AZ-305 Design business continuity solutions Practice Test 11 — 15 Questions

Question 1

A company runs a critical application on Azure VMs in a single region. They need to ensure the application can failover to another region with minimal data loss and a recovery time objective (RTO) of 1 hour. The application uses managed disks and SQL Server Always On availability groups. What is the MOST cost-effective solution that meets the requirements?

Accepted Answer

Use Azure Site Recovery to replicate VMs to a secondary region with a recovery plan. Option D is correct because Azure Site Recovery replicates VMs to a secondary region with near-synchronous replication (RPO of a few seconds) and provides orchestrated failover with RTO of minutes. It is more cost-effective than full active-passive setup. Option A is wrong because SQL Server Always On requires a secondary instance in the other region, which is more expensive and adds complexity beyond the VM recovery. Option B is wrong because geo-redundant storage (GRS) only provides storage-level replication, not full VM recovery. Option C is wrong because availability zones protect within a region, not cross-region.

Answer

Use Azure geo-redundant storage (GRS) for the managed disks and restore the VMs in the secondary region

Answer

Use Azure availability zones to protect against regional failures

Answer

Deploy SQL Server Always On availability groups across two regions

Question 2

Refer to the exhibit. The JSON snippet shows the properties of a replication-protected item in Azure Site Recovery. What is the MOST LIKELY reason for the replication health being 'Critical'?

Accepted Answer

A planned failover was completed, stopping replication. Option B is correct because the 'currentProtectionState' is 'PlannedFailoverCompleted', which means a planned failover has been executed and the replication from on-premises to Azure has stopped. After a planned failover, replication is no longer active, leading to a critical health state. Option A is wrong because a pending test failover would show a different state (e.g., 'TestFailoverInitiated' or 'TestFailoverCompleted'). Option C is wrong because network connectivity issues would likely show a different state like 'InitialReplicationPending' or 'ReplicationNotStarting'. Option D is wrong because a storage account misconfiguration would cause replication errors, not a completed planned failover state.

Answer

The replication storage account is misconfigured

Answer

There is a network connectivity issue between the on-premises site and Azure

Answer

A test failover was initiated but not cleaned up

Question 3

A company uses Azure Backup to protect on-premises Windows servers and Azure VMs. They need to restore a file from a backup of an Azure VM that was deleted three months ago. The backup policy retains daily backups for 30 days and weekly backups for 12 months. What is the CORRECT way to restore the file?

Accepted Answer

Use the file-level recovery option to mount the recovery point as a drive and copy the file. Option C is correct because Azure Backup allows file-level recovery from Azure VM backups. You can mount the recovery point as a drive and copy the file. Option A is wrong because you cannot restore a file from a backup of a deleted VM by restoring the entire VM; that would be overkill and may not be possible if the VM is deleted. Option B is wrong because Azure Backup does not directly support restoring to a different VM without first restoring the disk. Option D is wrong because file-level restore is supported for Azure VMs.

Answer

Azure Backup does not support file-level restore for Azure VMs; restore the entire disk

Answer

Restore the entire VM from a weekly recovery point and then copy the file

Answer

Use the 'Restore to a new VM' option and select the file during the restore process

Question 4

Refer to the exhibit. You are deploying an ARM template to configure backup for an Azure Web App. The deployment fails with an error: 'The resource 'Microsoft.Web/sites/config' cannot be nested under a parent resource that is not deployed.' What is the MOST LIKELY cause?

Accepted Answer

The parent web app resource is not defined in the template. Option D is correct because the backup configuration resource is defined as a child resource of the web app, but the parent web app ('Microsoft.Web/sites') is not included in the template. In ARM templates, child resources must be nested under their parent or the parent must be deployed in the same template. Since the web app is not defined, the deployment fails. Option A is wrong because the backup schedule is valid. Option B is wrong because the storage account URL is obtained using reference(), which works if the storage account is deployed or exists. Option C is wrong because the apiVersion is correct for the resource type.

Answer

The storageAccountUrl property uses a reference() that cannot be resolved

Answer

The apiVersion '2022-03-01' is not supported for this resource type

Answer

The backup schedule frequency interval is invalid

Question 5

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 6

A company wants to protect its Azure Files shares from accidental deletion or ransomware. They need to be able to recover files from up to 30 days ago. What solution should they implement?

