Nokia Certified Network Associate (NCNA) — Question 26

What is the most specific aggregate prefix for the following 4 subnets?
136.160.17.192/29
136.160.17.200/29
136.160.17.208/29
136.160.17.216/29

Answer options

• A. 136.160.17.128/25
• B. 136.160.17.192/26
• C. 136.160.17.192/27
• D. 136.160.17.192/28

Correct answer: C

Explanation

The correct answer is C, 136.160.17.192/27, because it covers all four subnets while being the most specific. Option A is too broad, and options B and D do not encompass all the provided subnets.