AZ-305 Design business continuity solutions Practice Test 13 — 15 Questions

Question 1

A company runs a critical application on Azure VMs. They need a backup strategy that meets the following requirements:
- Daily backups retained for 35 days
- Weekly backups retained for 12 weeks
- Monthly backups retained for 36 months
- Yearly backups retained for 10 years
- Backups must be stored in a geo-redundant storage account
Which THREE items must be configured? (Choose three.)

Accepted Answer

A backup policy with GFS retention. The Grandfather-Father-Son (GFS) retention policy in Azure Backup allows you to define multiple retention points for daily, weekly, monthly, and yearly backups, exactly matching the requirements. The GFS policy enables you to specify retention durations for each frequency, such as 35 days for daily, 12 weeks for weekly, 36 months for monthly, and 10 years for yearly, which a simple daily policy cannot achieve.

Answer

A simple daily backup policy

Answer

A Recovery Services vault in the paired region

Question 2

A company uses Azure Site Recovery to replicate VMs from the primary region to the secondary region. During a disaster, they want to ensure that the failover process is automated and includes runbooks to perform post-failover actions. Which TWO components are required? (Choose two.)

Accepted Answer

Azure Automation runbooks. Azure Automation runbooks are required because they contain the PowerShell or Python scripts that execute post-failover actions, such as updating DNS records, reconfiguring network settings, or starting dependent services. Azure Site Recovery Recovery Plans are required because they orchestrate the failover sequence, including grouping VMs into ordered groups and invoking runbooks at specific steps. Together, they enable automated, scripted post-failover tasks within a structured failover workflow.

Answer

Azure Monitor alerts

Answer

Azure Logic Apps

Answer

Azure Backup

Question 3

A company runs a critical application on Azure VMs. They need a backup strategy that meets the following requirements: - Daily backups retained for 35 days - Weekly backups retained for 12 weeks - Monthly backups retained for 36 months - Yearly backups retained for 10 years - Backups must be stored in a geo-redundant storage account Which THREE items must be configured? (Choose three.)

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Azure Site Recovery. Azure Site Recovery (ASR) orchestrates replication, failover, and failback of Azure VMs to a secondary region, meeting the RPO of 1 hour (typically 30 seconds to 15 minutes for Azure-to-Azure replication) and RTO of 4 hours (failover can be completed in minutes to a few hours, depending on VM count and data size). It is the correct service for full disaster recovery with minimal data loss across regions.

Answer

Azure Traffic Manager

Answer

Azure Front Door

Answer

Azure Backup

Question 4

Which TWO Azure services can be used to provide cross-region disaster recovery for Azure App Service web applications with a custom domain? (Select TWO.)

Accepted Answer

Azure Front Door. Azure Front Door (B) provides global load balancing and traffic routing based on latency or priority, enabling cross-region failover for App Service web applications. It supports custom domains with TLS termination and health probes to automatically redirect traffic to a secondary region during a disaster. Azure Traffic Manager (E) also offers DNS-based traffic routing with priority or performance profiles, allowing failover to a secondary App Service instance in another region, and works with custom domains via CNAME records.

Answer

Azure DNS

Answer

Azure CDN

Answer

Azure Application Gateway

Question 5

Refer to the exhibit. You deploy this ARM template to create a storage account in the West US region. The business continuity requirement states that if the primary region becomes unavailable, the storage account must be readable within 1 hour. What is the most important limitation of this configuration?

Accepted Answer

The storage account does not support read access in the secondary region, so manual failover is required, which may exceed the 1-hour RTO. The ARM template configures GRS (Geo-Redundant Storage), which replicates data to a secondary region but does not provide read access to that data unless a manual failover is initiated. Without read-access geo-redundant storage (RA-GRS), the storage account cannot be read in the secondary region within 1 hour of a primary region outage, as manual failover requires user intervention and may take longer than the RTO. The business continuity requirement demands readability within 1 hour, which is not guaranteed with standard GRS.

Answer

The storage account uses GRS, which replicates data only to a secondary region within the same geography, not to a different region

Answer

The storage account only supports HTTPS traffic, which blocks replication

Answer

The storage account is configured with the Hot access tier, which prevents failover

Question 6

Refer to the exhibit. This ARM template configures backup for an Azure App Service web app. The backup is scheduled daily. What is the primary limitation of this backup strategy in meeting a disaster recovery RPO of 4 hours?

