystrokes do you show
your colleague to end the man session? (Choose the best option .)
-less
-cat - ANSWER Which of the following are examples of Linux
distributions? (Choose all that apply.)
The current logged in user - ANSWER When you enter the who
command, what information do you see? (Choose all that apply.)
clear - ANSWER You have been entering lots of commands and now
your terminal window is cluttered will all kinds of activity. What command
can you use to clear your window of the clutter?
Use a GUI menu option to log out or enter an appropriate command for
the shell you are using. such as exit or logout (if there is no GUI desktop
in use). - ANSWER You share a Linux computer with a coworker. What
is the best way to exit your UNIX or Linux session when you are done?
peer-to-peer network. - ANSWER You work at a law firm with eight other
people. All of the eight computers on the firm's network use wireless
connections to communicate with one another without a server. This is
an example of which of the following?
, -a mainframe computer
-a desktop PC
-a server
-a workstation - ANSWER On which of the following types of computers
might you find a UNIX or Linux operating system? (Choose all that
apply.)
Press the up key one time. - ANSWER You're in a hurry and have just
executed a command to print the contents of a file; and you decide you
want another copy of the printout. What key sequence can you use to
repeat the last command, which was used to print the file?
date -u - ANSWER Your international company is scheduling a meeting
among managers in Canada, the United States, Spain, Sweden, and
Hong Kong on the basis of Greenwich Mean Time (GMT). What
command enables you to display the current time in GMT?
The more command enables you to view a file's contents by scrolling
down. - ANSWER How would you describe the purpose of the more
command?
Telnet can be used to connect a UNIX, Linux, or Windows PC to a
remote computer. - ANSWER What is the purpose of Telnet?
Linux is case sensitive, so to display a calendar you must use the cal
command and not Cal. - ANSWER You enter Cal on the command line
to view a calendar but only see an error message. Explain why you got
the error message.
To run more than one command on a single line use the ; (semicolon)
character to separate each command. - ANSWER How you can run
more than on command on a single line?
Linux supports both the UDF and iso9660 file systems for CD and DVD
use. - ANSWER Your company is discussing plans to migrate desktop
and laptop users to Linux. One concern raised by the users is whether
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