Adobe ACE Certifications Exam 9A0-056

Which media type is NOT susceptible to electromagnetic interference (EMI)?
(Choose all that apply)

A. Unshielded Twister Pair cable
B. Shielded Twister Pair cable
C. Coaxial cable
D. Fiber Optic cable
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Answer: D
Explanation:
Fiber optic cable is immune to EMI.

Incorrect Answers:
A, B: Both STP and UTP are 9A0-056 very susceptible to EMI.
C: Coaxial cable is also susceptible to EMI, but not to the same extent as STP and UTP.

References:
David Groth and Dan Newland, A+ Complete 9A0-057 Study Guide (2nd Edition), Sybex,
Alameda CA, 2002, pp. 325,327.
David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda
CA, 2005, pp. 19-20, 25-27