Microsoft Microsoft Certifications AZ-204 Questions & Answers

• Question 261:

  You are developing an Azure-based web application. The application goes offline periodically to perform offline data processing. While the application is offline, numerous Azure Monitor alerts fire which result in the on-call developer being

  paged.

  The application must always log when the application is offline for any reason.

  You need to ensure that the on-call developer is not paged during offline processing.

  What should you do?

  A. Add Azure Monitor alert processing rules to suppress notifications.

  B. Create an Azure Monitor Metric Alert.

  C. Build an Azure Monitor action group that suppresses the alerts.

  D. Disable Azure Monitor Service Health Alerts during offline processing.

  Correct Answer: C

  You can use alert processing rules to add action groups or remove (suppress) action groups from your fired alerts. Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/alerts/alerts-action-rules

• Question 262:

  You a web application that provides access to legal documents that are stored on Azure Blob Storage with version level immutability policies. Documents are protected with both time-based policies legal hold policies. All time--based retention

  policies have Allow Protected Append Writes property enabled.

  You have a requirement to prevent the user from attempting to perform operations that would fail only a legal is in effect and when all other are expired

  You reed to meet the requirement.

  Which two operations you prevent?

  A. adding data to documents

  B. deleting documents

  C. creating documents

  D. overwriting existing documents

  Correct Answer: BD

  The Append Block operation is permitted only for policies with the allowProtectedAppendWrites or allowProtectedAppendWritesAll property enabled.

  The AllowProtectedAppendWrites property setting allows for writing new blocks to an append blob while maintaining immutability protection and compliance. If this setting is enabled, you can create an append blob directly in the policy-protected container, and then continue to add new blocks of data to the end of the append blob with the Append Block operation. Only new blocks can be added; any existing blocks can't be modified or deleted. Enabling this setting doesn't affect the immutability behavior of block blobs or page blobs.

  Reference: https://learn.microsoft.com/en-us/azure/storage/blobs/immutable-time-based-retention-policy-overview#allow-protected-append-blobs-writes

• Question 263:

  You are building a web application that performs image analysis on user photos and returns metadata containing objects identified. The image analysis is very costly in terms of time and compute resources. You are planning to use Azure

  Redo Cache so Cache uploads do not need to be reprocessed.

  In case of an Azure data center outage metadata loss must be kept to a minimum.

  You need to configure the Azure Redis cache instance.

  Which two actions should you perform? Each correct answer presents part of the solution.

  NOTE: Each correct selection in worth one point.

  A. Configure Azure Redis with persistence

  B. Configure second storage account for persistence

  C. Set backup frequency to the minimum value

  D. Configure Azure Redis with RDS persistence

  Correct Answer: BD

• Question 264:

  You are updating an application that stores data on Azure and uses Azure Cosmos DB for storage. The application stores data in multiple documents associated with a single username.

  The application requires the ability to update multiple documents for a username in a single ACID operation.

  You need to configure Azure Cosmos DB.

  Which two actions should you perform? Each correct answer presents part of the solution.

  NOTE: Each correct selection is worth one point.

  A. Create a collection sharded on username to store documents.

  B. Configure Azure Cosmos DB to use the Gremlin API.

  C. Create an unsharded collection to store documents.

  D. Configure Azure Cosmos DB to use the MongoDB API.

  Correct Answer: CD

  Explanation:

  C: Multi-document transactions, Requirements

  Multi-document transactions are supported within an unsharded collection in API version 4.0. Multi-document transactions are not supported across collections or in sharded collections in 4.0.

  D: In Azure Cosmos DB for MongoDB, operations on a single document are atomic. Multi-document transactions enable applications to execute atomic operations across multiple documents. It offers "all-or-nothing" semantics to the

  operations. On commit, the changes made inside the transactions are persisted and if the transaction fails, all changes inside the transaction are discarded.

  Multi-document transactions follow ACID semantics:

  Atomicity: All operations treated as one Consistency: Data committed is valid Isolation: Isolated from other operations Durability: Transaction data is persisted when client is told so

  Reference: https://learn.microsoft.com/en-us/azure/cosmos-db/mongodb/use-multi-document-transactions

• Question 265:

  You develop Azure Durable Functions to manage vehicle loans.

  The loan process includes multiple actions that must be run in a specified order. One of the actions includes a customer credit check process, which may require multiple days to process.

  You need to implement Azure Durable Functions for the loan process.

  Which Azure Durable Functions type should you use?

