Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

A preliminary guide for comparing the simplicity of logic circuits is to count the number of input _____ leads.

A. wire
B. bus
C. gate
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
2.

An AND gate has 7 inputs, what is the only input word that produces a 1 output?

A. 0000000
B. 0001111
C. 1110000
D. 1111111
E. None of the above
Answer» E. None of the above
Discussion
3.

Which of the following electronic component is not found in ordinary ICs?

A. diodes
B. resistors
C. transistors
D. inductors
E. None of the above
Answer» E. None of the above
Discussion
4.

A shift register can be used for

A. parallel to serial conversion
B. serial to parallel conversion
C. digital delay line
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
5.

Which of the following logic families use bipolar transistors?

A. TTL
B. GaAS
C. NMOS
D. CMOS
E. None of the above
Answer» B. GaAS
Discussion
6.

Which of the following Boolean algebra rules is wrong?

A. 0 + A = A
B. 1 + A = 1
C. A + A = A
D. 1 . x = 1
E. None of the above
Answer» E. None of the above
Discussion
7.

A flip-flop is a _____ element that stores a binary digit as a low or high voltage.

A. chip
B. bus
C. I/O
D. memory
E. None of the above
Answer» E. None of the above
Discussion
8.

An AND gate has 7 inputs. How many input word are in its truth table?

A. 64
B. 32
C. 16
D. 128
E. None of the above
Answer» E. None of the above
Discussion
9.

When an inverter is placed between both inputs of an SR flip-flop, the resulting flip-flop is

A. JK flip-flop
B. D flip-flop
C. T flip-flop
D. Master slave JK flip-flop
E. None of the above
Answer» C. T flip-flop
Discussion
10.

Arithmetic operation are coded in

A. Decision symbols
B. Input/Outpur(I/0)
C. Processing symbols
D. Terminal symbols
E. None of the above
Answer» D. Terminal symbols
Discussion
11.

Which function positive logic is equivalent to OR function in negative logic?

A. NOT
B. AND
C. OR
D. NOR
E. None of the above
Answer» C. OR
Discussion
12.

FETs are used in linear ICs to:

A. increase input resistance
B. provide large resistances
C. increase device complexity
D. (a) and (b) above
E. None of the above
Answer» E. None of the above
Discussion
13.

A flip-flop can store

A. one bit of data
B. two bits of data
C. three bits of data
D. any number of bits of data
E. None of the above
Answer» B. two bits of data
Discussion
14.

The input and output devices are located away from the central computer facility in which particular type of processing.

A. Time sharing
B. Batch processing
C. Interactive mode
D. Real time processing
E. None of the above
Answer» C. Interactive mode
Discussion
15.

Which is a swapping device is used to hold the images of pages in main memory.

A. Plex
B. Paging drum
C. Card punch
D. Optical mark reader
E. None of the above
Answer» C. Card punch
Discussion
16.

A section of code that may only be executed by one process at any one time is

A. CPM
B. Critical resource
C. Critical region
D. Gray code
E. None of the above
Answer» D. Gray code
Discussion
17.

The latest PC keyboards use a circuit that senses the movement by the change in its capacitance. What are these keyboards called?

A. Capacitance keyboards
B. Mechanical keyboards
C. Qwerty keyboards
D. Dvorak keyboards
E. None of the above
Answer» B. Mechanical keyboards
Discussion
18.

A step-by-step procedure used to solve a problem is called

A. Operating system
B. Algorithm
C. Application program
D. All of the above
E. None of the above
Answer» C. Application program
Discussion
19.

Pick out the wrong statement.

A. Information stored in RAM can be changed by over writing it
B. Information stored in ROM cannot be changed by overwriting
C. Information can be stored in any location of RAM
D. Computer main memory can be accessed only sequentially
E. None of the above
Answer» E. None of the above
Discussion
20.

Everything computer does is controlled by its

A. RAM
B. ROM
C. CPU
D. Storage devices
E. None of the above
Answer» D. Storage devices
Discussion
21.

Which of the following is a non-impact printer?

A. Daisy wheel printer
B. Drum printer
C. Laser printer
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
22.

In virtual storage, program segments stored on disk during processing are called:

A. tracks
B. blocks
C. pages
D. sectors
E. None of the above
Answer» D. sectors
Discussion
23.

CD-ROM is a

A. Semiconductor memory
B. Memory register
C. Magnetic memory
D. All of the above
E. None of the above
Answer» F.
Discussion
24.

A modern digital computer has

A. extremely high speed
B. large memory
C. almost unlimited accuracy
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
25.

Data System management has long-term viability as a separate business function because

A. It requires much technical knowledge
B. It requires large investments
C. Specialists in data systems cannot be integrated into a marketing or manufacturing organization
D. An integrated database accessible to all requires independent management
E. None of the above
Answer» E. None of the above
Discussion
26.

The disk concept for reducing time lost from rotational delay is:

A. fixed block addressing
B. cylinder, track, sector data
C. staggered addressing
D. graduated block identification
E. None of the above
Answer» D. graduated block identification
Discussion
27.

