Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company runs a critical application on Azure VMs in a single region. The application uses Azure SQL Database as its data store. The company needs a disaster recovery solution that can fail over the entire application stack (VMs and database) to another region with a Recovery Point Objective (RPO) of 5 minutes and a Recovery Time Objective (RTO) of 1 hour. The solution must be automated and minimize manual steps. Which combination of Azure services should they implement?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Azure Site Recovery for VMs and active geo-replication with auto-failover groups for Azure SQL Database
ASR replicates VMs to the secondary region with low RPO, and active geo-replication with auto-failover groups provides database failover with RPO of 5 seconds and RTO of under 1 hour.
B
Distractor review
Azure Backup for VMs and Azure SQL Database backup to another region
Backup provides RPO of hours and RTO of minutes to hours, not suitable for 5-minute RPO and 1-hour RTO.
C
Distractor review
Azure Site Recovery for VMs and Azure DNS for database failover
Azure DNS does not replicate the database; it only manages DNS records.
D
Distractor review
Azure Load Balancer for VMs and Azure SQL Database failover groups
Load Balancer does not provide replication; failover groups need active geo-replication.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A company is designing hub-and-spoke networking. Spoke VNets must use a central Azure Firewall for outbound internet traffic. Which two configurations are required?
Question 2
A company is designing private access to a PaaS database from workloads in a VNet. The database should not be reachable over its public endpoint. What should be recommended?
Question 3
A data platform must support analytical queries over petabytes of files in a data lake, while preserving hierarchical namespaces and fine-grained ACLs. Which storage service should you design around?
Question 4
A database workload has an RPO of 15 minutes and an RTO of 4 hours. Cost is more important than near-zero data loss. Which design is usually more appropriate than synchronous multi-region replication?
Question 5
A hub-and-spoke Azure network must centralize outbound inspection and still allow spokes to resolve private endpoint DNS names. Which two components are commonly required? (Choose 2.)
Question 6
A multinational company uses Microsoft Entra ID and several Azure subscriptions. Security administrators need to review privileged role assignments every month and require justification for continued access. Which design should be recommended?
FAQ
Questions learners often ask
What does this AZ-305 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Azure Site Recovery for VMs and active geo-replication with auto-failover groups for Azure SQL Database — Azure Site Recovery (ASR) can replicate Azure VMs to a secondary region with RPO as low as 15 seconds and RTO of 1 hour. For Azure SQL Database, active geo-replication provides continuous replication with RPO of 5 seconds and supports automatic failover with auto-failover groups. Together, they meet the RPO/RTO requirements. Azure Backup is for backup, not replication. Azure DNS does not provide replication. Azure Load Balancer is for traffic distribution, not disaster recovery.
What should I do if I get this AZ-305 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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