Database Backup and Recovery: Essential Concepts and Techniques

Question 1

Which recovery technique allows for the restoration of a database to a specific point in time?

Accepted Answer

Point-in-time recovery

Answer

Disaster recovery

Answer

Incremental recovery

Answer

Differential recovery

Question 2

What is the primary goal of disaster recovery in the context of database management?

Accepted Answer

To minimize data loss and restore critical operations in the event of a major incident

Answer

To protect against unauthorized access and data corruption

Answer

To ensure data integrity and consistency during routine operations

Answer

To optimize database performance and scalability

Question 3

What is the purpose of a recovery point objective (RPO)?

Accepted Answer

To define the maximum acceptable amount of data loss in the event of a disaster

Answer

To estimate the time required to restore a database to a usable state

Answer

To ensure that all critical data is backed up regularly

Answer

To optimize database performance

Question 4

Which type of backup creates a copy of the entire database?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

Differential backup

Answer

Logical backup

Question 5

What is the purpose of point-in-time recovery?

Accepted Answer

To restore the database to a specific moment in time

Answer

To recover the entire database after a failure

Answer

To synchronize multiple copies of the database

Answer

To create a backup of the database

Question 6

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

Accepted Answer

In a hot backup, the database is running, while a cold backup requires the database to be shut down

Answer

In a cold backup, the database is running, while a hot backup requires the database to be shut down

Answer

Both hot and cold backups require the database to be shut down

Answer

There is no difference between a hot backup and a cold backup

Question 7

Which of the following is not a benefit of using a recovery log?

Accepted Answer

Enhanced database performance

Answer

Faster recovery times

Answer

Reduced data loss

Answer

Improved data integrity

Question 8

What is the primary purpose of a disaster recovery plan?

Accepted Answer

To guide recovery efforts in case of a major incident

Answer

To ensure rapid database restoration after a failure

Answer

To safeguard database security

Answer

To optimize database performance

Question 9

Which of the following backup methods involves incremental updates?

Accepted Answer

Incremental backup

Answer

Full backup

Answer

Differential backup

Answer

Log-based backup

Question 10

What is the distinction between database restore and database recovery?

Accepted Answer

Restore involves recovering from a backup, while recovery is for failures

Answer

Recovery involves recovering from a backup, while restore is for failures

Answer

There is no distinction between restore and recovery

Answer

Restore creates backups and recovery recovers from failures

Question 11

Which of the following are advantages of using incremental backups?

Accepted Answer

They are faster than full backups.

Accepted Answer

They require less storage space than full backups.

Answer

They can be used to recover data from a specific point in time.

Question 12

What is the major consequence of failing to perform regular database backups?

Accepted Answer

Data loss and corruption

Answer

Reduced system performance

Answer

Increased storage costs

Answer

Enhanced data security

Question 13

Which backup type captures the changes made to the database since the last full or incremental backup?

Accepted Answer

Incremental backup

Answer

Full backup

Answer

Differential backup

Question 14

Which backup type captures an entire database at a specific time?

Accepted Answer

Full backup

Answer

Incremental backup

Answer

Differential backup

Question 15

Select the recovery technique to restore data to a past point without impacting later transactions.

Accepted Answer

Point-in-time recovery

Answer

Disaster recovery

Answer

Log shipping

Question 16

Identify the primary goal of an incremental backup strategy.

Accepted Answer

Capture modifications since the last full backup

Answer

Minimize backup time and storage space

Answer

Restore the database to a prior state

Question 17

Which of the following is a primary advantage of utilizing point-in-time recovery in database management?

Accepted Answer

Enables restoration of the database to a specific moment in time

Answer

Considerably faster than alternative recovery methods

Answer

Does not necessitate a comprehensive database backup

Answer

Exclusively capable of recovering data from a corrupted database

Question 18

Which option is NOT a recognized type of database backup?

Accepted Answer

Cumulative

Answer

Full

Answer

Incremental

Answer

Differential

Question 19

Which recovery technique is specifically designed to restore a database to a specific point in time?

Accepted Answer

Point-in-time recovery

Answer

Disaster recovery

Answer

Incremental recovery

Answer

Differential recovery

Question 20

What is the primary objective of disaster recovery in a database context?

Accepted Answer

Restoring a database to a functional state after a significant system failure or natural disaster.

Answer

Recovering individual records that have been inadvertently deleted.

Answer

Preventing data breaches and cyberattacks.

Answer

Optimizing database performance.

Question 21

Which factor is NOT typically considered when determining an appropriate backup strategy?

Accepted Answer

The number of database administrators.

Answer

The size of the database.

Answer

The recovery time objectives.

Answer

The database's availability requirements.

Question 22

What is the primary difference between a cold backup and a hot backup in a database context?

Accepted Answer

Cold backups are performed while the database is offline, while hot backups are performed while the database is online.

Answer

Hot backups are performed while the database is offline, while cold backups are performed while the database is online.

Answer

Cold backups offer greater reliability than hot backups.

Answer

Hot backups are generally faster to perform than cold backups.

Question 23

What is the primary goal of a comprehensive database backup and recovery plan?

Accepted Answer

Ensuring the availability and integrity of data in the event of system failures or data loss.

Answer

Preventing data breaches and cyberattacks.

Answer

Improving the performance of database systems.

Answer

Minimizing the costs associated with data storage.