Which statement is correct regarding a point-to-point connection in data…
2024
Which statement is correct regarding a point-to-point connection in data communication?
I. It provides a dedicated link between two devices.
II. It is a time-shared connection.
Answer: D. Only I — ConceptA point-to-point configuration connects exactly two endpoints through a dedicated physical or logical link. Time-sharing allocates a common…
- A.
Only II
- B.
Both I and II
- C.
Neither I nor II
- D.
Only I
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Show answer & explanation
Correct answer: D
Concept
A point-to-point configuration connects exactly two endpoints through a dedicated physical or logical link.
Time-sharing allocates a common communication resource among multiple users or devices at different times; it describes shared use rather than an exclusive endpoint-to-endpoint link.
For example, a direct link between two routers remains point-to-point even when packets are sent at different moments: the deciding issue is that the link capacity belongs to those two endpoints, not whether transmission is continuous.
Application
Statement I identifies a dedicated link between two devices, which matches the definition of a point-to-point connection.
Statement II calls the connection time-shared. That would require a communication resource shared over time, which conflicts with the dedicated two-endpoint arrangement.
Cross-check and contrast
Only II reverses both evaluations by rejecting the dedicated-link statement and accepting the time-sharing statement.
Both I and II keeps the time-sharing statement even though shared use conflicts with the defining dedicated link.
Neither I nor II rejects the dedicated-link statement even though that statement gives the defining property.
Only I retains the dedicated-link statement and rejects the time-sharing statement.
Result
Therefore, statement I is true and statement II is false; the answer is Only I.
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