Microsoft AZ-305 Compute High Availability Practice Test

 

Topic 15 focuses on High Availability for Compute Solutions for the Microsoft Certified: Azure Solutions Architect Expert certification and the AZ-305 exam, using Microsoft Azure solution-architecture scenarios. For broader exam preparation, review the Microsoft Azure Solutions Architect Expert AZ-305 Exam Dumps page. Each question includes a concise explanation of the correct answer and the technical reason the other choices are incorrect.

Question 1

To design compute that survives a datacenter or zone failure within one region, which Azure design option should be selected?

1. Azure Container Apps zone redundancy
2. Virtual Machine Scale Sets
3. Azure Availability Zones
4. App Service zone redundancy

Correct Answer: C

 

Correct Answer

Answer C is correct because Azure Availability Zones is designed to design compute that survives a datacenter or zone failure within one region. Azure Availability Zones are physically separate datacenter groupings within a region with independent power, cooling, and networking.

Incorrect Answers

Answer A is incorrect because Azure Container Apps zone redundancy can be useful in Azure architectures, but its primary role is to increase resilience of managed container applications to zone failure; it is not the best match for the stated priority.

Answer B is incorrect because Virtual Machine Scale Sets can be useful in Azure architectures, but its primary role is to run horizontally scalable VM workloads with automated capacity management; it is not the best match for the stated priority.

Answer D is incorrect because App Service zone redundancy can be useful in Azure architectures, but its primary role is to improve availability of web applications against zone failure; it is not the best match for the stated priority.

 

Question 2

Which Azure capability can distribute environment infrastructure across Availability Zones in supported regions?

1. Azure Container Apps zone redundancy
2. Azure Functions Premium plan
3. Traffic Manager
4. Azure Availability Zones

Correct Answer: A

 

Correct Answer

Answer A is correct because Azure Container Apps zone redundancy matches the described capability and is intended to increase resilience of managed container applications to zone failure.

Incorrect Answers

Answer B is incorrect because Azure Functions Premium plan is intended to run serverless applications that need reduced cold-start risk and advanced networking, which is a different architectural function.

Answer C is incorrect because Traffic Manager is intended to provide global DNS-level failover between application endpoints, which is a different architectural function.

Answer D is incorrect because Azure Availability Zones is intended to design compute that survives a datacenter or zone failure within one region, which is a different architectural function.

 

Question 3

When considering Traffic Manager, which requirement supports that choice?

1. To run horizontally scalable VM workloads with automated capacity management.
2. To improve availability of web applications against zone failure.
3. To maximize resilience and reduce failover time for critical globally distributed applications.
4. To provide global DNS-level failover between application endpoints.

Correct Answer: D

 

Correct Answer

Answer D is correct because Traffic Manager uses DNS-based traffic routing across public endpoints and supports health-based failover policies.

Incorrect Answers

Answer A is incorrect because that outcome is more directly associated with Virtual Machine Scale Sets, not Traffic Manager.

Answer B is incorrect because that outcome is more directly associated with App Service zone redundancy, not Traffic Manager.

Answer C is incorrect because that outcome is more directly associated with Active-active multi-region architecture, not Traffic Manager.

 

Question 4

Which Azure capability deploy and manage groups of load-balanced VMs with autoscaling and support for zone-spanning designs?

1. Azure Functions Premium plan
2. Virtual Machine Scale Sets
3. Availability set
4. Azure Kubernetes Service zone-aware node pools

Correct Answer: B

 

Correct Answer

Answer B is correct because Virtual Machine Scale Sets matches the described capability and is intended to run horizontally scalable VM workloads with automated capacity management.

Incorrect Answers

Answer A is incorrect because Azure Functions Premium plan is intended to run serverless applications that need reduced cold-start risk and advanced networking, which is a different architectural function.

Answer C is incorrect because Availability set is intended to reduce correlated host or maintenance failures for legacy VM deployments, which is a different architectural function.

Answer D is incorrect because Azure Kubernetes Service zone-aware node pools is intended to protect Kubernetes worker capacity from a zone outage, which is a different architectural function.

 

Question 5

An enterprise architect needs to design compute that survives a datacenter or zone failure within one region. Which Azure service or capability is the best fit?

