Group A Computer Science Chapter Wise MCQs:

The Central Superior Services (denoted as CSS; or Bureaucracy) is an elite permanent bureaucratic authority, and the civil service that is responsible for running the civilian bureaucratic operations and government secretariats and directorates of the Cabinet of Pakistan.

Central Superior Services (CSS)->Group A->Computer Science MCQs

Central Superior Services (CSS) Question:

By ethernet cable we send a signalin which form?

A: compressed data
B: digital
C: analog
D: all are correct
Answer: A
naqib

Central Superior Services (CSS) Question:

SQL is a/an

A: Unstructured language
B: Structured language
C: Object oriented language
D: Software
Answer: B

Central Superior Services (CSS) Question:

Different attributes in two different tables having same name are referred to as

A: Acronym
B: Synonym
C: Homonym
D: Mutually exclusive
Answer: C

Central Superior Services (CSS) Question:

Which key combination is used to run C program

A: Alt+F9
B: Ctrl+S
C: Alt+F5
D: Ctrl+F9
Answer: D

Central Superior Services (CSS) Question:

The instructions that are given to the compiler before the beginning of actual program are

A: C statements
B: Preprocessor directive
C: Linking instructions
D: C instructions
Answer: B

Central Superior Services (CSS) Question:

Which of the database objects allows to extract specific information from tables

A: Queries
B: Forms
C: Reports
D: Records
Answer: A

Central Superior Services (CSS) Question:

Which of the following components is used to convert first .c to first .exe?

A: Compiler and header
B: Header and linker
C: Compiler and linker
D: Compiler only
Answer: C

Central Superior Services (CSS) Question:

A space in computer memory set aside for some data that can be changed is called

A: Variable
B: Constant
C: Integer
D: Floating Point
Answer: A

Central Superior Services (CSS) Question:

C language was developed by

A: Van Neumann
B: Dennis Ritchie
C: Charles Babbage
D: John Backus
Answer: B

Central Superior Services (CSS) Question:

An attribute in database is also known as

A: Tuple
B: Relation
C: Row
D: Field
Answer: D

Central Superior Services (CSS) Question:

A primary key that consists of more than one attribute is called a

A: Foreign key
B: Composite key
C: Multivalued key
D: Global key
Answer: B

Central Superior Services (CSS) Question:

Which of the following protocols is used by World Wide Web(www)

A: TCP/IP
B: Ethernet
C: FTP
D: HTTP
Answer: D

Central Superior Services (CSS) Question:

______ virus is a polymorphic virus. Polymorphic means, changes nature with passage of time

A: Redlof
B: Torjan Horse (
C: Chernobal
D: Logic Bomb
Answer: A

Central Superior Services (CSS) Question:

Which of the following memories can be re-written by using electrical devices

A: PROM
B: ROM
C: EEPROM
D: EPROM
Answer: C

Central Superior Services (CSS) Question:

The process to convert analog signals into digital signals is called

A: Modulation
B: Demodulation
C: Digitization
D: Conversion
Answer: B

Central Superior Services (CSS) Question:

An important property of fiber optic is

A: Refraction
B: Reflection
C: Interface
D: None Of These
Answer: A

Central Superior Services (CSS) Question:

Data is transmitted block-by-block in ___________ transmission

A: Digital
B: Analog
C: Synchronous
D: Asynchronous
Answer: C

Central Superior Services (CSS) Question:

Which one is the Bottom-most layer of OSI model

A: Data link
B: Physical
C: Network
D: Transport
Answer: B

Central Superior Services (CSS) Question:

Which of the following is LAN protocol

A: Ethernet
B: ARCnet
C: Token Ring
D: All of the above
Answer: D

Central Superior Services (CSS) Question:

Which of the following standards were developed without any formal planning

A: De Facto
B: De Jure
C: ISO
D: Both A and B
Answer: A

Central Superior Services (CSS) Question:

The software used for workgroup computing is called

A: Shareware
B: Freeware
C: Groupware
D: Both A and B
Answer: C

Central Superior Services (CSS) Question:

DRAM stands for

A: Digital Random Access Memory
B: Dynamic Random Access Memory
C: Digital Read Access Memory
D: Dynamic Read Access Memory
Answer: B
Amjad

Central Superior Services (CSS) Question:

The dots that compose the image of a digital photograph are called

A: Points
B: Resolution Points
C: Digital Points
D: Pixels
Answer: D
Amjad

Central Superior Services (CSS) Question:

Internet surfing is an example of

A: Half duplex
B: Simplex
C: Full duplex
D: None Of These
Answer: A
Amjad

Central Superior Services (CSS) Question:

Which register stores the result of ALU operations

A: Data Register
B: Instruction Register
C: Data Address Register
D: Accumulator Register
Answer: D
Amjad

Central Superior Services (CSS) Question:

A collection of rules for writing programs in a programming language is known as

A: Syntax
B: Program logic
C: Program Standards
D: None Of These
Answer: A
Amjad

Central Superior Services (CSS) Question:

Which one connects two similar network segments

A: Router
B: Node
C: Gateway
D: Bridge
Answer: D
Amjad

Central Superior Services (CSS) Question:

What is a diagrammatic way of representing the relationship between the entities in a database

A: Flowchart
B: ERD
C: DFD
D: Algorithm
Answer: B
Amjad

Central Superior Services (CSS) Question:

Which transmission allows data to travel in both directions but only one direction at a time

A: Simplex
B: Full duplex
C: Half duplex
D: Reverse
Answer: C
Amjad

Central Superior Services (CSS) Question:

What operation are used to evaluate compound conditions

A: Arithmetic Operators
B: Logical Operators
C: Relational Operators
D: Assignment Operators
Answer: B
Amjad