1. Azure Integration Services Questions

Logic Apps

Q1. Why would you choose Logic Apps instead of Azure Functions?

Expected answer:


Q2. Logic Apps Consumption vs Standard?

Cover:


Q3. How do you handle failures and retries in Logic Apps?

Discuss:


Service Bus

Q4. Service Bus Queue vs Topic?

Expected:


Q5. What is a Dead Letter Queue and when would you use it?


Q6. How would you guarantee message delivery in Azure Service Bus?

Discuss:


Q7. What is Sessions in Service Bus?


Event Grid

Q8. Event Grid vs Service Bus vs Event Hub?

This is a favourite architect question.

Expected comparison:

Service

Purpose

Event Grid

Event-driven

Service Bus

Enterprise messaging

Event Hub

Streaming


Q9. When would you use Event Grid instead of Service Bus?


Azure Functions

Q10. When should Azure Functions be used in an integration solution?

Examples:


Q11. Consumption Plan vs Premium Plan?


API Management

Q12. Why use API Management?

Expected:


Q13. Explain API versioning strategies.


Q14. How would you secure APIs exposed through APIM?

Cover:


Hybrid Integration

Q15. How would you integrate an on-premise SAP system with Azure?

Expected architecture:

SAP
 ↓
 On-prem Gateway
 ↓
 Logic Apps
 ↓
 Service Bus
 ↓
 Azure Services


Q16. Explain On-Premises Data Gateway.


Q17. What challenges have you faced in Hybrid Integration?

Possible answers:


2. Architecture & Design Scenario Questions

These are usually the most important.


Q18. Design an integration solution for:

"A retail company needs to integrate Salesforce, SAP and Dynamics 365."

Expected architecture:

They will want to hear:


Q19. Design an event-driven architecture on Azure.

Mention:


Q20. How would you architect a solution processing 10 million messages per day?

Expected:


Q21. What integration patterns have you implemented?

Common patterns:

These patterns come from the well-known Enterprise Integration Patterns book and are often discussed in architecture interviews.


Q22. Synchronous vs Asynchronous Integration?


Q23. API-led Connectivity vs Event-Driven Architecture?


3. Microservices Questions

Q24. How does integration change in a Microservices Architecture?

Expected:


Q25. What is Saga Pattern?

Very common.

Discuss:


Q26. How would you maintain data consistency across microservices?

Cover:


Q27. What is the Outbox Pattern?


4. DevOps & CI/CD Questions

Q28. How do you deploy Logic Apps using Azure DevOps?

Expected:


Q29. What Azure resources should be deployed as Infrastructure as Code?

Expected:

Answer: Everything.


Q30. Bicep vs ARM Templates?


Q31. How do you manage environment-specific configuration?

Discuss:


Q32. What is your branching strategy?

Expected:


5. Security Questions

Q33. How would you secure an integration platform?

Expected:


Q34. What is Managed Identity and why is it preferred?


Q35. How would you secure communication between Azure and On-Prem systems?


Q36. What is Zero Trust Architecture?


6. Monitoring & Support Questions

Q37. How do you monitor Azure Integration Services?

Expected:


Q38. What KPIs would you track?

Examples:


Q39. How would you troubleshoot an intermittent integration issue?


7. Leadership Questions

Capgemini frequently asks these.

Q40. Tell us about a difficult stakeholder you managed.


Q41. How do you review architecture produced by offshore teams?


Q42. How do you ensure quality in distributed delivery teams?

Expected:


Q43. Have you ever challenged a client architecture decision?


Q44. How do you conduct Technical Design Authority reviews?

This is directly mentioned in the JD.


Q45. How do you estimate effort for integration projects?

Cover:


8. Consulting & Pre-Sales Questions

Q46. How would you convince a client to move from BizTalk to Azure Integration Services?

Very likely question.


Q47. How would you prepare a solution proposal?


Q48. What information do you gather during discovery workshops?


Q49. How do you identify integration risks in a programme?


9. GenAI, MCP and Agentic AI Questions

This appears explicitly in the JD, so expect questions.

Q50. How can GenAI improve integration delivery?

Examples:


Q51. What is MCP (Model Context Protocol)?

