AZ-305 Design business continuity solutions Practice Test 6 — 15 Questions

Question 1

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

Question 2

Match each Azure database service to its primary use case.

Question 3

Match each Azure security service to its purpose.

Question 4

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 5

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 6

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 7

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 8

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 9

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 10

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 11

You are designing a backup strategy for Azure Files shares that contain critical data. The backup must support snapshot-based backups and allow restoration to a specific point in time. The solution must also protect against accidental deletion. What should you use?

Accepted Answer

Use Azure Backup for Azure Files with soft delete enabled.. Azure Backup for Azure Files provides snapshot-based backups with point-in-time restore and soft delete protection. Option A is incorrect because Storage Accounts replication does not provide point-in-time restore. Option C is incorrect because file sync does not provide backup. Option D is incorrect because it lacks soft delete.

Answer

Use Azure File Sync with cloud tiering.

Answer

Use Azure Storage account geo-redundant storage (GRS) with versioning.

Answer

Use Azure Backup for Azure Files without soft delete.

Question 12

A company has a disaster recovery plan that requires testing failover of Azure VMs regularly without impacting the production environment. Which feature of Azure Site Recovery should they use?

Accepted Answer

Test failover. Test failover (also known as drill) allows you to validate your disaster recovery plan without affecting production. Option A is incorrect because planned failover is for actual migration. Option C is incorrect because unplanned failover is for actual disasters. Option D is incorrect because failback is for returning to primary after failover.

Answer

Planned failover

Answer

Unplanned failover

Answer

Failback

Question 13

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 14

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

Question 15

Which TWO Azure services can be used to automatically redirect traffic to an alternate region in the event of a regional outage? (Choose two.)

Accepted Answer

Azure Traffic Manager. Azure Traffic Manager and Azure Front Door both provide global load balancing with automatic failover. Option A is incorrect because Application Gateway is regional. Option D is incorrect because Azure Load Balancer is regional. Option E is incorrect because Azure DNS does not provide traffic redirection based on health.

Answer

Azure Application Gateway

Answer

Azure Load Balancer

Answer

Azure DNS