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 invented the FORTRAN language?
[A] J.W.Backus
[B] Steff Warner
[C] Von Neuman
[D] All of the Above
Show Answer
Correct Answer: A [J.W.Backus]
Notes:
John Warner Backus was an American computer scientist. He invented and implemented FORTRAN which is the first widely used high- level programming language. He was the inventor of the Backus–Naur form (BNF).
22. Which of the following is the term used to describe the process of forecasting in data?
[A] Data integrity
[B] Data Mining
[C] Data Encryption
[D] PERT Chart
Show Answer
Correct Answer: B [Data Mining]
Notes:
Data mining is the process of discovering patterns in large data sets. It involves methods at the intersection of machine learning, statistics, and database systems.
23. What is the name given to the wireless network communication over short distances using radio or infrared signals?
[A] Wireless Local Area Network
[B] Local Area Wireless Network
[C] Both a and b
[D] None of the Above
Show Answer
Correct Answer: C [Both a and b]
Notes:
Wireless Local Area Networks is sometimes referred to as local area wireless network. It provide wireless network communication over short distances using radio or infrared signals instead of traditional network cabling.
24. What is the name given to the electronic device that receives a signal and retransmits it at a higher level?
[A] Hub
[B] Repeater
[C] Switch
[D] HIDS
Show Answer
Correct Answer: B [Repeater]
Notes:
Repeater is an electronic device that receives a signal and retransmits it at a higher level onto the other side of an obstruction, so that the signal can cover longer distances.
25. 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.
26. Which of these standards is used to define higher layer LAN protocols?
[A] IEEE 802.15
[B] IEEE 802.11
[C] IEEE 802.7
[D] IEEE 802.1
Show Answer
Correct Answer: D [IEEE 802.1]
Notes:
IEEE 802 standard is a family of IEEE standards dealing with local area networks and metropolitan area networks. IEEE 802.1 deals with higher layer LAN protocols.
27. Which of the following is an advantage of using Ring network topology?
[A] Troubleshooting is easy
[B] Failure of one computer has no effect on others
[C] Network is not affected by high traffic
[D] All of the above
Show Answer
Correct Answer: C [Network is not affected by high traffic]
Notes:
In Ring topology, each computer is connected to another computer, with the last one connected to the first. Exactly two neighbours are there for each device. The advantage of using a Ring network topology is that the network is not affected by high traffic.
28. Which of these standards is defined by IEEE 802.3ab?
[A] Megabit Ethernet over copper wiring
[B] Gigabit Ethernet over Fiber optics
[C] Gigabit Ethernet over copper wiring
[D] Fast Ethernet
Show Answer
Correct Answer: C [Gigabit Ethernet over copper wiring]
Notes:
IEEE 802.3ab, which is also known as 1000BASE-T, is a standard for Gigabit Ethernet over copper wiring.
29. Which of these is not an unguided mode of transmission?
[A] Infrared
[B] Radiowaves
[C] Optical Fiber
[D] Microwaves
Show Answer
Correct Answer: C [Optical Fiber]
Notes:
In unguided transmission, no physical medium is required for the transmission of electromagnetic signals. There are 3 major types of unguided mode of transmission – Infrared, Radiowaves and Microwaves.
30. Where does the bending of EM waves occurs in the atmosphere?
[A] Troposphere
[B] Mesosphere
[C] Stratosphere
[D] Ionosphere
Show Answer
Correct Answer: D [Ionosphere]
Notes:
The phenomenon of bending of electromagnetic waves occurs in Ionosphere and they are diverted towards the earth. This is helpful in skywave propagation.
