Types of Data Backup: A Comprehensive Guide for Cybersecurity Professionals

Question 1

Which type of data backup creates a new, complete copy of all data during each backup cycle?

Accepted Answer

Full backup

Answer

Mirror backup

Answer

Incremental backup

Answer

Differential backup

Question 2

Which type of backup is most suitable for applications that are frequently updated?

Accepted Answer

Incremental backup

Answer

Differential backup

Answer

Mirror backup

Answer

Full backup

Question 3

What is the difference between a differential backup and an incremental backup?

Accepted Answer

A differential backup records changes since the last full backup, while an incremental backup records changes since the last backup of any type.

Answer

An incremental backup is faster than a differential backup.

Question 4

Which type of backup is typically used to protect against file corruption?

Accepted Answer

Mirror backup

Answer

Differential backup

Answer

Full backup

Answer

Incremental backup

Question 5

What is the main disadvantage of using a mirror backup?

Accepted Answer

They are expensive to implement.

Answer

They cannot be used for disaster recovery.

Answer

They can be slow to perform.

Answer

They are not as reliable as other backup types.

Question 6

Which type of backup strategy involves creating multiple backups at different points in time?

Accepted Answer

Versioned backup

Answer

Differential backup

Answer

Incremental backup

Answer

Full backup

Question 7

What is the purpose of a rotation scheme in data backup?

Accepted Answer

To ensure that there are always multiple backups available in case of failure.

Answer

To reduce the amount of storage space required for backups.

Answer

To speed up the backup process.

Question 8

What is the difference between a cold backup and a hot backup?

Accepted Answer

A cold backup is performed on a stopped system, while a hot backup is performed on a running system.

Answer

Cold backups are more reliable than hot backups.

Answer

A hot backup is faster than a cold backup.

Question 9

Which type of backup only stores the changes made to files since the last full backup?

Accepted Answer

Incremental backup

Answer

Differential backup

Answer

Full backup

Question 10

Which type of backup stores several versions of files, allowing for point-in-time restoration?

Accepted Answer

Versioned backup

Answer

Differential backup

Answer

Log-based backup

Answer

Full backup

Question 11

Which backup strategy is ideal for large datasets that change frequently?

Accepted Answer

Incremental backup with periodic full backups

Answer

Differential backup only

Answer

Full backup only

Answer

Incremental backup only

Question 12

Which backup technique continuously captures every data change using a Continuous Data Protection (CDP) approach?

Accepted Answer

Log-based backup

Answer

Replication

Answer

Mirroring

Answer

Snapshot backup

Question 13

Which backup storage medium is distinguished by its longevity, portability, and significant storage capacity?

Accepted Answer

Magnetic tape

Answer

Hard disk drive (HDD)

Answer

Optical disc

Answer

Solid-state drive (SSD)

Question 14

Which type of backup captures a complete copy of all data on a storage device at a specific point in time?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

Differential backup

Question 15

Which type of backup captures only the data that has changed since the last full backup?

Accepted Answer

Incremental backup

Answer

Full backup

Answer

Differential backup

Answer

Reverse backup

Question 16

Which backup strategy is suitable for large datasets that undergo frequent changes?

Accepted Answer

Incremental backup

Answer

Differential backup

Answer

Full backup

Question 17

Which of the following is an advantage of utilizing cloud backups?

Accepted Answer

Off-site storage

Answer

Slow recovery time

Answer

Limited storage capacity

Answer

High cost

Question 18

Which of the following is a disadvantage of utilizing tape backups?

Accepted Answer

Slow data access

Answer

High storage capacity

Answer

Affordable

Question 19

Which of the following is a recommended best practice in data backup?

Accepted Answer

Regularly testing backups

Answer

Solely relying on local storage

Answer

Keeping backups unencrypted

Answer

Neglecting documentation

Question 20

Which of the following is a common challenge associated with data backup?

Accepted Answer

Data loss due to human error

Answer

Fast recovery times

Answer

Unlimited storage capacity

Answer

Guaranteed data integrity

Question 21

Which type of backup creates a complete copy of the entire dataset?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

Mirror backup

Answer

Differential backup

Question 22

Which backup strategy combines incremental backups with periodic full backups, offering a balance between recovery time and storage space?

Accepted Answer

Incremental backups with periodic full backups

Answer

Incremental backups only

Answer

Differential backups only

Answer

Full backups only

Question 23

Which backup method is known for its reduced backup time compared to full backups?

Accepted Answer

Incremental backup

Answer

Full backup

Answer

Differential backup

Question 24

Which backup type requires the most storage space due to its complete copy of the dataset?

Accepted Answer

Full backup

Answer

Differential backup

Answer

Incremental backup

Question 25

What is the purpose of a differential backup, creating a point-in-time copy of changed data?

Accepted Answer

To provide a point-in-time copy of data that has changed since the last full backup

Answer

To provide a complete copy of the dataset

Answer

To provide a copy of the data that has changed since the last incremental backup

Question 26

Which type of data backup captures the entirety of an organization's data at a single point in time?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

Differential backup

Answer

Log backup

Question 27

Which backup method creates a backup containing only the data blocks and files that have changed since the last full backup?

