What is cloud computing in AWS - Hands-On Activity

What is cloud computing

📖 Scenario: Imagine you want to save your photos and videos but do not want to keep them only on your phone or computer. You want to use a service that stores them safely and lets you access them anytime from any device. This is what cloud computing helps with.

🎯 Goal: Learn the basic idea of cloud computing by creating a simple list of cloud services and then adding a description to each service step by step.

📋 What You'll Learn

Create a list of cloud services with exact names

Add a configuration variable for the main cloud provider

Create a dictionary mapping each service to its description

Add a final summary string describing cloud computing

💡 Why This Matters

🌍 Real World

Cloud computing is used by companies to run websites, store data, and connect users worldwide without buying physical servers.

💼 Career

Understanding cloud computing basics is essential for roles in IT, software development, and system administration.

1

Create a list of cloud services

Create a list called cloud_services with these exact values: 'Compute', 'Storage', 'Database', 'Networking'

AWS

# Create a list called cloud_services with the given service names
# Your code here

Hint

Use square brackets to create a list and separate items with commas.

2

Add the main cloud provider

Create a variable called main_provider and set it to the string 'AWS'

AWS

cloud_services = ['Compute', 'Storage', 'Database', 'Networking']
# Create a variable main_provider and set it to 'AWS'
# Your code here

Hint

Use an equals sign to assign the string 'AWS' to the variable main_provider.

3

Map services to descriptions

Create a dictionary called service_descriptions that maps each service in cloud_services to these exact descriptions: 'Compute': 'Run virtual servers', 'Storage': 'Save files and data', 'Database': 'Organize data', 'Networking': 'Connect resources'

AWS

cloud_services = ['Compute', 'Storage', 'Database', 'Networking']
main_provider = 'AWS'
# Create a dictionary service_descriptions mapping each service to its description
# Your code here

Hint

Use curly braces to create a dictionary and colons to map keys to values.

4

Add a summary of cloud computing

Create a variable called cloud_summary and set it to this exact string: 'Cloud computing means using internet services like AWS to run programs, store data, and connect resources without owning physical servers.'

AWS

cloud_services = ['Compute', 'Storage', 'Database', 'Networking']
main_provider = 'AWS'
service_descriptions = {
    'Compute': 'Run virtual servers',
    'Storage': 'Save files and data',
    'Database': 'Organize data',
    'Networking': 'Connect resources'
}
# Create a variable cloud_summary with the given explanation string
# Your code here

Hint

Assign the exact string to the variable cloud_summary using quotes.

Practice

1. What is the main benefit of cloud computing compared to owning physical computers?

easy

A. You can use computing resources over the internet without buying hardware.

B. You get faster internet speeds at home.

C. You have to manage all the physical servers yourself.

D. You pay a fixed monthly fee regardless of usage.

Solution

1. Step 1: Understand cloud computing basics

   Cloud computing means using computers and storage through the internet instead of owning them physically.

2. Step 2: Compare options

   You can use computing resources over the internet without buying hardware. correctly states the main benefit: no need to buy hardware, just use resources online. Other options are incorrect because they mention unrelated or wrong facts.

3. Final Answer:

   You can use computing resources over the internet without buying hardware. -> Option A

4. Quick Check:

   Cloud computing = use internet resources [OK]

Hint: Cloud means using internet computers, not your own [OK]

Common Mistakes:

• Thinking cloud means faster home internet
• Believing you must manage physical servers
• Assuming fixed cost regardless of use

2. Which of the following is the correct way to describe cloud computing?

easy

A. Renting computing power and storage over the internet.

B. Connecting to a local printer.

C. Using a USB drive to store files.

D. Buying and installing software on your local computer.

Solution

1. Step 1: Define cloud computing

   Cloud computing means renting or using computing resources like servers and storage through the internet.

2. Step 2: Evaluate options

   Renting computing power and storage over the internet. matches this definition. Options A, B, and C describe local or unrelated actions, not cloud computing.

3. Final Answer:

   Renting computing power and storage over the internet. -> Option A

4. Quick Check:

   Cloud = rent internet resources [OK]

Hint: Cloud means renting, not buying software locally [OK]

Common Mistakes:

• Confusing cloud with local software installation
• Thinking cloud is just external storage devices
• Mixing cloud with local hardware connections

3. If a company uses cloud computing, what happens when they need more storage suddenly?

medium

A. They must buy new physical hard drives and install them.

B. They can quickly add more storage online without delay.

C. They have to wait weeks for new hardware delivery.

D. They lose all their existing data.

Solution

1. Step 1: Understand cloud flexibility

   Cloud computing allows users to increase or decrease resources like storage instantly through the internet.

2. Step 2: Analyze options

   They can quickly add more storage online without delay. correctly states this quick scalability. Options A and B describe physical hardware delays, and D is incorrect as data is not lost.

3. Final Answer:

   They can quickly add more storage online without delay. -> Option B

4. Quick Check:

   Cloud scales storage fast = They can quickly add more storage online without delay. [OK]

Hint: Cloud scales resources instantly online [OK]

Common Mistakes:

• Assuming physical hardware is needed for scaling
• Thinking scaling takes weeks
• Believing data is lost when scaling

4. A user tries to access cloud storage but gets an error. Which is the most likely cause?

medium

A. The cloud storage is a physical device unplugged.

B. The cloud provider deleted all data automatically.

C. The user's computer is turned off.

D. The user's internet connection is down.

Solution

1. Step 1: Identify cloud access requirements

   Accessing cloud storage requires a working internet connection.

2. Step 2: Evaluate error causes

   The user's internet connection is down. is the most common cause: no internet means no cloud access. Options B, C, and D are unlikely or incorrect because cloud data is not deleted automatically, and cloud storage is not a physical device on the user's side.

3. Final Answer:

   The user's internet connection is down. -> Option D

4. Quick Check:

   No internet = no cloud access [OK]

Hint: Check internet first if cloud access fails [OK]

Common Mistakes:

• Assuming cloud deletes data randomly
• Thinking local computer state affects cloud data
• Confusing cloud storage with local devices

5. A startup wants to save money by using cloud computing. Which approach best fits this goal?

hard

A. Buy many servers upfront to avoid monthly fees.

B. Hire staff to manage physical data centers.

C. Use cloud services and pay only for what they use.

D. Avoid cloud and use only local computers.

Solution

1. Step 1: Understand cloud cost model

   Cloud computing charges based on actual usage, so you pay only for what you use, saving money especially for startups.

2. Step 2: Compare options for cost saving

   Use cloud services and pay only for what they use. matches this pay-as-you-go model. Options A, C, and D involve high upfront costs or management overhead, not cost-saving.

3. Final Answer:

   Use cloud services and pay only for what they use. -> Option C

4. Quick Check:

   Cloud pay-per-use = cost saving [OK]

Hint: Cloud pay-as-you-go saves money for startups [OK]

Common Mistakes:

• Thinking buying servers upfront is cheaper
• Ignoring management costs of physical data centers
• Avoiding cloud due to misunderstanding costs