Azure CLI and Cloud Shell - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ service_behavior

intermediate

Understanding Azure Cloud Shell Storage

When you start Azure Cloud Shell for the first time, it asks to create a storage account. What is the main reason for this storage?

A To store your shell session files and persist data across sessions

B To host your web applications directly from Cloud Shell

C To backup your Azure subscription configurations automatically

D To increase the speed of Azure CLI commands by caching them

💡 Hint

Think about what happens when you close and reopen Cloud Shell.

Azure Cloud Shell uses a storage account to save your files and data so that they are available every time you open Cloud Shell. This storage is mounted as a file share.

❓ Configuration

intermediate

Correct Azure CLI Command to List Resource Groups

Which Azure CLI command correctly lists all resource groups in your subscription?

A az group list

B az resource list-groups

C az list resource-groups

D az groups show

💡 Hint

Check the Azure CLI command structure for resource groups.

The correct command to list resource groups is az group list. Other options are invalid commands or incorrect syntax.

❓ Architecture

advanced

Choosing the Best Environment for Azure CLI Automation

You want to automate Azure resource deployment using Azure CLI scripts. Which environment is best suited for running these scripts securely and with minimal setup?

A Azure Portal's resource explorer, because it allows direct script execution

B Local machine terminal, because it requires no internet connection

C Azure Cloud Shell, because it is pre-configured with Azure CLI and has secure access to your subscription

D Azure Storage Explorer, because it manages storage accounts and runs CLI scripts

💡 Hint

Consider ease of setup and security for running Azure CLI scripts.

Azure Cloud Shell is a browser-accessible shell environment with Azure CLI pre-installed and authenticated, making it ideal for automation scripts without local setup.

❓ security

advanced

Azure CLI Authentication Methods in Cloud Shell

Which authentication method does Azure Cloud Shell use by default to run Azure CLI commands securely without prompting for credentials?

A Stored username and password in Cloud Shell settings

B SSH key pair authentication

C OAuth token cached in browser cookies

D Managed Identity assigned to the Cloud Shell environment

💡 Hint

Think about how Azure services authenticate without user input.

Azure Cloud Shell uses a managed identity to authenticate Azure CLI commands securely without requiring manual login.

✅ Best Practice

expert

Optimizing Azure CLI Script Execution in Cloud Shell

You have a complex Azure CLI script that creates multiple resources. To optimize execution time and avoid hitting rate limits, which practice should you follow?

A Use Azure CLI interactive mode to manually approve each resource creation

B Use <code>az group deployment create</code> with an ARM template instead of multiple individual CLI commands

C Run each CLI command sequentially with a 10-second delay between commands

D Run the script multiple times in parallel Cloud Shell sessions to speed up deployment

💡 Hint

Consider how to deploy multiple resources efficiently and reliably.

Using ARM templates with az group deployment create batches resource creation in one deployment, reducing API calls and improving reliability.

Practice

1. What is the primary purpose of Azure Cloud Shell?

easy

A. To store files permanently in Azure storage

B. To create virtual machines automatically without commands

C. To replace the Azure Portal with a graphical interface

D. To provide a ready-to-use command line interface in the browser with Azure CLI pre-installed

Solution

1. Step 1: Understand Cloud Shell functionality

   Cloud Shell is a browser-based shell environment with Azure CLI and other tools pre-installed, ready for use without setup.

2. Step 2: Compare options

   Options B, C, and D describe other Azure features but not Cloud Shell's main purpose.

3. Final Answer:

   To provide a ready-to-use command line interface in the browser with Azure CLI pre-installed -> Option D

4. Quick Check:

   Cloud Shell = browser CLI with Azure CLI [OK]

Hint: Cloud Shell = browser command line ready to use [OK]

Common Mistakes:

• Thinking Cloud Shell is a GUI tool
• Confusing Cloud Shell with Azure Portal
• Assuming Cloud Shell stores files permanently

2. Which command correctly logs you into Azure CLI in Cloud Shell?

easy

A. az connect

B. az login

C. az start

D. az authenticate

Solution

1. Step 1: Identify the login command in Azure CLI

   The command to log in to Azure CLI is az login.