1. Azure Availability Zones
2. App Service zone redundancy
3. Virtual Machine Scale Sets
4. Azure Container Apps zone redundancy

Correct Answer: A

 

Correct Answer

Answer A is correct because Azure Availability Zones are physically separate datacenter groupings within a region with independent power, cooling, and networking. It directly meets the requirement to design compute that survives a datacenter or zone failure within one region.

Incorrect Answers

Answer B is incorrect because App Service zone redundancy is used to improve availability of web applications against zone failure; that does not directly satisfy the requirement in this scenario.

Answer C is incorrect because Virtual Machine Scale Sets is used to run horizontally scalable VM workloads with automated capacity management; that does not directly satisfy the requirement in this scenario.

Answer D is incorrect because Azure Container Apps zone redundancy is used to increase resilience of managed container applications to zone failure; that does not directly satisfy the requirement in this scenario.

 

Question 6

To protect Kubernetes worker capacity from a zone outage, which Azure design option should be selected?

1. Active-active multi-region architecture
2. Azure Container Apps zone redundancy
3. Azure Front Door
4. Azure Kubernetes Service zone-aware node pools

Correct Answer: D

 

Correct Answer

Answer D is correct because Azure Kubernetes Service zone-aware node pools is designed to protect Kubernetes worker capacity from a zone outage. Azure Kubernetes Service zone-aware node pools place AKS nodes across Availability Zones in supported regions.

Incorrect Answers

Answer A is incorrect because Active-active multi-region architecture can be useful in Azure architectures, but its primary role is to maximize resilience and reduce failover time for critical globally distributed applications; it is not the best match for the stated priority.

Answer B is incorrect because Azure Container Apps zone redundancy can be useful in Azure architectures, but its primary role is to increase resilience of managed container applications to zone failure; it is not the best match for the stated priority.

Answer C is incorrect because Azure Front Door can be useful in Azure architectures, but its primary role is to route users to healthy regional web application endpoints during regional failures; it is not the best match for the stated priority.

 

Question 7

When considering Active-active multi-region architecture, which requirement supports that choice?

1. To maximize resilience and reduce failover time for critical globally distributed applications.
2. To reduce correlated host or maintenance failures for legacy VM deployments.
3. To protect Kubernetes worker capacity from a zone outage.
4. To design compute that survives a datacenter or zone failure within one region.

Correct Answer: A

 

Correct Answer

Answer A is correct because Active-active multi-region architecture serves production traffic from multiple regions concurrently.

Incorrect Answers

Answer B is incorrect because that outcome is more directly associated with Availability set, not Active-active multi-region architecture.

Answer C is incorrect because that outcome is more directly associated with Azure Kubernetes Service zone-aware node pools, not Active-active multi-region architecture.

Answer D is incorrect because that outcome is more directly associated with Azure Availability Zones, not Active-active multi-region architecture.

 

Question 8

Which Azure capability are physically separate datacenter groupings within a region with independent power, cooling, and networking?

1. Virtual Machine Scale Sets
2. App Service zone redundancy
3. Azure Availability Zones
4. Azure Container Apps zone redundancy

Correct Answer: C

 

Correct Answer

Answer C is correct because Azure Availability Zones matches the described capability and is intended to design compute that survives a datacenter or zone failure within one region.

Incorrect Answers

Answer A is incorrect because Virtual Machine Scale Sets is intended to run horizontally scalable VM workloads with automated capacity management, which is a different architectural function.

Answer B is incorrect because App Service zone redundancy is intended to improve availability of web applications against zone failure, which is a different architectural function.

Answer D is incorrect because Azure Container Apps zone redundancy is intended to increase resilience of managed container applications to zone failure, which is a different architectural function.

 

Question 9

To maximize resilience and reduce failover time for critical globally distributed applications, which Azure design option should be selected?

1. Azure Availability Zones
2. Azure Kubernetes Service zone-aware node pools
3. Availability set
4. Active-active multi-region architecture

Correct Answer: D

 

Correct Answer

Answer D is correct because Active-active multi-region architecture serves production traffic from multiple regions concurrently. It directly meets the requirement to maximize resilience and reduce failover time for critical globally distributed applications.

