Download Document

LINUX
MULTIPLE CHOICE
QUESTION
Check your Knowledge
Press to Start
www.prolearninghub.com
1) STDOUT & STDERR are
used for
Point to current
terminal device
Are closed
Point to special files on
the system
None of above
www.prolearninghub.com
2) For login and logout log
we used:
A) wtmp
B) utmp
Both A and B
None of them
www.prolearninghub.com
3) Which is the core of the
operating system?
shell
kernel
command
script
www.prolearninghub.com
4) What hardware architectures
are not supported by Red Hat?
SPARC
IBM-compatipble
Alpha
Macintosh
www.prolearninghub.com
5) How many networks and nodes
per network, are allowed by the
Class B network
127 networks and
16,777,216 nodes per
network
16,384 networks and
65,534 nodes per network
2,097,152 networks and
254 nodes per network
All of above
www.prolearninghub.com
6) How could you install the file
ipchains-1.3.9-5.i386.rpm?
rpm -qip ipchains
rpm -Uvh ipchains
rpm -i ipchains*
.i386.rpm
None of the above
www.prolearninghub.com
7) How do you display your
current crontab entry?
Crontab -display
Crontab -d
List --crontab
Crontab -l
www.prolearninghub.com
8) FSF stands for:
Free Software File
File Server First
First Serve First
Free Software
Foundation
www.prolearninghub.com
9) What command do you use to
create Linux file systems?
fdisk
mkfs
fsck
None of these
www.prolearninghub.com
10) Under UNIX the key board is the
default input device and the
monitor is the default output device
True
False
www.prolearninghub.com
11) ____ directly communicate
with hardware
shells
commands
kernel
None of these
www.prolearninghub.com
12) Which one of the following is
not true about proc filesystem?
proc filesystem is a
pseudo-filesystem
proc filesystem is used as
an interface to kernel data
structures
some files in proc
filesystem allow kernel
variables to be changed
none of the mentioned
www.prolearninghub.com
13) Proc filesystem provides the
information about
processes
processer
Proxy servers
None of these
www.prolearninghub.com
14) How do you direct the shell
to execute a command in the
background?
Put an & symbol at the
end of the command
line.
Key in fg followed by the
command name.
Press Ctrl+c after you
have keyed in the
command.
Press Ctrl+d after you
have keyed in the
command.
www.prolearninghub.com
15) What is the following syntax
used forcommand 2> /dev/null
Send the output of
command to a file
called /dev/null
Discard standard error
entirely.
Append the output of
command to a file
called /dev/null
Send error messages
from command to a file
called /dev/null
www.prolearninghub.com
16) Which of the following
commands are used to display last
10 line of the file?
A) Tail filename
B) Tail 10-filename
Both A and B
None of these
www.prolearninghub.com
17) Which of the following file
responsible for storing basic
information about user like UID ,
GUI , login shell etc in ?
/etc/passwd
/etc/users
etc/shadows
None of these
www.prolearninghub.com
18) Suppose I want to achieve
above output using command,
which of the following command
would help me to achieve this?
A) date;echo "hii"
B) date && echo "hii"
Both A and B
date,echo "hii"
www.prolearninghub.com
19) To feed standard output of one
command to standard input of
another in a single shell session
IO redirection can be
used
Named pipes can be
used
The pipe operator
provided by the shell
can be used
It can not be done
www.prolearninghub.com
20) Which of the following
commands allows definition and
assignment of environment
variables under bash
env
enviro
export
satenviron
www.prolearninghub.com
21) While executing a
command, the shell
Executes it in the same
process (as shell)
Creates a child shell to
execute it
Loads a special program
to take care of the
execution
None of the above
www.prolearninghub.com
22) Which variable contains
current shell process id
$*
$?
$$
$!
www.prolearninghub.com
23) How do you create a
crontab entry?
Crontab - do
Crontab -c
Crontab -make
Crontab - create
www.prolearninghub.com
24) What command is used to display
the characteristics of a process?
au
ps
du
pid
www.prolearninghub.com
25) What command is not
used to list the files chap01,
chap02 and chap04?
ls chap*
ls chap[124]
ls - x chap0[124]
ls chap0[124]
www.prolearninghub.com
26) What command is used
with vi editor to replace text
from cursor to right
S
s
R
r
www.prolearninghub.com
27) What sign is used to back up
over typing errors in vi?
