CSA Backup and Disaster Recovery

Question 1

What is the primary purpose of a backup in system administration?

Accepted Answer

Answer

The primary purpose of a backup in system administration is to create duplicate copies of important data, applications, and system configurations. These copies serve as a safeguard against data loss due to hardware failure, accidental deletion, cyberattacks, or natural disasters. In the event of such a failure, the backup allows for the restoration of the system and its data to a previous functional state, ensuring business continuity.

Question 2

Which of the following is a type of backup method?

Accepted Answer

Answer

In system administration, common backup methods include full, incremental, and differential backups. A full backup copies all selected data, while an incremental backup only copies data that has changed since the last backup of any type. A differential backup copies all data that has changed since the *last full backup*. These methods offer different balances of storage space, backup time, and restoration complexity.

Question 3

What is a disaster recovery plan?

Accepted Answer

Answer

A disaster recovery plan (DRP) is a comprehensive, documented strategy for an organization to recover from a catastrophic event and resume normal operations. It outlines the procedures, resources, and responsibilities required to restore critical IT infrastructure, applications, and data. The primary goal of a DRP is to minimize downtime and data loss, ensuring business continuity in the face of unforeseen disasters.

Question 4

What is the purpose of offsite backups?

Accepted Answer

Answer

Offsite backups involve storing copies of data at a geographical location separate from the primary data center. The main purpose of this strategy is to protect against data loss caused by localized disasters, such as fires, floods, or earthquakes, that could destroy both the primary data and onsite backups. By having data stored remotely, an organization can ensure its critical information survives even if the main facility is completely compromised.

Question 5

Why is it important to test backup systems regularly?

Accepted Answer

Answer

Regular testing of backup systems is crucial to verify that data can be successfully restored when needed. A backup is only valuable if it is recoverable, and without testing, there's no guarantee that the backup process is working correctly or that the data itself is intact and usable. Testing helps identify potential issues with backup media, software, or procedures before a real disaster strikes, ensuring reliable data recovery.

(CSA) Certified System Administrator Practice Test

(CSA) Certified System Administrator Practice Test

CSA Backup and Disaster Recovery