AZ-305 Practice Test 21 — 15 Questions

Question 1

A global e-commerce platform uses Azure Cosmos DB for its product catalog. The application requires multi-region writes to provide low-latency updates from any geographic location. Two users may update the same product item concurrently, so the solution must automatically resolve conflicts. For real-time inventory checks, reads must be strongly consistent, while product description reads can be eventually consistent. Which Cosmos DB configuration should they choose?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

SQL API with multi-region writes, last-writer-wins conflict resolution, and per-request strong consistency. The SQL API in Cosmos DB supports multi-region writes with last-writer-wins (LWW) conflict resolution using a timestamp or custom property, which automatically resolves concurrent updates to the same product item. Per-request strong consistency allows inventory reads to achieve linearizability by setting the consistency level at the request level, while product description reads can use the default session or eventual consistency for performance. This combination meets all requirements: multi-region writes, automatic conflict resolution, and the ability to mix strong and eventual consistency on a per-request basis.

Answer

MongoDB API with multi-region writes and automatic conflict resolution

Answer

Table API with multi-region writes and strong consistency

Answer

Cassandra API with multi-region writes and strong consistency

Question 2

You are designing a data lake for advanced analytics in Azure. The data includes structured, semi-structured, and unstructured data. The solution must support schema-on-read and have the ability to query using SQL. Which Azure service should you choose?

Accepted Answer

Azure Data Lake Storage Gen2.. Azure Data Lake Storage Gen2 (ADLS Gen2) combines Blob Storage with a hierarchical namespace, enabling schema-on-read for structured, semi-structured, and unstructured data. It supports SQL-based querying via Azure Synapse Analytics, Azure Databricks, or PolyBase, making it ideal for advanced analytics scenarios.

Answer

Azure Blob Storage.

Answer

Azure SQL Database.

Answer

Azure Cosmos DB.

Question 3

Your organization uses Microsoft Entra ID and requires that all external users accessing resources must be approved by a designated reviewer. You need to automate the review process for external identities. What should you implement?

Accepted Answer

Microsoft Entra access reviews. Microsoft Entra access reviews allow you to automate the periodic review of external identities, ensuring that only approved users retain access. This feature directly supports the requirement for a designated reviewer to approve or deny external users, with automated reminders and results. It is the correct choice because it is purpose-built for governance of external identities in Entra ID.

Answer

Microsoft Purview

Answer

Privileged Identity Management (PIM)

Answer

Conditional Access

Question 4

A company plans to deploy multiple virtual machines (VMs) across two Azure regions for high availability. The VMs will host a stateless web application that must be accessible via a single DNS endpoint. The solution must automatically route traffic to the nearest region with available capacity and provide failover if a region becomes unhealthy. Which Azure service should they use to meet these requirements?

Accepted Answer

Azure Traffic Manager. Azure Traffic Manager is a DNS-based traffic load balancer that distributes traffic to the nearest region with available capacity using the Performance traffic-routing method, and it automatically fails over to the next healthy endpoint when a region becomes unhealthy. It operates at the DNS level, returning the appropriate endpoint IP based on the client's DNS resolver location and endpoint health probes, making it ideal for stateless web applications requiring a single DNS endpoint across regions.

Answer

Azure Front Door

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Azure Load Balancer

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Azure Application Gateway

Question 5

A company deploys a web application on multiple Azure VMs in a single region. They need to distribute incoming HTTP and HTTPS traffic across the VMs, offload SSL/TLS termination, and maintain session persistence (sticky sessions) so that all requests from a user session go to the same backend VM. Which Azure load balancing solution should they use?

Accepted Answer

Azure Application Gateway. Azure Application Gateway is a Layer 7 load balancer that can distribute HTTP/HTTPS traffic, offload SSL/TLS termination, and support session persistence via cookie-based affinity (sticky sessions). These capabilities directly match the requirements, making it the correct choice.

Answer

Azure Load Balancer

Answer

Azure Traffic Manager

Answer

Azure Front Door

Question 6

Your organization uses Microsoft Defender for Cloud to assess the security posture of Azure resources. You need to ensure that all Azure subscriptions are covered by a single continuous export configuration that sends security alerts to a Log Analytics workspace. What should you do?

Accepted Answer

Configure continuous export at the management group level.. Continuous export can be configured at the subscription level or management group scope. By configuring it at the management group level, all subscriptions under that management group inherit the export settings. This provides a single configuration point.

Answer

Use Azure Policy to deploy continuous export settings to all subscriptions.

Answer

Create an Azure Automation runbook to export settings to all subscriptions.

Answer

Configure continuous export in each subscription individually.

Question 7

Which THREE components are required to implement a complete monitoring solution with Azure Monitor? (Choose three.)

Accepted Answer

Alert rules to notify on conditions. Alert rules (C) are a core component of a complete monitoring solution because they define conditions that trigger notifications or automated actions when monitored metrics or log data cross thresholds. Without alert rules, collected data remains passive and cannot proactively inform administrators of issues, making the solution incomplete.