Accepted Answer

The backup frequency is 1 day, resulting in an RPO of up to 24 hours. The backup frequency is set to 1 day, meaning the most recent backup could be up to 24 hours old. To meet a Recovery Point Objective (RPO) of 4 hours, you need backups taken at least every 4 hours. Azure App Service backup does not support sub-daily scheduling natively; you would need to use Azure Backup or custom logic to achieve a 4-hour RPO.

Answer

The backup storage account is in the same region as the web app

Answer

The retention period of 30 days is too short

Answer

The backup does not include the web app configuration

Question 7

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. The requirement for automatic failover with zero data loss in a disaster recovery scenario necessitates synchronous commit mode, which ensures that transactions are committed on both the primary and secondary replicas before the primary acknowledges the commit. Automatic failover is only supported with synchronous commit mode when both replicas are in a healthy state, allowing the secondary to automatically become the primary without manual intervention. This configuration meets the business need for zero data loss (RPO=0) and minimal downtime (RTO) during a regional disaster.

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 8

Which TWO of the following are valid strategies for achieving high availability for Azure SQL Database?

Accepted Answer

Deploy Azure SQL Database in a zone-redundant configuration within a single region.. Azure SQL Database's zone-redundant configuration automatically provisions a primary replica and multiple secondary replicas across different availability zones within the same region. This ensures that if one zone fails, the database automatically fails over to a secondary replica in another zone without data loss, providing an RPO of 0 and an RTO of typically under 60 seconds. Option C is correct because active geo-replication with a readable secondary in the same region creates a synchronous replica that can be used for both high availability and read-scale workloads, though it is more commonly used for cross-region scenarios; within the same region, it offers an additional layer of redundancy beyond the default local redundancy.

Answer

Enable read scale-out to distribute read queries to a secondary replica.

Answer

Use Azure Backup to copy database backups to another region.

Answer

Configure auto-failover groups with a secondary in another region.

Question 9

Which THREE of the following are required components for a disaster recovery solution using Azure Site Recovery for on-premises Hyper-V VMs?

Accepted Answer

A Recovery Services vault in the target Azure region.. A Recovery Services vault in the target Azure region is required because it serves as the central management and storage container for replication data, configuration settings, and recovery points. Azure Site Recovery (ASR) uses this vault to orchestrate replication, failover, and failback for on-premises Hyper-V VMs to Azure. Without a vault in the target region, there is no destination to store replicated data or manage the recovery process.

Answer

Azure Backup Server installed on-premises.

Answer

An ExpressRoute connection from on-premises to Azure.

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. Automated backups are a fundamental component of business continuity for Azure SQL Managed Instance. They provide point-in-time restore capabilities within a configurable retention period (7-35 days), directly supporting your Recovery Point Objective (RPO) by allowing you to restore to any point within that window. This ensures that data loss is minimized to the backup frequency, which is typically every 5-10 minutes for transaction log backups.

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 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. Azure Site Recovery for Azure VMs requires that the VMs use managed disks. Unmanaged disks are not supported because Site Recovery relies on the managed disk snapshot and replication capabilities to enable consistent, application-aware replication across regions. Managed disks also provide better performance, reliability, and integration with Azure's recovery services.

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 12

You are designing a high-availability solution for a stateful application that uses Azure NetApp Files (ANF) for persistent storage. The application must withstand a zonal failure within a region. What should you do?

Accepted Answer

Use Azure NetApp Files cross-zone replication to replicate data between availability zones.. Azure NetApp Files cross-zone replication asynchronously replicates volume data from a source zone to a destination zone within the same region, enabling failover if the primary zone fails. This meets the requirement for zonal failure tolerance while preserving the stateful application's persistent storage. Other options either lack native zone-redundant support for ANF or provide only backup, not continuous replication.

Answer

Use Azure Files with zone-redundant storage (ZRS) and SMB multi-channel.

Answer

Use Azure Backup for ANF with daily snapshots stored in a different zone.

Answer

Deploy the application in an Availability Set and use ANF volumes with zone-redundant storage (ZRS).