Incorrect Answers

Answer A is incorrect because Azure Availability Zones is used to design compute that survives a datacenter or zone failure within one region; that does not directly satisfy the requirement in this scenario.

Answer B is incorrect because Azure Kubernetes Service zone-aware node pools is used to protect Kubernetes worker capacity from a zone outage; that does not directly satisfy the requirement in this scenario.

Answer C is incorrect because Availability set is used to reduce correlated host or maintenance failures for legacy VM deployments; that does not directly satisfy the requirement in this scenario.

 

Question 10

To run horizontally scalable VM workloads with automated capacity management, which Azure design option should be selected?

1. Azure Kubernetes Service zone-aware node pools
2. Azure Functions Premium plan
3. Availability set
4. Virtual Machine Scale Sets

Correct Answer: D

 

Correct Answer

Answer D is correct because Virtual Machine Scale Sets is designed to run horizontally scalable VM workloads with automated capacity management. Virtual Machine Scale Sets deploy and manage groups of load-balanced VMs with autoscaling and support for zone-spanning designs.

Incorrect Answers

Answer A is incorrect because Azure Kubernetes Service zone-aware node pools can be useful in Azure architectures, but its primary role is to protect Kubernetes worker capacity from a zone outage; it is not the best match for the stated priority.

Answer B is incorrect because Azure Functions Premium plan can be useful in Azure architectures, but its primary role is to run serverless applications that need reduced cold-start risk and advanced networking; it is not the best match for the stated priority.

Answer C is incorrect because Availability set can be useful in Azure architectures, but its primary role is to reduce correlated host or maintenance failures for legacy VM deployments; it is not the best match for the stated priority.

 

Question 11

For Azure Availability Zones, which statement is accurate?

1. Deploy and manage groups of load-balanced VMs with autoscaling and support for zone-spanning designs.
2. Distributes supported App Service plan instances across Availability Zones in a region.
3. Are physically separate datacenter groupings within a region with independent power, cooling, and networking.
4. Can distribute environment infrastructure across Availability Zones in supported regions.

Correct Answer: C

 

Correct Answer

Answer C is correct because Azure Availability Zones are physically separate datacenter groupings within a region with independent power, cooling, and networking.

Incorrect Answers

Answer A is incorrect because that description belongs to Virtual Machine Scale Sets, whose purpose is to run horizontally scalable VM workloads with automated capacity management.

Answer B is incorrect because that description belongs to App Service zone redundancy, whose purpose is to improve availability of web applications against zone failure.

Answer D is incorrect because that description belongs to Azure Container Apps zone redundancy, whose purpose is to increase resilience of managed container applications to zone failure.

 

Question 12

For Azure Kubernetes Service zone-aware node pools, which statement is accurate?

1. Can distribute environment infrastructure across Availability Zones in supported regions.
2. Place AKS nodes across Availability Zones in supported regions.
3. Serves production traffic from multiple regions concurrently.
4. Provides global Layer 7 routing and health-based failover across regional application endpoints.

Correct Answer: B

 

Correct Answer

Answer B is correct because Azure Kubernetes Service zone-aware node pools place AKS nodes across Availability Zones in supported regions.

Incorrect Answers

Answer A is incorrect because that description belongs to Azure Container Apps zone redundancy, whose purpose is to increase resilience of managed container applications to zone failure.

Answer C is incorrect because that description belongs to Active-active multi-region architecture, whose purpose is to maximize resilience and reduce failover time for critical globally distributed applications.

Answer D is incorrect because that description belongs to Azure Front Door, whose purpose is to route users to healthy regional web application endpoints during regional failures.

 

Question 13

For Traffic Manager, which statement is accurate?

1. Uses DNS-based traffic routing across public endpoints and supports health-based failover policies.
2. Serves production traffic from multiple regions concurrently.
3. Distributes supported App Service plan instances across Availability Zones in a region.
4. Deploy and manage groups of load-balanced VMs with autoscaling and support for zone-spanning designs.

Correct Answer: A

 

Correct Answer

Answer A is correct because Traffic Manager uses DNS-based traffic routing across public endpoints and supports health-based failover policies.

