What is cloud computing in AWS - Practice Questions & Exercises

Challenge - 5 Problems

🧠 Conceptual

intermediate

What is the main benefit of cloud computing?

Imagine you want to store your photos and access them from anywhere. Which of these best describes the main benefit of cloud computing?

A You store photos on a service online and can access them anytime from any device.

B You buy a big computer and keep it at home to store your photos.

C You print your photos and keep them in an album.

D You send photos by mail to your friends.

💡 Hint

Think about how you can access your photos from different places without carrying a device.

Cloud computing lets you use online services to store and access data anytime, anywhere, without needing your own hardware.

❓ Architecture

intermediate

Which AWS service is best for storing files in the cloud?

You want to save documents and photos in the cloud so you can access them anytime. Which AWS service should you use?

A Amazon EC2

B AWS Lambda

C Amazon RDS

D Amazon S3

💡 Hint

Think about a service designed to store files and objects.

Amazon S3 is a service for storing and retrieving any amount of data, like files and photos, from anywhere.

❓ security

advanced

What happens if you do not secure your AWS S3 bucket properly?

You create an S3 bucket to store private files but forget to set permissions. What is the likely result?

A Only you can access the files, no one else.

B AWS automatically deletes the files after 24 hours.

C Anyone on the internet can access your files.

D The files become encrypted and inaccessible.

💡 Hint

Think about what happens if you leave a door open in a public place.

If permissions are not set correctly, S3 buckets can be publicly accessible, exposing private data.

❓ service_behavior

advanced

What happens when you stop an Amazon EC2 instance?

You have a virtual server running on EC2. What happens to the server and your data when you stop it?

A The server shuts down but data on the attached storage remains intact.

B The server and all data are deleted permanently.

C The server continues running but does not accept connections.

D The server is paused and resumes exactly where it left off.

💡 Hint

Think about turning off a computer but keeping the hard drive safe.

Stopping an EC2 instance shuts down the virtual server but preserves data on attached storage like EBS volumes.

✅ Best Practice

expert

Which practice improves security for AWS IAM users?

You manage users in AWS IAM. Which practice best improves security?

A Share passwords among users to simplify access.

B Use multi-factor authentication (MFA) for all users.

C Give all users administrator access by default.

D Disable password expiration to avoid lockouts.

💡 Hint

Think about adding an extra lock on your door besides the key.

Multi-factor authentication adds a second step to verify identity, greatly improving security.