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SANS

GIAC Security Essentials Certification (GSEC)

The GSEC certification by GIAC validates foundational knowledge in security essentials.

Exam code

GSEC

Official Prerequisites

  • 1-2 years hands-on experience in network or system administration
  • Foundational knowledge of TCP/IP, networking protocols, and the OSI model
  • Familiarity with Windows and Linux command-line administration
  • Recommended: prior foundational security certification such as CompTIA Security+ or equivalent
GIAC Security Essentials Certification (GSEC)

Targeted Professions

Security Analyst Network Administrator Incident Responder Systems Administrator

Domain blueprint

ExamBoot simulation engine is synchronized with official exam outline. Our adaptive question banks prioritize your reaching your objectives quickly..

Understand fundamental theory of access control and the role of passwords in managing access control.
Demonstrate understanding of securing containers and security features provided in macOS.
Understand basic concepts of cryptography, major cryptosystem types, and steganography.
Identify commonly used symmetric, asymmetric, and hashing cryptosystems and basic mathematical concepts behind them.
Understand the use, functionality, and operation of VPNs, GPG, and PKI.

Domain 5

Cryptography Application

Understand the use, functionality, and operation of VPNs, GPG, and PKI.

Domain 6

Data Loss Prevention and Mobile Device Security

Understand risks and impacts of data loss, prevention techniques, and mobile device security considerations.

Domain 7

Defense in Depth

Understand defense-in-depth principles and strategies for implementing layered security across an organization.

Domain 8

Defensible Network Architecture

Demonstrate how to architect networks to be monitored and controlled to resist intrusion.

Domain 9

Endpoint Security

Demonstrate basic understanding of endpoint security functions and devices (endpoint firewalls, HIDS, HIPS).

Domain 10

Enforcing Windows Security Policy

Understand features of Group Policy and use of INF security templates to enforce Windows security settings.

Domain 11

Incident Handling & Response

Understand incident handling concepts and processes for preparing for and responding to security incidents.

Domain 12

Linux Fundamentals

Demonstrate understanding of Linux OS structure, vulnerabilities, and permission models.

Domain 13

Linux Security and Hardening

Demonstrate ability to gain visibility into Linux systems and apply techniques to secure, audit, and harden them.

Domain 14

Log Management & SIEM

Understand importance of logging, log setup/configuration, and log analysis with SIEM tools.

Domain 15

Malicious Code & Exploit Mitigation

Understand common attack methods and defensive strategies to mitigate malware and exploitation.

Domain 16

Network Security Devices

Demonstrate basic understanding of network security device functions and uses (firewalls, NIDS, NIPS).

Domain 17

Networking & Protocols

Understand properties and functions of network protocols and protocol stacks.

Domain 18

Security Frameworks and CIS Controls

Understand purpose, implementation, and background of CIS Critical Controls, NIST CSF, and MITRE ATT&CK.

Domain 19

Virtualization and Cloud Security

Understand risks of virtualization and cloud services and basic measures to secure them.

Domain 20

Vulnerability Scanning and Penetration Testing

Understand concepts behind reconnaissance, resource protection, risks, threats, and vulnerabilities, including basic network mapping and penetration techniques.

Domain 21

Web Communication Security

Understand web application security and common vulnerabilities (CGI, cookies, SSL/TLS, active content).

Domain 22

Windows Access Controls

Understand how permissions are applied in NTFS, shared folders, printers, registry keys, Active Directory, and privilege application.

Domain 23

Windows as a Service

Understand how to manage updates and servicing for a network of Windows hosts.

Domain 24

Windows Automation, Auditing, and Forensics

Be introduced to techniques and technologies used to audit Windows hosts and perform basic forensic analysis.

Domain 25

Windows Security Infrastructure

Identify differences between Windows OS types and how Windows manages groups and accounts locally and via Active Directory and Group Policy.

Domain 26

Windows Services and Microsoft Cloud

Know basic measures to secure Windows network services (IPsec, IIS, RDS) and Microsoft Azure security features.

Domain 27

Wireless Network Security

Understand misconceptions, risks, and basic measures to secure wireless networks.

Study Tip

Use official blueprint alignment to map topics, complete timed blocks of practice tests, perform focused weak-area drills, and spend sessions reviewing rationales for missed questions to close knowledge gaps.

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