Understanding Backup and Storage Principles

Which of the following best describes a full backup?

• Only files that have changed since the last backup are copied.

• All selected data is copied, regardless of previous backups.

• Only system files are copied.

• Only user documents are copied.

What is the main advantage of using incremental backups?

• They require the most storage space.

• They are the fastest to restore.

• They only back up data that has changed since the last backup, saving time and space.

• They back up the entire system every time.

Which backup type requires the least amount of storage space over time?

• Full backup

• Differential backup

• Incremental backup

• Mirror backup

What is data redundancy in the context of storage systems?

• Storing data in a compressed format

• Storing multiple copies of data in different locations

• Encrypting data before storage

• Deleting duplicate files

Which of the following is a common method for achieving data redundancy?

• RAID (Redundant Array of Independent Disks)

• Data compression

• Data fragmentation

• Data normalisation

Which cloud storage solution is most suitable for collaborative document editing in real time?

• Google Drive

• Dropbox

• OneDrive

• All of the above

What is a key benefit of using cloud storage for backups?

• Data is only accessible from one device.

• Data is stored off-site, providing protection against local disasters.

• Data is less secure than on-site storage.

• Data cannot be shared with others.

Which of the following is NOT typically included in a disaster recovery plan?

• Procedures for restoring data

• Contact information for key personnel

• Steps for regular software updates

• Identification of critical systems

What is the primary goal of disaster recovery planning?

• To prevent all data loss

• To ensure rapid restoration of IT services after a disruption

• To increase the speed of daily operations

• To reduce the cost of hardware

How often should mission-critical data typically be backed up?

• Once a year

• Once a month

• Daily or more frequently

• Only after major changes