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.
81. Which of the following device distributes network traffic across a number of servers?
[A] IDS
[B] Load Balancer
[C] Switch
[D] Hub
Show Answer
Correct Answer: B [Load Balancer]
Notes:
A load balancer is a device that acts as a reverse proxy and distributes network or application traffic across a number of servers. Load balancers are used to increase capacity and reliability of applications
82. What is the name given to the device that converts between two different types of transmission for interoperation?
[A] Bridge Router
[B] Protocol Convertor
[C] Multilayer Switch
[D] Hub Jointer
Show Answer
Correct Answer: B [Protocol Convertor]
Notes:
A Protocol Converter is a device used to convert standard or proprietary protocol of one device to the protocol suitable for the other device or tools to achieve the interoperability.
83. Which of the following hubs can store, amplify, split and retransmit the received signals?
[A] Passive Hub
[B] Active Hub
[C] Intelligent Hub
[D] All of the Above
Show Answer
Correct Answer: B [Active Hub]
Notes:
Active hub can store, amplify, split and retransmit the received signals. It requires additional electronic circuit for performing different functions.
84. 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.
85. Which of these network topologies has every computer and network device connected to single cable?
[A] Mesh
[B] Ring
[C] Star
[D] Bus
Show Answer
Correct Answer: D [Bus]
Notes:
Bus topology is a network type in which every computer and network device is connected to single cable. It is ideal for small networks.
86. What role does fibers play in Optical Fiber cables?
[A] Prevent loss of signals
[B] Provide immunity against electromagnetic interference
[C] Both a and b
[D] None
Show Answer
Correct Answer: C [Both a and b]
Notes:
Fibers are used instead of metal wires because signals travel along them with less loss. Also, fibers are immune to electromagnetic interference, a problem from which metal wires suffer excessively. In addition, Fibers are also used for illumination and imaging.
87. What is the bandwidth limit for CAT5e cable?
[A] upto 1 Mbps
[B] upto 2 Mbps
[C] upto 10 Mbps
[D] upto 1 Gbps
Show Answer
Correct Answer: D [upto 1 Gbps]
Notes:
CAT5e can support upto 1 Gbps speeds. It was made as an improvement over CAT5 cables which can support data transmission upto 100Mbps.
88. 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.
89. Which of the following devices can help to extend the range of a wireless router?
[A] Wireless repeater
[B] Wireless adapter
[C] Wimax
[D] Network interface card
Show Answer
Correct Answer: A [Wireless repeater]
Notes:
Wireless repeater is used to extend the range of a wireless router. A repeater receives wireless signals and amplifies the strength of the signals, and then re-emits them.
90. Which of these factors affect the line of sight communication?
[A] line of sight distance
[B] curvature of the earth
[C] Both a and b
[D] None
Show Answer
Correct Answer: C [Both a and b]
Notes:
The line of sight communication is affected by (a) the line of sight distance (b) the curvature of the earth. The space waves are used for line of sight communication such as television broadcast, microwave link and satellite communication.
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