AZ-305 Design business continuity solutions Practice Test 3 — 15 Questions

Question 1

A company runs a web application on Azure VMs in a single region. They need to ensure that if the region fails, the VMs are replicated to another region and can be started automatically. Which Azure service should they use?

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

Accepted Answer

Azure Site Recovery. Azure Site Recovery (ASR) orchestrates replication, failover, and failback of Azure VMs from one region to another. It continuously replicates VM disks to the target region and, upon failover, automatically starts the replicated VMs, meeting the requirement for regional disaster recovery with automated startup.

Answer

Azure Backup

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Azure Traffic Manager

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Azure Load Balancer

Question 2

A company runs a critical application on Azure VMs in a single region. The database tier uses SQL Server on Azure VMs. They need to implement disaster recovery to a secondary region with an RPO of 30 seconds and an RTO of 10 minutes for the database, and an RPO of 5 minutes and RTO of 1 hour for the VMs. The solution must minimize data loss and be cost-effective. Which combination should they use?

Accepted Answer

Azure Site Recovery for VMs and SQL Server Always On Availability Groups with asynchronous commit. Azure Site Recovery (ASR) provides VM replication to a secondary region with an RPO of 5 minutes and RTO of 1 hour, meeting the VM requirements. SQL Server Always On Availability Groups with asynchronous commit can achieve an RPO of 30 seconds (or less) while minimizing cost by avoiding synchronous replication overhead, and it supports automatic failover for the database tier, meeting the 10-minute RTO.

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Azure Site Recovery for VMs and SQL Server Always On Availability Groups with synchronous commit

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Azure Site Recovery for VMs and SQL Server log shipping

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Azure Backup for VMs and SQL Server database mirroring

Question 3

A company runs a critical database on Azure SQL Database in the West US region. They need to implement disaster recovery to East US with an RPO of 1 minute and RTO of 1 hour. They also want to use the secondary database for read-only workloads during normal operations. The solution must be fully managed. Which Azure SQL Database feature should they enable?

Accepted Answer

Auto-failover group with read-scale. Auto-failover groups with read-scale (Option B) provide a fully managed disaster recovery solution with an RPO of 1 minute and RTO of 1 hour. They allow the secondary database in East US to be used for read-only workloads during normal operations via the read-scale listener endpoint. This meets all requirements: fully managed, low RPO/RTO, and read-only access to the secondary. Option A (Active geo-replication with failover group) does not support automatic failover and does not provide a read-scale endpoint for the secondary, so it does not meet the RTO requirement or the read-only workload requirement.

Answer

Active geo-replication with failover group

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Geo-restore

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Zone-redundant configuration

Question 4

A company runs an Azure SQL Database in a single region. They need to ensure that the database can be restored to any point in time within the last 90 minutes with a granularity of 1 minute. Which feature should they enable?

Accepted Answer

Point-in-time restore. Point-in-time restore (PITR) for Azure SQL Database automatically creates backups every 5-10 minutes and retains them for the default retention period of 7 days (configurable up to 35 days). This allows restoring the database to any second within the retention window, meeting the requirement of 1-minute granularity for the last 90 minutes. The feature is built-in and does not require any additional configuration beyond setting the desired retention period.

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Active geo-replication

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Auto-failover groups

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Long-term backup retention

Question 5

A company runs a critical application on Azure VMs and an Azure SQL Managed Instance in a single region. They need a disaster recovery solution with a Recovery Point Objective (RPO) of 5 minutes for the database and a Recovery Time Objective (RTO) of 2 hours for the entire stack. They want to minimize cost and use native Azure services. Which combination should they implement?

Accepted Answer

Azure Site Recovery for VMs and auto-failover groups for the database. Azure Site Recovery (ASR) provides orchestrated replication and failover for Azure VMs, meeting the 2-hour RTO for the entire stack, while auto-failover groups for Azure SQL Managed Instance enable automatic replication with an RPO of 5 seconds, meeting the 5-minute RPO requirement using the built-in distributed availability groups feature. This combination uses native Azure services without manual scripting, minimizing cost and complexity.

