To connect a computer with a nearby device in the same room (short distance, point-to-point), which option is most appropriate?
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AA coaxial cable
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BA dedicated line
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CA ground station
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DAll of the above
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ENone of the above
Answer
Correct Answer: A dedicated line
Explanation
Introduction / Context:Short-distance connections inside a room are typically direct, simple, and point-to-point—think computer-to-instrument or computer-to-printer cabling. The goal is to select the option that best characterizes this local connection style.
Given Data / Assumptions:
- Endpoints are in the same room (meters apart).
- No carrier services or satellite links are needed.
- Point-to-point dedicated connectivity is intended.
Concept / Approach:
A 'dedicated line' in this context denotes a private, exclusive link between two devices. Although the physical medium may be coaxial, twisted pair, or USB, the defining property is the direct dedicated connection, not a shared or carrier-provisioned service. Ground stations are satellite infrastructures and are irrelevant for in-room links.
Step-by-Step Solution:
Recognize that same-room connectivity implies simple point-to-point wiring.Choose the answer that emphasizes exclusivity and directness: 'A dedicated line.'Note that 'coaxial cable' is a type of medium, but the question asks for what you would be likely to use—conceptually a dedicated connection, not satellite or carrier gear.Eliminate options involving satellite (ground station) or an indiscriminate 'All of the above.'Verification / Alternative check:
Common lab setups use direct dedicated cabling (USB/serial/Ethernet patch) between a computer and a device in the same room, matching the dedicated-line concept.
Why Other Options Are Wrong:
A coaxial cable: Possible physical medium, but the broader, more accurate choice is a dedicated line.
A ground station: Satellite infrastructure; irrelevant indoors.
All of the above: Incorrect; ground station is not applicable.
None of the above: Incorrect because a dedicated line is appropriate.
Common Pitfalls:
Confusing the concept (dedicated link) with a specific cable type; many media can implement a dedicated line.
Final Answer:
A dedicated line