The answer is that the MED value of all routes advertised to neighbor 10.1.1.1 is set to 50. This is correct because the route-map SET-MED is applied as an outbound filter to that specific BGP neighbor, and the `set metric 50` command directly modifies the multi-exit discriminator attribute for every prefix sent in the update. On the ENCOR 350-401 exam, this configuration tests your understanding of how BGP path attributes are manipulated using route-maps, specifically the distinction between inbound and outbound policy application. A common trap is confusing MED with local preference—remember that MED is a metric sent to an external neighbor to influence its inbound routing decision, while local preference is an internal attribute. The `bgp default local-preference 150` in the configuration is a red herring here, as it does not affect outbound updates to an eBGP peer. Memory tip: MED is the "exit" discriminator, so think of it as the "price tag" you attach to routes leaving your AS—lower is better for the receiving neighbor.
350-401 Infrastructure Security Practice Question
This 350-401 practice question tests your understanding of infrastructure security. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Examine the following BGP configuration on a Cisco IOS-XE router:
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Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The MED value of routes advertised to 10.1.1.1 is set to 50.
The route-map SET-MED is applied outbound to neighbor 10.1.1.1. It sets the MED (multi-exit discriminator) to 50 for all routes advertised to that neighbor.
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.
✓
The MED value of routes advertised to 10.1.1.1 is set to 50.
Why this is correct
Correct. The route-map sets the MED attribute to 50.
The local preference of routes received from 10.1.1.1 is set to 150.
Why it's wrong here
Incorrect. Local preference is set globally, not by this route-map.
✗
The route-map filters routes; only those with metric 50 are advertised.
Why it's wrong here
Incorrect. The route-map sets the metric, it does not filter.
✗
The password is applied to the BGP session, but the route-map is ignored due to the password.
Why it's wrong here
Incorrect. Password and route-map are independent.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 350-401 question in full detail.
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 350-401 OSPF questions on adjacency and route selection.
Infrastructure Security — This question tests Infrastructure Security — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: The MED value of routes advertised to 10.1.1.1 is set to 50. — The route-map SET-MED is applied outbound to neighbor 10.1.1.1. It sets the MED (multi-exit discriminator) to 50 for all routes advertised to that neighbor.
What should I do if I get this 350-401 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 350-401 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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Question Discussion
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