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Welcome to the Basic System Administration MCQs Page

Dive deep into the fascinating world of Basic System Administration with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Basic System Administration, a crucial aspect of UNIX. In this section, you will encounter a diverse range of MCQs that cover various aspects of Basic System Administration, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within UNIX.

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Check out the MCQs below to embark on an enriching journey through Basic System Administration. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of UNIX.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Basic System Administration. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Basic System Administration MCQs | Page 8 of 10

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Q71.
A system call is a routine built into the kernel and performs a basic function.

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q72.
When we execute a C program, CPU runs in ____ mode.

a.

user

b.

kernel

c.

supervisory

d.

system

Discuss
Answer: (a).user
Q73.
In ____ mode, the kernel runs on behalf of the user.

a.

user

b.

kernel

c.

supervisory

d.

system

Discuss
Answer: (a).user
Q74.
All UNIX and LINUX systems have one thing in common which is ____

a.

set of system calls

b.

set of commands

c.

set of instructions

d.

set of text editors

Discuss
Answer: (a).set of system calls
Q75.
The chmod command invokes the ____ system call.

a.

chmod

b.

ch

c.

read

d.

change

Discuss
Answer: (a).chmod
Q76.
For reading input, which of the following system call is used?

a.

write

b.

rd

c.

read

d.

change

Discuss
Answer: (c).read
Q77.
Which of the following system call is used for opening or creating a file?

a.

read

b.

write

c.

open

d.

close

Discuss
Answer: (c).open
Q78.
There are ___ modes of opening a file.

a.

4

b.

3

c.

2

d.

1

Discuss
Answer: (b).3
Q79.
Which of the following mode is used for opening a file in both reading and writing?

a.

O_RDONLY

b.

O_WRONLY

c.

O_RDWR

d.

O_WDR

Discuss
Answer: (c).O_RDWR
Q80.
open system call returns the file descriptor as ___

a.

int

b.

float

c.

char

d.

double

Discuss
Answer: (c).char
Page 8 of 10

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