Interview Questions on Azure Integration Services (AIS)—Set-II

Updated new interview questions and answers for Azure Integration Services (AIS), focusing on new aspects:

Previous Questions and Answers—Set-I 👉https://biztalktechie.com/interview-questions-on-azure-integration-services-ais/

General:

1. How does AIS handle integration between cloud and on-premises systems?

• AIS uses tools like Hybrid Connections and the on-premises data gateway to enable hybrid integration.

2. What is the role of Azure Event Hubs in AIS?

• Event Hubs ingests large amounts of event data, providing a scalable solution for event streaming.

3. Can AIS handle B2B integration scenarios?

• Yes, AIS supports B2B integrations through Logic Apps and Service Bus, providing support for protocols like EDI and AS2.

Azure Logic Apps:

4. How do Logic Apps handle parallel processing?

• Logic Apps support parallelism by using “For Each” loops, parallel branches, or child workflows.

5. What are stateful and stateless workflows in Logic Apps?

• Stateful workflows maintain context between steps, while stateless workflows are faster as they don’t persist state.

Azure Service Bus:

6. What are Service Bus message sessions?

• Sessions provide ordered message processing by correlating related messages, ensuring they are processed in sequence.

7. How does Service Bus handle duplicate messages?

• Service Bus has deduplication mechanisms using a message ID to identify and discard duplicates.

Azure Functions:

8. How do Azure Functions scale within AIS?

• Functions scale automatically based on the number of events, adjusting resources dynamically.

9. How does the Durable Functions framework enhance AIS?

• Durable Functions manage state and orchestration, making it possible to define long-running workflows in AIS.

Azure API Management:

10. What is an API revision in Azure API Management?
    • Revisions allow you to make non-breaking changes to APIs while keeping track of changes.
11. How do you secure APIs with Azure API Management?
    • API security can be enforced using OAuth2, JWT tokens, and subscription keys.

Azure Event Grid:

12. How do you subscribe to events in Azure Event Grid?
    • Event subscriptions are set up by defining an endpoint to receive events from a publisher.
13. What are dead-letter events in Event Grid?
    • Dead-letter events are undeliverable events that are stored for later retrieval.

Integration Patterns:

14. What is the role of CQRS in AIS?
    • CQRS (Command Query Responsibility Segregation) separates read and write operations, improving performance in AIS implementations.
15. What is a content-based router in AIS?
    • A content-based router directs messages based on content, ensuring appropriate processing.

Monitoring and Management:

16. What is Azure Metrics Advisor?
    • Metrics Advisor helps monitor and detect anomalies in Azure service performance, including AIS components.
17. How can you visualize integration flows in AIS?
    • Integration flows can be visualized through Azure Monitor dashboards and custom charts.

Hybrid Integration:

18. What are the limitations of Hybrid Connections in AIS?
    • Hybrid Connections only support TCP-based protocols, which limits integration with some legacy systems.
19. How does Azure Data Factory support hybrid data integration?
    • Data Factory can connect to both cloud and on-premises sources, allowing ETL processes across environments.

Security and Compliance:

20. How does Azure Integration Services support GDPR compliance?
    • AIS offers features like data encryption, auditing, and role-based access control to ensure compliance with GDPR.
21. What is Managed Identity in AIS?
    • Managed Identity simplifies authentication between Azure services without needing credentials.

Data Integration:

22. What is the difference between Azure Data Factory and Logic Apps for data integration?
    • Data Factory is optimized for ETL processes, while Logic Apps is better for real-time workflows and orchestration.
23. Can AIS handle streaming data integration?
    • Yes, Azure Stream Analytics and Event Hubs enable real-time data streaming within AIS.

Development and Customization:

24. How can you extend Azure Logic Apps with custom code?
    • Custom code can be executed in Logic Apps using Azure Functions or custom connectors.
25. What is a liquid template in Logic Apps?
    • Liquid templates allow you to transform JSON and XML payloads within Logic Apps.