Accepted Answer

Enable soft delete for Azure Files shares and configure share snapshots. Option A is correct because Azure Files supports soft delete and file share snapshots (which are part of backup). Soft delete retains deleted files for up to 30 days by default. Option B is wrong because Azure Backup for Azure Files provides backup but not necessarily the 30-day recovery point needed. Option C is wrong because Azure File Sync syncs files but does not provide point-in-time recovery. Option D is wrong because Azure Storage replication options (LRS/GRS) do not protect against accidental deletion at the file level.

Answer

Sync the Azure Files share to an on-premises server using Azure File Sync

Answer

Use Azure Backup for Azure Files with a 30-day retention policy

Answer

Configure geo-redundant storage (GRS) for the storage account

Question 7

Refer to the exhibit. A role assignment has a condition that controls blob deletion. A user assigned this role tries to delete a blob with tag 'Project' set to 'ProjectB'. What will happen?

Accepted Answer

The deletion is denied because the blob does not have the required tag. Option D is correct because the condition grants delete permission only if the blob's tag matches 'ProjectA'. Since the blob has tag 'ProjectB', the condition evaluates to false, and the delete action is denied. Option A is wrong because the condition does not block all blob deletions, only those not matching the tag. Option B is wrong because the condition does not affect other actions. Option C is wrong because the condition is evaluated at runtime.

Answer

The deletion is allowed because the condition only applies to write operations

Answer

The deletion is allowed because the condition does not affect blob deletion

Answer

The deletion is denied because the condition version is 2.0 and not supported

Question 8

A company runs a critical application on Azure VMs. They want to ensure high availability within a region using Azure Site Recovery. What is the correct configuration?

Accepted Answer

Deploy VMs across multiple availability zones and use a load balancer. Option B is correct because Azure Site Recovery is designed for disaster recovery across regions, not within a region. For intra-region high availability, availability zones should be used. Option A is wrong because Site Recovery does not support intra-region replication to availability zones directly. Option C is wrong because Site Recovery cannot replicate across availability sets. Option D is wrong because Site Recovery can replicate across zones but is not the best practice for intra-region HA.

Answer

Configure Azure Site Recovery to replicate VMs to a paired region

Answer

Use Azure Site Recovery to replicate VMs across availability sets

Answer

Configure Azure Site Recovery to replicate VMs to different availability zones within the same region

Question 9

A company uses Azure Cosmos DB with a single write region. They need to ensure business continuity with an RPO of 5 seconds and RTO of 1 minute in case of a regional outage. What configuration should they use?

Accepted Answer

Enable multi-region writes with automatic failover. Option C is correct because Cosmos DB multi-region writes with automatic failover provides the lowest RPO and RTO. With multiple write regions, if one region fails, the other region continues to accept writes with no data loss. Option A is wrong because single-region writes with automatic failover has higher RPO (up to 15 minutes). Option B is wrong because manual failover has higher RTO. Option D is wrong because availability zones protect within a region, not cross-region.

Answer

Enable automatic failover from a single write region to a read region

Answer

Deploy Cosmos DB in an availability zone-enabled region

Answer

Use manual failover to a secondary read region

Question 10

Which TWO actions should you take to ensure business continuity for an Azure SQL Managed Instance? (Choose two.)

Accepted Answer

Enable automated backups with a retention period that meets your RPO. Options B and D are correct. Azure SQL Managed Instance supports automated backups with point-in-time restore (B) and failover groups for geo-replication (D). Option A is wrong because configuring a readable secondary is not directly supported; failover groups handle that. Option C is wrong because Azure Site Recovery is for VMs, not managed instances. Option E is wrong because long-term retention is for backup storage, not failover.

Answer

Use Azure Site Recovery to replicate the instance to another region

Answer

Configure a readable secondary replica in the same region

Answer

Enable long-term retention (LTR) for backups

Question 11

Which THREE of the following are valid strategies for designing a disaster recovery plan for Azure Virtual Desktop? (Choose three.)

