3
QuizMultiple Choice

Data Encapsulation — Test

Question 3 • Career Explorations II

Why does a bus network need regular hubs if it is to cover very much ground?

Answer
A
because otherwise the packets will bounce back and forth from end to end repeatedly
B
because otherwise the signal will fade out
C
because otherwise it would be a ring network
D
because otherwise the signal-to-noise ratio will not be high enough

Explanation

Signals weaken as they travel along a bus cable, so the distance they can cover is limited. Regular hubs regenerate or repeat the signal, allowing it to travel farther across the network. Thus, “otherwise the signal will fade out” is the correct choice.

AI-written and checked against the verified answer.

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