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

A.
Unshielded Twister Pair cable

B.
Shielded Twister Pair cable

C.
Coaxial cable

D.
Fiber Optic cable

Explanation:
Fiber optic cable is immune to EMI.
Incorrect Answers:
A: Both STP and UTP are very susceptible to EMI.
B: Both STP and UTP are 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 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.