AZ-305 Design business continuity solutions Practice Test 7 — 15 Questions

Question 1

Which THREE components are required to implement a disaster recovery solution for Azure Virtual Desktop (AVD) using active-passive model?

Accepted Answer

Configure Azure Files geo-replication for the profile share.. Azure Files geo-redundant storage (GRS) replicates the profile share to a paired secondary region, ensuring profile data is available during a regional outage. This is essential for an active-passive disaster recovery model where the secondary region's AVD host pool must access the same profile data to provide a consistent user experience.

Answer

Deploy AVD host pool in the primary region only.

Answer

Configure Azure Backup for the AVD session hosts.

Question 2

Which TWO features should you use to meet an RPO of 0 seconds for an Azure SQL Database that is part of a critical application?

Accepted Answer

Failover group with readable secondary.. Azure SQL Database active geo-replication and auto-failover groups use ASYNCHRONOUS replication across regions, with Microsoft's documented RPO typically under 5 seconds -- not a guaranteed literal 0. A true RPO of 0 within Azure SQL Database is only achieved by the Business Critical/Premium tier's zone-redundant (synchronous) configuration, which protects against zone failure within a single region, not cross-region disaster recovery. Candidates should not assume failover groups or active geo-replication provide zero data loss; they provide near-zero (low-second) RPO.

Answer

Azure Site Recovery for SQL VMs.

Answer

Azure SQL Database backups with short-term retention.

Answer

Auto-failover group with asynchronous replication.

Question 3

Refer to the exhibit. You are testing a disaster recovery plan for three Azure VMs. The recovery plan in the exhibit is failing during a test failover. VM3 fails to start after failover. What is the most likely cause?

Accepted Answer

VM3 is in a Shutdown group, which means it is not started during failover.. In Azure Site Recovery, a recovery plan can include groups with different startup actions: 'Start' groups initiate VMs during failover, while 'Shutdown' groups are used to sequence the orderly shutdown of VMs during planned failover or to group VMs that should not be started. If VM3 is placed in a 'Shutdown' group, it will not be started during a test failover, causing it to remain off and fail to start. This is the most likely cause given the exhibit shows VM3 in a group that does not trigger startup.

Answer

VM3 is not replicated properly.

Answer

The boot order is incorrect; VM3 should be before VM1.

Answer

The primary and recovery locations are swapped.

Question 4

Refer to the exhibit. You deploy an Azure SQL Database with a secondary replica in another region using the ARM template shown. You need to ensure that the database can fail over automatically with zero data loss. What is missing?

Accepted Answer

Create a failover group that includes both databases.. A failover group is required to enable automatic failover between the primary and secondary replicas in Azure SQL Database. Without a failover group, the secondary replica exists as a readable copy but cannot automatically take over during a disaster. The failover group also supports the ability to achieve zero data loss by using the 'GracePeriodWithDataLoss' setting or by ensuring synchronous replication is configured, which is part of the failover group's properties.

Answer

Configure long-term backup retention.

Answer

Disable readScaleOut on the primary database.

Answer

Set zoneRedundant to true on the primary database.

Question 5

Refer to the exhibit. You are configuring Azure Site Recovery replication for a VM. The exhibit shows the replication policy settings. What is the RPO and RTO that can be achieved with this policy?

Accepted Answer

RPO of 5 minutes and RTO of 15 minutes.. The replication policy shown sets a recovery point retention window of 5 minutes, meaning Azure Site Recovery aims to keep all recovery points within the last 5 minutes, which directly defines the RPO as 5 minutes. The RTO is determined by the recovery time objective, which for Azure Site Recovery with crash-consistent snapshots and default failover settings is typically around 15 minutes, as the exhibit does not specify a lower RTO target. Option B correctly pairs these values.

Answer

RPO of 15 minutes and RTO of 5 minutes.

Answer

RPO of 5 minutes and RTO of 30 minutes.

Answer

RPO of 10 minutes and RTO of 15 minutes.

Question 6

A multinational company runs a mission-critical application on Azure VMs in the West US region. The application uses Azure SQL Database (Business Critical tier) and Azure Cache for Redis. The company needs to ensure the application can fail over to a secondary region within 5 minutes during a regional outage. The design must minimize data loss. Which solution should you recommend?

Accepted Answer

Deploy VMs in an Azure Site Recovery recovery plan to East US, use Azure SQL Database active geo-replication with auto-failover group, and use Azure Cache for Redis with geo-replication enabled.. It ensures all components can fail over to East US within 5 minutes with minimal data loss. Azure Site Recovery (ASR) provides orchestrated VM replication with RTO typically under 5 minutes. Azure SQL Database active geo-replication with auto-failover groups offers RPO of 5 seconds and RTO of ~1 minute, meeting the 5-minute target and minimizing data loss. Azure Cache for Redis geo-replication (Premium tier) replicates cache data asynchronously, providing a warm standby cache in East US to reduce data loss. Option A fails because availability zones do not protect against a regional outage and geo-restore has longer RTO. Option B uses availability sets (no regional protection) and manual failover for SQL (exceeds 5 minutes). Option C uses Standard tier Redis which lacks geo-replication, leading to data loss.

