Question

Difficulty: MediumAzure Storage Accounts, Blob, Disk, Files, and Storage Tiers

A financial institution uses Azure Blob Storage to retain historical transaction logs for regulatory compliance. The logs are rarely accessed and are stored in the Archive access tier to minimize cost. An auditor requests access to a specific log file from three years ago.

Which requirement must the institution meet before the auditor can read the log file?

  1. A
    The log file can be read directly, but the institution will incur a high per-gigabyte retrieval penalty.
  2. The log file must be rehydrated to an online tier, such as Hot or Cool, before it can be read.Answer
  3. C
    The institution must perform operating system updates on the underlying storage server host before accessing the log.
  4. D
    The data must be accessed directly from the Archive tier by configuring a ReadOnly resource lock on the storage account.

Answer

The log file must be rehydrated to an online tier, such as Hot or Cool, before it can be read.
Data in the Archive access tier is offline and cannot be read directly. To read this data, it must first be rehydrated (copied or moved) to an online tier such as Hot or Cool.

Step-by-Step Solution

1
Determine the state of the data stored in the Archive access tier.
The Archive tier is an offline storage tier designed for rarely accessed data.
Understanding that data in the Archive tier is not immediately accessible.
2
Identify the process required to access offline blobs.
To access the data, the blob must be rehydrated to an online tier (Hot or Cool).
Data must be brought online before it can be read or modified.
3
Determine if customer infrastructure management is required.
Azure Storage is a PaaS service, so no OS management is required by the customer.
Distinguishing cloud service model responsibilities.

Key Concept

Azure Blob Storage Archive Access Tier and Rehydration
Rate this question