JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2022) — Question 27

Which two statements are true for GRE tunneling? (Choose two.)

Answer options

• A. GRE tunnel endpoints must have a valid route to the remote endpoint
• B. GRE tunnels support multiple logical units per interface
• C. GRE tunnels are stateful by default
• D. GRE tunnels support only one logical unit per interface

Correct answer: A, B

Explanation

The correct answers are A and B because GRE tunnel endpoints indeed require a valid route to communicate with each other, and they can support multiple logical units per interface. Options C and D are incorrect as GRE tunnels are stateless and can handle more than one logical unit per interface.