Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2931: What does POP stand for in telecommunications?
- A: Point of Protocol
- B: Place of Phone
- C: Point of Presence
- D: Provider of Plans
View Answer
C
Q2932: Fill in the blank: Switching offices in a LATA are connected through ______.
- A: trunks
- B: wires
- C: satellite links
- D: fiber hubs
View Answer
A
Q2933: Which of the following best describes the relation between LECs and IXCs?
- A: LECs operate globally, IXCs operate locally
- B: LECs connect to IXCs via POPs
- C: LECs and IXCs are the same
- D: IXCs provide internet access
View Answer
B
Q2934: What is the main function of switching offices in a LATA?
- A: Data encoding
- B: Voice packet processing
- C: Call routing and switching
- D: DNS handling
View Answer
C
Q2935: In the beginning, the telephone network used which type of network for voice communication?
- A: Packet-switched
- B: Circuit-switched
- C: Cell-switched
- D: Wireless
View Answer
B
Q2936: How were two parties connected in early telephone networks?
- A: By satellite
- B: By mobile towers
- C: By a wire with two plugs inserted into jacks
- D: By radio waves
View Answer
C
Q2937: Fill in the blank: Initially, telephone operators connected calls manually using ______.
- A: touch screens
- B: wireless routers
- C: two plugs and jacks
- D: rotary antennas
View Answer
C
Q2938: Which of the following best describes the role of the operator in early telephone communication?
- A: Encoding data
- B: Generating electricity
- C: Physically connecting calls
- D: Routing IP packets
View Answer
C
Q2939: What was introduced to replace manual switching in telephony?
- A: Fiber optics
- B: Rotary telephones
- C: Satellite phones
- D: Push-button phones
View Answer
B
Q2940: Rotary telephones sent a ______ signal for each digit dialed.
- A: voice
- B: analog
- C: digital
- D: visual
View Answer
C