The answer is to deploy AKS clusters in multiple regions, configure Pod Disruption Budgets (PDBs), and implement geo-redundant storage or traffic routing. PDBs are correct because they guarantee that a minimum number of pod replicas remain running during voluntary disruptions like node upgrades or cluster maintenance, which is essential for maintaining application uptime when failing over between regions in a multi-region AKS deployment. On the AZ-204 exam, this scenario tests your understanding of how to achieve high availability and disaster recovery across regions by combining infrastructure redundancy with application-level safeguards. A common trap is focusing only on cluster replication while neglecting PDBs, which protect against downtime during planned updates. Remember the memory tip: “PDBs prevent pod pandemonium during patching” — they ensure your replicas survive regional failovers intact.
AZ-204 Develop Azure compute solutions Practice Question
This AZ-204 practice question tests your understanding of develop azure compute solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company deploys a containerized application on Azure Kubernetes Service (AKS). They need to ensure high availability and disaster recovery across regions. Which THREE actions should they take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure Pod Disruption Budgets
Pod Disruption Budgets (PDBs) are correct because they ensure that a minimum number of pods remain available during voluntary disruptions, such as node maintenance or cluster upgrades. In a multi-region AKS deployment for high availability and disaster recovery, PDBs protect application uptime by preventing too many replicas from being taken down simultaneously, which is critical for maintaining service continuity across regional failovers.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use Azure Front Door for global load balancing
Why it's wrong here
Front Door is for CDN and web acceleration, not primary DR routing.
✓
Configure Pod Disruption Budgets
Why this is correct
PDBs ensure application availability during node updates.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use Azure Traffic Manager to route traffic
Why this is correct
Traffic Manager provides global load balancing and failover.
Related concept
Read the scenario before looking for a memorised answer.
✓
Deploy AKS clusters in multiple regions
Why this is correct
Multiple clusters across regions provide DR.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable Cluster Autoscaler
Why it's wrong here
Cluster Autoscaler handles node scaling, not DR.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Cluster Autoscaler (which only scales nodes within a region) with cross-region disaster recovery solutions, overlooking that true high availability across regions requires deploying multiple AKS clusters and using a global traffic router like Azure Traffic Manager.
Detailed technical explanation
How to think about this question
Pod Disruption Budgets work by specifying a `minAvailable` or `maxUnavailable` value, which the Kubernetes control plane enforces during voluntary disruptions like `kubectl drain`. In a multi-region AKS deployment, PDBs complement Azure Traffic Manager's endpoint monitoring by ensuring that even if a region fails over, the surviving cluster maintains enough pod replicas to handle the shifted load, preventing cascading failures. A real-world scenario is a retail application during a regional outage where PDBs prevent the remaining cluster from being overwhelmed by ensuring only a controlled number of pods are disrupted during updates.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Develop Azure compute solutions — This question tests Develop Azure compute solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure Pod Disruption Budgets — Pod Disruption Budgets (PDBs) are correct because they ensure that a minimum number of pods remain available during voluntary disruptions, such as node maintenance or cluster upgrades. In a multi-region AKS deployment for high availability and disaster recovery, PDBs protect application uptime by preventing too many replicas from being taken down simultaneously, which is critical for maintaining service continuity across regional failovers.
What should I do if I get this AZ-204 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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