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 one of the following is not an example of WAN?
[A] Ethernet
[B] ISDN
[C] Frame Relay
[D] ATM
Show Answer
Correct Answer: A [Ethernet]
Notes:
In MAN, various LANs are connected to each other through a telephone exchange line. The most widely used protocols in MAN are RS- 232, Frame Relay, ATM, ISDN, OC-3, ADSL, etc.
22. Which of the following devices has high bandwidth?
[A] Switch
[B] Router
[C] Modem
[D] Bridge
Show Answer
Correct Answer: A [Switch]
Notes:
A network switch is a computer networking device that connects devices on a computer network by using packet switching to receive, process, and forward data to the destination device.
23. What do we call the time it takes for an entire message to completely arrive at the destination from the time the first bit is sent out from the source?
[A] Propagation time
[B] Transmission time
[C] Latency
[D] Throughput
Show Answer
Correct Answer: C [Latency]
Notes:
The latency or delay defines how long it takes for an entire message to completely arrive at the destination from the time the first bit is sent out from the source.
24. Which of the following is not a disadvantage of a Tree network topology?
[A] It is heavily cabled
[B] Error detection is difficult
[C] High cost
[D] Whole network fails if central hub fails
Show Answer
Correct Answer: B [Error detection is difficult]
Notes:
One of the advantages of TREE network topology is that the error detection is easily done. Also, it is easy to manage and expand.
25. What do we call the network design containing more than one topology?
[A] Hybrid
[B] Mesh
[C] Tree
[D] Star
Show Answer
Correct Answer: A [Hybrid]
Notes:
A network structure whose design contains more than one topology is said to be hybrid topology. Hybrid topology has all the merits and demerits of all the incorporating topologies.
26. What is the full form of Wi-Fi?
[A] Wireless Fidelity
[B] Wireless Find
[C] Wireless Function
[D] Wireless Fiber
Show Answer
Correct Answer: A [Wireless Fidelity]
Notes:
WI-Fi stands for Wireless Fidelity. It is a local area wireless technology. It allows an electronic device to transfer data or connect to the internet using radio waves.
27. Which of the following hardware device is essential for a computer to connect to a wireless network?
[A] Graphics card
[B] Wireless Printer
[C] Wireless adapter
[D] None of the above
Show Answer
Correct Answer: C [Wireless adapter]
Notes:
Wireless adapters are those hardware devices which are installed inside computers to enable wireless connectivity. If a computer does not have a wireless adapter, it will not be able to connect to a router in order to access the Internet.
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. Who was the first head of the state to send an email?
[A] George Washington
[B] Queen Elizabeth II
[C] Jimmy Carter
[D] None of the above
Show Answer
Correct Answer: B [Queen Elizabeth II]
Notes:
In 1976 Queen Elizabeth II of the United Kingdom sent an email on Arpanet, becoming the first head of state to do so.
30. In which year NSFNET program was established?
[A] 1983
[B] 1984
[C] 1985
[D] 1986
Show Answer
Correct Answer: C [1985]
Notes:
NSFNET stands for National Science Foundation Network. It was a program which was sponsored by the National Science Foundation (NSF) beginning in 1985 to promote advanced research and education networking in the United States.