Incorrect Answers

Answer B is incorrect because that description belongs to Active-active multi-region architecture, whose purpose is to maximize resilience and reduce failover time for critical globally distributed applications.

Answer C is incorrect because that description belongs to App Service zone redundancy, whose purpose is to improve availability of web applications against zone failure.

Answer D is incorrect because that description belongs to Virtual Machine Scale Sets, whose purpose is to run horizontally scalable VM workloads with automated capacity management.

 

Question 14

Which Azure capability provides pre-warmed instances, virtual network integration, and scale characteristics suitable for more predictable serverless availability requirements?

1. Azure Functions Premium plan
2. Azure Front Door
3. Virtual Machine Scale Sets
4. Active-active multi-region architecture

Correct Answer: A

 

Correct Answer

Answer A is correct because Azure Functions Premium plan matches the described capability and is intended to run serverless applications that need reduced cold-start risk and advanced networking.

Incorrect Answers

Answer B is incorrect because Azure Front Door is intended to route users to healthy regional web application endpoints during regional failures, which is a different architectural function.

Answer C is incorrect because Virtual Machine Scale Sets is intended to run horizontally scalable VM workloads with automated capacity management, which is a different architectural function.

Answer D is incorrect because Active-active multi-region architecture is intended to maximize resilience and reduce failover time for critical globally distributed applications, which is a different architectural function.

 

Question 15

For Active-active multi-region architecture, which statement is accurate?

1. Place AKS nodes across Availability Zones in supported regions.
2. Distributes VMs across fault and update domains within a datacenter infrastructure where zones are not used.
3. Serves production traffic from multiple regions concurrently.
4. Are physically separate datacenter groupings within a region with independent power, cooling, and networking.

Correct Answer: C

 

Correct Answer

Answer C is correct because Active-active multi-region architecture serves production traffic from multiple regions concurrently.

Incorrect Answers

Answer A is incorrect because that description belongs to Azure Kubernetes Service zone-aware node pools, whose purpose is to protect Kubernetes worker capacity from a zone outage.

Answer B is incorrect because that description belongs to Availability set, whose purpose is to reduce correlated host or maintenance failures for legacy VM deployments.

Answer D is incorrect because that description belongs to Azure Availability Zones, whose purpose is to design compute that survives a datacenter or zone failure within one region.

 

Question 16

For Azure Functions Premium plan, which statement is accurate?

1. Provides global Layer 7 routing and health-based failover across regional application endpoints.
2. Deploy and manage groups of load-balanced VMs with autoscaling and support for zone-spanning designs.
3. Serves production traffic from multiple regions concurrently.
4. Provides pre-warmed instances, virtual network integration, and scale characteristics suitable for more predictable serverless availability requirements.

Correct Answer: D

 

Correct Answer

Answer D is correct because Azure Functions Premium plan provides pre-warmed instances, virtual network integration, and scale characteristics suitable for more predictable serverless availability requirements.

Incorrect Answers

Answer A is incorrect because that description belongs to Azure Front Door, whose purpose is to route users to healthy regional web application endpoints during regional failures.

Answer B is incorrect because that description belongs to Virtual Machine Scale Sets, whose purpose is to run horizontally scalable VM workloads with automated capacity management.

Answer C is incorrect because that description belongs to Active-active multi-region architecture, whose purpose is to maximize resilience and reduce failover time for critical globally distributed applications.

 

Question 17

When considering Availability set, which requirement supports that choice?

1. To route users to healthy regional web application endpoints during regional failures.
2. To improve availability of web applications against zone failure.
3. To reduce correlated host or maintenance failures for legacy VM deployments.
4. To increase resilience of managed container applications to zone failure.

Correct Answer: C

 

Correct Answer

Answer C is correct because Availability set distributes VMs across fault and update domains within a datacenter infrastructure where zones are not used.

Incorrect Answers

Answer A is incorrect because that outcome is more directly associated with Azure Front Door, not Availability set.

Answer B is incorrect because that outcome is more directly associated with App Service zone redundancy, not Availability set.

Answer D is incorrect because that outcome is more directly associated with Azure Container Apps zone redundancy, not Availability set.

