AZ-305 Practice Test 42 — 15 Questions

Question 1

A company runs a multi-tier application on Azure virtual machines (VMs) in the West US region. The application consists of a web tier, an application tier, and a database tier. They need to implement a disaster recovery plan to a secondary region (East US) with a recovery point objective (RPO) of 5 minutes and a recovery time objective (RTO) of 15 minutes. The VMs must be recovered in the correct order: database tier first, then application tier, then web tier. The company also wants to test the recovery process periodically without affecting production. They need to ensure that after failover, the VMs retain their IP addresses to minimize DNS propagation delays. Which combination of Azure Site Recovery features should they use?

Accepted Answer

Use Azure Site Recovery with a replication policy of 30-second frequency, create multi-VM consistency groups for each tier, build a recovery plan with script actions for ordering and static IP mapping, and use test failover for drills. Option B is correct because it meets all requirements: a 30-second replication policy achieves the 5-minute RPO, multi-VM consistency groups ensure crash-consistent recovery across tiers, script actions in the recovery plan enforce the correct startup order (database first, then app, then web), static IP mapping retains IP addresses after failover, and test failover allows non-disruptive drills. This combination of features directly addresses the RPO, RTO, ordering, IP retention, and testing needs.

Answer

Use Azure Site Recovery with a replication policy of 5-minute frequency, configure a recovery plan with manual ordering, and rely on default IP assignment

Answer

Use Azure Site Recovery with a replication policy of 15-minute frequency and configure manual IP mapping after failover

Answer

Use Azure Backup with daily snapshots and a geo-restore option, then manually restore VMs in order

Question 2

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.. Option A is correct because 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 3

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.

Answer

Zone-redundant storage only

Answer

SQL elastic pool only

Answer

Azure Backup vault only

Question 4

Match each Azure database service to its primary use case.

Question 5

A company has an on-premises Hyper-V environment with 20 virtual machines running various workloads. They want to use Azure as a disaster recovery site. The required recovery point objective (RPO) is 15 minutes, and the recovery time objective (RTO) is 2 hours. They want to automate failover and failback. Which Azure service should they use?

Accepted Answer

Azure Site Recovery. Azure Site Recovery (ASR) is the correct service because it provides orchestrated replication, failover, and failback for Hyper-V VMs to Azure as a DR site. It supports the required RPO of 15 minutes (using near-synchronous replication with change tracking) and RTO of 2 hours (via automated recovery plans), and it natively automates both failover and failback processes without additional scripting.

Answer

Azure Migrate

Answer

Azure Backup

Answer

Azure Recovery Services Vault

Question 6

A company runs a critical application on Azure VMs in a single region. The application writes data to Azure SQL Database (PaaS) and Azure Blob Storage. The company needs a disaster recovery plan with an RPO of less than 5 minutes for the database and less than 15 minutes for the blob storage, and an RTO of less than 1 hour for the entire solution. What should they recommend?

Accepted Answer

Use Azure Site Recovery for VMs, active geo-replication for Azure SQL Database, and read-access geo-redundant storage (RA-GRS) for Blob Storage.. Option C is correct because Azure Site Recovery provides the VM replication needed to meet the RTO of under 1 hour, active geo-replication for Azure SQL Database offers a configurable RPO of as low as 5 seconds (well under the 5-minute requirement), and RA-GRS for Blob Storage provides read-access to a secondary region with an RPO typically under 15 minutes, enabling fast failover and read access during a disaster.

Answer

Use Azure Site Recovery for VMs, geo-replication for Azure SQL Database, and geo-redundant storage (GRS) for Blob Storage.

Answer

Use Azure Backup for VMs, geo-redundant storage for SQL Database backups, and geo-redundant storage for Blob Storage.

Answer

Use Azure Front Door with multi-region deployment of VMs and Azure Cosmos DB for the database.

Question 7

A company runs a critical application on Azure VMs in the West US region. They need to protect against a regional disaster using Azure Site Recovery. The VMs use unmanaged disks. The recovery point objective (RPO) must be 15 minutes and the recovery time objective (RTO) must be 1 hour. Additionally, they must be able to perform quarterly disaster recovery drills that do not affect the production environment. Which configuration should they use in Azure Site Recovery?

Accepted Answer

Set up replication with a 15-minute snapshot frequency and perform test failover for drills.. Option A is correct because Azure Site Recovery supports replication of Azure VMs with unmanaged disks, and a 15-minute snapshot frequency meets the RPO requirement. Test failover allows quarterly disaster recovery drills without impacting the production environment, as it creates isolated copies of VMs in a separate network for validation.

Answer

Use Azure Backup for VM replication and perform restore drills.

Answer

Configure a recovery plan with a pre-script to take a snapshot every 15 minutes.

Answer

Enable multi-VM consistency group with a 15-minute consistency frequency.

Question 8

A company runs a critical Azure SQL Database in the West US region. They need a disaster recovery solution that automatically fails over to a secondary region (East US) with a recovery point objective (RPO) of 5 seconds and a recovery time objective (RTO) of less than 1 hour. Additionally, they want to offload read-only workloads to the secondary database during normal operations. Which Azure SQL Database feature should they enable?

Accepted Answer

Active geo-replication with failover groups. Active geo-replication with failover groups is the correct choice because it provides automatic, asynchronous replication of an Azure SQL Database to a secondary region (East US) with an RPO of up to 5 seconds and an RTO of less than 1 hour. Additionally, it supports readable secondary replicas, allowing read-only workloads to be offloaded to the secondary database during normal operations, meeting all stated requirements.

