Paper 1 · ICT
UGC NET 25th June 2025 Shift 2
Which of the following statements are true?
- 1. Full duplex communication is bidirectional.
- 2. FM radio is an example of simplex communication.
- 3. Walkie- talkie is an example of full duplex communication.
- 4. In half duplex communication both devices can send and receive data at the same time.
- 5. A landline telephone is an example of half duplex communication.
A1, 2, 3, 4 & 5
B3, 4 & 5 only
C1 & 2 only ✓ Correct
D1, 2 & 4 only
Correct answer: (C) 1 & 2 only — Full duplex carries data in both directions at once, so it is bidirectional, and FM radio sends only one way, so it is simplex, making the first two statements true.…
Explanation
★Full duplex carries data in both directions at once, so it is bidirectional, and FM radio sends only one way, so it is simplex, making the first two statements true. A walkie talkie is half duplex, half duplex does not allow sending and receiving at the same instant, and a landline phone is full duplex, so those three claims are false.
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