MOCK Q&A FLASHCARDS

🧠 MOCK Q&A FLASHCARDS

🔹 FLASHCARD 1

Q: What is your approach to breaking a monolith into microservices?

A:

• Start with domain modeling using DDD.

• Identify bounded contexts.

• Apply Strangler Fig Pattern for incremental decomposition.

• Build services with Spring Boot, containerize with Docker, deploy on AKS.

• Implement API Gateway, service mesh, and CI/CD pipelines via Azure DevOps.

• Ensure observability, rollback strategies, and security controls.

  
  

🔹 FLASHCARD 2

Q: How do you ensure scalability and performance in a microservices architecture?

A:

• Stateless design with horizontal pod scaling in AKS.

• Use Kafka for asynchronous processing.

• Implement caching with Redis.

• DB: Partitioning, indexing, and query optimization (PostgreSQL).

• Set up autoscaling and use Azure Monitor for proactive scaling.

  
  

🔹 FLASHCARD 3

Q: How do you manage security across distributed microservices?

A:

• OAuth2 and JWT with Azure AD.

• API Gateway enforces throttling, rate limits, and IP whitelisting.

• TLS everywhere, mTLS within Istio service mesh.

• Secrets via Azure Key Vault.

• Periodic vulnerability scans and dependency checks.

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🔹 FLASHCARD 4

Q: Describe your CI/CD pipeline in Azure.

A:

• Azure Repos → Azure Pipelines → AKS Deployment.

• Steps: Code → Static Analysis (SonarQube) → Unit Tests → Build → Scan (Snyk) → Docker Push → Helm Deploy to AKS.

• Approval gates and rollback setup.

• IaC via Terraform for infrastructure consistency.

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🔹 FLASHCARD 5

Q: What would you do if a service fails under load?

A:

• Check logs (App Insights) and metrics (Azure Monitor).

• Review thread dumps, GC logs.

• Optimize DB access, offload heavy logic via async Kafka.

• Add circuit breakers and rate limiting.

• Scale horizontally and review autoscaler thresholds.

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🔹 FLASHCARD 6

Q: How do you enforce consistency across development teams?

A:

• Define and document architecture blueprints and coding standards.

• Use ADRs and starter code templates.

• Central governance via Architecture Review Board.

• Automated CI rules for linting, API schema validation.

  
  

🔹 FLASHCARD 7

Q: How do you align microservices strategy with business goals?

A:

• Use Capability Maps to connect tech to business domains.

• Prioritize features based on value streams.

• Present architecture options with cost-benefit impact.

• Work closely with CTO and product owners to align roadmap.

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🔹 FLASHCARD 8

Q: What’s your data strategy for a high-throughput mutual fund system?

A:

• Normalize transactional data with PostgreSQL.

• Use read replicas for scale.

• Leverage event sourcing for audit trails.

• Kafka for real-time ingestion and stream processing.

• Partition large datasets by fund/region/time.

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🔹 FLASHCARD 9

Q: How do you ensure SEBI and AMFI compliance in your architecture?

A:

• Audit logs and immutable event storage.

• Data encryption, retention, and masking policies.

• Access control with RBAC via Azure AD.

• Automate checks via Azure Policy and Defender for Cloud.

• Regular security assessments and internal audits.

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🔹 FLASHCARD 10

Q: How do you handle resistance to change during modernization?

A:

• Educate stakeholders with PoCs and success stories.

• Start with low-risk services to build momentum.

• Get business buy-in through value demos.

• Use KPIs to track impact (faster releases, fewer bugs).

• Offer training and support to developers.