R4RIN – MCQs, Mock Tests | CSS[FPSC-U.S. Civil Service Commission]-USA [USA] Current Affairs 2021 Computer Set 16

An important property of fiber optic is

1. Refraction
2. Reflection
3. Interface
4. None Of These

✅ Correct Answer: 1

The process to convert analog signals into digital signals is called

1. Modulation
2. Demodulation
3. Digitization
4. Conversion

✅ Correct Answer: 2

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

1. PROM
2. ROM
3. EEPROM
4. EPROM

✅ Correct Answer: 3

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

1. Redlof
2. Torjan Horse
3. Chernobal
4. Logic Bomb

✅ Correct Answer: 1

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

1. TCP/IP
2. Ethernet
3. FTP
4. HTTP

✅ Correct Answer: 4

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

1. Foreign key
2. Composite key
3. Multivalued key
4. Global key

✅ Correct Answer: 2

An attribute in database is also known as

1. Tuple
2. Relation
3. Row
4. Field

✅ Correct Answer: 4

C language was developed by

1. Van Neumann
2. Dennis Ritchie
3. Charles Babbage
4. John Backus

✅ Correct Answer: 2

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

1. Variable
2. Constant
3. Integer
4. Floating Point

✅ Correct Answer: 1

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

1. Compiler and header
2. Header and linker
3. Compiler and linker
4. Compiler only

✅ Correct Answer: 3

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

1. Queries
2. Forms
3. Reports
4. Records

✅ Correct Answer: 1

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

1. C statements
2. Preprocessor directive
3. Linking instructions
4. C instructions

✅ Correct Answer: 2

Which key combination is used to run C program:

1. Alt+F9
2. Ctrl+S
3. Alt+F5
4. Ctrl+F9

✅ Correct Answer: 4

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

1. Acronym
2. Synonym
3. Homonym
4. Mutually exclusive

✅ Correct Answer: 3

SQL is a/an

1. Unstructured language
2. Structured language
3. Object oriented language
4. Software

✅ Correct Answer: 2

The loop which never ends is called:

1. Infinite loop
2. Running loop
3. Continuous loop
4. Nested loop

✅ Correct Answer: 1

Another term for a conditional operator is:

1. Binary
2. Iteration
3. Selective
4. Ternary

✅ Correct Answer: 4

The total number of keywords in C are:

1. 60
2. 42
3. 32
4. 50

✅ Correct Answer: 3

What does CIM stand for?

1. Computer Integrated Manufacturing
2. Copy In Memory
3. Computer International Management
4. Computer Intel Marketing

✅ Correct Answer: 1

Which register normally functions as a 16-bit counter that controls the sequence in which the instructions are fetched from memory?

1. PC
2. IR
3. DR
4. DAR

✅ Correct Answer: 1

Access time for most of memories is measured in:

1. Microseconds
2. Milliseconds
3. Nanoseconds
4. Megahertz

✅ Correct Answer: 3

A database consists of various components called:

1. Tools
2. Properties
3. Entities
4. Objects

✅ Correct Answer: 4

Which of the following terms is related to the features of cascading deletion?

1. Data integrity
2. Data redundancy
3. Referential integrity
4. Indexing

✅ Correct Answer: 3

ATM stands for?

1. Automatic Talking Machine
2. Automatic Teller Machine
3. Analog Teller Machine
4. Automatic Ticketing Machine

✅ Correct Answer: 2

Who is known as Father of Computer Science ?

1. Charles Babbage
2. Howard Aiken
3. Dr.Herman Hollerith
4. Blaise Pascal

✅ Correct Answer: 1

One of the first recognized calculating device was?

1. Abacus
2. Analytical engine
3. Difference engine
4. None of these

✅ Correct Answer: 1

Pentium II is a __________ generation computer.

1. second
2. third
3. fourth
4. fifth

✅ Correct Answer: 3

The first computer that used vacuum tubes was?

1. Mark I
2. ENIAC
3. EDVAC
4. UNIVAC

✅ Correct Answer: 2

Which of the following is not a pointing device?

1. Mouse
2. Joystick
3. Trackball
4. None of these

✅ Correct Answer: 2

The number of read/write heads for a hard disk of four platters are

1. 4
2. 6
3. 8
4. 16

✅ Correct Answer: 3

Which of the following is a 16-bit code?

1. BCD
2. Unicode
3. ASCII
4. EBCDIC

✅ Correct Answer: 2

Boolean algebra is also known as?

1. Logical algebra
2. Code algebra
3. Switching algebra
4. Digital algebra

✅ Correct Answer: 3

The command that is not present on edit menu?

1. Font
2. GoTo
3. Find
4. Ctrl+z

✅ Correct Answer: 1

First generation language uses?

1. Pseudo code
2. Binary code
3. Mnemonics code
4. Decimal code

✅ Correct Answer: 2

In which of the flowchart symbols, the statement IS A > B is placed?

1. Connector
2. Rectangular
3. Parallelogram
4. Diamond

✅ Correct Answer: 4

Name the error which you think to exist in the formula C=C*D/C.

1. Logical
2. Syntax
3. Execution
4. None of these

✅ Correct Answer: 4

Which of the following statements transfers control unconditionally?

1. GOTO
2. FOR NEXT
3. IF THEN
4. ON GOTO

✅ Correct Answer: 1

The statement to reserve memory locations for an array M arranged in 12 columns and 20 rows may be ?

1. DIM(12,20)
2. DIMM(20,12)
3. M(240)
4. DIMM(12,20)

✅ Correct Answer: 2

On execution of PRINT FIX(-6.83),the output will be ?

1. 6
2. 6.83
3. -6
4. -7

✅ Correct Answer: 3

In BASIC LOG function refers to natural logarithm have Base ?

1. 2
2. 10
3. 5
4. e

✅ Correct Answer: 4

An 8-bit address bus can address a memory of ?

1. 1 Byte
2. 8 Bytes
3. 256 bits
4. 256 Bytes

✅ Correct Answer: 4

The number of colors a CGA monitor displays are ?

1. 4
2. 16
3. 64
4. 256

✅ Correct Answer: 1

The radix of a computerized version of number (+0.66E-4) is ?

1. 4
2. 6
3. 2
4. 8

✅ Correct Answer: 3

The programs which are permanent and stored in ROM are known as ?

1. Utility Programs
2. Firmware
3. System softwares
4. None of these

✅ Correct Answer: 2

UNIVAC stands for ?

1. Universal Automatic Computer
2. Universal Array Computer
3. Unvalued Automatic Computer
4. Unique Automatic Computer

✅ Correct Answer: 1

File compression utilities can reduce the file size by

1. 10%
2. 60%
3. 80%
4. 100%

✅ Correct Answer: 3

The NT in Windows NT stands for ?

1. Not Tested
2. Network Technology
3. Network Terminal
4. New Technology

✅ Correct Answer: 2

In C language, .exe file is produced by ?

1. Linker
2. Loader
3. Compiler
4. Interpreter

✅ Correct Answer: 1

Which of the followings is a valid statement for declaring a Variable In C ?

1. int marks;
2. int a,b,c;
3. double salary;
4. All of these

✅ Correct Answer: 4

The number of Bytes used by char data type in C is?

1. 2
2. 1
3. 3
4. 4

✅ Correct Answer: 2