JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2022) — Question 35

What happens when a packet matches a static route with the next hop parameter set to reject?

Answer options

• A. The system silently drops the packet
• B. An ICMP message is sent to the source and the packet is forwarded
• C. An ICMP message is sent to the source and the packet is dropped
• D. The packet is forwarded and the packet is marked as rejected in the header

Correct answer: C

Explanation

When a packet matches a static route with the next hop set to reject, an ICMP message is generated to notify the source that the packet has been dropped. The other options are incorrect because option A implies the packet is dropped without notification, option B suggests the packet is forwarded instead of dropped, and option D indicates that the packet is forwarded which contradicts the reject action.