Operating System:
Introduction, types of operating systems, Processes, Threads, Inter‐process
communication,
Concurrency, Synchronization, Deadlock, CPU scheduling, Memory management
and virtual memory.
MCQ :
QuestionID : 11316
Subject Name Linux
|
Q1. Functions defined
in the current shell are available to all the subshell
invoke from the current shell |
Correct
Answer : F
|
F
|
QuestionID : 11323
Subject Name Linux
|
Q2. OPTIND and OPTARG
are unix defined variables.
|
Correct
Answer : T
|
QuestionID : 11324
Subject Name Linux
|
Q3. All shell script
automatically get executed in the current shell.
|
Correct
Answer : F
|
QuestionID : 11330
Subject Name Linux
|
Q4. An argument to the
option cannot begin with a minu sign.
|
Correct
Answer : F
|
QuestionID : 11343
Subject Name Linux
|
Q5. if output o command
is piped to a while loop the loop is executed in
in a sub-shell |
Correct
Answer : T
|
QuestionID : 11348
Subject Name Linux
|
Q6. Usually size of
each block in Unix file system is----
|
1. 512
|
2. 1024
|
3. 2048
|
4. None
of above.
|
Correct
Answer : 2
|
QuestionID : 11350
Subject Name Linux
|
Q7. If output of a
while loop is redirected to a file then the loop
is executed in a sub-shell |
Correct
Answer : T
|
QuestionID : 11362
Subject Name Linux
|
Q8. All devices in Unix
are implemented as files.
|
Correct
Answer : T
|
QuestionID : 11368
Subject Name Linux
|
Q9. A terminal file is
always a block special file.
|
Correct
Answer : F
|
QuestionID : 11390
Subject Name Linux
|
Q10. point out the
errors if any
j=1 while [ $j -le 10 ] do echo $j j=j+1 done |
1. j=1
|
2. while
[ $j -le 10 ]
|
3.
echo $j
|
4.
j=j+1
|
Correct
Answer : 4
|
QuestionID : 11391
Subject Name Linux
|
Q11. Everything that is
displayed on your terminal is first
written to a file associated with a terminal then displayed on your terminal |
Correct
Answer : T
|
QuestionID : 11398
Subject Name Linux
|
Q12. Unix os cannot run
on which of the following Microprocessor
|
1. 8086
|
2. 80386
|
3. 80286
|
4. Pentium
|
Correct
Answer : 1
|
QuestionID : 11404
Subject Name Linux
|
Q13. Command to create
5 empty files empty1,empty2,empty3,empty4,empty5
|
1. touch
empty1,empty2,empty3,empty4,empty5
|
2. cat
empty1,empty2,empty3,empty4,empty5
|
3. Both
|
4. None
of above
|
Correct
Answer : 1
|
QuestionID : 11407
Subject Name Linux
|
Q14. Size of block in
Unix file system is
|
1. 512
bytes
|
2. 1024
bytes
|
3. 2048
bytes
|
4. Any
of above
|
Correct
Answer : 4
|
QuestionID : 11413
Subject Name Linux
|
Q15. Which of the
following is a popular terminal emulation software
|
1. VTERM
|
2. VT100
|
3. COMIT
|
4. Perl
|
Correct
Answer : 1
|
QuestionID : 11418
Subject Name Linux
|
Q16. The state of file
system is contained in
|
1. Boot
block
|
2. A
special block created by boot block
|
3. super
block
|
4. None
of above
|
Correct
Answer : 3
|
QuestionID : 11421
Subject Name Linux
|
Q17. To logout from
your terminal you
|
1. Switch
off the terminal
|
2. Press
ctrl -d or type exit
|
3. press
ctrl-Alt-Del
|
4. do
nothing it is the system administrator who would do this for you
|
Correct
Answer : 2
|
QuestionID : 11422
Subject Name Linux
|
Q18. The difference
between the commands ps -e and ps -a is
|
1. ps
-e gives detail of every process running in memory whereas ps -a gives output
for all the process that you have launched.
|
2. ps
-e gives details of every process running in memory whereas ps -a gives
details of all user processes.
|
3. No
difference,both give same output.
|
4. None
of the above.
