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20+ Best Hardware & Software Mcqs Questions with PDF Set-1__Computer Hardware & Software

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Multiple Choice Questions(Hardware and Software)
Set-1
       
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1. 
When referring to instruction words, a mnemonic is:
A.
a short abbreviation for the operand address
B.
a short abbreviation for the operation to be performed
C.
a short abbreviation for the data word stored at the operand address
D.
shorthand for machine language
Answer: Option B
2. 
What is the difference between mnemonic codes and machine codes?
A.
There is no difference.
B.
Machine codes are in binary, mnemonic codes are in shorthand English.
C.
Machine codes are in shorthand English, mnemonic codes are in binary.
D.
Machine codes are in shorthand English, mnemonic codes are a high-level language.
Answer: Option B
3. 
Which bus is bidirectional?
A.
data bus
B.
control bus
C.
address bus
D.
multiplexed bus
Answer: Option A
4. 
The software used to drive microprocessor-based systems is called:
A.
assembly language programs
B.
Firmware
C.
BASIC interpreter instructions
D.
flowchart instructions
Answer: Option A
5. 
A microprocessor unit, a memory unit, and an input/output unit form a:
A.
CPU
B.
Compiler
C.
microcomputer
D.
ALU
Answer: Option C
6. 
How many buses are connected as part of the 8085 microprocessor?
A.
2
B.
3
C.
5
D.
8
Answer: Option B
7. 
Which of the following is not a computer bus?
A.
data bus
B.
timer bus
C.
control bus
D.
address bus
Answer: Option B
8. 
The technique of assigning a memory address to each I/O device in the SAM system is called:
A.
wired I/O
B.
I/O mapping
C.
dedicated I/O
D.
memory-mapped I/O
Answer: Option D
9. 
How many bits are used in the data bus?
A.
7
B.
8
C.
9
D.
16
Answer: Option B
10. 
A port can be:
A.
strictly for input
B.
strictly for output
C.
Bidirectional
D.
all the above
Answer: Option C
11. 
Which of the following is not a basic element within the microprocessor?
A.
microcontroller
B.
arithmetic-logic unit (ALU)
C.
temporary register
D.
Accumulator
Answer: Option A
12. 
How many bits are used in the address bus?
A.
7
B.
8
C.
9
D.
16
Answer: Option D
13. 
Exceptions to the 8085 microprocessor normal operation are called:
A.
jump instructions
B.
Decoding
C.
Interrupts
D.
jump instructions or interrupts
Answer: Option D
14. What is a system called that links together mainframes, minicomputers, and microcomputers that are in close proximity for the purpose of communication? 
A.     server network
B.     groupware network
C.    immediate network group
D.    local area network
       ANSWER:  D
 15. What is a network that uses a server to meet the needs of the other computers on the network?
A.     client/server network
B.     groupware network
C.    immediate network group
D.    local area network
        ANSWER: A
 16. What is an internal network designed to provide and disseminate information to internal staff by using the look and feel of the World Wide Web?
A.     Intranet
B.     Extranet 
C.    Internet
D.    local area network
        ANSWER: A
 17. A network that links computers located thousands of miles of apart is called a _______________.
A.     world area network
B.     universal area network
C.    wide area network
D.    local area network
        ANSWER: C
 18. What network security feature prevents users on a network from using programs and information that they do not need to access?
A.     password rights
B.     access rights
C.    protocol rights
D.    right of entry
        ANSWER: B
 19. What is the term used to describe “data about data”?
A.     data access
B.     access rights
C.    data integrity
D.    metadata
         ANSWER: D
 20. What is a prewritten plan that is put in place when things go horribly wrong?
A.     emergency evacuation
B.     disaster recovery plan
C.    disaster protocol plan
D.    emergency information plan
          ANSWER: B
 21. What is software that is the electronic equivalent of a filing room?
A.     document management
B.     electronic management
C.    filenet
D.    filing Assembly Software
         ANSWER: A
 22. What do we call a company that provides software through the Internet directly to the user’s computer?
A.     application vendor
B.     software service provider
C.    application service provider
D.    shareware
          ANSWER: C
 23. What type of device represents the largest security risk?
A.     desktop
B.     laptop
C.    mobile phone
D.    none of the above
         ANSWER: B
 24. What risk does a flash or thumb drive have?
A.     it can be lost
B.     it can be smuggled into a secure area for the purpose of stealing  files
C.    a and b
D.    none of the above
          ANSWER: C
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