Question

सबसे पुराना व सबसे अधिक काम में आने वाला संचार माध्यम है –
(अ) कोएक्शिअल केबल
(ब) ऑप्टिक फाइबर केबल
(स) ट्विस्टेड पेअर केबिल
(द) उक्त में से कोई नहीं

Answer 1

Answer:

Option (2)

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Answer 2

Answer:

There are three common types of communication cables which includes  Coaxial, Fiber Optic, and Twisted Pair.

Explanation:

Twisted pair cable are the oldest among all and useful in following ways:

1. most cost-effective option of the three
2. Used for high-end applications in large-scale businesses as well as external cabling that could be exposed to environmental elements.

The disparity between twisted pairs and coaxial cables is related to the shielding. Though coaxial cables are more costly, because they are better shielded and they accommodate longer cable lengths. coaxial cables are used almost exclusively for high-speed communication includes telecommunications services.  

Fibre optic cables can hold more data than coaxial cables and twisted, they have advantage that that they are extremely durable, easy and cheap to operate.

That is why twisted pair cables are the oldest form of cable.

Hence, the correct option is C.

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