Accepted Answer

Use Azure File Sync to replicate FSLogix profile shares to a secondary region. Options A, B, and D are correct. Azure Site Recovery can replicate session host VMs (A). Azure Files can replicate FSLogix profiles using Azure File Sync to a secondary region (B). A disaster recovery plan can include a secondary host pool with pre-provisioned session hosts (D). Option C is wrong because Azure Backup does not provide immediate failover; it is for backup and restore. Option E is wrong because Azure Front Door is for web traffic, not for RDP connections.

Answer

Use Azure Front Door to route RDP traffic to the secondary region

Answer

Rely on Azure Backup to restore session hosts in the secondary region

Question 12

Which TWO of the following are requirements for using Azure Site Recovery to protect Azure VMs? (Choose two.)

Accepted Answer

VMs must be using managed disks. Options A and D are correct. VMs must be in a region that supports Azure Site Recovery (A). VMs must be using managed disks (D). Option B is wrong because unmanaged disks are not supported. Option C is wrong because VMs can be any size, but there are some limitations. Option E is wrong because Site Recovery does not require a VPN connection for Azure-to-Azure replication; it uses the Azure backbone.

Answer

VMs must use unmanaged disks

Answer

VMs must be connected to a virtual network that has a VPN gateway to the target region

Answer

VMs must be at least Standard_D2s_v3 size

Question 13

Which THREE of the following are best practices for designing a business continuity solution using Azure Backup? (Choose three.)

Accepted Answer

Enable soft delete to protect backup data from accidental deletion. Options A, C, and D are correct. Using a Recovery Services vault per workload or per region helps with isolation (A). Enabling soft delete protects against accidental deletion (C). Using geo-redundant storage (GRS) for backup data provides cross-region protection (D). Option B is wrong because backup policies should be based on RPO, not a fixed number of policies. Option E is wrong because RBAC should be used to restrict access, not grant everyone access.

Answer

Configure a single backup policy for all resources to simplify management

Answer

Grant all users 'Backup Contributor' role to ensure backups are taken

Question 14

Which TWO of the following are valid options to achieve high availability for Azure SQL Database? (Choose two.)

Accepted Answer

Deploy a zone-redundant Azure SQL Database. Options B and D are correct. Zone-redundant deployment (B) provides high availability within a region by replicating across availability zones. Active geo-replication (D) provides cross-region high availability and disaster recovery. Option A is wrong because a single database with locally redundant storage offers no high availability. Option C is wrong because Azure SQL Database does not support manual failover to a replica without geo-replication. Option E is wrong because always on availability groups are for SQL Server on VMs, not Azure SQL Database.

Answer

Deploy a single database with locally redundant storage (LRS)

Answer

Configure manual failover to a secondary replica in the same region

Answer

Configure SQL Server Always On availability groups

Question 15

Your organization has a critical application deployed on Azure VMs in the West US region. The application uses a Standard_D8s_v3 VM with two data disks (512 GB each) and a separate log disk (256 GB). The application writes data continuously to the data disks and logs. The business continuity requirements are: RPO of 15 minutes, RTO of 2 hours, and the ability to recover to a specific point in time within the last 7 days. You need to design a disaster recovery solution that replicates the VMs and disks to the East US region. The solution must also support failback to West US after a disaster. What should you do?

Accepted Answer

Use Azure Site Recovery to replicate the VMs to East US with a recovery plan that includes the VM and disks, and configure failback using reprotection. Option C is correct because Azure Site Recovery can replicate Azure VMs to a secondary region with continuous replication meeting RPO of 15 minutes. It supports failback by reprotecting and failing back. Option A is wrong because Azure Backup has RPO of 1 hour for Azure VMs and does not support failback. Option B is wrong because geo-redundant storage (GRS) for managed disks does not provide VM replication or failback. Option D is wrong because Azure Migrate is for migration, not disaster recovery.

Answer

Use Azure Migrate to migrate the VMs to East US and then set up replication back to West US

Answer

Configure Azure Backup for the VMs with a backup policy that has a 15-minute frequency and replicate backups to the East US region using geo-redundant storage

Answer

Use Azure Storage geo-redundant storage (GRS) for the managed disks and manually attach the disks to a new VM in East US during a disaster