Which of the following best distinguishes virtual circuit switching from…
2025
Which of the following best distinguishes virtual circuit switching from circuit switching in data communication networks?
Answer: A. Virtual circuit switching simulates a dedicated path using dynamic routing tables, unlike fixed physical paths in circuit switching. — Circuit switching creates a dedicated physical communication path between sender and receiver for the entire duration of communication. In contrast, virtual…
- A.
Virtual circuit switching simulates a dedicated path using dynamic routing tables, unlike fixed physical paths in circuit switching.
- B.
Circuit switching uses packet fragmentation, whereas virtual circuit switching uses a dedicated data stream.
- C.
Circuit switching and virtual circuit switching both rely exclusively on store-and-forward techniques.
- D.
Virtual circuit switching establishes a permanent path, while circuit switching allows dynamic route selection.
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Correct answer: A
Circuit switching creates a dedicated physical communication path between sender and receiver for the entire duration of communication. In contrast, virtual circuit switching creates a logical connection where packets follow a predefined virtual route using routing tables, but the path is not physically dedicated. This allows more efficient resource utilization while still maintaining ordered packet delivery.