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 does the COMAL stands for?
[A] Common Algebraic Language
[B] Common Algorithmic Language
[C] Common Algebraic Language
[D] Computer Algebraic Language
Show Answer
Correct Answer: B [Common Algorithmic Language]
Notes:
COMAL stands for Common Algorithmic Language. It is a computer programming language developed by Benedict Lofstedt in 1973. COMAL was one of the few structured programming languages that was available for and comfortably usable on 8-bit home computers.
22. 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.
23. What will be the bandwidth of a periodic signal if it is decomposed into five sine waves with frequencies of 100, 300, 500, 700 and 900 Hz?
[A] 900 Hz
[B] 100 Hz
[C] 500 Hz
[D] 800 Hz
Show Answer
Correct Answer: D [800 Hz]
Notes:
Bandwidth = Highest frequency – Lowest frequency. In this case, bandwidth will be equal to 900Hz-100 Hz i.e. 800Hz.
24. What do we call the time required to send one single bit?
[A] Bit interval
[B] Bit lag
[C] Bit rate
[D] Bit frequency
Show Answer
Correct Answer: A [Bit interval]
Notes:
The bit interval is the time required to send one single bit. It, along with bit rate, is used to describe the digital signals.
25. Which of these has the highest transmission capacity?
[A] Twisted pair cables
[B] Coaxial cables
[C] Optical fibers
[D] All have the same
Show Answer
Correct Answer: C [Optical fibers]
Notes:
Optical fibers have around 26,000 times more transmission capacity than twisted-pair cable and Coaxial cables have around 80 times more transmission capacity than twisted pair cables.
26. UMTS is a standard for which of the following networks?
[A] 2G
[B] 3G
[C] 4G
[D] 5G
Show Answer
Correct Answer: B [3G]
Notes:
UMTS stands for Universal Mobile Telecommunications Service. It is a third-generation (3G) broadband, packet-based transmission of text, digitized voice, video, and multimedia. It transfers data at rates up to 2 megabits per second (Mbps).
27. Which of the following IEEE standards ZIGBEE is based on?
[A] IEEE 802.11.4
[B] IEEE 802.13.4
[C] IEEE 802.15.4
[D] IEEE 802.17.4
Show Answer
Correct Answer: C [IEEE 802.15.4]
Notes:
Zigbee is an IEEE 802.15.4-based specification. It is a low-power, low data rate, and close proximity (i.e., personal area) wireless ad hoc network.
28. Which of these devices is installed in the computer to plug a network cable coming from the modem?
[A] USB Drive
[B] Network Interface card
[C] Data card
[D] None of the above
Show Answer
Correct Answer: B [Network Interface card]
Notes:
A computer must have a network card installed to be able to plug a network cable coming from the modem, router or gateway.
29. Which of these is not correct about Trivial File Transfer Protocol?
[A] it is safer than FTP
[B] it does not offer directory navigation
[C] it uses UDP to transfer the files
[D] All of the above
Show Answer
Correct Answer: A [it is safer than FTP]
Notes:
TFTP does not have the security capability or the level of functionality that FTP has. TFTP does not offer is directory navigation. TFTP uses UDP to transfer the files.
30. Which of these ports is used by POP3?
[A] 110
[B] 22
[C] 143
[D] 25
Show Answer
Correct Answer: A [110]
Notes:
Post Office Protocol 3 (POP3) is an application-layer protocols used for electronic messaging across the Internet. POP3 transfers e-mail messages over TCP port 110.
