COMPUTER NETWORKING

DATA LINK LAYER WIRED NETWORKS

CONNECTING DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Ethernet Twisted pair cable has how many conductors?
A
6 CONDUCTORS
B
8 conductors
C
10 conductors
D
12 conductors
Explanation: 

Detailed explanation-1: -It consists of eight conductors within an outer casing. Pairs of the eight conductors are twisted around each other for crosstalk cancellation, hence the name.

Detailed explanation-2: -1000BaseT is the reference for the twisted pair standard, which uses all four conductors of a Cat5 or better cable (see later).

Detailed explanation-3: -Gigabit ethernet (or 10/100/1000 Mbps) gets all its super-charged data power from using all four pairs, or all eight wires, when transferring the full 1000 Mbps of data from one computer to another.

Detailed explanation-4: -More wires could lead to too expensive cables so 8 was chosen as a compromise. RJ31 to RJ61 (including RJ45) all use the 8P8C connection; so it was already produced and reasonably priced, but not commonly found in homes. Ethernet did the simple thing, grabbed what hardware was cheap and laying around.

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