This 350-601 practice question tests your understanding of 350-601 exam topics. 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.
An engineer needs to enable equal-cost multipath (ECMP) routing in a spine-leaf fabric using OSPF. Which OSPF feature allows load balancing across multiple equal-cost paths?
OSPF network type
Why wrong: Network type affects adjacency, not ECMP.
OSPF area type
Why wrong: Area type does not enable ECMP.
maximum-paths command
This command sets the number of ECMP paths.
OSPF cost metric
Why wrong: Cost affects path selection, not ECMP.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
maximum-paths command
ECMP is enabled by default in OSPF on NX-OS, but the maximum number of equal-cost paths can be configured with the 'maximum-paths' command.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
OSPF network type
Why it's wrong here
Network type affects adjacency, not ECMP.
OSPF area type
Why it's wrong here
Area type does not enable ECMP.
maximum-paths command
Why this is correct
This command sets the number of ECMP paths.
Related concept
OSPF neighbours must agree on key parameters.
OSPF cost metric
Why it's wrong here
Cost affects path selection, not ECMP.
Common exam traps
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
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.
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
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
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 350-601 OSPF questions on adjacency and route selection.
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FAQ
OSPF neighbours must agree on key parameters.
The correct answer is: maximum-paths command — ECMP is enabled by default in OSPF on NX-OS, but the maximum number of equal-cost paths can be configured with the 'maximum-paths' command.
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 350-601 OSPF questions on adjacency and route selection.
OSPF neighbours must agree on key parameters.
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Last reviewed: Jul 4, 2026
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