Section 1
General security concepts
Preview
Preview: General security concepts
- 4 of 20 lesson topics
- 1 overview segment
- 3 core concepts
- 2 exam tips
Lesson Topics
- General security concepts (1.1)
- General security concepts (1.2)
- General security concepts (1.3)
- General security concepts (1.4)
Overview
This section establishes foundational security principles essential for understanding more advanced topics. It covers core concepts like the CIA triad, security controls, change management, and Public Key Infrastructure (PKI). A strong grasp of these basics is critical for correctly interpreting scenario-based questions throughout the exam.
Core Concepts
- **CIA Triad:** Confidentiality, Integrity, and Availability. Integrity focuses on preventing unauthorized modification of data. Understanding the difference between these three principles is crucial for correctly identifying the security principle being violated in a scenario.
- **Security Controls:** Categorized as preventative (e.g., firewalls), detective (e.g., intrusion detection systems), and corrective (e.g., incident response plans). The exam often tests your ability to match a scenario with the appropriate control type.
- **Change Management:** A structured process for implementing changes to systems and infrastructure. Security impact analysis is a critical step to assess potential security risks before implementing changes.
Exam Tips
- Read scenario questions carefully and identify the *specific* problem being described. Don't jump to conclusions.
- When faced with multiple choices, eliminate options that are clearly incorrect or irrelevant.