Identify the wired transmission media for the following:
“They are less expensive and commonly used in telephone lines and LANs. These cables are of two types: Unshielded and shielded.”
Show Hint
- Optical Fibre
- Coaxial Cable
- Twisted pair cable
- Microwaves
The Correct Option is C
Solution and Explanation
- "Less expensive and commonly used in telephone lines and LANs" → refers to twisted pair cables.
- They are available as Unshielded Twisted Pair (UTP) and Shielded Twisted Pair (STP).
Step 2: Evaluate options.
- Optical Fibre: Expensive, high-speed, long distance, not telephone/LAN basic usage.
- Coaxial Cable: Used for cable TV and broadband, not primarily for LAN telephony.
- Twisted pair cable: Correct → used in LANs and telephone lines, UTP/STP types.
- Microwaves: Wireless medium, not wired.
Final Answer: \[ \boxed{\text{Twisted pair cable}} \]
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