 

Question 18

Which Azure capability serves production traffic from multiple regions concurrently?

1. Azure Kubernetes Service zone-aware node pools
2. Azure Availability Zones
3. Availability set
4. Active-active multi-region architecture

Correct Answer: D

 

Correct Answer

Answer D is correct because Active-active multi-region architecture matches the described capability and is intended to maximize resilience and reduce failover time for critical globally distributed applications.

Incorrect Answers

Answer A is incorrect because Azure Kubernetes Service zone-aware node pools is intended to protect Kubernetes worker capacity from a zone outage, which is a different architectural function.

Answer B is incorrect because Azure Availability Zones is intended to design compute that survives a datacenter or zone failure within one region, which is a different architectural function.

Answer C is incorrect because Availability set is intended to reduce correlated host or maintenance failures for legacy VM deployments, which is a different architectural function.

 

Question 19

For Azure Front Door, which statement is accurate?

1. Uses DNS-based traffic routing across public endpoints and supports health-based failover policies.
2. Provides global Layer 7 routing and health-based failover across regional application endpoints.
3. Distributes VMs across fault and update domains within a datacenter infrastructure where zones are not used.
4. Are physically separate datacenter groupings within a region with independent power, cooling, and networking.

Correct Answer: B

 

Correct Answer

Answer B is correct because Azure Front Door provides global Layer 7 routing and health-based failover across regional application endpoints.

Incorrect Answers

Answer A is incorrect because that description belongs to Traffic Manager, whose purpose is to provide global DNS-level failover between application endpoints.

Answer C is incorrect because that description belongs to Availability set, whose purpose is to reduce correlated host or maintenance failures for legacy VM deployments.

Answer D is incorrect because that description belongs to Azure Availability Zones, whose purpose is to design compute that survives a datacenter or zone failure within one region.

 

Question 20

For Availability set, which statement is accurate?

1. Distributes VMs across fault and update domains within a datacenter infrastructure where zones are not used.
2. Can distribute environment infrastructure across Availability Zones in supported regions.
3. Distributes supported App Service plan instances across Availability Zones in a region.
4. Provides global Layer 7 routing and health-based failover across regional application endpoints.

Correct Answer: A

 

Correct Answer

Answer A is correct because Availability set distributes VMs across fault and update domains within a datacenter infrastructure where zones are not used.

Incorrect Answers

Answer B is incorrect because that description belongs to Azure Container Apps zone redundancy, whose purpose is to increase resilience of managed container applications to zone failure.

Answer C is incorrect because that description belongs to App Service zone redundancy, whose purpose is to improve availability of web applications against zone failure.

Answer D is incorrect because that description belongs to Azure Front Door, whose purpose is to route users to healthy regional web application endpoints during regional failures.

 

Question 21

Which Azure capability place AKS nodes across Availability Zones in supported regions?

1. Active-active multi-region architecture
2. Azure Kubernetes Service zone-aware node pools
3. Azure Container Apps zone redundancy
4. Azure Front Door

Correct Answer: B

 

Correct Answer

Answer B is correct because Azure Kubernetes Service zone-aware node pools matches the described capability and is intended to protect Kubernetes worker capacity from a zone outage.

Incorrect Answers

Answer A is incorrect because Active-active multi-region architecture is intended to maximize resilience and reduce failover time for critical globally distributed applications, which is a different architectural function.

Answer C is incorrect because Azure Container Apps zone redundancy is intended to increase resilience of managed container applications to zone failure, which is a different architectural function.

Answer D is incorrect because Azure Front Door is intended to route users to healthy regional web application endpoints during regional failures, which is a different architectural function.

 

Question 22

To route users to healthy regional web application endpoints during regional failures, which Azure design option should be selected?

1. Traffic Manager
2. Azure Availability Zones
3. Availability set
4. Azure Front Door

Correct Answer: D

 

Correct Answer

Answer D is correct because Azure Front Door is designed to route users to healthy regional web application endpoints during regional failures. Azure Front Door provides global Layer 7 routing and health-based failover across regional application endpoints.

Incorrect Answers

Answer A is incorrect because Traffic Manager can be useful in Azure architectures, but its primary role is to provide global DNS-level failover between application endpoints; it is not the best match for the stated priority.