Answer

Deploy VMs across Azure availability zones in West US, use Azure SQL Database geo-restore to East US, and deploy a second Azure Cache for Redis instance in East US.

Answer

Deploy VMs in an availability set in West US, use Azure Site Recovery to replicate to East US, and configure Azure SQL Database failover group with manual failover.

Answer

Deploy VMs in an Azure Site Recovery recovery plan to East US, use Azure SQL Database active geo-replication with auto-failover group, and deploy Azure Cache for Redis Standard tier in East US.

Question 7

Your company runs a web application on Azure App Service (Standard tier) in a single region. You need to design a disaster recovery solution that can fail over to another region within 30 minutes. The application uses Azure SQL Database (General Purpose tier) and Azure Blob Storage. What should you implement?

Accepted Answer

Configure App Service backup to a secondary region, use Azure SQL Database active geo-replication with auto-failover group, and use geo-redundant storage (GRS) for Blob Storage.. It meets the 30-minute RTO by using Azure SQL Database active geo-replication with auto-failover groups, which provides automated, rapid failover to a secondary region. App Service backup to a secondary region ensures the web app can be restored quickly, and geo-redundant storage (GRS) for Blob Storage provides durable replication across regions, enabling failover within the required time frame.

Answer

Use Azure Traffic Manager with priority routing to a second App Service instance, use Azure SQL Database backup to a secondary region, and use Azure Storage zone-redundant storage (ZRS).

Answer

Configure App Service auto-scaling, use Azure SQL Database geo-replication with readable secondary, and use Azure Storage read-access geo-redundant storage (RA-GRS).

Answer

Configure App Service deployment slots, use Azure SQL Database geo-restore, and use Azure Storage locally-redundant storage (LRS).

Question 8

A company runs a critical financial application on Azure Kubernetes Service (AKS) in a single region. The application uses Azure Cosmos DB for NoSQL with multiple write regions. You need to design a business continuity solution that meets an RPO of 0 seconds and an RTO of less than 5 seconds for a regional outage. The solution must be cost-optimized. What should you include in the design?

Accepted Answer

Deploy AKS clusters in two regions, use Azure Front Door to route traffic, and configure Azure Cosmos DB with multiple write regions and automatic failover.. It uses Azure Front Door for fast global traffic routing and health probing, which can detect a regional outage and reroute traffic in under 5 seconds, meeting the RTO requirement. By configuring Azure Cosmos DB with a single write region and manual failover, you can maintain strong consistency, ensuring zero data loss (RPO=0) during a regional outage because you control when failover occurs and can verify data integrity. This design is cost-optimized as it avoids the complexity and potential inconsistency of multi-region writes.

Answer

Deploy AKS clusters in two regions, use Azure Traffic Manager with priority routing, and configure Azure Cosmos DB with a single write region and a readable secondary.

Answer

Deploy AKS clusters across availability zones in one region, use Azure Load Balancer, and configure Azure SQL Database with active geo-replication.

Answer

Deploy AKS clusters in two regions, use Azure Front Door, and configure Azure Cosmos DB with a single write region and manual failover.

Question 9

Your company has an on-premises database running SQL Server 2019. You plan to migrate to Azure SQL Managed Instance. The business requires a recovery point objective (RPO) of 15 minutes and a recovery time objective (RTO) of 4 hours for a regional disaster. You need to design the disaster recovery solution. What should you use?

Accepted Answer

Configure a failover group between two Azure SQL Managed Instances in different regions with manual failover.. Azure SQL Managed Instance failover groups support manual failover, which allows you to control the timing of the failover to meet a 4-hour RTO. Automatic failover is not available for SQL Managed Instance failover groups; only manual failover is supported, and this design meets the RPO of 15 minutes using synchronous replication within the failover group.

Answer

Configure a failover group between two Azure SQL Managed Instances in different regions with automatic failover.

Answer

Use SQL Server log shipping from on-premises to Azure SQL Managed Instance in a secondary region.

Answer

Configure geo-restore of Azure SQL Managed Instance backups to a secondary region.

Question 10

A retail company runs its e-commerce platform on Azure VMs. The application uses Azure SQL Database. You are designing a business continuity plan. The company wants to minimize recovery time for a regional outage. Which Azure service should you use to replicate the VMs to a secondary region?