Scaling and Performance:

26. What are the performance tuning options for Service Bus?
    • Performance can be tuned using message partitioning, batching, and setting appropriate message TTLs (Time-to-Live).
27. How does Event Grid ensure high availability?
    • Event Grid replicates events across multiple regions to ensure delivery even in the event of a failure.

Cost Management:

28. What are the cost implications of using Azure API Management?
    • API Management pricing is based on API requests, the number of APIs, and the chosen service tier (e.g., Developer, Premium).
29. How can Logic Apps’ costs be optimized?
    • Costs can be reduced by using fewer connectors, batching workflows, and avoiding excessive polling.

Best Practices:

30. What is the best way to manage secrets in AIS?
    • Secrets should be managed using Azure Key Vault, which integrates with Logic Apps and other AIS services.
31. How can you version Logic Apps workflows?
    • Workflow versions can be managed by cloning Logic Apps or using different versions in API Management.

Governance and Compliance:

32. How does Azure Policy help with AIS governance?
    • Azure Policy enforces standards and controls resource deployment, ensuring consistent AIS governance.
33. What role do tags play in AIS governance?
    • Tags help categorize and track resources across AIS for cost management and governance.

Disaster Recovery and Redundancy:

34. How do you implement disaster recovery for Azure Service Bus?
    • Service Bus supports geo-redundancy and failover for ensuring message reliability during outages.
35. What is the role of traffic manager in AIS disaster recovery?
    • Traffic Manager routes traffic across different regions, providing redundancy and failover capabilities for critical services.

Troubleshooting and Debugging:

36. How do you handle intermittent failures in Logic Apps?
    • Retry policies can be configured in Logic Apps to handle transient failures automatically.
37. What is the role of Application Insights in AIS debugging?
    • Application Insights tracks exceptions, requests, and performance metrics, aiding in debugging AIS workflows.

Migration and Integration Strategy:

38. How do you handle on-premises to cloud migration for AIS?
    • Migration strategies include lift-and-shift, hybrid models, and phased migration for minimal downtime.
39. What are common challenges in migrating to AIS?
    • Challenges include dealing with legacy systems, ensuring compatibility, and managing hybrid scenarios.

Vendor Lock-in:

40. What are alternatives to Azure Service Bus in AIS?
    • Alternatives include Apache Kafka, RabbitMQ, and other messaging services that can be integrated via connectors.
41. Can you use open-source tools within AIS?
    • Yes, AIS supports the integration of open-source tools and frameworks using APIs and connectors.

Performance Optimization:

42. How do you reduce latency in Event Grid?
    • Latency can be reduced by optimizing event handling workflows and using efficient endpoints.
43. How can caching improve AIS performance?
    • Caching can reduce the load on back-end services by storing frequently accessed data.

Lifecycle Management:

44. How do you deploy changes in Azure Logic Apps without downtime?
    • Use versioning and blue-green deployments to deploy changes with minimal impact.
45. What are the key aspects of continuous integration in AIS?
    • Key aspects include automated testing, version control, and the use of Azure DevOps for CI/CD pipelines.

Training and Support:

46. What certifications are available for AIS professionals?
    • Azure certifications like AZ-204 (Developer) and AZ-400 (DevOps) cover AIS topics.
47. What is Microsoft FastTrack for Azure?
    • FastTrack offers guidance and support for deploying and managing Azure solutions, including AIS.

Use Cases and Industry Applications:

48. How is AIS used in retail?
    • AIS powers omni-channel retail experiences, integrating e-commerce, inventory, and POS systems in real-time.
49. What role does AIS play in IoT?
    • AIS enables IoT scenarios by integrating IoT devices, event streams, and back-end systems for analytics and automation.
50. How is AIS utilized in healthcare?
    • AIS integrates electronic health records (EHRs), IoT devices, and patient management systems, ensuring compliance with HIPAA.

See Also

• BizTalk Server: Roles and Responsibilities
• BizTalk Interview Questions
• Azure Interview Questions