Cloud computing basics in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the type of cloud service that provides virtual servers.

Intro to Computing

cloud_service = "[1]"
print(cloud_service)

Drag options to blanks, or click blank then click option'

ADaaS

BSaaS

CPaaS

DIaaS

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing SaaS with IaaS

Choosing PaaS which is for platforms, not servers

IaaS stands for Infrastructure as a Service, which provides virtual servers and storage over the internet.

2fill in blank

medium

Complete the sentence to describe the cloud deployment model where resources are shared publicly.

Intro to Computing

The [1] cloud is available to the general public over the internet.

Drag options to blanks, or click blank then click option'

Apublic

Bhybrid

Cprivate

Dcommunity

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing private cloud instead of public

Confusing hybrid cloud with public cloud

The public cloud is accessible by anyone over the internet and resources are shared among users.

3fill in blank

hard

Fix the error in the sentence describing cloud benefits by filling the blank.

Intro to Computing

One key benefit of cloud computing is [1] scalability, which means resources can grow or shrink as needed.

Drag options to blanks, or click blank then click option'

Alimited

Bmanual

Cdynamic

Dfixed

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing fixed scalability which is opposite of cloud benefits

Confusing manual with dynamic

Dynamic scalability means cloud resources can automatically adjust based on demand.

4fill in blank

hard

Fill both blanks to complete the cloud service model and its example.

Intro to Computing

In [1], users manage applications while the provider manages the [2].

Drag options to blanks, or click blank then click option'

APaaS

Bnetwork

CIaaS

Dhardware

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing IaaS and PaaS roles

Confusing network with hardware

PaaS (Platform as a Service) lets users focus on applications while the provider manages the underlying hardware.

5fill in blank

hard

Fill all three blanks to complete the cloud computing definition.

Intro to Computing

Cloud computing is a [1] model that delivers [2] services over the [3].

Drag options to blanks, or click blank then click option'

Acomputing

Binternet

Con-demand

Dstorage

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing storage instead of on-demand for services

Mixing internet and computing positions

Cloud computing is a computing model that delivers on-demand services over the internet.

Practice

1. What is the main idea of cloud computing?

easy

A. Using software without internet connection

B. Buying physical computers for your home

C. Storing files only on your personal computer

D. Using computers and storage over the internet

Solution

1. Step 1: Understand the definition of cloud computing

   Cloud computing means using computers and storage resources that are accessed via the internet, not locally.

2. Step 2: Compare options with the definition

   Only Using computers and storage over the internet describes using computers and storage over the internet, which matches cloud computing.

3. Final Answer:

   Using computers and storage over the internet -> Option D

4. Quick Check:

   Cloud computing = Using internet resources [OK]

Hint: Cloud means internet-based computing, not local [OK]

Common Mistakes:

• Thinking cloud means physical computers at home
• Confusing cloud with offline software
• Assuming cloud is only about storage

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

easy

A. A program installed only on your computer

B. A file saved only on a USB drive

C. A service accessed through the internet

D. A computer without internet connection

Solution

1. Step 1: Identify what a cloud service is

   A cloud service is a program or resource you use through the internet, not just on your device.

2. Step 2: Match options with cloud service definition

   A service accessed through the internet correctly states it is accessed through the internet, unlike the others.

3. Final Answer:

   A service accessed through the internet -> Option C

4. Quick Check:

   Cloud service = Internet access [OK]

Hint: Cloud services always need internet access [OK]

Common Mistakes:

• Choosing local-only programs as cloud services
• Confusing USB storage with cloud storage
• Ignoring the internet requirement

3. Look at this simple flowchart for accessing a cloud file:



What happens if the device is not connected to the internet?

medium

A. The file cannot be accessed

B. The device connects automatically to cloud

C. The file opens from cloud storage

D. The file is saved locally

Solution

1. Step 1: Follow the flowchart steps

   The flowchart shows that after opening the device, connecting to the internet is required before accessing cloud storage.

2. Step 2: Analyze what happens without internet

   If there is no internet connection, the step to access cloud storage cannot happen, so the file cannot be accessed.

3. Final Answer:

   The file cannot be accessed -> Option A

4. Quick Check:

   No internet = No cloud access [OK]

Hint: No internet means no cloud file access [OK]

Common Mistakes:

• Assuming files open without internet
• Thinking device auto-connects to cloud
• Confusing local and cloud storage

4. A user tries to upload a file to cloud storage but gets an error. Which of these is the most likely cause?

medium

A. The internet connection is lost during upload

B. The file is already saved on the cloud

C. The device has too much free space

D. The cloud storage is offline but device is online

Solution

1. Step 1: Understand upload process to cloud

   Uploading requires a stable internet connection to send the file to cloud storage.

2. Step 2: Identify error cause from options

   If the internet connection is lost during upload, the process fails causing an error. Other options are less likely or incorrect.

3. Final Answer:

   The internet connection is lost during upload -> Option A

4. Quick Check:

   Upload needs stable internet [OK]

Hint: Upload errors often mean internet issues [OK]

Common Mistakes:

• Thinking file duplication causes upload error
• Assuming too much free space causes errors
• Ignoring internet connection stability

5. A company wants to use cloud computing to save costs and improve access. Which combination of cloud features should they choose?

1. Pay only for what you use
2. Access files from any device with internet
3. Install software only on local computers
4. Rent servers instead of buying hardware

Choose the best combination.

hard

A. 2 and 3 only

B. 1, 2, and 4 only

C. 1 and 3 only

D. All four features

Solution

1. Step 1: Identify cloud computing features

   Cloud computing includes paying for usage, accessing files anywhere via internet, and renting servers instead of buying hardware.

2. Step 2: Evaluate each feature

   Feature 3 (installing software only locally) is not a cloud feature because cloud software runs online or on rented servers.

3. Step 3: Select correct combination

   Features 1, 2, and 4 match cloud computing benefits; feature 3 does not.

4. Final Answer:

   1, 2, and 4 only -> Option B

5. Quick Check:

   Cloud = pay-as-you-go + internet access + rented servers [OK]

Hint: Cloud avoids local-only software installs [OK]

Common Mistakes:

• Including local-only software as cloud feature
• Ignoring pay-as-you-go pricing
• Confusing renting servers with buying hardware