PPSC Computer Science Topic 19 MCQ's Test Preparation

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MCQ's Test For PPSC Computer Science Topic 19 Operating System

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PPSC Computer Science Topic 19 Operating System

00:00
Question # 1

Remote computing services involves the use of.

Question # 2

A thread is.

Question # 3

Which command is used to copy files.

Question # 4

File record length

Question # 5

What is the meaning of SVR 4

Question # 6

Which command is used to determine the path of an executable file.

Question # 7

Which command is LINUX is concerned with backup.

Question # 8

Belady anomaly occurs in

Question # 9

Four necessary conditions for dead lock are none pre emption circular wait and

Question # 10

Which command in LINUX is used for description any command.

Question # 11

In the shell , by default all variables are considered and stored as.

Question # 12

Reference bit is used for

Question # 13

In which of the following usually a front end processor is used.

Question # 14

File inode number can be viewed by.

Question # 15

Which of following need a device driever.

Question # 16

The system calls in UNIX is written using which language.

Question # 17

How applications communicates with kernel.

Question # 18

Dirty bit is used ot show

Question # 19

What is property of UNIX.

Question # 20

Solaris is product of.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which command gives the first byte where the difference is in the file 1 & file2
A. Diff
B. differ
C. Cmp
D. Compare
2 Which of following is not an advantage of multiprogramming.
A. Increased through out
B. Shorter response time
C. Ability to assign priories of jobs
D. Decreased system overload
3 Which of following need a device driever.
A. Cache
B. Disk
C. Main memory
D. Registers
4 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
5 Belady anomaly occurs in.
A. LIFO
B. FIFO
C. LRU
D. NRU
6 Spooling most beneficial where
A. Jobs are I/O bound
B. Jobs are CPU bound
C. Jobs are evenly divided as I/O bound are CPU bond
D. All of above
7 Which technique is used by operating systems to execute several program concurrently by switching back and forth.
A. Partitioning
B. Multitasking
C. Windowing
D. Paging
8 In which of the following usually a front end processor is used.
A. Virtual storage
B. Time sharing
C. Multi programming
D. Multi heading
9 In the shell , by default all variables are considered and stored as.
A. Integer
B. String
C. Float
D. Chracter
10 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t

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