JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2023) — Question 33

Which new field is added to an IPv6 header as compared to IPv4?

Answer options

• A. flow label
• B. checksum
• C. fragment offset
• D. version

Correct answer: A

Explanation

The correct answer is A, flow label, which is a new feature in the IPv6 header used to identify packets belonging to the same flow for quality of service. Options B (checksum) is omitted in IPv6, C (fragment offset) is present in both but structured differently, and D (version) is included in both but serves to indicate the protocol version.