Registered Communications Distribution Designer (RCDD-001) — Question 13

ITU-T G.655 recommends which type of singlemode optical fiber?

Answer options

• A. DSF
• B. N-DSF
• C. NZ-DSF
• D. SF

Correct answer: C

Explanation

The correct answer is C, NZ-DSF, because ITU-T G.655 specifically endorses Non-Zero Dispersion Shifted Fiber for better performance in various applications. Options A and B refer to standard and Non-Zero Dispersion fibers, respectively, which do not meet the specific criteria outlined in the recommendation, while option D is not relevant to the ITU-T G.655 guidelines.