Nokia Certified Network Professional – IP/MPLS Services — Question 38

Which of the following statements about Optical Add/Drop Multiplexers (OADMs) is FALSE?

Answer options

• A. OADMs allow the user to terminate specific services through transponders.
• B. OADMs allow the user to pass-through specific services at the wavelength optical level (express channels).
• C. OADMs always require O-E-O conversion when passing-through optical channels.
• D. There are two main general classes of OADMs: FOADMs and ROADMs.

Correct answer: C

Explanation

The correct answer is C because OADMs can pass-through optical channels without the need for O-E-O conversion, allowing for more efficient signal management. Options A, B, and D are accurate statements about the functions and classifications of OADMs.