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Operating System - Quiz(MCQ)
A)
MAC
B)
Linux
C)
Oracle
D)
Windows

Correct Answer : Option (C) :   Oracle


Explanation : Oracle is an RDBMS (Relational Database Management System). It is known as Oracle Database, Oracle DB, or Oracle Only. The first database for enterprise grid computing is the Oracle database.

A)
Links the program with subroutines
B)
Helps to create a flow chart of the programs
C)
Provides a layer so as to act as a user-friendly interface that enables the programmer to draw a flow chart
D)
All of the above

Correct Answer : Option (C) :   Provides a layer so as to act as a user-friendly interface that enables the programmer to draw a flow chart


Explanation : OS acts as an interface between the user.

A)
system service provider to the application programs
B)
collection of programs that manages hardware resources
C)
interface between the hardware and application programs
D)
All of the above

Correct Answer : Option (D) :   All of the above


Explanation : An Operating System acts as an intermediary between user/user applications/application programs and hardware. It is a program that manages hardware resources. It provides services to application programs.

A)
to get and execute the next user-specified command
B)
to handle the files in the operating system
C)
to provide the interface between the API and application program
D)
None of the above

Correct Answer : Option (A) :   to get and execute the next user-specified command


Explanation : The main function of a command interpreter is to get and execute the next user-specified command. Command Interpreter checks for valid command and then runs that command else it will throw an error.

A)
12
B)
8
C)
5
D)
4

Correct Answer : Option (B) :   8


Explanation : The maximum length of the filename is 8 characters in the DOS operating system. It is commonly known as an 8.3 filename.

A)
1949
B)
1950
C)
1951
D)
1952

Correct Answer : Option (B) :   1950


Explanation : The first operating system was developed in the early 1950's. It was also called a single-stream batch processing system because it presented data in groups.

A)
1970
B)
1975
C)
1980
D)
1985

Correct Answer : Option (D) :   1985


Explanation : The first MS Windows operating system was introduced in early 1985.

A)
Priority
B)
Round Robin
C)
Shortest Job First
D)
All of the above

Correct Answer : Option (D) :   All of the above


Explanation :

In Operating Systems, CPU scheduling algorithms are :

i) First Come First Served scheduling
ii) Shortest Job First scheduling
iii) Priority scheduling
iv) Round Robin scheduling
v) Multilevel Queue scheduling
vi) Multilevel Feedback Queue scheduling

All of these scheduling algorithms have their own advantages and disadvantages.

A)
.xls
B)
.bmp
C)
.txt
D)
.ppt

Correct Answer : Option (C) :   .txt


Explanation : The .txt file extension is a standard text document extension that contains the unformatted text. It is the default file extension for the notepad.

A)
Address
B)
Operation code
C)
Locator
D)
Flip-Flop

Correct Answer : Option (B) :   Operation code