Expected:


Q52. What is A2A (Agent-to-Agent Communication)?

Expected:


Q53. How would you integrate GenAI with Azure Integration Services?

Example architecture:

Client
 ↓
 APIM
 ↓
 Logic App
 ↓
 Azure OpenAI
 ↓
 Functions
 ↓
 Business Systems


10. Capgemini "Experience-Based" Questions

These almost always come up.

Q54. Describe your most complex integration architecture.


Q55. Describe an integration project that failed and what you learned.


Q56. What architecture decision are you most proud of?


Q57. What would your previous programme manager say about you?


Q58. Why Capgemini?


Q59. Why this Azure Integration Architect role?


Q60. What differentiates you from other architects?


Questions I would prepare especially well

If I were interviewing for this role, I'd focus heavily on:

These are the areas most closely aligned to the job description and are highly likely to be explored by Capgemini interviewers for an Azure Integration Architect position in the UK.

Give me the short answers along with each questions

For an Azure Integration Architect interview, the strongest approach is to answer in a structured format:

Situation → Decision → Reasoning → Benefits → Trade-offs

Below are concise architect-level answers that you can expand during the interview.


1. Why would you choose Logic Apps instead of Azure Functions?

Answer

Logic Apps are best for workflow orchestration and system integration because they provide built-in connectors, visual workflows, retries, tracking, and long-running process support. Azure Functions are better for custom business logic and code execution. In most enterprise integrations, I use Logic Apps for orchestration and Functions for custom processing.


2. Logic Apps Standard vs Consumption?

Answer

Standard

Consumption

Single tenant

Multi-tenant

Fixed pricing

Pay-per-execution

Better performance

Lower cost for low volume

VNET support

Limited networking

Suitable for enterprise workloads

Suitable for smaller workloads

For enterprise projects, I generally recommend Standard.


3. How do you handle failures in Logic Apps?

Answer

I use retry policies, Scope actions, run-after configurations, exception workflows, dead-letter queues, alerts, and Application Insights monitoring.


4. Service Bus Queue vs Topic?

Answer

Queues support point-to-point communication while Topics support publish-subscribe patterns.


5. What is a Dead Letter Queue?

Answer

A Dead Letter Queue stores messages that cannot be processed successfully after maximum retry attempts. It prevents message loss and allows investigation and reprocessing.


6. How do you guarantee message delivery?

Answer

Azure Service Bus provides at-least-once delivery. To avoid duplicates, I implement idempotency, duplicate detection, transactions, retries, and dead-letter handling.


7. What are Service Bus Sessions?

Answer

Sessions ensure related messages are processed in order and by the same consumer. They are useful for order processing and workflow state management.


8. Event Grid vs Service Bus vs Event Hub?

Answer

Service

Use Case

Event Grid

Event notifications

Service Bus

Enterprise messaging

Event Hub

High-volume streaming

Event Grid is event-driven, Service Bus is message-driven, and Event Hub is stream-driven.


9. When would you use Event Grid instead of Service Bus?

Answer

When I need lightweight event notifications such as file uploads, resource changes, or business events with multiple subscribers.


10. When should Azure Functions be used?

Answer

For custom business logic, transformations, validations, calculations, and lightweight APIs.


11. Consumption vs Premium Functions?

Answer

Consumption:

Premium:

Premium is preferred for critical enterprise systems.


12. Why use API Management?

Answer

API Management provides security, rate limiting, monitoring, versioning, developer onboarding, and governance for APIs.


13. API versioning strategies?

Answer

Common approaches:

I generally prefer URI versioning because it is easier for consumers.


14. How do you secure APIs in APIM?

Answer

I use:


15. How would you integrate SAP with Azure?

Answer

SAP
 → On-Premises Gateway
 → Logic Apps
 → Service Bus
 → Downstream Systems

This approach provides reliability, decoupling, and scalability.


16. What is On-Premises Data Gateway?

Answer

A secure bridge that enables Azure services to communicate with systems inside a private corporate network without opening inbound firewall ports.


17. Biggest Hybrid Integration challenges?

Answer

Latency, firewall restrictions, VPN issues, security, legacy protocols, and operational support.