Answer

Azure Site Recovery for VMs and active geo-replication for the database

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Azure Backup for VMs and auto-failover groups for the database

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Deploy a second region with VMs and database replicas manually configured and Azure Traffic Manager

Question 6

A company runs a web application on Azure VMs in a single region. They need to ensure that if the region fails, the VMs are replicated to another region and can be started automatically. Which Azure service should they use?

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

Accepted Answer

Azure Front Door with active-active or active-passive routing and auto-failover groups for Azure SQL Database. Azure Front Door provides global HTTP(S) load balancing with automatic failover based on health probes, and when combined with auto-failover groups for Azure SQL Database, it ensures the entire application stack (web + database) fails over together. The auto-failover group replicates the database asynchronously to the secondary region and allows a user-configurable grace period to trade off between data loss and availability. This matches the requirement for automatic, coordinated failover of the full stack and traffic redirection.

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Azure Traffic Manager with active-passive and geo-replication for Azure SQL Database

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Azure Application Gateway with backend pools in multiple regions and SQL Database failover groups

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Azure Load Balancer with multiple regions and Azure SQL Database automatic failover

Question 7

A company runs a global e-commerce platform on Azure VMs in a single region. They need to replicate the VMs to a secondary region for disaster recovery. Recovery must be possible within 30 minutes of a failure. The VMs run custom software that must be started in a specific order (database tier before web tier). Which Azure service should they use to meet both the replication and orchestration requirements?

Accepted Answer

Azure Site Recovery with recovery plans. Azure Site Recovery (ASR) with recovery plans is the correct choice because it provides both VM replication to a secondary region and the ability to orchestrate the startup order of VMs. Recovery plans allow you to group VMs into tiers (e.g., database and web) and define dependencies, ensuring the database tier starts before the web tier. ASR meets the 30-minute recovery time objective (RTO) by enabling failover to the secondary region within that timeframe.

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Azure Backup with cross-region restore

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Azure Migrate with replication

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Azure Automation runbooks

Question 8

A mission-critical web application must tolerate a full Azure region outage. The business requires automatic failover and global HTTP acceleration. Which two components should be included in the design? (Choose 2.)

Accepted Answer

Deploy the application to at least two Azure regions.. Deploying the application to at least two Azure regions provides geographic redundancy, ensuring that if one entire region fails, the application can still operate from the other region. This is a fundamental requirement for tolerating a full region outage. Option B is correct because Azure Front Door provides global HTTP acceleration and automatic failover by using health probes to monitor endpoint health and routing traffic to healthy origins, which meets the business requirements for both automatic failover and performance.

Answer

Use only availability zones in one region.

Answer

Use Azure Bastion for failover routing.

Question 9

A database workload has an RPO of 15 minutes and an RTO of 4 hours. Cost is more important than near-zero data loss. Which design is usually more appropriate than synchronous multi-region replication?

Accepted Answer

Use scheduled backups or asynchronous replication aligned to the RPO/RTO.. The workload's RPO of 15 minutes and RTO of 4 hours, combined with a cost-sensitive requirement that deprioritizes near-zero data loss, makes synchronous multi-region replication overkill. Scheduled backups (e.g., every 15 minutes using Azure SQL Database automated backups with point-in-time restore) or asynchronous replication (e.g., Azure SQL Database active geo-replication with a recovery point objective of up to 5 seconds, but here we can tune it to meet 15 minutes) provide sufficient protection at a lower cost, avoiding the latency and expense of synchronous replication across regions.

Answer

Use synchronous replication across every Azure region.

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Run the database on a single VM with no backups.

Answer

Use a public DNS CNAME only.

Question 10

A company wants to back up on-premises SQL Server databases to Azure and be able to restore them to an on-premises server in case of a disaster. The backup must be encrypted and retained for 7 years for compliance. Which Azure service should they use?

