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.
31. Which of the following factors significantly impacts the data transmission rate?
[A] Available bandwidth
[B] Signal strength
[C] Noise level
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Data transmission speed, or the data rate, is significantly influenced by several factors. Available bandwidth, which is the data handling capacity of the connection, plays a critical role. The strength or level of signals being used also affects the data rate. A weak signal can lead to slower transmission. The noise level, which refers to any unwanted interference, can disturb the data signal and thus reduce the speed.
32. What is the number of bit interval per second known as?
[A] Bit period
[B] Bit lag
[C] Bit capacity
[D] Bit rate
Show Answer
Correct Answer: D [Bit rate]
Notes:
The bit rate is the number of bit interval per second. This mean that the bit rate is the number of bits send in one second, usually expressed in bits per second.
33. 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.
34. What does NIC stand for?
[A] Network Inside Computer
[B] Network inter-connection
[C] Network Interface call
[D] Network Interface card
Show Answer
Correct Answer: D [Network Interface card]
Notes:
NIC stands for Network Interface card. A network interface card (NIC) is a hardware component which is installed on a computer so that it can connect to a network.
35. 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.
36. What do we call the process of transferring a mobile station from one base station to another?
[A] Looping
[B] Hand off
[C] Forwarding
[D] Channeling
Show Answer
Correct Answer: B [Hand off]
Notes:
Hand off is the process of transferring an active call or data session from one cell in a cellular network to another or from one channel in a cell to another.
37. What is the name of the first computer virus, that affected ARPANET?
[A] Mayhem
[B] Creeper
[C] Boom
[D] Attack
Show Answer
Correct Answer: B [Creeper]
Notes:
Creeper is the first network computer virus, which infected Arpanet in 1971. Bob Thomas created Creeper as an experimental self-duplicating program that was intended not to inflict damage on, but to illustrate a mobile application.
38. What does DSL stand for?
[A] Downloading Speed Limit
[B] Digital Standard Limit
[C] Data Services Layer
[D] Digital Subscriber Line
Show Answer
Correct Answer: D [Digital Subscriber Line]
Notes:
DSL stands for Digital Subscriber Line. It is a form of broadband connection as it provides connection over ordinary telephone lines.
39. Which of these tech company owns Firefox web browser?
[A] Lenovo
[B] IBM
[C] Apple
[D] Mozilla
Show Answer
Correct Answer: D [Mozilla]
Notes:
Firefox is an open-source web browser developed by Mozilla Corporation. It is available for Windows, macOS, Linux, BSD and many other operating systems.
40. Which of the following is a famous social bookmarking website?
[A] Flickr
[B] Yelp
[C] Stumbleupon
[D] All of the above
Show Answer
Correct Answer: C [Stumbleupon]
Notes:
Social bookmarking website is a site where users share other content from the Internet and rate and comment on the content. Stumbleupon and Digg are some examples.