18. Design Salesforce-SAP-Dynamics Integration

Answer

I would use:


19. Design Event-Driven Architecture

Answer

Event Producer
 → Event Grid
 → Service Bus
 → Functions
 → Consumer Systems

This enables loose coupling and scalability.


20. Process 10 Million Messages per Day

Answer

I would use:


21. What Integration Patterns have you used?

Answer


22. Synchronous vs Asynchronous Integration?

Answer

Synchronous:

Asynchronous:


23. API-Led Connectivity vs Event-Driven Architecture?

Answer

API-Led:

Event-Driven:

Many modern solutions use both together.


24. Integration in Microservices?

Answer

I avoid point-to-point integrations and use APIs, messaging, events, and API gateways.


25. What is Saga Pattern?

Answer

Saga manages distributed transactions through a series of local transactions and compensating actions if failures occur.


26. How do you maintain consistency across microservices?

Answer

Using:


27. What is Outbox Pattern?

Answer

Business data and events are written in the same transaction, ensuring reliable event publication.


28. How do you deploy Logic Apps?

Answer

Using Azure DevOps pipelines with Bicep, ARM templates, or Terraform and automated CI/CD processes.


29. What should be deployed using Infrastructure as Code?

Answer

Everything:


30. Bicep vs ARM?

Answer

Bicep is simpler, more readable, easier to maintain, and compiles into ARM templates.


31. Environment-specific configuration?

Answer

I use:


32. Branching Strategy?

Answer

I prefer Trunk-Based Development for modern DevOps environments and GitFlow for large release-driven programmes.


33. How would you secure an integration platform?

Answer

Using:


34. What is Managed Identity?

Answer

Managed Identity allows Azure services to authenticate securely without storing secrets or credentials.


35. Secure Azure to On-Prem Communication?

Answer

VPN, ExpressRoute, private endpoints, gateway services, encryption, and least-privilege access.


36. What is Zero Trust?

Answer

Never trust, always verify. Every user, service, and device must be authenticated and authorized continuously.


37. How do you monitor integrations?

Answer

Using:


38. What KPIs do you track?

Answer


39. Troubleshooting intermittent issues?

Answer

Review logs, correlation IDs, dependencies, retries, network latency, resource utilization, and historical telemetry.


40. Managing difficult stakeholders?

Answer

I focus on understanding concerns, presenting facts, discussing trade-offs, and aligning decisions to business objectives.


41. Managing Offshore Teams?

Answer

Clear architecture standards, regular reviews, documented decisions, shared backlog, and frequent communication.


42. Ensuring Delivery Quality?

Answer

Architecture reviews, coding standards, CI/CD quality gates, automated testing, and governance checkpoints.


43. Challenging Client Decisions?

Answer

Yes. I present risks, alternative options, impact assessments, and recommendations while respecting client ownership.


44. What happens in Technical Design Authority?

Answer

Designs are reviewed against security, scalability, resilience, compliance, cost, and enterprise standards before approval.


45. How do you estimate Integration Projects?

Answer

Based on:


46. Why move from BizTalk to Azure Integration Services?

Answer

Lower infrastructure overhead, cloud scalability, better DevOps support, lower operational costs, and modern architecture patterns.


47. How do you prepare a Solution Proposal?

Answer

Gather requirements, define architecture, identify risks, estimate effort, define roadmap, and articulate business benefits.


48. What do you gather during Discovery?

Answer

Business objectives, integrations, systems landscape, security requirements, data volumes, SLAs, and constraints.


49. Common Integration Risks?

Answer

Legacy systems, unclear ownership, poor data quality, performance bottlenecks, security gaps, and dependency risks.


50. How can GenAI help Integration Delivery?

Answer

Generating mappings, API documentation, test cases, design documents, workflow drafts, and operational runbooks.


51. What is MCP?

Answer

Model Context Protocol is an open standard that allows AI models to securely connect to tools, systems, APIs, and enterprise data sources.


52. What is A2A?

Answer

Agent-to-Agent communication enables multiple AI agents to collaborate, exchange context, and coordinate tasks.


53. How would you integrate Azure OpenAI into enterprise systems?

Answer

APIM
 → Logic Apps
 → Azure OpenAI
 → Functions
 → Business Systems

with governance, monitoring, security, and human approval where required.