Mixed Scenario Selection Quiz

Learning outcomes

By the end of this lesson, the learner can:

1. Choose the strongest first-fit AWS service or pattern for a mixed scenario.
2. Explain why one service fits better than a similar-looking alternative.
3. Reason across compute, storage, database, analytics, container, and deployment questions.
4. Build faster service selection instincts grounded in AWS's documented service roles. EC2 is the virtual-server model, ECS services run and maintain tasks, RDS is the managed relational service, DynamoDB is a serverless NoSQL database, Redshift is the data warehouse, EMR is the big-data processing platform, Neptune is the graph database, and CloudFormation manages infrastructure as code. (AWS Documentation)

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Module 5.4 review snapshot

This module has been about choosing services by problem shape instead of by name similarity.

A few of the most important boundaries are:

• EC2 vs ECS: server model vs containerized task/service model. (AWS Documentation)
• RDS vs DynamoDB: relational vs NoSQL. (AWS Documentation)
• Redshift vs EMR: SQL warehouse analytics vs big-data processing frameworks. (AWS Documentation)
• Cloud deployment vs hybrid deployment: fully in cloud vs connected with non-cloud resources such as on-premises systems. (AWS Documentation)
• CloudFormation vs manual console setup: repeatable infrastructure as code vs manually building resources. (AWS Documentation)

A simple summary is:

Pick the service by the workload's shape, not by which names sound related.

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Warm-up: Classify by Service Category

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Mixed scenario selection quiz

Reflection question

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Answer key

A1: B. Lightsail. Lightsail is the simpler bundled starting point for websites and web applications, whereas EC2 is the lower-level virtual-server model. (AWS Documentation)

A2: B. ECS service. AWS says ECS services run and maintain a specified number of task instances in a cluster and can optionally run behind a load balancer. (AWS Documentation)

A3: B. RDS. AWS defines RDS as the managed relational database service. (AWS Documentation)

A4: C. DynamoDB. AWS defines DynamoDB as a serverless, fully managed, distributed NoSQL database. (AWS Documentation)

A5: B. EMR. AWS says EMR is the managed cluster platform for big-data frameworks such as Spark and Hadoop. (AWS Documentation)

A6: C. Redshift. AWS says Redshift is a fully managed data warehouse for analytics. (AWS Documentation)

A7: A. Neptune. AWS says Neptune is the graph database for highly connected datasets and explicitly lists fraud detection as a use case. (AWS Documentation)

A8: B. CloudFormation. AWS says CloudFormation manages related resources as stacks from YAML or JSON templates. (AWS Documentation)

A9: B. Hybrid deployment. AWS defines hybrid deployment as connecting cloud-based resources with existing resources not located in the cloud, commonly on-premises infrastructure. (AWS Documentation)

A10: B. EC2. AWS defines an EC2 instance as a virtual server in the AWS Cloud. (AWS Documentation)

A11: B. ECS. AWS says an ECS service runs and maintains a specified number of task instances simultaneously in a cluster. (AWS Documentation)

A12: B. EMR + Redshift. EMR is for big-data processing frameworks, and Redshift is for SQL warehouse analytics on curated data. (AWS Documentation)

A13: C. Cloud deployment. AWS says a cloud-based application is fully deployed in the cloud and all parts run there. (AWS Documentation)

A14: B. EC2 is the virtual-server model, while ECS is the container/task/service model. AWS explicitly defines EC2 instances as virtual servers and ECS services as task-maintaining services in clusters. (AWS Documentation)

A15: A. Redshift is the warehouse analytics service, while EMR is the big-data processing platform for frameworks such as Spark and Hadoop. (AWS Documentation)

A16: A. CloudTrail. CloudTrail is the service that records actions as events in an AWS account.

A17: B. Config. AWS Config is the service for configuration state and history over time.

A18: A. GuardDuty. GuardDuty is AWS's threat-detection service for suspicious or malicious activity.

A19: B. Inspector. Inspector scans EC2, ECR images, and Lambda for vulnerabilities and unintended exposure.

A20: Pick the service based on the workload's shape, not just the similarity of the names.

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Module 5.4 wrap-up

At this point, a learner should be able to:

• separate EC2 from ECS
• separate RDS from DynamoDB
• separate Redshift from EMR
• separate CloudTrail from Config
• choose Neptune for graph-shaped problems
• choose CloudFormation when repeatable infrastructure is the real requirement

Those service boundaries are exactly how AWS documents these services. (AWS Documentation)

Next lesson

Unit 5, Module 5.5: Final Mixed Review Lesson 5.16: Final Mixed Practice Quiz