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. What is the name given to the technique of connecting computers?
[A] Node
[B] Topology
[C] Architecture
[D] Ring
Show Answer
Correct Answer: B [Topology]
Notes:
Computer networks can be broken down historically into topologies, which is a technique of connecting computers. The most common topology today is a collapsed ring.
22. 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.
23. 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.
24. Which of the following switching methods was used by ARPANET?
[A] Message-switching
[B] Packet-switching
[C] Circuit-switching
[D] None of the above
Show Answer
Correct Answer: B [Packet-switching]
Notes:
The Advanced Research Projects Agency Network or as it is called as ARPANET was an early packet-switching network and the first network to implement the TCP/IP protocol suite.
25. 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.
26. What do we call the process of limiting bandwidth consumption by users?
[A] Bandwidth Shaping
[B] Downstreaming
[C] Net Neutrality
[D] Walling
Show Answer
Correct Answer: A [Bandwidth Shaping]
Notes:
Bandwidth Shaping refers to a tool used by ISPs to limit or direct bandwidth consumption by users. Bandwidth shaping is also called bandwidth allocation or referred to as a bandwidth management tool.
27. Which of the following is correct about Digital Subscriber Line?
[A] It is always on
[B] It is faster than Dial-up
[C] Internet and phone can be used in the same time
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A Digital Subscriber Line is always on and is faster than Dial-up. In DSL, Internet and phone can be used in the same time.
28. Which port is used by the Network News Transport Protocol?
[A] 143
[B] 123
[C] 119
[D] 110
Show Answer
Correct Answer: C [119]
Notes:
The Network News Transport Protocol or NNTP uses the port 119. NNTP is similar to the SMTP protocol used for sending email messages, but it is designed specifically for newsgroup articles.
29. What is the length of addresses used by IPv4?
[A] 16-bit
[B] 32-bit
[C] 64-bit
[D] 8-bit
Show Answer
Correct Answer: B [32-bit]
Notes:
IPv4 uses 32-bit addresses. This limits the address space to 232 addresses. IPv4 addresses are written in the dot-decimal notation, which consists of four octets.
30. Which of these web browsers has the largest market share presently, across all platforms?
[A] Edge
[B] Chrome
[C] Safari
[D] Firefox
Show Answer
Correct Answer: B [Chrome]
Notes:
As per W3Counter’s browser stats for January 2019, Google Chrome has a 62% worldwide browser market share across all platforms.
