ICND1: Interconnecting Cisco Networking Devices Part 1 (CCENT, legacy) — Question 61

Which information is used to install the best route to a destination in IP routing table?

Answer options

• A. the tunnel ID
• B. the prefix length
• C. the interface number
• D. the autonomous system

Correct answer: B

Explanation

The prefix length is crucial for identifying the most specific route to a destination, as it indicates the number of bits used in the network portion of the address. The other options, such as tunnel ID, interface number, and autonomous system, do not directly influence the selection of the best route based on the most specific prefix match.