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. Which one of the following made up a layer 3 Switch?
[A] Hub
[B] Switch
[C] Router
[D] Both b and c
Show Answer
Correct Answer: D [Both b and c]
Notes:
A layer 3 switch is a switch and a router built together for fast performance. A router is a networking device that forwards data packets between computer networks.
23. What are the other names for a Network Interface Card?
[A] LAN adaptor
[B] Network adaptor
[C] Network Card
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A Network Interface Card is circuit board or a card that allows computers to communicate over a network via cables or wirelessly. Every network adaptor is assigned a unique 48-bit Media Access Control address, which is stored in ROM to identify themselves in a network.
24. 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.
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. Which of these network topologies have all the network nodes connected directly to each other?
[A] Bus
[B] Mesh
[C] Star
[D] Tree
Show Answer
Correct Answer: B [Mesh]
Notes:
Mesh topology is a point-to-point connection to other nodes or devices. All the network nodes are directly connected to each other.
27. Which of these networks usually have all the computers connected to a hub?
[A] Ring
[B] Tree
[C] Star
[D] Bus
Show Answer
Correct Answer: C [Star]
Notes:
In Star topology, all the computers are connected to a single hub through a cable. This hub is the central node and all others nodes are connected to the central node.
28. Which of the following hardware device is essential for a computer to connect to a wireless network?
[A] Graphics card
[B] Wireless Printer
[C] Wireless adapter
[D] None of the above
Show Answer
Correct Answer: C [Wireless adapter]
Notes:
Wireless adapters are those hardware devices which are installed inside computers to enable wireless connectivity. If a computer does not have a wireless adapter, it will not be able to connect to a router in order to access the Internet.
29. Who invented the World Wide Web?
[A] Robert Tappan
[B] Charles Babbage
[C] Tim Berners-Lee
[D] Niko Hodiko
Show Answer
Correct Answer: C [Tim Berners-Lee]
Notes:
Tim Berners-Lee invented the World Wide Web in 1989. HTML documents were transmitted over the Internet by a web server to web browsers using Uniform Resource Locators.
30. What is meant by the terms ‘connect time’?
[A] Speed of data transfer in a connection
[B] Amount of time it took for user to make a connection to a remote computer
[C] Amount of time user is logged in to a remote computer
[D] None of the above
Show Answer
Correct Answer: C [Amount of time user is logged in to a remote computer]
Notes:
The amount of time a user is logged in to a remote computer is called as connect time. This becomes important in as many online services charge users per connect time.
