Storage commands in Azure - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to list all storage accounts in your Azure subscription.

Azure

az storage account [1]

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

Alist

Bcreate

Cdelete

Dshow

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'create' instead of 'list' will try to make a new account.

Using 'show' expects a specific account name, not a list.

The list command shows all storage accounts in your subscription.

2fill in blank

medium

Complete the code to create a new blob container named 'mycontainer' in a storage account.

Azure

az storage container [1] --name mycontainer --account-name mystorageaccount

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

Alist

Bcreate

Cshow

Ddelete

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'list' will show containers but not create one.

Using 'delete' will remove a container, not create it.

The create command makes a new blob container inside the storage account.

3fill in blank

hard

Fix the error in the command to upload a file named 'data.txt' to a blob container.

Azure

az storage blob upload --container-name mycontainer --file data.txt --name [1] --account-name mystorageaccount

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

Amycontainer

Bdata

Cupload

Ddata.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Using just 'data' misses the file extension.

Using 'mycontainer' is incorrect because it's the container name, not blob name.

The --name parameter should be the blob name, usually the file name like 'data.txt'.

4fill in blank

hard

Fill both blanks to download a blob named 'report.pdf' from a container to a local file.

Azure

az storage blob download --container-name [1] --name [2] --file localreport.pdf --account-name mystorageaccount

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

Areports

Breport.pdf

Cmycontainer

Ddata.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping container and blob names causes errors.

Using a wrong blob name downloads the wrong file or fails.

The container name is 'mycontainer' and the blob name is 'report.pdf' to download the correct file.

5fill in blank

hard

Fill all three blanks to delete a storage account named 'mystorageaccount' in resource group 'mygroup'.

Azure

az storage account [1] --name [2] --resource-group [3]

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

Acreate

Bdelete

Cmygroup

Dmystorageaccount

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'create' instead of 'delete' will try to make a new account.

Swapping resource group and account names causes errors.

Use delete to remove the storage account named 'mystorageaccount' in the resource group 'mygroup'.

Practice

1. What does the Azure CLI command az storage account create do?

easy

A. Lists all storage accounts in your subscription

B. Deletes an existing storage account

C. Creates a new storage account in Azure

D. Uploads a file to a storage container

Solution

1. Step 1: Understand the command purpose

   The command az storage account create is used to create a new storage account in Azure.

2. Step 2: Compare with other options

   Other options describe deleting, listing, or uploading, which are different commands.

3. Final Answer:

   Creates a new storage account in Azure -> Option C

4. Quick Check:

   Create storage account = Creates new account [OK]

Hint: Create means make new storage account [OK]

Common Mistakes:

• Confusing create with delete
• Thinking it lists accounts
• Mixing upload with account creation

2. Which of the following is the correct syntax to list blobs in a container using Azure CLI?

easy

A. az storage account list --container mycontainer

B. az storage blob list --container-name mycontainer

C. az storage blob upload --container mycontainer

D. az storage container list --blob-name myblob

Solution

1. Step 1: Identify the command to list blobs

   The command to list blobs is az storage blob list with the container name specified.

2. Step 2: Check option syntax correctness

   az storage blob list --container-name mycontainer uses correct command and parameter --container-name. Other options misuse commands or parameters.

3. Final Answer:

   az storage blob list --container-name mycontainer -> Option B

4. Quick Check:

   List blobs = az storage blob list [OK]

Hint: List blobs uses 'az storage blob list' with container name [OK]

Common Mistakes:

• Using container list instead of blob list
• Mixing upload command with list
• Wrong parameter names

3. What will be the output of the following command if the container photos has three blobs named img1.jpg, img2.jpg, and img3.jpg?

az storage blob list --container-name photos --output table

medium

A. A table listing img1.jpg, img2.jpg, img3.jpg blobs

B. An error saying container not found

C. A list of storage accounts

D. An empty list with no blobs

Solution

1. Step 1: Understand the command and container contents

   The command lists blobs in the container named 'photos'. The container has three blobs: img1.jpg, img2.jpg, img3.jpg.

2. Step 2: Predict the output format

   The --output table option formats the output as a table showing blob names.

3. Final Answer:

   A table listing img1.jpg, img2.jpg, img3.jpg blobs -> Option A

4. Quick Check:

   List blobs with table output = table of blob names [OK]

Hint: List blobs shows all files in container as table [OK]

Common Mistakes:

• Expecting error when container exists
• Confusing blobs with storage accounts
• Assuming empty output incorrectly

4. You run the command az storage blob upload --container-name docs --file report.pdf but get an error. What is the most likely cause?

medium

A. The file report.pdf does not exist locally

B. The command syntax is incorrect

C. The container docs does not exist

D. Missing the storage account connection string or credentials

Solution

1. Step 1: Check command requirements

   The upload command requires authentication details like connection string or account key to access storage.

2. Step 2: Analyze common error causes

   Missing credentials is the most common cause of upload failure, even if file and container exist.

3. Final Answer:

   Missing the storage account connection string or credentials -> Option D

4. Quick Check:

   Upload error usually means missing credentials [OK]

Hint: Upload needs credentials; missing them causes errors [OK]

Common Mistakes:

• Assuming file missing without checking
• Ignoring authentication requirements
• Thinking syntax is wrong when it is correct

5. You want to automate backing up files from your local folder backup to an Azure blob container named backup-container. Which sequence of commands correctly achieves this?

hard

A. 1) az storage container create --name backup-container
2) az storage blob upload-batch --source backup --destination backup-container

B. 1) az storage account create --name backup-container
2) az storage blob upload --file backup

C. 1) az storage blob list --container-name backup-container
2) az storage blob download --container-name backup-container

D. 1) az storage container delete --name backup-container
2) az storage blob upload-batch --source backup --destination backup-container

Solution

1. Step 1: Create the container if it does not exist

   The command az storage container create creates the container named 'backup-container'.

2. Step 2: Upload all files from local folder to container

   The command az storage blob upload-batch uploads all files from the local 'backup' folder to the container.

3. Final Answer:

   1) az storage container create --name backup-container 2) az storage blob upload-batch --source backup --destination backup-container -> Option A

4. Quick Check:

   Create container then batch upload = backup done [OK]

Hint: Create container first, then upload batch files [OK]

Common Mistakes:

• Trying to upload without container
• Confusing account creation with container
• Deleting container before upload