Computer Awareness MCQs and Quiz for Banking, IBPS, RRB, RBI, SBI Exams
Computer Awareness Questions and Quiz for Banking, IBPS, RRB, RBI, SBI, NABARD examinations of 2020-2021. 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 do we call the time it takes for an entire message to completely arrive at the destination from the time the first bit is sent out from the source?
[A] Propagation time
[B] Transmission time
[C] Latency
[D] Throughput
Show Answer
Correct Answer: C [Latency]
Notes:
The latency or delay defines how long it takes for an entire message to completely arrive at the destination from the time the first bit is sent out from the source.
22. What is the time needed by each device on a network, to hold the message before processing, called as?
[A] Propagation time
[B] Queuing time
[C] Transmission time
[D] Jitter
Show Answer
Correct Answer: B [Queuing time]
Notes:
The time needed for each intermediate or end device to hold the message before it can be processed. The queuing time is not constant as it changes with the load imposed on the network.
23. Which of these IEEE standards represent wireless local area network?
[A] 802.3
[B] 802.11
[C] 802.7
[D] 802.9
Show Answer
Correct Answer: B [802.11]
Notes:
The IEEE 802.11, which is a part of the IEEE 802 set of LAN protocols, defines the standards for implementing wireless local area network.
24. 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.
25. Which of these waves is most commonly used by wireless mouse to communicate?
[A] Infrared
[B] Microwaves
[C] Radio waves
[D] None of the above
Show Answer
Correct Answer: A [Infrared]
Notes:
Infrared waves are used for communication for very short distances. These are most commonly used in TV remotes, wireless mouse, keyboard, printer, etc.
26. Which of the following network protocol are described by GSM?
Show Answer
Correct Answer: A [2G]
Notes:
GSM is a standard developed to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets.
27. 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.
28. 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.
29. Which of the following is not true about Internet access through satellites?
[A] Can be used anywhere around the world
[B] Can get affected by rain and snow
[C] Slower than dial up connection
[D] None of the above
Show Answer
Correct Answer: C [Slower than dial up connection]
Notes:
It is faster than dial-up but slower than DSL. It can be used anywhere around the world and gets affected by rain and snow.
30. Which among the following is the cheapest type of internet connection?
[A] Dial-up
[B] ISDN
[C] DSL
[D] Wireless Internet
Show Answer
Correct Answer: A [Dial-up]
Notes:
Dial-up internet connection is the cheapest method to connect to the Internet. But it is a very slow connection and the quality is also not very good. The Internet speeds range from 2400 bps to 56 Kbps.
