Data backup and recovery is a critical process that ensures the availability of computer data in the event of loss, damage, or unavailability. This process is essential to supporting the Availability pillar of the CIA Triad (Confidentiality, Integrity, and Availability) and is a key component of Business Continuity and Disaster Recovery planning. In this article, we will explore the different types of backups, including full, differential, incremental, synthetic full, continuous, and bare metal backups. We will also discuss the importance of developing a Business Continuity Plan (BCP) and Disaster Recovery Plan (DRP) that includes detailed data backup and recovery processes and procedures. By understanding the different types of backups and how to implement them, organizations can ensure the availability of their data and minimize the risk of data loss.
Lab Questions and Answers: 1.1 Core Concepts
1. Data backup and recovery refers to:
A. Archiving data in a data warehouse.
B. Recovering data from a damaged hard drive.
C. Storing copies of data at multiple locations for the purpose of improving performance.
D. Creating copies of computer data for the purpose of restoring the original data.
Answer: D
2. Data backups are critical to:
(select all that apply)
A. Confidentiality
B. Integrity
C. Availability
D. Business Continuity
E. Disaster Recovery
Answer: C, D, E
3. If you need to migrate from physical hardware to virtual or cloud-based images, which type of backup should you use?
A. Full
B. Differential
C. Incremental
D. Synthetic full
E. Continuous
F. Bare metal
Answer: F
4. If data is backed up fully every Friday night, and there is a differential backup Monday night through Thursday night, what backups are applied if there is data loss on Wednesday?
A. Friday’s full backup, plus the differential backups from Monday to Wednesday
B. Friday’s full backup, plus the differential backup from Tuesday
C. The differential backups from Monday and Tuesday
D. Friday’s full backup, plus the differential backups from Monday and Tuesday
Answer: B