Accepted Answer

Incremental backup

Answer

Full backup

Answer

Differential backup

Question 28

What is the primary advantage of employing a full backup strategy?

Accepted Answer

Provides a complete and reliable point of recovery in case of data loss or system failure.

Answer

Takes up less storage space compared to other backup methods.

Answer

Does not necessitate a full system shutdown during the backup process.

Answer

Can be executed more frequently than other backup methods.

Question 29

Which disadvantage is inherent to incremental backup strategies?

Accepted Answer

The restoration process can be slower in comparison to full backups.

Answer

Incremental backups are more vulnerable to data corruption.

Answer

Incremental backups require greater storage space than full backups.

Question 30

In which scenario is a differential backup strategy most appropriate?

Accepted Answer

When data changes occur frequently, but the overall dataset remains relatively stable.

Answer

When a quick and effortless recovery is required.

Answer

When data changes occur infrequently, and the entire dataset undergoes significant changes.

Question 31

Which potential risk is associated with using cloud-based data backup services?

Accepted Answer

Data breaches and malicious cyber attacks

Answer

Limited storage capacity and bandwidth constraints

Answer

Hardware failures and natural disasters

Answer

Complex configuration and management procedures

Question 32

What is the fundamental purpose of performing regular data backups?

Accepted Answer

To guarantee data recovery in the event of data loss or system failure.

Answer

To optimize system performance and minimize downtime.

Answer

To comply with legal and regulatory requirements.

Question 33

Which data backup method involves creating a complete copy of all data?

Accepted Answer

Full backup

Answer

Copy backup

Answer

Incremental backup

Answer

Differential backup

Question 34

Which backup type creates a new backup file each time, containing all data?

Accepted Answer

Full backup

Answer

Copy backup

Answer

Differential backup

Answer

Incremental backup

Question 35

For disaster recovery purposes, which backup type is typically employed?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

File-level backup

Answer

Differential backup

Question 36

Which best practice is recommended for effective data backup?

Accepted Answer

Implementing the 3-2-1 backup rule

Answer

Relying solely on free backup software

Answer

Maintaining all backups on a single hard drive

Answer

Storing backups in plain text format

Question 37

Which backup type is specifically designed to back up database systems?

Accepted Answer

Logical backup

Answer

Physical backup

Answer

File-level backup

Answer

Block-level backup

Question 38

Which type of data backup creates an independent copy of the entire data set?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

Differential backup

Question 39

What is a key advantage of incremental backups?

Accepted Answer

They are more efficient in terms of storage space and time required.

Answer

They provide a complete and independent copy of the dataset.

Answer

They can be restored faster than full backups.

Answer

They are less likely to fail due to data corruption.

Question 40

When selecting a backup strategy, which factor should be the primary consideration?

Accepted Answer

The criticality of the data being backed up

Answer

The budget for the backup solution

Answer

The speed of performing backups

Answer

The size of the dataset

Question 41

What is a key disadvantage associated with full backups?

Accepted Answer

They can be time-consuming and may require significant system resources.

Answer

They are less reliable than other types of backups.

Answer

They have a higher likelihood of data corruption during the backup process.

Answer

They can only be restored to the original backup location.

Question 42

Which data backup type is most suitable for continuously changing databases?

Accepted Answer

Incremental backup

Answer

Synthetic backup

Answer

Differential backup

Answer

Full backup

Question 43

Differentiate between a system restore point and a data backup.

Accepted Answer

A restore point captures a snapshot of the system, allowing rollback to a prior system state. A data backup involves copying data for retrieval in case of data loss.

Answer

Restore points are automatic, while backups require manual initiation.

Question 44

Which type of backup creates a complete copy of all data from the original source?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

Differential backup

Question 45

What is the key advantage of incremental backups over full backups?

Accepted Answer

Reduced storage space and backup time

Answer

Increased data security

Answer

Faster restoration

Question 46

In a differential backup, what data is included for backup?

Accepted Answer

Changes since the last full backup

Answer

Only critical data

Answer

Changes since the last backup of any type

Question 47

Which backup strategy is most suitable for environments with frequent data modifications?

Accepted Answer

Incremental backup

Answer

Log backup

Answer

Full backup

Answer

Differential backup

Question 48

What is a significant drawback of cloud backups compared to local backups?

Accepted Answer

Dependence on internet connectivity and potential security vulnerabilities

Answer

Higher expenses

Answer

Slower backup and restore speeds

Question 49

What is the primary function of a tape backup system?

Accepted Answer

Long-term data preservation and archival purposes

Answer

Real-time data protection

Answer

Data synchronization across multiple locations

Answer

Rapid data recovery

Question 50

What is a potential disadvantage of using a backup appliance?

Accepted Answer

Higher acquisition and maintenance costs

Answer

Centralized data storage

Answer

Reduced recovery timeframes

Answer

Simplified backup management

Question 51

What is the key difference between physical and virtual backup techniques?

Accepted Answer

Physical backups use physical storage media, while virtual backups utilize software to create digital copies of data

Answer

Physical backups are inherently faster than virtual backups