20+ practice questions focused on Architecture — one of the most tested topics on the ENCOR 350-401 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Architecture PracticeA network engineer is designing a campus network with high availability for critical services. Which Cisco technology enables traffic to be forwarded to an alternate next hop in the event of a first-hop router failure, without requiring any configuration changes on the hosts?
Explanation: HSRP (Hot Standby Router Protocol) is a Cisco-proprietary FHRP that allows multiple routers to share a virtual IP and MAC address, providing transparent failover. Hosts are configured with the virtual IP as their default gateway, so when the active router fails, the standby router takes over without any host configuration changes. This directly meets the requirement for high availability without host reconfiguration.
A company is deploying a wireless network in an office with high client density. Which Cisco architecture is best suited to handle client roaming without requiring a central controller for every roaming event?
Explanation: FlexConnect (option D) is the correct architecture because it allows client data traffic to be switched locally at the remote site, while the control plane remains centralized. This design eliminates the need for a central controller to process every roaming event, as clients can roam between FlexConnect APs using local switching and 802.11r (Fast Roaming) without requiring a WLC in the data path.
An enterprise is using OSPF in a multi-area design. Area 1 is a regular area, and Area 2 is a totally stubby area. Which LSA types are present in Area 2?
Explanation: In a totally stubby area, the ABR blocks Type 4 and Type 5 LSAs and replaces all Type 3 inter-area routes with a single default route (Type 3 LSA with link-state ID 0.0.0.0). Therefore, only Type 1 (router), Type 2 (network), and the default Type 3 LSAs are present. This matches option A.
A network engineer is troubleshooting a routing loop in an EIGRP network. Which mechanism is designed to prevent routing loops by causing a router to reject routes that are learned from a neighbor that is not the successor?
Explanation: The feasibility condition is a loop-prevention mechanism unique to EIGRP. It ensures that a router only accepts a route from a neighbor if that neighbor's reported distance (RD) to the destination is less than the router's own feasible distance (FD). This guarantees that the path through that neighbor is loop-free, effectively rejecting routes learned from any neighbor that is not the successor.
A company is implementing QoS in a network where voice traffic must have strict priority over all other traffic. Which queuing mechanism should be used on the outbound interface of a router to ensure voice packets are always sent first?
Explanation: Low Latency Queuing (LLQ) is the correct choice because it combines Class-Based Weighted Fair Queuing (CBWFQ) with a strict priority queue, ensuring that voice traffic (marked with EF or CS5) is always dequeued before any other traffic class. This guarantees low latency and jitter for real-time traffic, which is essential for voice quality.
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Practice all Architecture questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Architecture. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Architecture questions on the 350-401 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Architecture is tested as part of the ENCOR 350-401 blueprint. Practicing with targeted Architecture questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free 350-401 practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Architecture is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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