Answer

Point-in-time restore

Answer

Long-term backup retention

Answer

Always On availability groups (self-managed)

Question 9

A company runs a critical SQL Server database on Azure Virtual Machines in a single region. They need a disaster recovery solution across regions with a recovery point objective (RPO) of zero. The database is update-intensive with frequent writes. Which configuration should they implement?

Accepted Answer

SQL Server Always On Availability Group with synchronous commit across regions.. SQL Server Always On Availability Group with synchronous commit across regions ensures zero data loss because transactions are committed on both the primary and secondary replicas before the primary acknowledges the commit. This meets the RPO of zero, even though it introduces latency due to cross-region synchronization. For an update-intensive workload, synchronous commit is the only option that guarantees no data loss at the cost of increased write latency.

Answer

SQL Server Always On Availability Group with asynchronous commit.

Answer

Azure Site Recovery to another region.

Answer

Deploy the VMs in a different availability zone within the same region.

Question 10

A company runs a legacy on-premises application that relies on a SQL Server database. They want to use Azure as a disaster recovery site with a recovery point objective of less than 15 minutes. They need to be able to fail back to the on-premises environment after a disaster. Which Azure service should they use?

Accepted Answer

Azure Site Recovery. Azure Site Recovery (ASR) orchestrates replication, failover, and failback of on-premises SQL Server workloads to Azure, supporting a Recovery Point Objective (RPO) of less than 15 minutes through continuous replication. It enables failback to the original on-premises environment after a disaster, which is a critical requirement for this scenario.

Answer

Azure Backup

Answer

Azure SQL Database

Answer

Azure Traffic Manager

Question 11

A company runs a multi-tier application on Azure VMs in the West US region. The application has web, application, and database tiers. They want to use Azure Site Recovery for disaster recovery to East US. They need to ensure that after failover, the web tier starts first, then the application tier, and finally the database tier after a consistency check. They also need to be able to perform non-disruptive DR drills. Which Azure Site Recovery capabilities should they use together?

Accepted Answer

Create a recovery plan with custom groups and scripts for startup order, and use test failover for DR drills. Azure Site Recovery (ASR) recovery plans allow you to define custom groups and scripts to control the startup order of VMs after failover. By placing the web, application, and database tiers into separate groups with pre- and post-actions (e.g., PowerShell scripts), you can ensure the web tier starts first, then the application tier, and finally the database tier after a consistency check. ASR's test failover capability performs a non-disruptive DR drill by creating isolated copies of VMs in a separate VNet without impacting the production environment.

Answer

Use Azure Backup for the VMs and restore them in order after failover

Answer

Use an availability set to control startup order and use disaster recovery drills in a separate VNet

Answer

Use Azure Traffic Manager to route traffic after failover and manually start VMs in order

Question 12

A company runs a critical application on Azure SQL Managed Instance in the West US region. They need a disaster recovery solution that provides automatic failover to a secondary region (East US) with no data loss (synchronous replication) and a recovery time objective (RTO) of less than 1 hour. They also want to offload read-only workloads to the secondary during normal operations. Which Azure feature should they implement?

Accepted Answer

Auto-failover groups with synchronous replication. Auto-failover groups with synchronous replication is the correct choice because Azure SQL Managed Instance supports failover groups that can use synchronous replication to ensure zero data loss (RPO=0) when both regions are within the same paired region. The automatic failover capability meets the RTO of less than 1 hour, and the secondary region can be used for read-only query offloading by connecting to the secondary listener endpoint.

Answer

Active geo-replication

Answer

Geo-restore of backups

Answer

Azure Site Recovery

Question 13

A company runs a mission-critical multi-tier application on Azure VMs in West US. The application consists of database VMs, application VMs, and web VMs. During a disaster, the VMs must be recovered in a specific order: database tier first, then application tier, then web tier. The recovery point objective (RPO) is 5 minutes and recovery time objective (RTO) is 15 minutes. The company wants to periodically test the recovery process without impacting production. After failover to East US, the VMs must retain their private IP addresses to avoid DNS propagation delays. Which combination of Azure Site Recovery features should they configure?

Accepted Answer

A recovery plan, test failover, and static IP address assignment. Option C is correct because a recovery plan enforces the required startup order (database → application → web), test failover allows non-disruptive validation of the recovery process, and static IP address assignment ensures VMs retain their private IP addresses after failover to East US, avoiding DNS propagation delays. This combination meets the RPO of 5 minutes and RTO of 15 minutes while satisfying the requirement for periodic testing without impacting production.

Answer

A recovery plan, planned failover, and network mapping

Answer

A recovery plan, test failover, and network mapping

Answer

A recovery plan, planned failover, and static IP address assignment

Question 14

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.

Answer

Active geo-replication

Answer

Auto-failover groups

Answer

Long-term backup retention

Question 15

A company runs a web application on Azure App Service with a backing Azure SQL Database in a single region. They need to ensure availability during an Azure region outage. The solution must automatically fail over the entire application stack with minimal data loss and redirect user traffic to the secondary region. Which combination of Azure services should they implement?

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 between regions, and when combined with auto-failover groups for Azure SQL Database, it ensures the entire application stack (web + database) fails over together with minimal data loss. The auto-failover group replicates the database synchronously within the same region and asynchronously across regions, allowing 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.

Answer

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

Answer

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

Answer

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