CISSP Practice question #137

Which type of cables would we most likely use in our data center to avoid EMI and save on cost?
A: Single-mode fiber.
B: Multi-mode fiber.
C: Copper Ethernet.
D: COAX.

CBK 4: Communication and Network Security
Source: ThorTeaches.com practice tests

Answer


B: In data centers we would use multimode fiber over singlemode fiber, as multimode is cheaper, better for shorter distances, and more versatile. Both types of fiber are not susceptible to EMI.

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