What is a primary benefit of decoupling application components with a queue?

It eliminates the need for security groups

It guarantees that messages are processed in real time

It reduces the need for monitoring

It allows components to fail independently without affecting the entire system

A company has an application that runs on a fleet of EC2 instances. The application has a steady baseline load but experiences unpredictable spikes. The company wants to reduce operational overhead and cost. The application is stateless and can be refactored to be event-driven. What is the best approach?

Use a larger EC2 instance to handle the spikes.

Keep the application on EC2 and use Auto Scaling with a target tracking policy.

Move the application to a different AWS Region.

Refactor the application to use AWS Lambda and Amazon API Gateway.

What is a key benefit of using serverless architectures?

Reduced operational overhead because AWS manages the servers

Elimination of all security concerns

Which architectural approach is an example of fault isolation?

Storing all data in one S3 bucket

Running all application components on a single EC2 instance

Using a single database for all application functions

Deploying microservices that each run independently

A company runs a critical application on EC2 instances in a single Availability Zone. The company's compliance team requires that the application remain available even if an entire data center fails. What should the company do to meet this requirement?

Deploy the application across multiple Availability Zones.

Take regular snapshots of the EBS volumes.

Configure the instances to automatically restart if they fail.

Use a larger instance type for the application.

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Domain 1Objective 2

Task Statement 1.2: Identify Design Principles of the AWS Cloud. CLF-C02 Practice Questions (Page 5)

Part of the Cloud Concepts domain, which makes up ~23% of our current practice bank. AWS does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 2–4 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

8concepts

Questions 21–25

21foundation · easy
What is a primary benefit of decoupling application components with a queue?
Select an answer first
22expert · hard
A company has an application that runs on a fleet of EC2 instances. The application has a steady baseline load but experiences unpredictable spikes. The company wants to reduce operational overhead and cost. The application is stateless and can be refactored to be event-driven. What is the best approach?
Select an answer first
23foundation · easy
What is a key benefit of using serverless architectures?
Select an answer first
24foundation · easy
Which architectural approach is an example of fault isolation?
Select an answer first
25application · medium
A company runs a critical application on EC2 instances in a single Availability Zone. The company's compliance team requires that the application remain available even if an entire data center fails. What should the company do to meet this requirement?
Select an answer first

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