  A. orchestrator

  B. client

  C. activity

  D. entity

  Correct Answer: A

  Durable Functions is an extension of Azure Functions. You can use an orchestrator function to orchestrate the execution of other Durable functions within a function app. Orchestrator functions have the following characteristics:

  Orchestrator functions define function workflows using procedural code. No declarative schemas or designers are needed.

  Orchestrator functions can call other durable functions synchronously and asynchronously. Output from called functions can be reliably saved to local variables.

  Orchestrator functions are durable and reliable. Execution progress is automatically checkpointed when the function "awaits" or "yields". Local state is never lost when the process recycles or the VM reboots.

  Orchestrator functions can be long-running. The total lifespan of an orchestration instance can be seconds, days, months, or never-ending.

  Reference: https://learn.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-orchestrations

• Question 266:

  You are developing an Azure App Service web app.

  The web app must securely store session information in Azure Redis Cache.

  You need to connect the web app to Azure Redis Cache.

  Which three Azure Redis Cache properties should you use? Each correct answer presents part of the solution.

  Each correct selection is worth one point.

  A. SSL port

  B. Subscription name

  C. Location

  D. Host name

  E. Access key

  F. Subscription id

  Correct Answer: ACD

  https://learn.microsoft.com/en-us/azure/azure-cache-for-redis/cache-web-app-howto

• Question 267:

  You develop a Python application for image rendering that uses GPU resources to optimize rendering processes. You deploy the application to an Azure Container Instances (ACI) Linux container.

  The application requires a secret value to be passed when the container is started. The value must only be accessed from within the container.

  You need to pass the secret value.

  What are two possible ways to achieve this goal? Each correct answer presents a complete solution.

  NOTE: Each correct selection is worth one point.

  A. Create an environment variable Set the secureValue property to the secret value.

  B. Add the secret value to the container image. Use a managed identity.

  C. Add the secret value to the application code Set the container startup command.

  D. Add the secret value to an Azure Blob storage account. Generate a SAS token.

  E. Mount a secret volume containing the secret value in a secrets file.

  Correct Answer: AE

  A: Secure environment variables Another method (another than a secret volume) for providing sensitive information to containers (including Windows containers) is through the use of secure environment variables.

  E: Use a secret volume to supply sensitive information to the containers in a container group. The secret volume stores your secrets in files within the volume, accessible by the containers in the container group. By storing secrets in a secret

  volume, you can avoid adding sensitive data like SSH keys or database credentials to your application code.

  Reference:

  https://docs.microsoft.com/en-us/azure/container-instances/container-instances-volume-secret

• Question 268:

  You need to test the availability of the corporate website. Which two test types can you use?

  A. Custom testing using the TrackAvailability API method

  B. Standard

  C. URL Ping

  D. Multi-step

  Correct Answer: AB

• Question 269:

  You are building a web application that performs image analysis on user photos and returns metadata containing objects identified. The image is very costly in terms of time and compute resources. You are planning to use Azure Redis Cache

  so duplicate uploads do not need to be reprocessed.

  In case of an Azure data center outage, metadata loss must be kept to a minimum. You need to configure the Azure Redis cache instance.

  Which two actions should you perform?

  A. Configure Azure Redis with AOF persistence.

  B. Configure Azure Redis with RDB persistence.

  C. Configure second storage account for persistence.

  D. Set backup frequency to the minimum value.

  Correct Answer: AC

  "RDB is NOT good if you need to minimize the chance of data loss in case Redis stops working". source: https://redis.io/docs/management/persistence/

  since the question doesn't mention ZRS for Redis cache, we can use AOF with a 2nd storage to store replica cache data. check the config with AOF: https://learn.microsoft.com/en-us/azure/azure-cache-for-redis/cache-how-to-premiumpersistence#set-up-data-persistence

• Question 270:

  You are developing an Azure Durable Function to manage an online ordering process.

  The process must call an external API to gather product discount information.

  You need to implement Azure Durable Function.

  Which Azure Durable Function types should you use? Each correct answer presents part of the solution

  NOTE: Each correct selection is worth ore point

  A. Orchestrator

  B. Entity

  C. Activity

  D. Client

  Correct Answer: AB

  The Durable Functions extension exposes a set of built-in HTTP APIs that can be used to perform management tasks on orchestrations, entities, and task hubs. These HTTP APIs are extensibility webhooks that are authorized by the Azure Functions host but handled directly by the Durable Functions extension.

  Reference: https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-http-api