File shares (Azure Files) - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Azure Files?

Azure Files is a cloud service that offers shared file storage accessible via standard SMB protocol. It lets multiple users or applications access the same files easily, like a shared folder on a network.

beginner

How do you access Azure File shares from Windows?

You can access Azure File shares by mounting them as network drives using the SMB protocol. This works like connecting to a shared folder on your local network.

intermediate

What is the difference between Azure Files and Azure Blob Storage?

Azure Files provides shared file storage with SMB access, good for lift-and-shift apps. Azure Blob Storage is for unstructured data accessed via REST APIs, ideal for large-scale object storage.

intermediate

What is the maximum size of an Azure File share?

An Azure File share can be up to 100 TiB in size when using the standard performance tier.

intermediate

How does Azure Files ensure data durability?

Azure Files stores data redundantly across multiple servers and data centers, using replication options like locally-redundant storage (LRS) or geo-redundant storage (GRS) to protect against hardware failures.

Which protocol does Azure Files use to allow file sharing?

A FTP

B SMB

C HTTP

D NFS

Azure Files uses the SMB protocol to provide shared file access.

What is a common use case for Azure Files?

A Running virtual machines

B Hosting websites

C Streaming video content

D Shared storage for lift-and-shift applications

Azure Files is often used to provide shared storage for applications moved to the cloud without redesign.

What is the maximum size of a standard Azure File share?

A 100 TiB

B 10 TiB

C 1 TiB

D 1 PiB

Standard Azure File shares can be up to 100 TiB in size.

Which Azure Files feature helps protect data against data center failures?

A Locally-redundant storage (LRS)

B Encryption at rest

C Geo-redundant storage (GRS)

D Manual backups

Geo-redundant storage replicates data to a secondary region to protect against data center failures.

How can you mount an Azure File share on a Linux machine?

A Using SMB client with mount.cifs

B Using FTP client

C Using SSH

D Using HTTP download

Linux machines mount Azure File shares using the SMB protocol with mount.cifs.

Explain what Azure Files is and how it can be used in cloud applications.

Think about how a shared folder works on a local network.

Describe the data durability and replication options available for Azure Files.

Consider how cloud storage keeps your files safe even if something breaks.

Practice

1. What is the primary purpose of Azure Files in cloud infrastructure?

easy

A. To create virtual networks for Azure resources

B. To provide cloud-based file shares accessible via SMB or NFS protocols

C. To manage databases in the cloud

D. To host virtual machines in Azure

Solution

1. Step 1: Understand Azure Files functionality

   Azure Files offers file shares in the cloud that can be accessed using SMB or NFS protocols, allowing easy file sharing.

2. Step 2: Compare other options

   Options A, B, and C describe other Azure services unrelated to file sharing.

3. Final Answer:

   To provide cloud-based file shares accessible via SMB or NFS protocols -> Option B

4. Quick Check:

   Azure Files = Cloud file shares [OK]

Hint: Azure Files = cloud file shares via SMB/NFS [OK]

Common Mistakes:

• Confusing Azure Files with virtual machines
• Thinking Azure Files manages databases
• Mixing Azure Files with networking services

2. Which of the following is the correct way to set a quota for an Azure file share using Azure CLI?

easy

A. az storage file set-quota --name myshare --quota 100

B. az storage share create --name myshare --quota 100 --account-name mystorage

C. az storage account set-quota --name myshare --quota 100

D. az storage share update --name myshare --quota 100 --account-name mystorage

Solution

1. Step 1: Identify the correct Azure CLI command for setting quota

   The command to set a quota on an existing Azure file share is az storage share update.

2. Step 2: Verify command parameters

   The command requires the share name, quota size, and storage account name, matching az storage share update --name myshare --quota 100 --account-name mystorage.

3. Final Answer:

   az storage share update --name myshare --quota 100 --account-name mystorage -> Option D

4. Quick Check:

   Set quota = az storage share update [OK]

Hint: Use 'az storage share update --quota' to set file share quota [OK]

Common Mistakes:

• Using 'create' command instead of 'update'
• Confusing storage account quota with share quota
• Using incorrect command names like 'file set-quota'

3. Given the following Azure CLI commands, what will be the quota size of the file share named datafiles?

az storage share create --name datafiles --quota 50 --account-name mystorage
az storage share update --name datafiles --quota 200 --account-name mystorage

medium

A. 200 GB

B. 50 GB

C. 250 GB

D. Quota not set

Solution

1. Step 1: Analyze the initial quota setting

   The file share datafiles is created with a quota of 50 GB.

2. Step 2: Analyze the quota update command

   The quota is then updated to 200 GB using the update command, which overrides the initial quota.

3. Final Answer:

   200 GB -> Option A

4. Quick Check:

   Last quota set = 200 GB [OK]

Hint: Last quota command overrides previous quota [OK]

Common Mistakes:

• Adding quotas instead of overriding
• Assuming initial quota remains unchanged
• Ignoring the update command effect

4. You run the command az storage share update --name myshare --quota 500 --account-name mystorage but receive an error. What is the most likely cause?

medium

A. The share name contains invalid characters

B. The storage account name is missing

C. The quota value exceeds the maximum allowed size for the storage account

D. The command syntax is incorrect

Solution

1. Step 1: Check quota limits for Azure file shares

   Azure file shares have maximum quota limits depending on the storage account type. Setting a quota too large causes an error.

2. Step 2: Verify other command parts

   The share name and account name appear valid and present, and the command syntax matches the correct format.

3. Final Answer:

   The quota value exceeds the maximum allowed size for the storage account -> Option C

4. Quick Check:

   Quota too large causes error [OK]

Hint: Check quota limits before setting large sizes [OK]

Common Mistakes:

• Assuming syntax error without checking quota size
• Ignoring storage account quota limits
• Mistaking missing parameters for invalid names

5. You want to share files between multiple Azure VMs securely using Azure Files. Which of the following steps should you take to ensure secure access to the file share?

hard

A. Create an Azure file share with SMB protocol and use Azure AD authentication with role-based access control

B. Create an Azure file share with public access enabled so all VMs can connect without credentials

C. Use NFS protocol without authentication to simplify access

D. Store files locally on each VM instead of using Azure Files

Solution

1. Step 1: Identify secure access methods for Azure Files

   Azure Files supports SMB with Azure AD authentication and role-based access control to secure file shares.

2. Step 2: Evaluate other options for security

   Public access (Create an Azure file share with public access enabled so all VMs can connect without credentials) is insecure, NFS without authentication (Use NFS protocol without authentication to simplify access) is insecure, and storing files locally (Store files locally on each VM instead of using Azure Files) does not share files across VMs.

3. Final Answer:

   Create an Azure file share with SMB protocol and use Azure AD authentication with role-based access control -> Option A

4. Quick Check:

   Secure Azure Files = SMB + Azure AD + RBAC [OK]

Hint: Use SMB with Azure AD and RBAC for secure file shares [OK]

Common Mistakes:

• Enabling public access for file shares
• Using NFS without authentication
• Not using centralized file sharing