Sample questions
Azure Storage Blob Managed DiskDifficulty 1
A team stores log files that are read frequently during the first week after creation, then rarely touched again. Which Blob Storage access tier is designed for this kind of frequently-accessed data?
- aArchive, since it is the cheapest tier available
- bHot, since it is optimized for data that is accessed frequently and has the lowest access (read/write) cost of the online tiers✓
- cCold, since it is meant for data accessed within the first week
- dThere is no tiering concept in Blob Storage; all blobs cost the same regardless of access pattern
Explanation:The Hot tier is optimized for data accessed frequently. It has higher storage cost per GB than Cool/Cold/Archive, but the lowest access (transaction and read/write) cost, making it the right fit for actively-read data like recent logs.
Azure Storage Blob Managed DiskDifficulty 1
What is the minimum recommended retention duration typically associated with the Archive access tier before rehydrating a blob back to a warmer tier is cost-effective?
- aThere is no minimum; Archive can be rehydrated immediately at no cost at any time
- b1 day
- c180 days — Archive is intended for rarely-accessed data with a long-term retention need, and early deletion/rehydration before this incurs an early-deletion penalty✓
- dArchive has no early-deletion penalty at all, unlike Cool or Cold
Explanation:The Archive tier is intended for data that can tolerate hours of retrieval latency and is rarely accessed, with a recommended minimum storage duration of 180 days; deleting, moving to another tier, or rehydrating a blob before that incurs a pro-rated early-deletion fee.
Azure Storage Blob Managed DiskDifficulty 1
What does an Azure Storage lifecycle management policy allow a team to automate?
- aAutomatically transitioning blobs between access tiers✓
- bAutomatically encrypting blobs with a customer-managed key on a schedule
- cAutomatically resizing the storage account's capacity limit as data grows
- dAutomatically converting block blobs into managed disks
Explanation:A lifecycle management policy is a set of rules that automatically move blobs to cooler (cheaper) tiers or delete them once they meet age-based or last-accessed-based conditions, removing the need for manual tiering/cleanup.
Azure Storage Blob Managed DiskDifficulty 2
When blob soft delete is enabled on a storage account and a blob is deleted, what actually happens?
- aThe blob is permanently and immediately removed; soft delete only protects containers, not individual blobs
- bThe blob is moved to a separate 'Recycle Bin' storage account automatically
- cThe blob's data is instantly overwritten with zeros for compliance reasons
- dThe blob is marked as deleted✓
Explanation:Soft delete retains a deleted blob (and, depending on configuration, its overwritten versions) in a recoverable state for a configured retention period (1-365 days), allowing it to be undeleted before it is permanently purged.
Azure Storage Blob Managed DiskDifficulty 2
What is the primary purpose of a Shared Access Signature (SAS) in Azure Storage?
- aTo permanently grant a user the storage account's full access key
- bTo grant delegated, time-limited, and scope-limited access to storage resources without sharing the account's access keys✓
- cTo encrypt blob data at rest with a customer-managed key
- dTo replicate a storage account to a secondary region automatically
Explanation:A SAS is a signed URI that grants limited access (specific permissions, resources, and a time window) to storage resources, letting an application share access without ever exposing the account's master access keys.
Azure Storage Blob Managed DiskDifficulty 2
A VM needs a data disk for a production database workload requiring consistent, predictable low-latency performance. Which Managed Disk type is the standard production choice for this?
- aStandard HDD, since it is the default choice for all VM workloads
- bStandard SSD, since it always matches Premium SSD performance at lower cost
- cPremium SSD✓
- dAny disk type performs identically; disk type only affects cost, not performance
Explanation:Premium SSD managed disks are backed by solid-state drives and are designed for production and performance-sensitive workloads, offering consistent low latency and high IOPS/throughput compared to Standard HDD/SSD — but they require a VM size that supports Premium storage.