Answer

Application Insights for every application

Answer

Azure Policy assignments

Question 8

Which THREE considerations are important when designing a data archiving solution for Azure Storage to optimize costs?

Accepted Answer

Consider early deletion penalties for data moved to archive tier.. Azure Archive tier has a minimum storage duration of 180 days; deleting or moving data before that incurs an early deletion penalty equal to the cost of the remaining days. This is critical for cost optimization as it prevents unexpected charges from short-lived data.

Answer

Use the hot tier for all data to ensure high performance.

Answer

Use geo-redundant storage (GRS) for all archive data.

Question 9

Your company is designing a governance strategy for Azure. You need to ensure that all resource groups in a subscription are created with a specific naming convention and mandatory tags. Which THREE services or features should you use together? (Choose three.)

Accepted Answer

Azure Blueprints. Azure Blueprints is correct because it enables the orchestrated deployment of Azure Policy, RBAC, and resource templates as a single composable artifact. By defining a blueprint that includes a policy for naming conventions and mandatory tags, you can enforce these requirements consistently across all resource groups within a subscription or management group hierarchy.

Answer

Azure RBAC

Answer

Resource Locks

Question 10

Your company has a web application deployed on Azure App Service that experiences periodic traffic spikes. You need to ensure the application scales out quickly without manual intervention. The solution must minimize cost during low-traffic periods. What should you configure?

Accepted Answer

Configure Autoscale rules based on CPU or memory metrics. Autoscale rules based on CPU or memory metrics allow the App Service to automatically increase or decrease the number of instances in response to traffic spikes, meeting the requirement for quick scaling without manual intervention. By scaling down during low-traffic periods, it minimizes cost, as you only pay for the instances you use. This is the native Azure App Service scaling feature that directly addresses the need for elastic, cost-effective scaling.

Answer

Enable pre-warming in the App Service plan

Answer

Deploy the app to a Virtual Machine Scale Set

Answer

Manually increase the instance count before expected spikes

Question 11

Which THREE of the following are considerations when designing a storage solution for a high-availability application on Azure?

Accepted Answer

Recovery Point Objective (RPO) and Recovery Time Objective (RTO). RPO and RTO are fundamental design considerations for any high-availability application. RPO defines the maximum acceptable data loss (measured in time), which directly influences the choice of backup frequency and replication type (e.g., synchronous vs. asynchronous). RTO defines the maximum acceptable downtime, which dictates the failover mechanism and infrastructure redundancy (e.g., active-passive vs. active-active). Both metrics must be explicitly defined before selecting a storage redundancy tier or disaster recovery strategy.

Answer

Data encryption at rest using Azure Storage Service Encryption

Answer

Data striping with RAID 0 for performance

Question 12

Which THREE Azure Monitor capabilities can be used to detect and diagnose performance issues in a multi-tier application?

Accepted Answer

Live Metrics Stream in Application Insights. Live Metrics Stream in Application Insights (Option C) provides real-time monitoring of application performance metrics, such as request rates, response times, and failure rates, with sub-second latency. This allows immediate detection of performance issues as they occur, making it ideal for diagnosing live problems in a multi-tier application.

Answer

Azure Monitor Workbooks

Answer

Azure Policy

Question 13

Refer to the exhibit. An administrator reviews the backup status of a VM. The last backup failed. What is the most likely cause?

Accepted Answer

The VM was deallocated at the time of backup.. When a VM is deallocated (stopped and deallocated in Azure), the Azure Backup service cannot create a VM-consistent snapshot because the VM is not running. Backup attempts for deallocated VMs will fail with an error indicating that the VM is not in a running state. This is a common cause of backup failures in Azure.

Answer

The Recovery Services vault is in a different region.

Answer

The backup policy does not exist.

Answer

The source resource ID is missing.

Question 14

Which THREE should you consider when designing a monitoring solution for a critical application that requires high availability and low latency? (Choose three.)

Accepted Answer

Data volume and associated costs. Monitoring data volume directly impacts cost, especially in Azure Monitor where data ingestion and retention are billed per GB. For a critical application with high availability and low latency, you must balance the granularity of monitoring data against budget constraints to avoid unexpected costs that could compromise operational sustainability.

Answer

Dashboard visual appeal and color scheme

Answer

Custom metric creation for all application counters

Question 15

Refer to the exhibit. You run the Azure Resource Graph query shown. A colleague asks why the query returns no results even though there are VMs in the subscription. The VMs use managed disks with Premium_LRS. What is the most likely reason for the empty result set?

Accepted Answer

The resource type string is case-sensitive; it should be 'Microsoft.Compute/virtualMachines'. The query specifies 'microsoft.compute/virtualmachines' (all lowercase), but the correct casing includes capital letters: 'Microsoft.Compute/virtualMachines'. Option A is wrong because Premium_LRS is a valid storage account type. Option C is wrong because the query limits to 10 results, which is fine. Option D is wrong because the query does not filter by name.

Answer

The storage account type is incorrectly specified; it should be 'Premium_ZRS'

Answer

The 'limit 10' clause restricts too many results; remove the limit

Answer

The 'name' property does not exist; use 'properties.name' instead