Accepted Answer

Azure Site Recovery. Azure Site Recovery (ASR) orchestrates replication, failover, and failback of Azure VMs from a primary to a secondary region, enabling rapid recovery during a regional outage. It provides continuous replication with a recovery point objective (RPO) of seconds and a recovery time objective (RTO) of minutes, directly meeting the requirement to minimize recovery time for the e-commerce platform's VMs.

Answer

Azure Traffic Manager

Answer

Azure Backup

Answer

Azure Load Balancer

Question 11

Your organization has a hybrid identity infrastructure using Microsoft Entra ID (formerly Azure AD) and Active Directory Domain Services (AD DS) on-premises. You plan to deploy a critical application on Azure VMs that must remain available even if the on-premises network connection fails. The application authenticates users via on-premises AD DS. You need to design an identity disaster recovery solution that works during a network outage. What should you implement?

Accepted Answer

Deploy Microsoft Entra Domain Services and join the Azure VMs to the managed domain.. Microsoft Entra Domain Services provides a managed domain that is synchronized from your on-premises AD DS via Azure AD Connect. By joining the Azure VMs to this managed domain, the application can authenticate users against the managed domain even when the on-premises network connection fails, ensuring local authentication within Azure without dependency on the on-premises AD DS.

Answer

Create a site-to-site VPN connection with a secondary on-premises data center.

Answer

Configure Azure AD Connect with password hash synchronization and enable seamless single sign-on.

Answer

Use Azure AD Application Proxy to publish the application and authenticate via Azure AD.

Question 12

A company runs a file server on Azure VMs using Windows Server. The server stores business-critical documents. You need to design a backup strategy that meets a recovery point objective (RPO) of 1 hour and recovery time objective (RTO) of 4 hours. The solution must be cost-effective. Which backup solution should you use?

Accepted Answer

Azure Backup for Azure VMs. Azure Backup for Azure VMs provides application-consistent backups for Windows Server VMs, supporting RPOs as low as 1 hour with frequent backup policies and RTOs within 4 hours by restoring to a new VM or using instant restore. It is cost-effective because it uses incremental backups and only charges for storage consumed, without the replication overhead of Site Recovery.

Answer

Azure Site Recovery

Answer

Azure Backup for Azure Blobs

Answer

Azure File Sync

Question 13

You are designing a disaster recovery plan for a web application hosted on Azure App Service. The application uses Azure SQL Database. The company wants to minimize downtime during a regional outage. Which approach should you recommend?

Accepted Answer

Deploy App Service in two regions with Azure Front Door for global load balancing and Azure SQL Database active geo-replication.. It combines multi-region App Service deployment with Azure Front Door for global load balancing and Azure SQL Database active geo-replication. This ensures that during a regional outage, traffic is automatically routed to the healthy secondary region, and the database is continuously replicated with a readable secondary, enabling near-zero RPO and minimal RTO without manual intervention.

Answer

Deploy App Service in a single region with Azure Backup for the app and database.

Answer

Deploy App Service across availability zones in one region and use Azure SQL Database zone-redundant configuration.

Answer

Deploy App Service in two regions with Azure Traffic Manager and use manual database restore.

Question 14

A company runs a containerized application on Azure Container Instances (ACI) in a single region. The application uses Azure Cosmos DB (SQL API) with a single write region. You need to design a disaster recovery solution that meets an RPO of 0 seconds and RTO of 10 minutes for a regional outage. The solution must be cost-optimized. What should you include in the design?

Accepted Answer

Migrate the application to Azure Kubernetes Service (AKS) deployed in two regions, use Azure Front Door, and configure Cosmos DB with multi-region writes.. Azure Kubernetes Service (AKS) with multi-region deployment, combined with Azure Front Door for global load balancing and Cosmos DB multi-region writes, achieves an RPO of 0 seconds (no data loss) and an RTO of 10 minutes. AKS enables rapid failover of containerized workloads across regions, while Cosmos DB multi-region writes ensure continuous write availability without failover delay, meeting the strict RPO/RTO requirements. This design is cost-optimized compared to always-on active-passive approaches because it uses active-active resources that can scale down during normal operations.

Answer

Use Azure Container Instances with container groups across availability zones, and configure Cosmos DB geo-replication with manual failover.

Answer

Deploy ACI containers in two regions, use Azure Traffic Manager, and configure Cosmos DB with automatic failover.

Answer

Deploy ACI containers in two regions, use Azure Front Door, and configure Cosmos DB with multi-region writes.

Question 15

Which TWO of the following Azure services can be used to enable automatic failover of a web application across Azure regions?

Accepted Answer

Azure Front Door. Azure Front Door is a global, scalable entry point that provides built-in automatic failover across regions using anycast-based routing and health probes. When a primary region becomes unhealthy, Front Door instantly routes traffic to the next available healthy backend, enabling seamless multi-region failover for web applications.

Answer

Azure DNS

Answer

Azure Load Balancer

Answer

Azure Application Gateway