AZ-204 Router R1 Cannot Reach R3 Practice Questions

Common Traps on Router R1 Cannot Reach R3 Practice Questions

·Check both forward and return paths.
·A correct-looking route can still fail if the next hop is unreachable.
·Administrative distance and longest-prefix match can change which route is used.

Sample Questions

You are developing a web app that authenticates users via Microsoft Entra ID. The app needs to read the user's profile and send emails on their behalf. You want to minimize user consent prompts. Which OAuth 2.0 grant type should you use?

Explanation: The Authorization Code flow with PKCE (Proof Key for Code Exchange) is the recommended grant type for web apps and single-page apps. It allows requesting delegated permissions (scopes) and supports refresh tokens, enabling the app to access resources on behalf of the user. With PKCE, consent is typically required only once per user and app combination, minimizing prompts.

You are developing an Azure Function that processes messages from an Azure Service Bus queue. The function uses a Service Bus queue trigger and runs on a Consumption Plan. The queue receives a high volume of messages in bursts. You need to ensure that the function scales out to handle the load but does not exceed 10 concurrent instances. Which configuration should you apply?

Explanation: Azure Functions with Service Bus triggers have configuration options for scaling. The key property is 'maxConcurrentCalls' which controls how many messages are processed concurrently per instance. However, to limit the number of function app instances, you can set the 'WEBSITE_MAX_INSTANCES' app setting. For Service Bus triggers, you can also set 'maxMessageBatchSize' but that relates to batch processing per instance, not instance count.

You are developing a web application that relies on a third-party weather API. The API has a rate limit of 10 requests per second per API key. You need to ensure your application never exceeds this limit and also caches responses for 10 minutes to reduce call frequency. Which combination of Azure services should you implement?

Explanation: Azure API Management can be used as a gateway to the third-party API, where you configure rate limiting policies to enforce the 10 requests/second limit. Additionally, caching policies in API Management can store responses and serve cached copies for subsequent requests within the TTL, reducing calls to the backend.

You are developing a web API that must authenticate requests using Microsoft Entra ID (Microsoft Entra ID) and OAuth 2.0 bearer tokens. You want to validate the token in your API code. Which library should you use?

Explanation: Microsoft.Identity.Web is the recommended library for adding Microsoft Entra ID authentication to ASP.NET Core APIs. It handles token validation, policy configuration, and integration with the pipeline. MSAL is for acquiring tokens from an application. ADAL.NET is deprecated and not recommended. Azure.Identity is for credential-based authentication (e.g., to Azure resources), not for token validation.

You are developing a .NET Core application that stores session state data. The data is infrequently updated but must be read quickly for every user request. You need a serverless, globally distributed storage solution with low latency reads. Which Azure storage solution should you use?

Explanation: Azure Cosmos DB with SQL API provides low-latency reads, global distribution, and a serverless capacity mode, making it a great fit for session state with fast reads and rare writes. Table Storage has no latency SLA, Redis Cache is not serverless (though PaaS), and Blob Storage is not optimized for small, frequent read operations.

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Frequently asked questions

How do "Router R1 Cannot Reach R3 Practice Questions" appear on the real AZ-204?

Practise routing and connectivity troubleshooting scenarios involving R1, R2, R3, static routes, OSPF, next hops and routing tables. These appear throughout the AZ-204 and require you to apply your knowledge, not just recall facts.

How many scenario questions are on the AZ-204 exam?

Cisco doesn't publish an exact breakdown, but scenario-based questions (especially exhibit and command-output formats) make up a significant portion of the AZ-204. Practicing each scenario type ensures you're ready for any format.

Are these AZ-204 scenario practice questions free?

Yes — all scenario practice on Courseiva is completely free. Sign up for a free account to track your progress and see which scenario types you've mastered.

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