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. Who among the following proposed the R-tree for the first time?
[A] Antonin Guttman
[B] Van Neumann
[C] Steve Jobs
[D] Michael Raschell
Show Answer
Correct Answer: A [Antonin Guttman]
Notes:
R-trees are tree data structures used for spatial access methods. The R-tree was proposed by Antonin Guttman in 1984 and has found significant use in both theoretical and applied contexts.
22. Which of the following is true about Fiber Distributed Data Interface?
[A] It is a set of ANSI and ISO standards for data transmission on fiber optic lines in a local area network.
[B] It is based on the token ring protocol.
[C] It can extend in range up to 200 km.
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
Fiber Distributed Data Interface is a set of ANSI and ISO standards for data transmission on fiber optic lines in a local area network that can extend in range up to 200 km. The FDDI protocol is based on the token ring protocol. An FDDI local area network can support thousands of users.
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 are the basic functions of a gateway?
[A] Protocol Translation
[B] DHCP Service
[C] Network Address Translation
[D] All of the Above4
Show Answer
Correct Answer: D [All of the Above4]
Notes:
A gateway performs many function. Some of them are Protocol translation, network address translation and DHCP service. It is used to route the traffic from one network to another and to connect LAN to WAN or VPN.
25. Which of the following represents a sine wave?
[A] Non-periodic analog signal
[B] Periodic analog signal
[C] Periodic digital signal
[D] Non-periodic digital signal
Show Answer
Correct Answer: B [Periodic analog signal]
Notes:
The sine wave is the most fundamental form of a periodic analog signal. A periodic signal completes a pattern within a measurable time frame, called a period, and repeats that pattern over subsequent identical periods.
26. What is the length of each character in ASCII code?
[A] 2-bit
[B] 8-bit
[C] 4-bit
[D] 7-bit
Show Answer
Correct Answer: D [7-bit]
Notes:
ASCII code is used to represent digital data. In ASCII code, each character is represented by a 7-bit code.
27. What is the bandwidth limit for CAT5e cable?
[A] upto 1 Mbps
[B] upto 2 Mbps
[C] upto 10 Mbps
[D] upto 1 Gbps
Show Answer
Correct Answer: D [upto 1 Gbps]
Notes:
CAT5e can support upto 1 Gbps speeds. It was made as an improvement over CAT5 cables which can support data transmission upto 100Mbps.
28. 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.
29. In which year ARPANET was shut down?
[A] 1992
[B] 1990
[C] 1988
[D] 1984
Show Answer
Correct Answer: B [1990]
Notes:
The ARPANET, which was initially funded by the Advanced Research Projects Agency (ARPA) of the United States Department of Defense, was shutdown and dismantled in the year 1990.
30. In which year the Computer Science Network started functioning?
[A] 1978
[B] 1982
[C] 1981
[D] 1975
Show Answer
Correct Answer: C [1981]
Notes:
The Computer Science Network (CSNET) was a computer network that began operation in 1981 in the United States. The CSNET project was funded by the National Science Foundation for an initial three-year period from 1981 to 1984.
