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 below is known as the Multi-Port Repeater?
[A] Firewall
[B] HIDS
[C] Hub
[D] Switch
Show Answer
Correct Answer: C [Hub]
Notes:
A hub, in the context of networking, is a hardware device that relays communication data. A hub sends data packets to all devices on a network.
22. Which one of the following made up a layer 3 Switch?
[A] Hub
[B] Switch
[C] Router
[D] Both b and c
Show Answer
Correct Answer: D [Both b and c]
Notes:
A layer 3 switch is a switch and a router built together for fast performance. A router is a networking device that forwards data packets between computer networks.
23. Which one of the following routers sits on the periphery of the network?
[A] Core Router
[B] Access Router
[C] Edge Router
[D] Both b and c
Show Answer
Correct Answer: D [Both b and c]
Notes:
An access router is a router that sits at the periphery of a network. It is also known as edge router. It Contrast with “core router,” which is a router that resides in the middle of the network.
24. What is the actual measurement of data that can be sent over network?
[A] Bandwidth
[B] Throughput
[C] Queue size
[D] None of the above
Show Answer
Correct Answer: B [Throughput]
Notes:
The throughput is the actual measurement of data that can be sent over network. It is different from Bandwidth which is the maximum amount of data that can travel through a network.
25. Which of the following uses digital signaling, which is inserted in the transmission channel as voltage pulses?
[A] Base-band
[B] Broadband
[C] Narrow band
[D] None of the above
Show Answer
Correct Answer: A [Base-band]
Notes:
Base-band signaling is defined as one that uses digital signaling, which is inserted in the transmission channel as voltage pulses.
26. Which of the following noise may occur when signals at different frequencies share the same transmission medium?
[A] White noise
[B] Intermodulation noise
[C] Cross talk
[D] Impulse noise
Show Answer
Correct Answer: B [Intermodulation noise]
Notes:
When signals at different frequencies share the same transmission medium, the result may be intermodulation noise. Signals at a frequency that is the sum or difference of original frequencies or multiples of those frequencies will be produced.
27. 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.
28. Which of the following techniques is used by UMTS?
[A] FDMA
[B] CDMA
[C] TDMA
[D] SDMA
Show Answer
Correct Answer: B [CDMA]
Notes:
UMTS uses wideband code division multiple access (W-CDMA) radio access technology which offers greater spectral efficiency and bandwidth to mobile network operators.
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. Which of these networks is used for communication between bulletin board systems?
[A] FidoNet
[B] GOSIP
[C] Archie
[D] None of the above
Show Answer
Correct Answer: A [FidoNet]
Notes:
FidoNet is a worldwide computer network that is used for communication between bulletin board systems (BBSes). It is used a store-and-forward system to exchange private (email) and public (forum) messages.
