AZ-104 Implement and Manage Storage Practice Test 12 — 15 Questions

Question 1

An analytics team keeps quarterly telemetry exports in Azure Blob Storage. The files are accessed only a few times per year, but when they are needed they must remain online and immediately readable without any rehydration delay. Which access tier should you use?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Cold, because it is intended for rarely accessed online data with lower storage cost.. The Cold tier is designed for data that is rarely accessed but must remain online with immediate read access, offering lower storage costs than Cool or Hot tiers while avoiding the rehydration delay of Archive. The scenario specifies files are accessed only a few times per year but must be immediately readable without any rehydration delay, which matches Cold tier's purpose of providing online access with no latency for infrequent reads.

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Hot, because it is optimized for frequent reads and writes.

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Cool, because it is designed for infrequently accessed data that still stays online.

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Archive, because it is the cheapest tier and can be opened directly in the portal.

Question 2

A development team stores build artifacts in Azure Blob Storage. The artifacts must remain available if one datacenter in the Azure region fails, but the business does not want to pay for replication to another region. Which redundancy option should the administrator select?

Accepted Answer

ZRS, because it distributes copies across availability zones within the same region.. B is correct because Zone-Redundant Storage (ZRS) synchronously replicates data across three Azure availability zones within the same region, ensuring durability even if one entire datacenter (zone) fails. This meets the requirement of intra-region resilience without incurring the cost of geo-replication to another region.

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LRS, because it keeps multiple copies in the same zone and is the cheapest option.

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GRS, because it keeps the workload available in two regions at all times.

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RA-GRS, because it provides zone redundancy and read access in the secondary region.

Question 3

A legal department keeps evidence files in Azure Blob Storage. The files are accessed only a few times per year, but they must stay online and be immediately readable when requested. The team wants the lowest-cost online tier and does not want a rehydration step. Which tier should you choose?

Accepted Answer

Cold, because it keeps data online and is intended for rarely accessed content.. The Cold tier is the correct choice because it is an online tier designed for rarely accessed data that must remain immediately readable without a rehydration step. It offers lower storage costs than Hot or Cool while still providing instant access, meeting the requirement for the lowest-cost online tier.

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Hot, because it prioritizes immediate access over storage cost.

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Cool, because it is an online tier for infrequent access.

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Archive, because it has the lowest cost and can be opened instantly from the portal.

Question 4

A compliance team keeps signed contract scans in Azure Blob Storage. The files are usually read only a few times per year, but when a reviewer needs one, it must be available immediately without waiting for rehydration. Which access tier should the administrator use?

Accepted Answer

Cold, because it is designed for infrequently accessed data and remains online for immediate reads.. The Cold access tier is designed for data that is infrequently accessed but must remain online and immediately readable without any rehydration delay. Since the compliance team needs instant access to contract scans when requested, Cold tier provides low-cost storage while keeping data online, unlike Archive which requires rehydration.

Answer

Hot, because it is optimized for frequent access and immediate retrieval.

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Cool, because it is online and suited to infrequent access while remaining immediately readable.

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Archive, because it is the lowest-cost option and can still be read instantly.

Question 5

An operations team archived monthly log exports six weeks ago. An auditor now needs one specific blob restored within a day, and the file will likely be opened several times during the audit. Which action should the administrator take first?

Accepted Answer

Rehydrate the blob to the Hot tier. The blob is currently in the Archive tier, which is offline and cannot be read directly. To access the data, the blob must first be rehydrated to an online tier (Hot or Cool) by changing its tier or copying it to a new blob. Rehydrating to the Hot tier ensures the blob is available for multiple reads within the audit timeframe, as the rehydration process typically takes up to 15 hours for Archive tier blobs.

Answer

Set the blob directly to the Archive tier again

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Create a snapshot of the archived blob and open the snapshot

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Increase the account redundancy to RA-GRS before the audit

Question 6

A records team wants blobs to be replicated to a secondary region, and the secondary copy must be readable if the primary region becomes unavailable. Which redundancy option should you choose?

Accepted Answer

Read-access geo-redundant storage (RA-GRS). RA-GRS (Read-access geo-redundant storage) is correct because it provides geo-redundant replication (GRS) to a secondary region, plus read access to the secondary copy even if the primary region is unavailable. This ensures the blob data is replicated asynchronously to a paired secondary region, and the secondary endpoint can be read immediately during a primary outage, meeting the team's requirement for readable secondary copies.

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Locally redundant storage (LRS)

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Zone-redundant storage (ZRS)

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Geo-redundant storage (GRS)

Question 7

Match each storage networking requirement to the Azure storage network control that should be used.

Accepted Answer

Enable secure access from a specific VNet: Use service endpoints. Azure storage network controls: service endpoints for VNet access, private endpoints for private connectivity, IP firewall for public IP restrictions, trusted services exception, route tables for custom routing, and disabling public access for complete lockdown.

Answer

Enable secure access from a specific VNet: Use private endpoints

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Restrict access to a specific public IP address: Enable trusted services exception

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Block all public network access: Use IP firewall rules

Question 8

An organization wants a single Azure storage account that can host blob containers, Azure Files shares, and lifecycle management rules for blob data. Which storage account kind should the administrator create?