|
Correct
Answer : 2
|
QuestionID : 11425
Subject Name Linux
|
Q19. Purpose of .exrc
file is convinient way to customize the vi environment and like all
good things you shold put it to utmost use to improve your efficiency . |
Correct
Answer : T
|
QuestionID : 11429
Subject Name Linux
|
Q20. In a=1235
a is a numeric shell variable |
Correct
Answer : F
|
QuestionID : 11431
Subject Name Linux
|
Q21. Which commands in
vi would you use to perform Block copy
|
1. :m
co p
|
2. :m,n
co p
|
3. both
of above
|
4. none
of these
|
Correct
Answer : 3
|
QuestionID : 11454
Subject Name Linux
|
Q22. variable declare
in the shell script can be displayed at the $(doller) promot
using the set command |
Correct
Answer : F
|
QuestionID : 11458
Subject Name Linux
|
Q23. expr can handle
only integers where as bc can handle both integer as well as
floats |
Correct
Answer : T
|
QuestionID : 11461
Subject Name Linux
|
Q24. Any Shell script
by default get executed in the current shell
|
Correct
Answer : F
|
QuestionID : 11470
Subject Name Linux
|
Q25. Comments can be
spilt over multiple lines if each line is preceded
by # |
Correct
Answer : T
|
QuestionID : 11481
Subject Name Linux
|
Q26. Once a job is
submited for printing using the lp command we have to remain logged in till
our file gets printed
|
Correct
Answer : F
|
QuestionID : 11486
Subject Name Linux
|
Q27. Only system
adminstrator can cancel your printing job
|
Correct
Answer : F
|
QuestionID : 11489
Subject Name Linux
|
Q28. the fol.Signal is
sent by DMA controller
|
1. HREQ
|
2. HLDA
|
3. DRQ
|
4. none
|
Correct
Answer : 2
|
QuestionID : 11491
Subject Name Linux
|
Q29. Change the
modification time of a file to mid night of 01/01/1996
|
1. touch
0101000096 filename
|
2. touch
01010096 filename
|
3. touch
0101001996 filename
|
4. touch
11000096 filename
|
Correct
Answer : 1
|
QuestionID : 11502
Subject Name Linux
|
Q30. A null variable a
can be created using
|
1. a=
|
2. a=`
`
|
3. a=``
``
|
4. All
of above
|
Correct
Answer : 4
|
QuestionID : 11503
Subject Name Linux
|
Q31. Command to convert
all capital letters in file to small case letters
|
1. dd
if=file1 of=file2 conv=lcase
|
2. dd
if=file1 of=file2 conv=smallcase
|
3. dd
if=file1 of=file2 conv=lowercase
|
4. dd
if=file1 of=file2 conv=ucase
|
Correct
Answer : 1
|
QuestionID : 11505
Subject Name Linux
|
Q32. What will be the
output:
commnand: at 6 pm wednesday next week who ctrl d output: At 6pm on wednesday of current week a list of users who have logged in at that time would be dispalyed. |
Correct
Answer : F
|
QuestionID : 11511
Subject Name Linux
|
Q33. The command cat
< file1 > file2 will copy the contents of file1
to file2 |
Correct
Answer : T
|
QuestionID : 11516
Subject Name Linux
|
Q34. The command that
Unix offers to a user to find out whether he can send messages to a
particular terminal are
|
1. finger
and who
|
2. finger
-mesg and who -T
|
3. finger
-i and who -t
|
4. finger
-i and who -T
|
Correct
Answer : 2
|
QuestionID : 11517
Subject Name Linux
|
Q35. when we are
executing a shell script the shell acts as
|
1. an
interpreter
|
2. compiler
|
3. operating
system
|
4. none
|
Correct
Answer : 1
|
QuestionID : 11521
Subject Name Linux
|
Q36. A file system can
be install at any mount point other than /mnt
|
Correct
Answer : T
|
QuestionID : 11526
Subject Name Linux
|
Q37. A single Unix file
System can be split over multiple hard Disks
|
Correct
Answer : F
|
QuestionID : 11538
Subject Name Linux
|
Q38. which is following
is NOT shell keyword
|
1. shift
|
2. readonly
|
3. unset
|
4. ls
|
Correct
Answer : 4
|
QuestionID : 11539
Subject Name Linux
|
Q39. It is neccesary to
unmount a file system before removing a floppy.
|
Correct
Answer : T
|
QuestionID : 11549
Subject Name Linux
|
Q40. Unix commands
which accept the input from standard input device and
send the output to the standard output device are called "filters". |
Correct
Answer : T
|
QuestionID : 11558
Subject Name Linux
|
Q41. Following command
is used delete all 5 bytes files from a current directory downwords
$find . -size 5c -exec rm{}\; |
Correct
Answer : T
|
QuestionID : 11559
Subject Name Linux
|
Q42. k=35
echo `[$k -eq 35 ] ``[$k-eq 50]` |
1. blank
line
|
2. dotted
line
|
3. error
|
4. none
|
Correct
Answer : 1
|
QuestionID : 11560
Subject Name Linux
|
Q43. Display all the
lines in a file which contain the word "Poem" from a file
english.txt.
You should be able to report all occurence like POem,PoEm,POEm etc.You are not allowed to use a command line option to ignore the case while searching. |
1. grep
[Pp][Oo][Ee][Mm] english.txt
|
2. grep
[p][Oo][Ee][Mm] english.txt
|
3. grep
[Pp][o][Ee][Mm] english.txt
|
4. grep
[Pp][][Ee][Mm] english.txt
|
Correct
Answer : 1
|
QuestionID : 11582
Subject Name Linux
|
Q44. the if-then-fi
instruction are loop control instruction
|
Correct
Answer : F
|
QuestionID : 11591
Subject Name Linux
|
Q45. Dameon processes
cannot be killed using the KILL command
|
Correct
Answer : T
|
QuestionID : 11592
Subject Name Linux
|
Q46. The output of the
command banner "Unix Shell Programming" would be
|
1. A
banner showing `unix`,`shell` and `programming` words display in separate
lines
|
2. A
banner showing `unix shell` in one single line
|
3. none
|
4. A
banner showing `unix shell programming` in one single line
|
Correct
Answer : 2
|
QuestionID : 11597
Subject Name Linux
|
Q47. You have already
logged in and some body sends mail to you. In such an
event when you whould receive the message `you have mail`? |
1. By
setting the variable MAILNOTIFY
|
2. By
setting the variable MAILCHECK
|
3. By
setting the variable MAILREAD
|
4. None
|
Correct
Answer : 2
|
QuestionID : 11599
Subject Name Linux
|
Q48. the priority of a
particular process can be decreased by increasing the "nice value"
of the command when it is launched.
|
Correct
Answer : T
|
QuestionID : 11601
Subject Name Linux
|
Q49. To ascertain what
are the contents of files in your system the best way would be
|
1. Do
a cat coomand on each file and find the content
|
2. Use
the command cat *
|
3. Use
the command file *
|
4. none
|
Correct
Answer : 3
|
QuestionID : 11621
Subject Name Linux
|
Q50. The daemon process
can be killed using using the kill command
|
Correct
Answer : F
|
