Cloud Architect Interview Questions

1.1Cloud-native design principles - scalability, resilience, elasticity, and operational excellence

1.2The Well-Architected Framework - security, reliability, performance, cost, and sustainability pillars

1.3Cloud strategy - public, private, hybrid, and multi-cloud trade-offs and how to advise the business

1.4The architect role - technical authority, governance, and working with delivery teams without blocking them

2.1Compute options - VMs, containers, serverless, and choosing the right model for each workload

2.2Serverless architecture - functions, event-driven design, cold starts, and the operational model

2.3Auto-scaling - horizontal and vertical scaling, scaling policies, and designing for unpredictable load

2.4High-performance computing - specialised compute and when standard cloud compute is not enough

3.1Cloud networking fundamentals - VPCs, subnets, route tables, security groups, and network ACLs

3.2Hybrid connectivity - VPN, Direct Connect, ExpressRoute, and connecting on-premises to cloud

3.3Content delivery and edge - CDN architecture, edge computing, and reducing latency for global users

3.4Zero-trust networking - micro-segmentation, identity-based access, and securing east-west traffic

4.1Storage options - object, block, file, and archival storage and the right choice for each use case

4.2Data lake and data warehouse architecture - designing a modern analytics platform on cloud

4.3Database selection - relational, NoSQL, in-memory, and time-series databases and when each excels

4.4Data residency, sovereignty, and replication - architecture decisions driven by regulatory requirements

5.1Identity and access management - IAM design, least privilege, service accounts, and federated identity

5.2Data protection - encryption at rest and in transit, key management, and secrets handling

5.3Security architecture patterns - defence in depth, zero trust, and secure by design

5.4Compliance and governance - regulatory requirements and architecting systems to meet them

6.1Availability design - RTO, RPO, and designing multi-region architectures for high availability

6.2Disaster recovery strategies - backup and restore, pilot light, warm standby, and active-active

6.3Chaos engineering - testing resilience assumptions and validating the architecture

6.4Business continuity planning - the architect role in ensuring the business can survive failures

7.1Cloud cost management - understanding the bill, tagging strategy, and cost allocation

7.2Cost optimisation patterns - reserved instances, spot instances, right-sizing, and storage tiering

7.3FinOps - the practice of financial accountability for cloud spend and the architect role in it

7.4Cost-aware architecture - designing for cost efficiency from the start rather than optimising after

8.1Migration strategies - rehost, replatform, refactor, repurchase, and retire and when to apply each

8.2Application modernisation - moving from monolith to microservices or serverless on cloud

8.3Data migration - moving large datasets to cloud safely with minimal downtime and data integrity

8.4Migration governance - assessing, planning, sequencing, and managing risk across a migration programme

9.1Architecture review boards - running them effectively and making them useful rather than a bottleneck

9.2Architecture decision records - documenting decisions, rationale, and consequences for future reference

9.3Technical standards - setting cloud standards, guardrails, and reference architectures for delivery teams

9.4Communicating architecture - diagrams, presentations, and making complex designs understandable

10.1Architecture design questions - designing a scalable, secure cloud solution under interview conditions

10.2Technical depth questions - cloud services, networking, security, and cost optimisation

10.3Stakeholder and governance questions - how you manage standards, influence without authority, and handle architectural disagreements

10.4Salary negotiation for architect roles, evaluating the cloud maturity of an organisation, and questions that reveal the real engineering culture