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Cloud Platform Fundamentals Questions

Comprehensive understanding of core public cloud services and the primary trade offs when selecting among them across major providers such as Amazon Web Services, Microsoft Azure, and Google Cloud Platform. Candidates should know compute options including virtual machines, managed compute, containers and serverless functions; storage types including object, block and file storage and lifecycle and archival strategies; managed database offerings for relational, non relational, and data warehouse workloads; networking fundamentals including virtual private networks, subnets, routing, load balancing, content delivery networks, and private connectivity; messaging and integration services such as message queues and event streaming; identity and access management and secrets management; monitoring, logging, and observability; autoscaling, elasticity, high availability, and basic disaster recovery patterns; and cost and pricing considerations. The topic also covers the trade offs between managed services and self managed infrastructure in terms of consistency, latency, cost, operational overhead, and durability, and the ability to map common workload requirements to the right service categories.

MediumTechnical
56 practiced
Write a Terraform (HCL) snippet that provisions an S3 bucket with: versioning enabled, default encryption enabled, and a lifecycle rule to transition objects to Glacier Deep Archive after 30 days. Provide resource names and lifecycle configuration. (Just the Terraform HCL resources, assume AWS provider configured.)
EasyTechnical
52 practiced
Compare message queues (e.g., SQS, Azure Queue) and event streaming platforms (e.g., Kafka, Pub/Sub) in terms of ordering, retention, consumer models, and typical use-cases. As a Solutions Architect, recommend one for: (a) a task-processing pipeline with at-least-once delivery and (b) an analytics event stream consumed by multiple teams.
MediumTechnical
42 practiced
Global website needs cache invalidation and origin failover. Design CDN cache invalidation strategies for content updated frequently (e.g., product pages) and propose an origin failover plan if the primary origin becomes unavailable. Consider consistency, performance, and cost.
MediumSystem Design
66 practiced
Design a disaster recovery strategy for a transactional relational database requiring RPO < 1 minute and RTO < 15 minutes across regions. Describe replication method, failover procedure, data consistency considerations, and how to test DR with minimal production impact.
MediumTechnical
45 practiced
Discuss when a multi-cloud strategy makes sense for a client and when it adds unnecessary complexity. Cover vendor lock-in, latency, data gravity, skill sets, cost, and operational overhead. Provide two realistic use-cases where multi-cloud is justified versus two where single-cloud is preferred.

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