Cisco IP-Communications Certifications Exam 646-096

Which of the following statements is TRUE?
Between multi mode fiber and single mode fiber, which of the following can carry a
signal a longer distance?

A. Multimode fiber can carry a signal for a longer distance than single-mode fiber.
B. Both multimode and single mode fiber can carry a signal for the same distance.
C. Single-mode fiber can carry a signal for a longer distance than multimode fiber.
D. Both multimode and single mode fiber has a distance limitation of less than 1000
meters.646-096
Answer: C
Explanation: 642-071
Single-mode fiber can carry a signal for a longer distance than multimode fiber.

Incorrect Answers:
A, B: Single-mode fiber can carry a signal for a longer distance than multimode fiber.
D: Single-mode fiber can carry a signal for up to 10,000 meters.
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References:
David Groth and Dan Newland, A+ Complete Study Guide (2nd Edition), Sybex,
Alameda CA, 2002, pp. 325-327