Accepted Answer

Azure Backup with the MARS agent.. None of the provided options are correct. The appropriate Azure service for backing up on-premises SQL Server databases with application-consistent backups and long-term retention (7 years) is Azure Backup Server (MABS) or System Center Data Protection Manager (DPM). These tools are part of Azure Backup but allow application-aware backups of SQL Server. The MARS agent only supports file-level backups and does not provide application-consistent SQL backups. Azure Site Recovery is for replication and failover, not backup. Azure Database Migration Service is for migration. Azure Storage with incremental snapshots lacks backup orchestration and retention management capabilities.

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Azure Site Recovery.

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Azure Database Migration Service.

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Azure Storage with incremental snapshots.

Question 11

A business-critical App Service application must survive a full regional outage. The recovery design should fail over automatically based on endpoint health and avoid DNS-cache delay where possible. Which service should front the regional deployments?

Accepted Answer

Azure Front Door. Azure Front Door is the correct choice because it provides global HTTP/HTTPS load balancing with automatic failover across regions based on real-time endpoint health probes. It uses Anycast routing to direct traffic to the nearest healthy region, which avoids DNS-cache delay inherent in DNS-based solutions like Traffic Manager. This ensures sub-second failover and meets the requirement for a business-critical app that must survive a full regional outage.

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Azure Load Balancer

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Azure Application Security Groups

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Azure Traffic Manager only

Question 12

An Azure SQL Database supports a customer-facing application. The company requires automatic failover to a paired region with minimal administrative action. Which feature should be recommended?

Accepted Answer

Auto-failover group. Auto-failover groups in Azure SQL Database enable automatic, synchronous or asynchronous replication of databases to a paired region, with a built-in listener endpoint that handles transparent failover. This meets the requirement for minimal administrative action because failover can be triggered automatically based on the built-in grace period and health monitoring, without manual intervention.

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Zone-redundant storage only

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SQL elastic pool only

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Azure Backup vault only

Question 13

A solution stores critical VM backups in Azure. The company wants protection against accidental or malicious deletion of backups. Which two controls should be included?

Accepted Answer

Soft delete for Azure Backup. Soft delete for Azure Backup (Option C) is correct because it retains backup data for an additional 14 days after deletion, allowing recovery from accidental or malicious deletion. This feature is enabled by default for Recovery Services vaults and protects backup data even if the backup itself is deleted, providing a critical safety net against data loss.

Answer

Disabling backup alerts

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Storing all backups on the original VM disk

Question 14

Drag and drop the steps to implement Azure Backup for an Azure virtual machine into the correct order.

Accepted Answer

Create a Recovery Services vault, then define a backup policy, then assign the VM to the vault, then enable backup, then test the backup.. The correct sequence for implementing Azure Backup for an Azure VM is: first create a Recovery Services vault, then define a backup policy that specifies the backup schedule and retention, then assign the VM to the vault (which associates the VM with the vault and policy), then enable backup (which starts the protection), and finally test the backup to ensure it works correctly. This order ensures that each step has the necessary prerequisites completed before moving forward.

Answer

Create a Recovery Services vault, then assign the VM to the vault, then define a backup policy, then enable backup, then test the backup.

Answer

Create a Recovery Services vault, then define a backup policy, then enable backup, then assign the VM to the vault, then test the backup.

Answer

Create a Recovery Services vault, then define a backup policy, then assign the VM to the vault, then test the backup, then enable backup.

Question 15

Match each Azure database service to its primary use case.

Accepted Answer

Azure SQL Database: Fully managed relational database for modern cloud applications. Common Azure database services: Azure SQL Database (relational OLTP), Cosmos DB (globally distributed NoSQL), Azure Database for PostgreSQL (open-source relational), and Azure Cache for Redis (in-memory cache). Distractors swap definitions between services.

Answer

Azure SQL Database: Distributed cache for low-latency data access

Answer

Azure Cosmos DB: Fully managed SQL Server database with high availability