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. Which among the following is the term given to the three rules to find logically implied functional dependencies?
[A] Reflexivity Rules
[B] Normalization Rules
[C] W. Armstrong’s Axioms
[D] Closure Rules
Show Answer
Correct Answer: C [W. Armstrong’s Axioms]
Notes:
The three rules given by Armstrong are known as Armstrong’s axioms. It refers to the sound and complete set of inference rules that is used to test logical implication of functional dependencies.
22. System Area Network is used to provide high-speed connection in which of the following environments?
[A] Server-to-server application
[B] Storage Area Network
[C] Processor-to-Processor application
[D] All of the Above
Show Answer
Correct Answer: D [All of the Above]
Notes:
System Area Network is used to explain a relatively local network that is designed to provide high-speed connection in server-to-server applications, storage area network and processor-to-processor applications. The computers connected on a SAN operate as a single system at very high speeds.
23. Which of the following networking hardware can operate at anyone of the seven layers of the open systems interconnection model?
[A] Router
[B] Gateway
[C] Switch
[D] Modem
Show Answer
Correct Answer: B [Gateway]
Notes:
Gateways are distinct from routers or switches in that they communicate using more than one protocolh6k and can operate at any of the seven layers of the open systems interconnection model .
24. Which of the following devices has high bandwidth?
[A] Switch
[B] Router
[C] Modem
[D] Bridge
Show Answer
Correct Answer: A [Switch]
Notes:
A network switch is a computer networking device that connects devices on a computer network by using packet switching to receive, process, and forward data to the destination device.
25. Which one of the below is known as the Multi-Port Repeater?
[A] Firewall
[B] HIDS
[C] Hub
[D] Switch
Show Answer
Correct Answer: C [Hub]
Notes:
A hub, in the context of networking, is a hardware device that relays communication data. A hub sends data packets to all devices on a network.
26. 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.
27. Which of the following radio signals are used by 1G networks?
[A] Analog
[B] Digital
[C] Both Analog and Digital
[D] None
Show Answer
Correct Answer: A [Analog]
Notes:
The radio signals used by 1G networks are analog. While the radio signals used by the 2G networks are digitals. This is one of the main differences between 1G and 2G.
28. Which of the following countries had a packet-switching network called as ‘CYCLADES’?
[A] USA
[B] UK
[C] Russia
[D] France
Show Answer
Correct Answer: D [France]
Notes:
The CYCLADES packet switching network was a French research network. It was the first network to make the hosts responsible for reliable delivery of data, rather than the network itself.
29. Who was the first head of the state to send an email?
[A] George Washington
[B] Queen Elizabeth II
[C] Jimmy Carter
[D] None of the above
Show Answer
Correct Answer: B [Queen Elizabeth II]
Notes:
In 1976 Queen Elizabeth II of the United Kingdom sent an email on Arpanet, becoming the first head of state to do so.
30. 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.
