GIAC Security Essentials (GSEC)
GSEC validates that a practitioner has hands-on, practical security knowledge — not just terminology. It spans cryptography fundamentals, defense-in-depth, incident handling, network security, security policy, web communication security, and Windows/Linux security. This simulator mixes single- and multiple-response questions with a per-domain scored report.
Ready to sit the mock exam?
The timer starts as soon as you begin. You can flag questions, move freely between them, and review everything before submitting. No sign-in required — sign in afterwards to save the result to your history.
Start GSEC examSkills measured
Cryptography
15%Symmetric/asymmetric encryption, hashing, PKI, and applied cryptography concepts.
Defense in Depth
15%Layered security controls, access control models, and security frameworks.
Incident Handling and Response
15%The incident handling process, from preparation through lessons learned.
Network Security
20%Network device security, protocols, segmentation, and common network attacks.
Security Policy
10%Developing and applying security policy, and contingency planning.
Web Communication Security
10%TLS, web application vulnerabilities, and securing web-based communication.
Windows and Linux Security
15%OS hardening, logging, and security tooling on Windows and Linux.