AZ-305 Practice Test 20 — 15 Questions

Question 1

Your company runs a mission-critical application on Azure VMs. You need to design a cross-region disaster recovery solution that meets a recovery time objective (RTO) of 15 minutes and a recovery point objective (RPO) of 5 minutes. The solution must minimize costs. What should you recommend?

Accepted Answer

Use Azure Site Recovery with replication frequency set to 30 seconds.. Azure Site Recovery with replication frequency set to 30 seconds meets the RPO of 5 minutes and can achieve an RTO of 15 minutes with proper planning. Option A is incorrect because Azure Backup has a minimum RPO of 15 minutes for VMs. Option B is incorrect because Read-access geo-redundant storage does not provide automated failover for compute. Option D is incorrect because active geo-replication is for databases, not VMs.

Answer

Use Azure SQL Database active geo-replication with a failover group.

Answer

Use Azure Storage with read-access geo-redundant storage (RA-GRS) and Azure Traffic Manager.

Answer

Use Azure Backup with geo-redundant storage.

Question 2

You manage a globally distributed application using Azure Cosmos DB. You need to design a business continuity strategy that ensures zero data loss and automatic failover in case of a regional outage. The application must continue to serve reads and writes during a region failure. What should you recommend?

Accepted Answer

Configure multi-region writes with eventual consistency and enable automatic failover.. Azure Cosmos DB multi-region writes with automatic failover ensures zero data loss and continuous availability for both reads and writes. Option A is incorrect because single-region writes with eventual consistency may result in data loss. Option B is incorrect because it does not guarantee zero data loss. Option D is incorrect because manual failover does not meet automatic failover requirement.

Answer

Use Azure Cosmos DB accounts with a single write region and enable service-managed failover.

Answer

Use Azure Cosmos DB accounts with multi-region writes but disable automatic failover and rely on manual failover.

Answer

Configure single-region writes with strong consistency and enable automatic failover.

Question 3

A company has an Azure SQL Database instance that is used by a critical application. They need to ensure business continuity with an RPO of 0 (zero data loss) and an RTO of less than 1 minute in case of a regional outage. The solution must be cost-effective. What should you recommend?

Accepted Answer

Use Azure SQL Database failover groups with active geo-replication.. Azure SQL Database failover groups with active geo-replication and automatic failover provide an RPO of 0 and an RTO of less than 1 minute. Option A is incorrect because Azure SQL Database backup and restore has an RPO of 5 minutes. Option C is incorrect because Azure SQL Database zone-redundant configuration protects only within a region. Option D is incorrect because manual failover does not meet the RTO requirement.

Answer

Use Azure SQL Database automatic failover groups with manual failover.

Answer

Use Azure SQL Database zone-redundant configuration.

Answer

Use Azure SQL Database geo-restore from geo-redundant backups.

Question 4

Your company runs a stateless web application on Azure Kubernetes Service (AKS). You need to design a disaster recovery solution that ensures the application is available in another Azure region within 30 minutes of a regional failure. The solution must balance cost and complexity. What should you recommend?

Accepted Answer

Use Azure Traffic Manager to distribute traffic across two AKS clusters in different regions.. Deploying AKS clusters in two regions with Traffic Manager for global load balancing provides a cost-effective and relatively simple solution for stateless applications. Option A is incorrect because Azure Front Door is not the best fit for container workloads. Option C is incorrect because it lacks automated failover. Option D is incorrect because active geo-replication is for databases.

Answer

Use Azure SQL Database active geo-replication for the application's database.

Answer

Use Azure Front Door to route traffic to a single AKS cluster with pods running in multiple regions.

Answer

Deploy a single AKS cluster with nodes in multiple availability zones.

Question 5

You are designing a backup strategy for Azure VMs that host a file server. The backup must support daily backups with a retention of 30 days, and the ability to restore individual files quickly. The solution must minimize backup storage costs. What backup policy should you configure?

Accepted Answer

Use Azure Backup with daily backup, retention of 30 days, and use locally redundant storage (LRS) for backup data.. Azure Backup with instant restore snapshots allows quick file-level recovery. Using GRS (geo-redundant storage) adds cost unnecessarily for this requirement. Option A is incorrect because LRS is sufficient. Option B is incorrect because it limits file recovery. Option D is incorrect because it adds cost without benefit.

Answer

Use Azure Backup with daily backup, retention of 30 days, and use geo-redundant storage (GRS) for backup data.

Answer

Use Azure Backup with weekly backup, retention of 30 days, and use geo-redundant storage (GRS) for backup data.

Question 6

A company uses Azure Backup to protect on-premises Windows servers. The backup data is stored in a Recovery Services vault. They want to ensure that backup data is protected even if the entire Azure region fails. What should they configure?

Accepted Answer

Enable Cross-region restore (CRR) for the Recovery Services vault.. Cross-region restore (CRR) enables restoring backup data in a paired region if the primary region fails. Option A is incorrect because GRS is the storage redundancy, but CRR is the feature that enables restore. Option C is incorrect because zone-redundant storage protects only within a region. Option D is incorrect because replication across vaults is not a built-in feature.

Answer

Configure backup replication across two Recovery Services vaults in different regions.

Answer

Enable geo-redundant storage (GRS) for the Recovery Services vault.

Answer

Use zone-redundant storage (ZRS) for the Recovery Services vault.

Question 7

Your company runs a critical application on Azure App Service. You need to design a disaster recovery solution that ensures the application is available in another region within 5 minutes of a regional failure. The application uses Azure SQL Database as its backend. The solution must minimize data loss and cost. What should you recommend?