What is meant by computer literacy?

A. Knowing what a computer can and cannot do
B. Ability to write computer programs
C. Knowing computer related vocabulary
D. Ability to assemble computers
E. None of the above
Answer» B. Ability to write computer programs
Discussion
28.

The first movie with terrific computer animation and graphics was released in 1982. What was its name?

A. Star Wars
B. Tron
C. Forbidden Planet
D. Dark Star
E. None of the above
Answer» C. Forbidden Planet
Discussion
29.

Which of the following isn't used in the storage phase of a computer-based information system?

A. Magnetic
B. Keyboard
C. Diskette
D. Hard disk
E. None of the above
Answer» C. Diskette
Discussion
30.

While buying a PC system, you should first

A. shop for application programs
B. identify your hardware components
C. define your computing needs
D. call for tenders
E. None of the above
Answer» D. call for tenders
Discussion
31.

Which of the following statements best describes the batch method of input?

A. Data is processed as soon as it is input
B. Data is input at the time it is collected
C. Data is collected in the form of source documents, placed into groups, and then input to the computer
D. Source documents aren't used
E. None of the above
Answer» D. Source documents aren't used
Discussion
32.

What is the name of the memory card which is conceptually related to the smart card but is similar to the video disk?

A. Laser card
B. Master card
C. Visa
D. Optical card
E. None of the above
Answer» B. Master card
Discussion
33.

In 1830, Charles Babbage disigned a machine called the Analytical Engine which he showed at the Paris Exhibition. In which year was it exhibited?

A. 1820
B. 1860
C. 1855
D. 1870
E. None of the above
Answer» D. 1870
Discussion
34.

Which of the following is used to check for errors in RAM chips?

A. ROM chip
B. Microprocessor chip
C. Parity chip
D. EPROM chip
E. None of the above
Answer» D. EPROM chip
Discussion
35.

The binary equivalent of the Hexadecimal number 7BD is

A. 11110111101
B. 111010111101
C. 101110111101
D. All of the above
E. None of the above
Answer» B. 111010111101
Discussion
36.

Which of the following is non-impact printer?

A. Drum printer
B. Line printer
C. Chain printer
D. Laser printer
E. None of the above
Answer» E. None of the above
Discussion
37.

In which year was the PC voted 'The Machine of the Year's by the American Time magazine?

A. 1970
B. 1975
C. 1983
D. 1987
E. None of the above
Answer» D. 1987
Discussion
38.

When used with I/O devices, the term intelligent implies

A. a color output capability
B. speech processing capability
C. high speed printing capability
D. feature to support offline and online tasks
E. None of the above
Answer» E. None of the above
Discussion
39.

A prefix for billion which is equal to _____ is called as billi.

A. 100
B. 10000
C. 1000
D. 10
E. None of the above
Answer» E. None of the above
Discussion
40.

In the IBM PC-AT, what do the words AT stand for?

A. Additional terminals
B. Advance technology
C. Applied technology
D. Advanced terminology
E. None of the above
Answer» C. Applied technology
Discussion
41.

The punched card used in the IBM System/3 contains

A. 80 columns
B. 120 columns
C. 96 columns
D. 126 columns
E. None of the above
Answer» D. 126 columns
Discussion
42.

Which of the following is associated with networks?

A. Download, node
B. Star topology
C. Point-to-Point
D. Both (a) and (b)
E. None of the above
Answer» E. None of the above
Discussion
43.

The primary advantage of key-to-tape data-entry systems is:

A. A large percentage of editing can be performed at the time of data entry
B. Key verification is easily performed
C. The tape is reusable
D. Keying errors can be detected as they occur
E. All of the above
Answer» D. Keying errors can be detected as they occur
Discussion
44.

An advantage of overlapped processing activities is:

A. more effective use of the CPU
B. increased processing activities for the entire system
C. better coordination of I/O activities
D. all the above
E. None of the above
Answer» E. None of the above
Discussion
45.

Primary storage is _____as compared to secondary storage.

A. Slow and inexpensive
B. Fast and inexpensive
C. Fast and expensive
D. Slow and expensive
E. None of the above
Answer» D. Slow and expensive
Discussion
46.

If the processor of a computer does not have a direct and unassisted access to data items, these items are said to be

A. offline
B. remote
C. disconnected
D. detached
E. None of the above
Answer» B. remote
Discussion
47.

An input/output device at which data enters or leaves a computer system is

A. Keyboard
B. Terminal
C. Printer
D. Plotter
E. None of the above
Answer» C. Printer
Discussion
48.

The fastest type of memory from the following list is

A. tape
B. semiconductor memory
C. disk
D. bubble memory
E. None of the above
Answer» C. disk
Discussion
49.

Which of the following is a secondary memory device?

A. Keyboard
B. Disk
C. ALU
D. All of the above
E. None of the above
Answer» C. ALU
Discussion
50.

The register which keeps track of the execution of a program and which contains the memory address of the instruction currently being executed is known as

A. Index register
B. Memory address register
C. Program counter
D. Instruction register
E. None of the above
Answer» D. Instruction register
Discussion