Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Multiple Choice Questions
Q851: How does CSMA/CA differ from CSMA/CD in handling busy channels?
- A: CSMA/CA waits and retries based on the channel status, while CSMA/CD detects and manages collisions
- B: CSMA/CA uses encryption, while CSMA/CD does not
- C: CSMA/CA allows immediate retries, while CSMA/CD waits
- D: CSMA/CA ignores busy channels, while CSMA/CD addresses them directly
View Answer
A
Q852: In CSMA/CA, what is the purpose of waiting before starting transmission?
- A: To avoid collisions with machines that have already been waiting
- B: To increase transmission speed
- C: To ensure messages are encrypted
- D: To reduce network traffic
View Answer
A
Q853: What does the acknowledgment of a request message from the AP indicate in a WiFi network?
- A: The channel is free, and the machine can transmit its message
- B: The channel is busy, and the machine should retry later
- C: The AP is malfunctioning
- D: The message is not needed
View Answer
A
Q854: What device connects two buses and passes signals back and forth?
- A: Repeater
- B: Bridge
- C: Switch
- D: Router
View Answer
A
Q855: How does a bridge differ from a repeater in network connections?
- A: A bridge forwards messages based on destination addresses, while a repeater does not
- B: Bridge connects multiple networks, repeater connects only two
- C: Bridge amplifies signals, repeater forwards signals without amplification
- D: Bridge provides routing capabilities, repeater does not
View Answer
A
Q856: What does a switch do in a network?
- A: It connects multiple buses and forwards messages only to the appropriate spokes
- B: It amplifies signals between two networks
- C: It directly connects two networks without considering destination addresses
- D: It manages internet-wide addressing and routing
View Answer
A
Q857: Which device connects networks with incompatible characteristics to form an internet?
- A: Router
- B: Repeater
- C: Bridge
- D: Switch
View Answer
A
Q858: What is the primary function of a router in an internet?
- A: To forward messages between networks while allowing each network to maintain its unique characteristics
- B: To amplify signals between two networks
- C: To connect multiple networks as spokes on a wheel
- D: To pass signals without consideration of destination addresses
View Answer
A
Q859: What does each machine in an internet have in addition to its local address?
- A: An internet address
- B: A forwarding table
- C: A gateway address
- D: A router address
View Answer
A
Q860: What is the role of a gateway in a network?
- A: To serve as a passageway between the network and the outside world
- B: To connect multiple buses and forward messages to appropriate spokes
- C: To amplify signals between two networks
- D: To provide internet-wide addressing and routing
View Answer
A