JNCIA-Junos: Juniper Networks Certified Associate – Junos (2022) — Question 59

Which address correctly represents a valid abbreviation for the 2bfc:0000:0000:0000:0217:0000:fe8c:5c85/128 IPv6 address?

Answer options

• A. 2bfc:0217: fe8c:5c85/128
• B. 2bfc:0:217::fe8c:5c85/128
• C. 2bfc:0:217:0:fe8c:5c85/128
• D. 2bfc::217:0:fe8c:5c85/128

Correct answer: D

Explanation

The correct answer is D because it uses the double colon (::) to compress the consecutive zeros in the address effectively. Options A, B, and C do not represent valid abbreviations as they either omit necessary segments or do not properly compress the zeros according to IPv6 addressing rules.