AZ-301 Technology & Digital Applications 2 — Questions and Answers
Question 1: A company needs to build a real-time event processing pipeline on Azure that can handle 1 million events per second with sub-second latency. Which service should be the primary ingestion layer?
- Azure Service Bus
- Azure Event Hubs (Correct answer)
- Azure Queue Storage
- Azure Notification Hubs
Correct answer: Azure Event Hubs
Azure Event Hubs is designed for high-throughput event ingestion, supporting millions of events per second with low latency using partitioned consumer model.
Question 2: An architect is designing a multi-region Azure deployment. Which Azure Traffic Manager routing method should be used to route users to the region with the lowest network latency?
- Priority routing
- Weighted routing
- Performance routing (Correct answer)
- Geographic routing
Correct answer: Performance routing
Performance routing in Azure Traffic Manager directs users to the endpoint with the lowest network latency based on their geographic location.
Question 3: A solution requires storing petabytes of unstructured data with infrequent access and a requirement for 99.999999999% durability. Which Azure Storage tier is most cost-effective?
- Hot tier
- Cool tier
- Archive tier (Correct answer)
- Premium tier
Correct answer: Archive tier
Archive tier offers the lowest storage cost for rarely accessed data while maintaining 11 nines of durability, though retrieval has latency.
Question 4: An enterprise application uses Azure Active Directory for authentication. Developers need to implement OAuth 2.0 authorization code flow. Which endpoint version should be used for the broadest compatibility with both personal and work accounts?
- v1.0 endpoint
- v2.0 endpoint (Correct answer)
- ADFS endpoint
- B2C endpoint
Correct answer: v2.0 endpoint
The Microsoft identity platform v2.0 endpoint supports both personal Microsoft accounts and Azure AD work/school accounts using a unified authentication flow.
Question 5: A company wants to implement a hub-spoke network topology in Azure. What is the primary purpose of Virtual Network Peering in this architecture?
- To encrypt traffic between VNets
- To enable resources in different VNets to communicate using private IP addresses (Correct answer)
- To provide public internet access to spoke VNets
- To apply network security groups across multiple VNets
Correct answer: To enable resources in different VNets to communicate using private IP addresses
VNet Peering connects virtual networks so resources in each VNet can communicate with each other using private IP addresses as if they were in the same network.
Question 6: When designing an Azure Kubernetes Service (AKS) cluster for a production workload, what should be configured to ensure pods are distributed across multiple availability zones?
- Pod Disruption Budgets
- Horizontal Pod Autoscaler
- Availability Zone node pools (Correct answer)
- Cluster Autoscaler
Correct answer: Availability Zone node pools
AKS node pools can be configured to span multiple availability zones, ensuring pods are scheduled across zones for high availability against zone failures.
Question 7: A developer needs to cache frequently accessed data from Azure SQL Database to reduce latency. Which Azure service provides a fully managed, in-memory cache with Redis compatibility?
- Azure Memcached
- Azure Cache for Redis (Correct answer)
- Azure Table Storage
- Azure CDN
Correct answer: Azure Cache for Redis
Azure Cache for Redis is a fully managed, open-source-compatible in-memory data store built on Redis, ideal for reducing database load and improving application latency.
AZ-301 Technology & Digital Applications 2
A company needs to build a real-time event processing pipeline on Azure that can handle 1 million events per second with sub-second latency.
Which service should be the primary ingestion layer?