MCQs on Data Protection and Backup in Blob Storage | Azure Storage
Data Protection and Backup in Azure Blob Storage MCQs: Test your knowledge on Azure Blob Storage with 30 multiple-choice questions focusing on Blob snapshots, soft delete for blob recovery, and point-in-time restore and backup strategies.
Blob Snapshots for Versioning and Recovery (10 MCQs)
- What is the primary function of Blob snapshots in Azure?
- A) Compressing blobs
- B) Creating backup copies of blobs at a specific point in time
- C) Encrypting blobs
- D) Deleting blobs
- How can Blob snapshots help in data recovery?
- A) By permanently deleting old data
- B) By providing a rollback point to a previous version of a blob
- C) By reducing storage costs
- D) By archiving blobs to cold storage
- What is a key difference between a regular blob and a Blob snapshot in Azure Blob Storage?
- A) Snapshots are stored in a different region
- B) Snapshots consume the same storage as the original blob
- C) Snapshots only store changes made to the blob
- D) Snapshots are larger than regular blobs
- In Azure Blob Storage, how are snapshots created?
- A) Using a scheduled backup job
- B) Manually, by invoking the snapshot operation on the blob
- C) Automatically, when a blob is uploaded
- D) Only during data transfer to Azure
- Which of the following is NOT a benefit of Blob snapshots?
- A) Point-in-time recovery
- B) Improved read performance
- C) Reduced storage costs
- D) Data versioning
- How long are Blob snapshots stored by default in Azure Blob Storage?
- A) Indefinitely
- B) Until manually deleted
- C) 30 days
- D) 7 days
- Can Blob snapshots be used to restore a deleted blob?
- A) Yes, snapshots allow restoring the exact version of the blob
- B) No, snapshots cannot be used for recovery
- C) Yes, but only if the blob was modified within the last 24 hours
- D) No, snapshots are not tied to specific blobs
- How are Blob snapshots charged in Azure?
- A) They are charged as a full backup of the original blob
- B) They are free
- C) Only for the changes (deltas) from the original blob
- D) Based on the number of snapshots created
- What happens when a blob is modified after a snapshot is taken?
- A) The snapshot is automatically deleted
- B) The snapshot is updated with the new changes
- C) The snapshot becomes invalid
- D) A new snapshot is automatically created
- Which Azure tool can be used to list and manage Blob snapshots?
- A) Azure CLI
- B) Azure Portal
- C) PowerShell
- D) All of the above
Soft Delete for Blob Recovery (10 MCQs)
- What is the purpose of the Soft Delete feature in Azure Blob Storage?
- A) To recover deleted blobs within a retention period
- B) To reduce storage costs by archiving data
- C) To delete blobs permanently without a recovery option
- D) To prevent blob overwrites
- How does Soft Delete work in Azure Blob Storage?
- A) It moves the blob to cold storage
- B) It marks the blob as deleted but allows recovery within a configured retention period
- C) It encrypts the blob for security purposes
- D) It permanently deletes the blob and frees up storage space
- What is the retention period for a Soft Deleted blob in Azure Blob Storage?
- A) 7 days (default)
- B) 30 days (default)
- C) 90 days
- D) 365 days
- Can Soft Delete be configured for individual blobs in Azure Blob Storage?
- A) Yes, for each blob separately
- B) No, it is applied at the account level
- C) Yes, but only for container-level data
- D) No, it is not configurable
- How can a Soft Deleted blob be restored?
- A) It is automatically restored after the retention period
- B) Using the Azure Portal or CLI to undelete it within the retention period
- C) By performing a restore operation from Azure Backup
- D) Soft Deleted blobs cannot be restored
- What happens to a Soft Deleted blob after the retention period expires?
- A) It is automatically restored
- B) It is permanently deleted and cannot be recovered
- C) It is archived in cold storage
- D) It becomes a snapshot
- Which of the following is NOT affected by Soft Delete in Azure Blob Storage?
- A) Append blobs
- B) Block blobs
- C) Page blobs
- D) Azure Data Lake Storage Gen2 blobs
- Can a Soft Deleted blob incur storage charges during the retention period?
- A) Yes, it still consumes storage during the retention period
- B) No, it is not charged for storage during the retention period
- C) Yes, but at a lower rate than active blobs
- D) No, it is archived and not charged
- How can you enable or disable Soft Delete for Azure Blob Storage?