!
$
@
#
www.prolearninghub.com
28) What sign is used to erase or
kill an entire line you have typed
and start you are on a new line
(but not display a new prompt)?
!
#
@
$
www.prolearninghub.com
29) Which option of grep displays
the line number as well?
-v
-I
-n
-E
www.prolearninghub.com
30) Assuming the files fileA, fileB,
fileAB, fileBC and fileABC, exist in
a directory, which files match with
the pattern file[ABC]?
fileA, fileB and fileABC
fileABC
fileA and fileB
fileAB, fileBC and fileABC
www.prolearninghub.com
31) What will be printed for
the command below?
$ grep –c “^echo” abc
The count of lines that do
not contain the pattern
echo in file abc
The count of lines which
begin with the pattern
echo in file abc
The count of lines that
ends with the pattern
echo in file abc
None of these
www.prolearninghub.com
32) What command is used to save
the standard output in a file, as
well as display it on the terminal?
tee
grep
cat
more
www.prolearninghub.com
33) How would you switch to
virtual terminal 1?
trl+Alt+F1
Alt+F1
Ctrl+F1
Shift+Ctrl+F1
www.prolearninghub.com
34) Which of the following NIS
clients returns the name of the
NIS server used by the NIS client?
ypwhich
ypbind
ypcat
None of above
www.prolearninghub.com
35) Operating system kernel must
be located in
/
/boot
either in / or in /boot
none of the mentioned
www.prolearninghub.com
36) Which one of the following is a
mount point for a temporarily
mounted filesystem?
/mnt directory
/media directory
/dev directory
None of the mentioned
www.prolearninghub.com
37) What is /root?
Root file system
home directory of the root
user
the directory which
contains all the directories
of the filesystem
None of the mentioned
www.prolearninghub.com
38) System binaries are stored in
/sbin directory
/usr/sbin directory
/usr/local/sbin directory
All of the mentioned
www.prolearninghub.com
39) Which one of the following is
not true about proc filesystem?
proc filesystem is a
pseudo-filesystem
proc filesystem is used as
an interface to kernel data
structures
some files in proc
filesystem allow kernel
variables to be changed
None of these
www.prolearninghub.com
40) What is /proc/[PID]/root?
symbolic link that points
to the process’s root
directory
regular file which holds all
the PID of the system
root directory
does not exists in the
proc filesystem
www.prolearninghub.com
41) “ps” command uses the file
_____ to provide the information.
/proc/[PID]/stat
/proc/[PID]/smaps
/proc/[PID]/oom_score_adj
/proc/[PID]/oom_score
www.prolearninghub.com
42) Which one of the
following is not correct?
A) proc filesystem does not
contain any directory for
thread in the process
B) in multithread process
thread details will not be
available if the main thread
is already terminated
both A and B
None of the mentioned
www.prolearninghub.com
43) What is context switch?
Process switches
from user mode to
kernel mode
Process switches
from kernel mode to
user mode
Kernel switches from
one process to
another process
None of these
www.prolearninghub.com
44) Maximum number of
processes exist in Linux system ?
32768
1024
2048
16384
www.prolearninghub.com
45) Which of the following
command keep a process
running even after you
logout from your shell?
&
nohup
BG
hup
www.prolearninghub.com
46) On success fork return ______
to parent process ?
0
1
Parent process id
Child process id
www.prolearninghub.com
47) How can you navigate
around virtual consoles?
Alt+Function Key
Ctrl+Function Key
Ctrl+Alt+Del
Alt+a+w+Function Key
www.prolearninghub.com
48) What command is used
with vi editor to save file and
remain in the editing mode?
x
q!
:w
:q
www.prolearninghub.com
49) Which of the following
format of partition tables
does Linux use?
Linux
UnixWare
BSD
DOS
www.prolearninghub.com
50) To increase the response time
and throughput, the kernel
minimizes the frequency of disk
access by keeping a pool of internal
data buffer called
pooling
spooling
Buffer cache
swapping
www.prolearninghub.com
The Results