1. Question 1

Best managed service for migrating Kubernetes with minimal effort + keep native K8s + reduce ops overhead

• ❌ AWS Fargate with Amazon ECS

• ❌ AWS Fargate with Amazon EKS

• ❌ Amazon ECS

• ✅ Amazon Elastic Kubernetes Service (Amazon EKS)

Explanation:
EKS = fully managed Kubernetes → keeps native K8s features + reduces cluster management overhead.
Fargate is optional, not required for migration.

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2. Question 2

Process events via API with multiple concurrent consumers, cost-effective

• ❌ Amazon SNS fan-out

• ❌ SQS FIFO

• ❌ EventBridge

• ❌ EC2 Spot

• ✅ Amazon SNS with fan-out strategy

Wait—CORRECTION!
For multiple consumers to process concurrently, the best choice is:

• SNS fan-out → sends to SQS queues → each consumer reads independently

Let’s evaluate options:

• SNS fan-out → multiple subscribers → concurrent consumption → cost-effective → BEST

• SQS FIFO → strictly ordered + not parallel (not suitable)

• EventBridge → rule-based events, not optimal for high-throughput multi-consumer concurrency

• EC2 Spot → not message-processing service

✔ Final answer: Amazon SNS with fan-out strategy

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3. Question 3

RDS for relational, DynamoDB for NoSQL

• ✅ True

• ❌ False

Explanation:
RDS supports joins, auto-increment, relational schema.
DynamoDB is NoSQL, key-value, flexible schema.

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4. Question 4 — Choose THREE

Correct statements about DAX

• ✅ DAX reduces operational and application complexity… compatible with DynamoDB API

• ✅ DAX can reduce DynamoDB read capacity usage & cost for read-intensive workloads

• ❌ DAX does not support SSE → Incorrect (DAX supports encryption at rest)

• ✅ DAX is not designed for write-intensive workloads and may add cost for low-read apps

• ❌ DAX does not support encryption in transit → Incorrect (DAX supports TLS encryption)

Correct answers: 1, 2, 4

Explanation:
DAX is a fully managed, in-memory cache, API-compatible with DynamoDB, best for read-heavy workloads.

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5. Question 5

AWS Lambda: runs code without provisioning servers

• ✅ True

• ❌ False

Explanation:
Lambda = fully managed compute: no servers, auto-scale, automatic maintenance, logging, HA.

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🧾 Summary Table

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