Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company runs a critical application on Azure VMs in a single region. They need to implement disaster recovery using Azure Site Recovery (ASR) with a recovery point objective (RPO) of 15 minutes and a recovery time objective (RTO) of 2 hours. The database VMs have a very high data change rate, and the company wants to minimize replication costs. They also need to ensure that in the recovery plan, database VMs start before application VMs, and a script updates DNS records after failover. Which combination of ASR configurations should they use?
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
Distractor review
Enable multi-VM consistency groups and use recovery plans with manual ordering.
Multi-VM consistency groups increase complexity and costs; manual ordering does not automate the startup sequence or scripts.
B
Distractor review
Enable app-consistent replication and use deployment plans with pre- and post-actions.
App-consistent replication adds overhead and may cause unnecessary costs for high-change databases; deployment plans are not an ASR feature.
C
Distractor review
Enable replication with high churn protection and use recovery plans with availability groups.
High churn protection is not an ASR feature; availability groups are for SQL Server, not for VM startup ordering.
D
Best answer
Enable crash-consistent replication and use recovery plans with pre- and post-actions.
Crash-consistent replication meets the RPO and reduces costs. Recovery plans support pre-actions to control VM startup order and post-actions to run scripts after failover.
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: Enable crash-consistent replication and use recovery plans with pre- and post-actions. — For high data change rate VMs, crash-consistent replication is sufficient to meet the 15-minute RPO while keeping costs lower than app-consistent replication. ASR recovery plans allow adding pre-actions (to start VMs in order) and post-actions (to run scripts). Multi-VM consistency groups are not necessary here since crash-consistent replication provides adequate RPO and avoids additional overhead. Recovery plans with manual ordering would not automate the startup order or script execution.
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.
Discussion
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