- A
A route-map with a 'deny' statement will drop the route if the match conditions are met.
A deny statement explicitly denies the route when the match conditions are satisfied.
- B
If a route does not match any sequence in a route-map, it is implicitly denied.
Route-maps have an implicit deny all at the end; unmatched routes are denied.
- C
The 'continue' clause forces the route-map to evaluate the next sequence number.
Why wrong: The 'continue' clause jumps to a specified sequence number, not necessarily the next one.
- D
Route-maps can only be applied to BGP neighbors.
Why wrong: Route-maps can be applied to many protocols, including RIP, EIGRP, OSPF (via redistribution), and PBR.
- E
The sequence numbers in a route-map are evaluated in descending order.
Why wrong: Sequence numbers are evaluated in ascending order (lowest first).
300-410 Route Maps and Route Filtering Practice Question
This 300-410 practice question tests your understanding of route maps and route filtering. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO statements about route-maps used for route filtering are true? (Choose TWO.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
A route-map with a 'deny' statement will drop the route if the match conditions are met.
Route-maps permit or deny routes based on match conditions, and an implicit deny all exists at the end. If no match is found, the route is denied. The sequence number determines the order of evaluation; lower numbers are processed first. The 'continue' clause allows jumping to a different sequence, not the next sequence automatically. A route-map can be used with multiple protocols, but it is not protocol-specific by default.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A route-map with a 'deny' statement will drop the route if the match conditions are met.
Why this is correct
A deny statement explicitly denies the route when the match conditions are satisfied.
Related concept
OSPF neighbours must agree on key parameters.
- ✓
If a route does not match any sequence in a route-map, it is implicitly denied.
Why this is correct
Route-maps have an implicit deny all at the end; unmatched routes are denied.
Related concept
OSPF neighbours must agree on key parameters.
- ✗
The 'continue' clause forces the route-map to evaluate the next sequence number.
Why it's wrong here
The 'continue' clause jumps to a specified sequence number, not necessarily the next one.
- ✗
Route-maps can only be applied to BGP neighbors.
- ✗
The sequence numbers in a route-map are evaluated in descending order.
Why it's wrong here
Sequence numbers are evaluated in ascending order (lowest first).
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
Got this wrong? Here's your next step.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
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FAQ
Questions learners often ask
What does this 300-410 question test?
Route Maps and Route Filtering — This question tests Route Maps and Route Filtering — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: A route-map with a 'deny' statement will drop the route if the match conditions are met. — Route-maps permit or deny routes based on match conditions, and an implicit deny all exists at the end. If no match is found, the route is denied. The sequence number determines the order of evaluation; lower numbers are processed first. The 'continue' clause allows jumping to a different sequence, not the next sequence automatically. A route-map can be used with multiple protocols, but it is not protocol-specific by default.
What should I do if I get this 300-410 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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Last reviewed: Jun 18, 2026
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