- A) Through the Azure CLI
- B) Through the Azure Portal
- C) By using Azure PowerShell
- D) All of the above
- Which Azure service integrates with Soft Delete for enhanced data protection?
- A) Azure Backup
- B) Azure Security Center
- C) Azure Monitor
- D) Azure Key Vault
Point-in-Time Restore and Backup Strategies (10 MCQs)
- What does Point-in-Time restore allow you to do in Azure Blob Storage?
- A) Restore blobs to a specific time or version
- B) Delete blobs from a specific point in time
- C) Archive blobs after a specified period
- D) Encrypt blobs before restoring
- Which backup strategy is most effective for disaster recovery in Azure Blob Storage?
- A) Incremental backup
- B) Full backup
- C) Differential backup
- D) Point-in-time backup
- How is Point-in-Time restore typically achieved in Azure Blob Storage?
- A) By using Azure Backup or snapshots
- B) By enabling Soft Delete
- C) By manually downloading previous versions
- D) Through automated blob archiving
- What is a major advantage of using Point-in-Time restore?
- A) It saves costs by deleting old blobs
- B) It helps recover from accidental data loss or corruption
- C) It archives blobs permanently
- D) It ensures fast blob encryption
- Which of these is NOT a valid strategy for backing up Azure Blob Storage?
- A) Geo-redundant backup
- B) Azure Backup
- C) Manual snapshot creation
- D) Dynamic encryption backup
- What is the minimum retention period required for Point-in-Time restore in Azure Blob Storage?
- A) 7 days
- B) 30 days
- C) 14 days
- D) 90 days
- How does Azure Backup help in Point-in-Time restore for Azure Blob Storage?
- A) By creating snapshots every hour
- B) By providing backup and restore capabilities with versioning
- C) By automatically deleting old blobs
- D) By archiving blobs indefinitely
- Which of the following is true about Azure Backup for blob recovery?
- A) It only restores entire containers
- B) It supports backup of data to on-premises servers
- C) It allows incremental backups and restores individual blobs
- D) It is only for large data centers
- How do you prevent accidental data loss in Azure Blob Storage using backup strategies?
- A) By using Soft Delete and periodic snapshots
- B) By turning off versioning
- C) By deleting old backups
- D) By enabling container-level encryption
- What is the role of geo-redundancy in backup and restore strategies for Azure Blob Storage?
- A) It replicates data to a secondary location for disaster recovery
- B) It provides faster read/write operations for backups
- C) It helps encrypt backup data
- D) It archives data for long-term storage
Answers
| Qno | Answer |
|---|---|
| 1 | B) Creating backup copies of blobs at a specific point in time |
| 2 | B) By providing a rollback point to a previous version of a blob |
| 3 | C) Snapshots only store changes made to the blob |
| 4 | B) Manually, by invoking the snapshot operation on the blob |
| 5 | B) Improved read performance |
| 6 | B) Until manually deleted |
| 7 | A) Yes, snapshots allow restoring the exact version of the blob |
| 8 | C) Only for the changes (deltas) from the original blob |
| 9 | D) A new snapshot is automatically created |
| 10 | D) All of the above |
| 11 | A) To recover deleted blobs within a retention period |
| 12 | B) By marking the blob as deleted but allows recovery within a configured retention period |
| 13 | A) 7 days (default) |
| 14 | B) No, it is applied at the account level |
| 15 | B) Using the Azure Portal or CLI to undelete it within the retention period |
| 16 | B) It is permanently deleted and cannot be recovered |
| 17 | D) Azure Data Lake Storage Gen2 blobs |
| 18 | A) Yes, it still consumes storage during the retention period |
| 19 | D) All of the above |
| 20 | A) Azure Backup |
| 21 | A) Restore blobs to a specific time or version |
| 22 | B) Full backup |
| 23 | A) By using Azure Backup or snapshots |
| 24 | B) It helps recover from accidental data loss or corruption |
| 25 | D) Dynamic encryption backup |
| 26 | B) 30 days |
| 27 | B) By providing backup and restore capabilities with versioning |
| 28 | C) It allows incremental backups and restores individual blobs |
| 29 | A) By using Soft Delete and periodic snapshots |
| 30 | A) It replicates data to a secondary location for disaster recovery |