2. Step 2: Verify other options

   Commands like az connect, az start, and az authenticate do not exist or are incorrect for login.

3. Final Answer:

   az login -> Option B

4. Quick Check:

   Login command = az login [OK]

Hint: Login always uses 'az login' command [OK]

Common Mistakes:

• Using 'az connect' instead of 'az login'
• Trying 'az start' to login
• Assuming 'az authenticate' is valid

3. What will the following command do?

az group create --name MyResourceGroup --location eastus

medium

A. Create a new resource group named MyResourceGroup in the East US region

B. Delete the resource group named MyResourceGroup

C. List all resource groups in East US

D. Create a virtual machine named MyResourceGroup

Solution

1. Step 1: Understand the command structure

   az group create creates a resource group. The parameters specify the name and location.

2. Step 2: Interpret parameters

   --name sets the resource group name to 'MyResourceGroup', --location sets the region to 'eastus'.

3. Final Answer:

   Create a new resource group named MyResourceGroup in the East US region -> Option A

4. Quick Check:

   az group create = create resource group [OK]

Hint: az group create = make new resource group [OK]

Common Mistakes:

• Confusing resource group creation with VM creation
• Thinking it deletes or lists groups
• Misunderstanding --location parameter

4. You run this command in Cloud Shell:

az vm create --resource-group MyGroup --name MyVM --image UbuntuLTS

But get an error saying the resource group does not exist. What should you do?

medium

A. Create the resource group first using az group create

B. Change the VM name to match an existing resource group

C. Run az vm delete before creating the VM

D. Use az vm list to create the resource group

Solution

1. Step 1: Understand the error cause

   The error says the resource group 'MyGroup' does not exist, so the VM cannot be created there.

2. Step 2: Fix by creating the resource group

   You must create the resource group first with az group create --name MyGroup --location eastus (or another location).

3. Final Answer:

   Create the resource group first using az group create -> Option A

4. Quick Check:

   Resource group must exist before VM creation [OK]

Hint: Create resource group before VM creation [OK]

Common Mistakes:

• Trying to delete VM before creating resource group
• Changing VM name instead of resource group
• Using az vm list to create groups

5. You want to automate creating a VM and then immediately open its public IP in your browser using Azure CLI in Cloud Shell. Which sequence of commands is correct?

hard

A. az vm create --resource-group RG --name VM1 --image UbuntuLTS && az vm get-ip VM1 | open-browser

B. az vm create --resource-group RG --name VM1 --image UbuntuLTS; az vm list-ip --name VM1 | open

C. az vm create --resource-group RG --name VM1 --image UbuntuLTS && az vm show --resource-group RG --name VM1 --query publicIpAddress -o tsv | xargs xdg-open

D. az vm create --resource-group RG --name VM1 --image UbuntuLTS && az vm show --resource-group RG --name VM1 --query publicIpAddress -o tsv | xargs open

Solution

1. Step 1: Create VM with az vm create

   This command creates the VM in the specified resource group with the Ubuntu image.

2. Step 2: Retrieve public IP and open in browser

   az vm show --query publicIpAddress -o tsv extracts the IP. Piping to xdg-open opens it in the default browser on Linux-based Cloud Shell.

3. Step 3: Analyze options

   Options B and C use invalid commands or syntax. az vm create --resource-group RG --name VM1 --image UbuntuLTS && az vm show --resource-group RG --name VM1 --query publicIpAddress -o tsv | xargs open uses open which is MacOS-specific, not Cloud Shell.

4. Final Answer:

   az vm create ... && az vm show ... | xargs xdg-open -> Option C

5. Quick Check:

   Use az vm show + xdg-open in Cloud Shell [OK]

Hint: Use az vm show + xdg-open to open IP in Cloud Shell [OK]

Common Mistakes:

• Using MacOS 'open' command in Cloud Shell
• Using non-existent commands like az vm get-ip
• Not piping IP correctly to open command