Answer B is incorrect because Azure Availability Zones can be useful in Azure architectures, but its primary role is to design compute that survives a datacenter or zone failure within one region; it is not the best match for the stated priority.

Answer C is incorrect because Availability set can be useful in Azure architectures, but its primary role is to reduce correlated host or maintenance failures for legacy VM deployments; it is not the best match for the stated priority.

 

Question 23

Which Azure capability provides global Layer 7 routing and health-based failover across regional application endpoints?

1. Traffic Manager
2. Azure Front Door
3. Azure Availability Zones
4. Availability set

Correct Answer: B

 

Correct Answer

Answer B is correct because Azure Front Door matches the described capability and is intended to route users to healthy regional web application endpoints during regional failures.

Incorrect Answers

Answer A is incorrect because Traffic Manager is intended to provide global DNS-level failover between application endpoints, which is a different architectural function.

Answer C is incorrect because Azure Availability Zones is intended to design compute that survives a datacenter or zone failure within one region, which is a different architectural function.

Answer D is incorrect because Availability set is intended to reduce correlated host or maintenance failures for legacy VM deployments, which is a different architectural function.

 

Question 24

To increase resilience of managed container applications to zone failure, which Azure design option should be selected?

1. Azure Container Apps zone redundancy
2. Azure Functions Premium plan
3. Traffic Manager
4. Azure Availability Zones

Correct Answer: A

 

Correct Answer

Answer A is correct because Azure Container Apps zone redundancy is designed to increase resilience of managed container applications to zone failure. Azure Container Apps zone redundancy can distribute environment infrastructure across Availability Zones in supported regions.

Incorrect Answers

Answer B is incorrect because Azure Functions Premium plan can be useful in Azure architectures, but its primary role is to run serverless applications that need reduced cold-start risk and advanced networking; it is not the best match for the stated priority.

Answer C is incorrect because Traffic Manager can be useful in Azure architectures, but its primary role is to provide global DNS-level failover between application endpoints; it is not the best match for the stated priority.

Answer D is incorrect because Azure Availability Zones can be useful in Azure architectures, but its primary role is to design compute that survives a datacenter or zone failure within one region; it is not the best match for the stated priority.

 

Question 25

An AKS application must retain worker capacity if one availability zone becomes unavailable. Which node-pool design should the architect use?

1. Active-active multi-region architecture
2. Azure Front Door
3. Azure Kubernetes Service zone-aware node pools
4. Azure Container Apps zone redundancy

Correct Answer: C

 

Correct Answer

Answer C is correct because Azure Kubernetes Service zone-aware node pools place AKS nodes across Availability Zones in supported regions. It directly meets the requirement to protect Kubernetes worker capacity from a zone outage.

Incorrect Answers

Answer A is incorrect because Active-active multi-region architecture is used to maximize resilience and reduce failover time for critical globally distributed applications; that does not directly satisfy the requirement in this scenario.

Answer B is incorrect because Azure Front Door is used to route users to healthy regional web application endpoints during regional failures; that does not directly satisfy the requirement in this scenario.

Answer D is incorrect because Azure Container Apps zone redundancy is used to increase resilience of managed container applications to zone failure; that does not directly satisfy the requirement in this scenario.

 

Question 26

To run serverless applications that need reduced cold-start risk and advanced networking, which Azure design option should be selected?

1. Virtual Machine Scale Sets
2. Azure Functions Premium plan
3. Azure Front Door
4. Active-active multi-region architecture

Correct Answer: B

 

Correct Answer

Answer B is correct because Azure Functions Premium plan is designed to run serverless applications that need reduced cold-start risk and advanced networking. Azure Functions Premium plan provides pre-warmed instances, virtual network integration, and scale characteristics suitable for more predictable serverless availability requirements.

Incorrect Answers

Answer A is incorrect because Virtual Machine Scale Sets can be useful in Azure architectures, but its primary role is to run horizontally scalable VM workloads with automated capacity management; it is not the best match for the stated priority.

Answer C is incorrect because Azure Front Door can be useful in Azure architectures, but its primary role is to route users to healthy regional web application endpoints during regional failures; it is not the best match for the stated priority.

