Alcatel-Lucent NRS I – Layer 2 Switching and Spanning Tree — Question 21

Which of the following is FALSE regarding the 16-bit public autonomous system numbers?

Answer options

• A. They are allocated to the RIRs by ICANN/IANA.
• B. They are used when connecting ASs on the Internet.
• C. They range from 1 to 56319.
• D. They are assigned by the ISPs for enterprise networks.

Correct answer: D

Explanation

Option D is correct because 16-bit public autonomous system numbers are not assigned by ISPs for enterprise networks; instead, they are allocated by RIRs for use on the global Internet. The other options accurately describe the characteristics and uses of these AS numbers.