JN0-102 · Question #259
What are two valid match criteria for a routing policy? (Choose two.)
The correct answer is A. OSPF area ID B. prefix list. Routing policies use match criteria to select routes that meet specific conditions before applying actions. OSPF area ID and prefix lists are common criteria for route selection in routing policies.
Question
What are two valid match criteria for a routing policy? (Choose two.)
Options
- AOSPF area ID
- Bprefix list
- Cport
- Dtime-to-live (TTL)
How the community answered
(23 responses)- A87% (20)
- C4% (1)
- D9% (2)
Why each option
Routing policies use match criteria to select routes that meet specific conditions before applying actions. OSPF area ID and prefix lists are common criteria for route selection in routing policies.
Routing policies can match routes based on the OSPF area ID from which they were learned or to which they belong, allowing control over OSPF route redistribution.
A prefix list defines a set of IP prefixes that a routing policy can match against, allowing granular control over which routes are processed by the policy.
Port numbers are Layer 4 (transport layer) attributes, which are typically used in firewall filters, not routing policies that operate at Layer 3 (network layer).
Time-to-live (TTL) is a Layer 3 packet header field, used by devices to prevent infinite loops, and is not a criterion for matching routes in a routing policy.
Concept tested: Routing policy match criteria
Source: https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/topic-map/routing-policy-match-conditions.html
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