Answer D is incorrect because Active-active multi-region architecture can be useful in Azure architectures, but its primary role is to maximize resilience and reduce failover time for critical globally distributed applications; it is not the best match for the stated priority.

 

Question 27

A stateless workload runs on multiple VMs and must add or remove instances as demand changes. Which compute resource supports this automated capacity management?

1. Azure Functions Premium plan
2. Virtual Machine Scale Sets
3. Azure Kubernetes Service zone-aware node pools
4. Availability set

Correct Answer: B

 

Correct Answer

Answer B is correct because Virtual Machine Scale Sets deploy and manage groups of load-balanced VMs with autoscaling and support for zone-spanning designs. It directly meets the requirement to run horizontally scalable VM workloads with automated capacity management.

Incorrect Answers

Answer A is incorrect because Azure Functions Premium plan is used to run serverless applications that need reduced cold-start risk and advanced networking; that does not directly satisfy the requirement in this scenario.

Answer C is incorrect because Azure Kubernetes Service zone-aware node pools is used to protect Kubernetes worker capacity from a zone outage; that does not directly satisfy the requirement in this scenario.

Answer D is incorrect because Availability set is used to reduce correlated host or maintenance failures for legacy VM deployments; that does not directly satisfy the requirement in this scenario.

 

Question 28

To improve availability of web applications against zone failure, which Azure design option should be selected?

1. App Service zone redundancy
2. Azure Kubernetes Service zone-aware node pools
3. Azure Functions Premium plan
4. Traffic Manager

Correct Answer: A

 

Correct Answer

Answer A is correct because App Service zone redundancy is designed to improve availability of web applications against zone failure. App Service zone redundancy distributes supported App Service plan instances across Availability Zones in a region.

Incorrect Answers

Answer B is incorrect because Azure Kubernetes Service zone-aware node pools can be useful in Azure architectures, but its primary role is to protect Kubernetes worker capacity from a zone outage; it is not the best match for the stated priority.

Answer C is incorrect because Azure Functions Premium plan can be useful in Azure architectures, but its primary role is to run serverless applications that need reduced cold-start risk and advanced networking; it is not the best match for the stated priority.

Answer D is incorrect because Traffic Manager can be useful in Azure architectures, but its primary role is to provide global DNS-level failover between application endpoints; it is not the best match for the stated priority.

 

Question 29

Which Azure capability distributes supported App Service plan instances across Availability Zones in a region?

1. Traffic Manager
2. App Service zone redundancy
3. Azure Kubernetes Service zone-aware node pools
4. Azure Functions Premium plan

Correct Answer: B

 

Correct Answer

Answer B is correct because App Service zone redundancy matches the described capability and is intended to improve availability of web applications against zone failure.

Incorrect Answers

Answer A is incorrect because Traffic Manager is intended to provide global DNS-level failover between application endpoints, which is a different architectural function.

Answer C is incorrect because Azure Kubernetes Service zone-aware node pools is intended to protect Kubernetes worker capacity from a zone outage, which is a different architectural function.

Answer D is incorrect because Azure Functions Premium plan is intended to run serverless applications that need reduced cold-start risk and advanced networking, which is a different architectural function.

 

Question 30

To reduce correlated host or maintenance failures for legacy VM deployments, which Azure design option should be selected?

1. Azure Front Door
2. Azure Container Apps zone redundancy
3. Availability set
4. App Service zone redundancy

Correct Answer: C

 

Correct Answer

Answer C is correct because Availability set distributes VMs across fault and update domains within a datacenter infrastructure where zones are not used. It directly meets the requirement to reduce correlated host or maintenance failures for legacy VM deployments.

Incorrect Answers

Answer A is incorrect because Azure Front Door is used to route users to healthy regional web application endpoints during regional failures; that does not directly satisfy the requirement in this scenario.

Answer B is incorrect because Azure Container Apps zone redundancy is used to increase resilience of managed container applications to zone failure; that does not directly satisfy the requirement in this scenario.

Answer D is incorrect because App Service zone redundancy is used to improve availability of web applications against zone failure; that does not directly satisfy the requirement in this scenario.