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350-401 Practice Question: Which two statements about EIGRP stub routing are…
Which two statements about EIGRP stub routing are true? (Choose two.)
⚠ Common exam trap
350-401 often tests the direction of stub configuration (spoke, not hub) and the default advertisement behavior (connected + summary), while confusing candidates with the 'receive-only' keyword that actually suppresses all advertisements.
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 stub router advertises only connected and summary routes by default.
Option A is correct because when the 'eigrp stub' command is configured without additional keywords, the router defaults to advertising only connected and summary routes to its EIGRP neighbors, which limits the routing information it propagates. Option D is correct because stub routing confines EIGRP queries to the stub router's local domain, preventing them from being forwarded to the stub, which reduces query scope and speeds up network convergence. Option B is incorrect because a stub router is explicitly not used as a transit router; it does not advertise routes learned from other EIGRP neighbors, so traffic cannot pass through it to reach other networks. Option C is incorrect because the 'eigrp stub' command is configured on the spoke (stub) routers in a hub-and-spoke topology, not on the hub router. Option E is incorrect because the 'receive-only' keyword configures the stub router to advertise no routes at all, not to advertise all its routes.
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 stub router advertises only connected and summary routes by default.
Why this is correct
EIGRP stub routing suppresses transit traffic by default, advertising only connected and summary routes to its neighbours. This satisfies the stem's requirement for a true statement: the stub router limits its advertised prefixes, preventing it from becoming a transit path while still sharing its directly attached and summarised networks.
- ✗
A stub router can still be used as a transit router for other EIGRP neighbors.
Why it's wrong here
Stub routing exists precisely to prevent a router advertising itself as a transit path; the stub router advertises only connected and summary routes, so neighbours never route through it. It is tempting because stub routers still form adjacencies and exchange routes with their hub, which looks like transit participation, but that is reachability, not forwarding.
- ✗
The 'eigrp stub' command is configured on the hub router in a hub-and-spoke topology.
Why it's wrong here
The eigrp stub command is configured on the spoke routers, which suppress transit advertisements toward the hub; configuring it on the hub would restrict the hub's own advertisements and break spoke reachability. It is tempting because the hub is the central device in the topology, so administrators assume configuration belongs there, but stub status applies to the leaf routers.
- ✓
EIGRP stub routing reduces query scoping and improves convergence.
Why this is correct
EIGRP stub routing advertises the router as a stub, so the hub stops sending queries to it for routes the stub cannot reach. This limits query propagation across the network, directly satisfying the query-scoping constraint and speeding convergence by preventing unnecessary recursive lookups.
- ✗
A stub router can be configured with the 'receive-only' keyword to advertise all its routes.
Why it's wrong here
The receive-only keyword makes a stub router advertise nothing, so it cannot advertise all its routes; that behaviour belongs to connected or summary advertisements. It is tempting because receive-only is a genuine stub option, correct when the router should forward no prefixes at all to its EIGRP neighbours.
Quick reference
Routing Protocol Comparison
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.