Certified Information Systems Security Professional CISSP · Free Practice Question Easy
Question 23
- A Twisted pair
- B Coaxial
- C Fiber optic
- D Ethernet
Reveal correct answer
Correct answer: A
Explanation
Correct Answer:
A is correct. Twisted-pair cabling has been around for many years and comes in two forms: shielded twisted pair (STP), in which the cable is protected by an outside foil layer, and unshielded twisted pair (UTP), which offers no added protection. The tighter the twisting of the wires, the more resistant the cable is to interference and attenuation, which means the stronger the signals and longer the distances traveled.
Incorrect Answers:
B is incorrect. Coaxial cabling is not constructed using interwoven, insulated copper wires. It has a copper core that is surrounded by a shielding layer and grounding wire.
C is incorrect. Fiber-optic cabling is not constructed using interwoven, insulated copper wires. It uses a type of glass that carries light waves. The glass core is surrounded by a protective cladding, which in turn is encased within an outer jacket.
D is incorrect. Ethernet is a data transmission standard, not a type of cable.
Discussion
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