Accepted Answer

Deploy App Service in two regions with Azure Traffic Manager. Use Azure SQL Database failover groups with active geo-replication.. Deploying App Service in two regions with Traffic Manager for routing and Azure SQL Database failover groups with active geo-replication provides the best balance of cost and performance. Option A is incorrect because it does not include database replication. Option C is incorrect because it uses Azure Front Door which is more expensive. Option D is incorrect because manual failover does not meet the 5-minute RTO.

Answer

Deploy App Service in one region with multiple instances. Use Azure SQL Database failover groups with manual failover.

Answer

Deploy App Service in two regions with Azure Front Door. Use Azure SQL Database with zone-redundant configuration.

Answer

Deploy App Service in two regions with Azure Traffic Manager. Use Azure SQL Database geo-restore for the database.

Question 8

Which TWO actions should you take to ensure business continuity for an Azure App Service web app that uses Azure SQL Database? (Choose two.)

Accepted Answer

Configure Azure SQL Database failover groups with automatic failover.. Deploying the App Service in multiple regions with Traffic Manager provides geographic redundancy. Using Azure SQL Database failover groups provides database redundancy with automatic failover. Option A is incorrect because App Service backup does not provide regional failover. Option D is incorrect because application code changes are not necessary for business continuity. Option E is incorrect because Azure Front Door is more expensive and not required.

Answer

Enable auto-healing in the App Service and modify the application code to handle retries.

Answer

Use Azure Front Door with a single App Service instance.

Answer

Configure Azure Backup for the App Service and enable geo-restore.

Question 9

A company uses Azure SQL Database for a critical OLTP workload. They need a disaster recovery solution that automatically fails over to a secondary region with an RPO of 5 seconds and an RTO of 1 hour. What should they implement?

Accepted Answer

Azure SQL Database active geo-replication. Option C is correct because Azure SQL Database active geo-replication provides an RPO of up to 5 seconds and an RTO of 1 hour. Option A is wrong because auto-failover groups with read-write failover policy can also meet the requirements, but the question asks for active geo-replication specifically. Option B is wrong because Azure SQL Database automatic failover groups typically have an RTO of 1 hour but RPO is higher for geo-failover. Option D is wrong because Azure SQL Managed Instance has different RPO/RTO characteristics.

Answer

Azure SQL Database zone-redundant configuration

Answer

Azure SQL Database auto-failover groups

Answer

Azure SQL Managed Instance failover groups

Question 10

A company runs a critical application on Azure VMs. They need to ensure that if an entire Azure region fails, the application can be recovered in another region with minimal data loss. They have a recovery point objective (RPO) of 1 hour and a recovery time objective (RTO) of 4 hours. What should they implement?

Accepted Answer

Azure Site Recovery. Option A is correct because Azure Site Recovery provides VM replication to a secondary region with an RPO of as low as 5 minutes and RTO of a few hours, meeting the 1-hour RPO and 4-hour RTO. Option B is wrong because Azure Backup has an RPO of at least 12 hours. Option C is wrong because Azure Traffic Manager does not replicate data. Option D is wrong because Azure Front Door is for global load balancing, not VM replication.

Answer

Azure Traffic Manager

Answer

Azure Front Door

Answer

Azure Backup

Question 11

A financial services company runs a critical application on Azure VMs with SQL Server Always On availability groups. The primary region is East US, and the secondary region is West US. The business requires automatic failover with zero data loss in case of a regional disaster. Which configuration should you recommend for the availability group?

Accepted Answer

Use synchronous commit mode with automatic failover. Option D is correct because synchronous commit mode with automatic failover ensures zero data loss and automatic failover. Option A is wrong because asynchronous commit can have data loss. Option B is wrong because manual failover does not meet automatic requirement. Option C is wrong because asynchronous commit with automatic failover can cause data loss.

Answer

Use synchronous commit mode with manual failover

Answer

Use asynchronous commit mode with automatic failover

Answer

Use asynchronous commit mode with manual failover

Question 12

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.. Option C (Shutdown group) is correct because VM3 is in a Shutdown group, which means it is not started during failover. Option A (replication) is not indicated. Option B (boot order) not shown. Option D (recovery location) is valid.

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 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.. Option A is correct because deploying App Service in two regions with Azure Front Door and SQL Database geo-replication provides active-passive failover with minimal downtime. Option B (single region with backup) does not protect against region failure. Option C (manual failover) increases downtime. Option D (availability zones) protects only within a region.

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 production Azure SQL Database. They need a business continuity solution that allows point-in-time restore to any time within the last 7 days and provides geo-failover capability with RTO of 1 hour. What is the MOST COST-EFFECTIVE option?

Accepted Answer

Configure active geo-replication with a readable secondary in another region. Option B is correct because Active Geo-Replication provides geo-failover with RTO of 1 hour and supports point-in-time restore. It is more cost-effective than Auto-failover groups for a single database. Option A is wrong because auto-failover groups are designed for multiple databases and have higher cost due to additional listener. Option C is wrong because long-term retention is for backups, not failover. Option D is wrong because zone-redundant databases protect within a region, not cross-region.

Answer

Use Azure SQL Database long-term retention (LTR) for backups

Answer

Deploy a zone-redundant Azure SQL Database

Answer

Deploy auto-failover groups with a secondary in another region

Question 15

Which THREE components are required to implement a disaster recovery solution for Azure SQL Database using failover groups? (Choose three.)

Accepted Answer

A failover group that includes both servers. Failover groups require a primary server, a secondary server in a different region, and the failover group itself. Option A is incorrect because zone redundancy is optional. Option D is incorrect because active geo-replication is a separate feature; failover groups can be used without it. Option E is incorrect because it is a specific configuration.

Answer

Zone-redundant configuration on the primary database

Answer

Active geo-replication configured on the primary database