Episode 72 — Encryption Paradigms — Securing Data at Rest and in Transit

Certified - CompTIA Server+ Audio Course

This episode explains how encryption protects data both while stored and while transmitted across networks. We detail the principles behind symmetric and asymmetric encryption, discuss common algorithms, and explore when each approach is most effective. For data at rest, we review disk-level, file-level, and database encryption, while for data in transit, we cover protocols such as TLS, SSH, and IPsec.

We then explore exam-relevant and real-world applications, such as encrypting backup archives to meet compliance requirements or securing remote administrative sessions with encrypted tunnels. Troubleshooting examples include resolving certificate trust issues and addressing performance impacts of encryption. Understanding these paradigms enables candidates to design and maintain secure data-handling processes in alignment with Server+ best practices. Produced by BareMetalCyber.com, where you’ll find more cyber prepcasts, books, and information to strengthen your certification path.