Question 13

You are designing a disaster recovery plan for an Azure virtual machine running a critical application. The solution must meet an RPO of 1 hour and an RTO of 4 hours. Which TWO actions should you take? (Choose TWO.)

Accepted Answer

Enable Azure Site Recovery for the VM with replication to a secondary region.. Azure Site Recovery (ASR) replicates VMs to a secondary region with configurable recovery point objectives (RPO) as low as 30 seconds, easily meeting the 1-hour RPO. Combined with a Recovery Services vault in the secondary region using geo-redundant storage (GRS), you ensure replicated data is stored durably and can be failed over within the 4-hour RTO, as ASR automates orchestration and failover.

Answer

Deploy the VM in an Availability Set and use premium storage.

Answer

Configure Azure Backup with daily snapshots stored in a Recovery Services vault.

Answer

Use Azure Front Door to distribute traffic between the primary and secondary regions.

Question 14

Contoso Ltd. is a global e-commerce company running its online store on Azure. The application consists of:
- Frontend: Azure App Service (Windows) in West US.
- Backend: Azure Kubernetes Service (AKS) cluster in West US.
- Database: Azure SQL Database (General Purpose, S2) in West US.
- Cache: Azure Cache for Redis (Standard C1) in West US.
- Storage: Azure Blob Storage (LRS) for product images.

Business continuity requirements:
- RPO: 5 minutes for the database.
- RTO: 1 hour for the entire application.
- The solution must survive a complete West US region outage.
- Budget is limited; minimize additional costs.

What should you recommend as the primary DR strategy?

Accepted Answer

Deploy a secondary region (East US) with a passive AKS cluster (minimal node count), a standby App Service plan (same tier), and a secondary Azure SQL Database in an auto-failover group. Use Azure Traffic Manager for frontend and configure Azure Cache for Redis with geo-replication. For Blob Storage, enable geo-redundant storage (GRS).. It meets the RPO of 5 minutes for the database using an auto-failover group with a secondary Azure SQL Database in East US, which provides continuous data synchronization with minimal data loss. The passive AKS cluster (minimal node count) and standby App Service plan minimize costs while ensuring RTO of 1 hour by allowing rapid scaling during failover. Azure Traffic Manager routes frontend traffic to the secondary region, and geo-replication for Redis Cache and GRS for Blob Storage provide data durability across regions, satisfying the requirement to survive a complete West US region outage.

Answer

Use Azure Backup for the database with 5-minute log backup frequency. For the app, use Azure App Service backup with frequency to a secondary region. For AKS, back up persistent volumes using Azure Backup. Restore everything in a secondary region during disaster.

Answer

Deploy the entire application across two Azure Availability Zones within West US. Use zone-redundant storage for blobs, zone-redundant App Service plan, and zone-redundant AKS. For SQL Database, use a zone-redundant configuration. For Redis, use Enterprise tier with zone redundancy.

Answer

Use Azure Site Recovery to replicate all VMs (including AKS nodes) to a secondary region. For the database, use Azure SQL Database active geo-replication. For Azure Cache for Redis, replicate data via geo-replication. Use Azure Traffic Manager for frontend traffic routing.

Question 15

Your company runs a critical workload on Azure Virtual Machines in a single region. You need to design a disaster recovery solution that meets a Recovery Point Objective (RPO) of 15 minutes and a Recovery Time Objective (RTO) of 1 hour. The solution should minimize cost. What should you recommend?

Accepted Answer

Implement Azure Site Recovery with replication to a secondary region.. Azure Site Recovery (ASR) provides continuous replication of Azure VMs to a secondary region, enabling failover within minutes. With replication intervals as low as 30 seconds for crash-consistent and 5 minutes for app-consistent snapshots, it comfortably meets the 15-minute RPO, and the orchestrated failover process can achieve the 1-hour RTO. ASR is the native Azure service designed for this exact scenario, minimizing cost by only charging for replication traffic and storage in the secondary region.

Answer

Configure Azure Backup with geo-redundant storage.

Answer

Deploy an active-passive pair of VMs using SQL Server Always On availability groups.

Answer

Use Azure Storage with read-access geo-redundant storage (RA-GRS) and failover the VMs.