Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q3391: Which device does NOT operate above the physical layer?
- A: Router
- B: Switch
- C: Hub
- D: Firewall
View Answer
C
Q3392: A signal can travel only a fixed distance before _______ impacts the data.
- A: attenuation
- B: regeneration
- C: amplification
- D: transmission
View Answer
A
Q3393: Which of the following devices can be called a repeater?
- A: Switch
- B: Hub
- C: Router
- D: Bridge
View Answer
B
Q3394: Fill in the blank: In a network, a ______ receives and boosts signals.
- A: switch
- B: hub
- C: modem
- D: scanner
View Answer
B
Q3395: Which of the following is true about hubs?
- A: They filter data
- B: They regenerate signals
- C: They analyze IP headers
- D: They encrypt messages
View Answer
B
Q3396: Which device would you use to extend the range of a network by regenerating signals?
- A: Firewall
- B: Switch
- C: Router
- D: Hub
View Answer
D
Q3397: Fill in the blank: ______ is the term used when signal strength becomes too weak over a distance.
- A: Propagation
- B: Attenuation
- C: Reflection
- D: Absorption
View Answer
B
Q3398: What happens when a hub receives a signal?
- A: It encrypts it
- B: It analyzes it
- C: It forwards it to one port
- D: It regenerates and broadcasts it
View Answer
D
Q3399: Fill in the blank: A hub is similar to a _______ in terms of signal regeneration.
- A: router
- B: repeater
- C: switch
- D: modem
View Answer
B
Q3400: What kind of device is a hub?
- A: Intelligent
- B: Semi-intelligent
- C: Non-intelligent
- D: Highly intelligent
View Answer
C