Data Back Up Flashcards

What is the primary purpose of data backup?

Answer: To create copies of data to prevent data loss

Data backups are essential for creating copies of important data to recover from data loss incidents.

Which of the following is an advantage of using cloud backup services?

Answer: Data is accessible from any location with internet access

Cloud backup services allow users to access their data from anywhere, providing flexibility and convenience.

Which type of backup only saves changes made since the last backup?

Answer: Incremental backup

Incremental backups only save the changes made since the last backup, reducing storage space and time required.

What is the key difference between differential and incremental backups?

Answer: Differential backups save all changes since the last full backup

Differential backups save all changes since the last full backup, while incremental backups only save changes since the last backup of any type.

How often should you perform a full backup of critical data?

Answer: It depends on the frequency of data changes and importance

The frequency of full backups depends on how often data changes and its importance. Critical data may require more frequent backups.

What is the 3-2-1 backup rule?

Answer: Keep 3 copies of data: 1 primary and 2 backups

The 3-2-1 backup rule means having 3 copies of data: 1 primary copy and 2 backups, with 1 off-site to ensure redundancy.

Which storage medium is known for its durability and long-term storage capabilities?

Answer: Magnetic Tapes

Magnetic tapes are known for their durability and ability to store data for long periods, making them suitable for archival purposes.

What is an important step to take before restoring data from a backup?

Answer: Ensure the backup data is current and not corrupted

It's important to verify that the backup data is up-to-date and not corrupted before starting the restoration process.

Which of the following is a disadvantage of local backups?

Answer: Risk of physical damage or theft

Local backups are vulnerable to physical damage or theft, which can result in the loss of both the original data and the backup.

What is the main benefit of using automated backup solutions?

Answer: Reduced risk of human error and ensures regular backups

Automated backup solutions help ensure that backups are performed regularly and correctly, reducing the risk of human error.

In case of a ransomware attack, why is having an offline backup important?

Answer: Offline backups are immune to network-based attacks

Offline backups are not connected to the network, making them safe from ransomware and other network-based attacks.