AZ-301 Case Studies & Practical Application 5

Question 1

A bank must archive transaction logs older than 90 days to cold storage automatically while keeping recent logs immediately accessible for audits. Which Azure Blob Storage feature implements this with no custom code?

Accepted Answer

Azure Blob Storage lifecycle management policies that transition blobs to Archive tier after 90 days

Answer

Blob Storage lifecycle management policies automatically transition blobs to cooler tiers (Cool, Cold, Archive) based on last-modified age without custom code.

Question 2

A company runs a monolithic application on Azure VMs and wants to break it into microservices. They need service discovery, load balancing between services, and secure mTLS communication without changing application code. Which Azure service provides this?

Accepted Answer

Azure Kubernetes Service with a service mesh (e.g., Istio or Linkerd)

Answer

A service mesh on AKS provides transparent mTLS, service discovery, and load balancing as infrastructure-level capabilities without application code changes.

Question 3

An architect must ensure that a critical Azure Resource Manager template deployment is rolled back automatically if any resource in the deployment fails. Which deployment mode achieves this?

Accepted Answer

ARM template deployment with a rollback-on-failure linked to a last-successful deployment

Answer

ARM deployments support automatic rollback on failure by specifying `rollbackOnError` to redeploy the last successful deployment state.

Question 4

A company needs to expose an on-premises REST API to Azure services securely without opening inbound firewall rules on their corporate network. Which Azure hybrid connectivity option achieves this?

Accepted Answer

Azure API Management with Azure Relay (Hybrid Connections)

Answer

Azure Relay Hybrid Connections establish an outbound connection from on-premises to Azure, allowing Azure services to call on-premises APIs without inbound firewall rules.

Question 5

A media company stores large video files in Azure Blob Storage and must prevent accidental deletion by operations staff while still allowing authorized updates. Which approach provides the right balance?

Accepted Answer

Apply a resource lock of type 'CanNotDelete' and use RBAC to limit who holds the Storage Blob Data Contributor role

Answer

A CanNotDelete resource lock prevents deletion while RBAC controls which principals can write updates, balancing protection with operational flexibility.

AZ-301 - Microsoft Azure Solutions Architect Expert Practice Test

AZ-301 - Microsoft Azure Solutions Architect Expert Practice Test

AZ-301 Case Studies & Practical Application 5