This 350-401 practice question tests your understanding of bgp. 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.
router bgp 65000
bgp router-id 10.0.0.1
neighbor 10.0.0.2 remote-as 65001
neighbor 10.0.0.2 route-map SET_MED out
!
route-map SET_MED permit 10
set metric 50
!
What is the effect of this configuration on routes advertised to 10.0.0.2?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
All routes sent to 10.0.0.2 will have the MED value set to 50.
Option A is correct because the route-map SET_MED is applied to outbound updates to neighbor 10.0.0.2, and the 'set metric 50' command sets the Multi-Exit Discriminator (MED) attribute to 50 for all routes advertised to that neighbor. The MED is a metric used to influence inbound traffic from the AS of the neighbor, and it is propagated to the neighbor's BGP table.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
All routes sent to 10.0.0.2 will have the MED value set to 50.
Why this is correct
Correct. The route-map sets MED on outbound updates.
Related concept
Read the scenario before looking for a memorised answer.
✗
Routes received from 10.0.0.2 will have their MED set to 50.
Why it's wrong here
Incorrect. The 'out' keyword applies to outbound updates.
✗
The local preference of routes sent to 10.0.0.2 is set to 50.
Why it's wrong here
Incorrect. set metric affects MED, not local preference.
✗
The configuration is invalid because MED cannot be set on outbound updates.
Why it's wrong here
Incorrect. MED can be set on outbound updates.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between outbound and inbound route-map application, and the trap here is confusing the 'set metric' command (which sets MED) with 'set local-preference' or assuming that MED cannot be set on outbound updates.
Trap categories for this question
Keyword trap
Incorrect. The 'out' keyword applies to outbound updates.
Detailed technical explanation
How to think about this question
MED is an optional non-transitive BGP attribute that is exchanged between ASes to influence inbound traffic decisions. When multiple entry points exist into an AS, a lower MED value is preferred, and the MED is typically compared only when paths come from the same neighboring AS. In real-world scenarios, ISPs use MED to signal preferred ingress points for traffic from a customer or peer, and the route-map in this configuration applies the same MED to all routes, overriding any default or previously set MED values.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
BGP — This question tests BGP — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: All routes sent to 10.0.0.2 will have the MED value set to 50. — Option A is correct because the route-map SET_MED is applied to outbound updates to neighbor 10.0.0.2, and the 'set metric 50' command sets the Multi-Exit Discriminator (MED) attribute to 50 for all routes advertised to that neighbor. The MED is a metric used to influence inbound traffic from the AS of the neighbor, and it is propagated to the neighbor's BGP table.
What should I do if I get this 350-401 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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