Computers and IT MCQs
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2024-2025. Computer Awareness MCQs for Competitive Exams. GKToday Computer Awareness for IBPS PO, IBPS Clerk, Bank PO, Bank Clerk and other entrance / competitive examinations.
21. Which of the following are the advantages of using a DBMS?
[A] Data security
[B] Data abstraction
[C] Data integrity
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
Data abstraction and independence A DBMS provides following advantages: Data security A locking mechanism for concurrent access An efficient handler to balance the needs of multiple applications using the same data The ability to swiftly recover from crashes and errors, including restart ability and recoverability Robust data integrity capabilities Logging and auditing of activity.
22. What is the full form of RAID?
[A] Redundant Array of Inexpensive Disks
[B] Replicated Array of Independent Data
[C] Redundant Array of Independent Disks
[D] All of the Above
Show Answer
Correct Answer: C [Redundant Array of Independent Disks]
Notes:
RAID stands for Redundant Array of Independent Disks. It is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both.
23. Which of the following is used to connect computers and other end user devices to networking devices such as hubs & switches?
[A] Router
[B] Straight-Through Cable
[C] Patch Cable
[D] Both b and c
Show Answer
Correct Answer: D [Both b and c]
Notes:
Straight-Through cable is also referred to as a “patch cable.” Straight-through cable is used to connect computers and other end user devices to networking devices such as hubs & switches.
24. Which of the following represents a nibble data?
[A] 2 bits
[B] 4 bits
[C] 6 bits
[D] 8 bits
Show Answer
Correct Answer: B [4 bits]
Notes:
Nibble refers to the half of an eight-bit byte or four binary digits. Byte is a group of bits (8 bits) used to represent a character. A byte is considered as the basic unit of measuring memory size in computer.
25. Which of these standards is used to define Ethernet based networks?
[A] IEEE 802.1
[B] IEEE 802.3
[C] IEEE 802.7
[D] IEEE 802.11
Show Answer
Correct Answer: B [IEEE 802.3]
Notes:
IEEE 802.3 is a set of standards put forth by the Institute of Electrical and Electronics Engineers (IEEE) that define Ethernet-based networks as well as the name of the working group assigned to develop these standards.
26. Which of the following is an advantage of using Ring network topology?
[A] Troubleshooting is easy
[B] Failure of one computer has no effect on others
[C] Network is not affected by high traffic
[D] All of the above
Show Answer
Correct Answer: C [Network is not affected by high traffic]
Notes:
In Ring topology, each computer is connected to another computer, with the last one connected to the first. Exactly two neighbours are there for each device. The advantage of using a Ring network topology is that the network is not affected by high traffic.
27. Who invented the Twister pair cables?
[A] James Macmillan
[B] Henry Ford
[C] Alexander Graham Bell
[D] Ron Cable
Show Answer
Correct Answer: C [Alexander Graham Bell]
Notes:
Twisted-pair cabling was invented by Alexander Graham Bell in 1881. It is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility.
28. What do we call the process of transferring a mobile station from one base station to another?
[A] Looping
[B] Hand off
[C] Forwarding
[D] Channeling
Show Answer
Correct Answer: B [Hand off]
Notes:
Hand off is the process of transferring an active call or data session from one cell in a cellular network to another or from one channel in a cell to another.
29. Which of the following is a standard for 1G network?
[A] UMTS
[B] GSM
[C] AMPS
[D] All of the above
Show Answer
Correct Answer: C [AMPS]
Notes:
AMPS or the Advanced Mobile Phone System is a standard for 1G mobile network which was in use in North America and Australia.
30. What does ARPANET stand for?
[A] Automated Research Projects Agency Network
[B] American Research Projects Agency Network
[C] Advanced Research Projects Agency Network
[D] American Research Projects Automatic Network
Show Answer
Correct Answer: C [Advanced Research Projects Agency Network]
Notes:
ARPANET stands for Advanced Research Projects Agency Network. It was the first network to implement the TCP/IP protocol suite.