Accepted Answer

General-purpose v2 (StorageV2). General-purpose v2 (StorageV2) is the only storage account kind that supports blobs, Azure Files, and lifecycle management rules for blob data. It provides a unified account for all Azure Storage data services, including blobs, files, queues, and tables, and it natively supports lifecycle management policies to automatically tier or delete blob data based on age or other conditions.

Answer

BlobStorage

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FileStorage

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BlockBlobStorage

Question 9

Match each storage resiliency requirement to the Azure redundancy option that best satisfies it.

Accepted Answer

LRS: Locally redundant storage replicates data three times within a single datacenter in the primary region.. LRS replicates within a single datacenter; ZRS across zones; GRS across regions; RA-GRS adds read access to GRS; RA-ZRS adds read access to ZRS. LRS is cheapest, GRS is highest durability.

Answer

LRS: Provides synchronous replication across three availability zones.

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GRS: Provides read access to the secondary region.

Question 10

Match each lifecycle management requirement to the blob tier transition or action that should be configured.

Accepted Answer

Move blobs not modified for 30 days: Transition to cool tier. Lifecycle management rules define actions (tier changes or deletion) based on age or access. The actions correspond to moving to cooler tiers (cool, cold, archive) or deleting, and can apply to snapshots.

Answer

Move blobs not modified for 30 days: Transition to archive tier

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Move blobs not modified for 90 days: Transition to cool tier

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Delete blobs after 365 days: Transition to cool tier

Question 11

An application runs on an Azure VM in a subnet and must access a storage account over the public endpoint without using a private IP address. The administrator wants to restrict access so only that subnet can reach the account. What should be configured?

Accepted Answer

Enable a service endpoint for Microsoft.Storage on the subnet and add the subnet to the storage account network rules.. A service endpoint for Microsoft.Storage extends the virtual network identity to the subnet, allowing the storage account firewall to accept traffic from that subnet via its public endpoint. This meets the requirement of restricting access to the storage account's public endpoint without using a private IP address.

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Create a private endpoint for the storage account and disable the public endpoint.

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Allow trusted Microsoft services to bypass the firewall.

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Add a user-defined route that points storage traffic to the virtual network gateway.

Question 12

A storage account must stay reachable through its public endpoint, but only Azure workloads in AppSubnet should be allowed to access it. No private IP is required. What should you configure?

Accepted Answer

A service endpoint on AppSubnet and a storage firewall VNet rule.. A service endpoint on AppSubnet extends the Azure backbone network to the subnet, allowing traffic to the storage account's public endpoint without a private IP. The storage firewall VNet rule then restricts access to only traffic originating from that specific subnet, meeting the requirement of public endpoint reachability with Azure workload-only access.

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A private endpoint in AppSubnet.

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A VPN gateway between AppSubnet and the storage account.

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A public IP address on the storage account.

Question 13

Which two authentication methods let an app access blob data without storing the storage account key on the machine? Select two.

Accepted Answer

Microsoft Entra ID authorization with an appropriate Azure RBAC role.. Microsoft Entra ID authorization with an appropriate Azure RBAC role (e.g., Storage Blob Data Contributor) allows an app to authenticate to blob storage using OAuth 2.0 tokens, eliminating the need to store the storage account key on the machine. Option B is correct because a user delegation SAS is signed with Microsoft Entra ID credentials and can be generated without the account key, providing time-limited, scoped access to blob data.

Answer

The storage account access key.

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A service SAS generated directly from the account key.

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Anonymous public access to the container.

Question 14

A Windows VM and a Linux VM in Azure need to use the same shared folder for application artifacts. The team wants a managed file service instead of running a separate file server VM, and both operating systems must be able to mount the share using a standard protocol. Which solution should the administrator implement?

Accepted Answer

Create an Azure Files share and mount it over SMB from both virtual machines.. Azure Files provides a fully managed file share that supports both SMB and NFS protocols. Since the question requires a managed file service accessible by both Windows and Linux VMs using a standard protocol, the correct solution is to create an Azure Files share and mount it over SMB from both VMs. Windows natively supports SMB, and Linux can mount SMB shares using the CIFS-utils package, meeting the requirement without running a separate file server VM.

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Create a blob container and mount it as a file system from both virtual machines.

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Use an Azure managed disk and attach it to both virtual machines.

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Create an Azure Files share and force the Linux VM to use NFS while the Windows VM uses SMB.

Question 15

A help desk group must use the Azure portal to start a virtual machine, stop or deallocate it, and see its current state, but they must not change any other VM settings. Which three Microsoft.Compute actions should be included in a custom role? Select three.

Accepted Answer

Microsoft.Compute/virtualMachines/read. The Microsoft.Compute/virtualMachines/read permission is required to view the current state of a virtual machine in the Azure portal. Without this read action, the help desk group would not be able to see the VM's status, which is essential for their task of monitoring and managing the VM lifecycle.

Answer

Microsoft.Compute/virtualMachines/write

Answer

Microsoft.Compute/virtualMachines/delete