Encryption concepts for personal and shared data
Exploring the math behind plain text conversions into cipher text via symmetric and asymmetric key structures.
Section 3
Topic 8: Data Protection, Encryption, and Backups
Full-disk, file, and message encryption basics
Hardening persistent storage against physical extraction, encrypting local file payloads, and applying end-to-end transport encryptions.
Backup types, schedules, and 3-2-1 rule
Implementing the classic 3-2-1 backup strategy: maintain at least 3 copies of data, across 2 distinct storage media types, with at least 1 copy isolated off-site. Read the Veeam 3-2-1 Data Backup Overview.
Safe restore practices and backup testing
Scheduling non-destructive simulation restores, verifying data layout integrity, and validating recovery speed goals.
Secure deletion and device disposal basics
Using cryptographic shredding processes, multi-pass storage overwrites, and physical destruction standards for old drives.
Knowledge Check
What exact configuration counts satisfy the core 3-2-1 backup rule strategy?
Maintaining 3 separate copies of data, stored on 2 different media types, with 1 copy situated off-site.
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