Telecommunications And Network Security
Table of Contents
Introduction
In today's interconnected global marketplace, effective communication and robust network security are paramount. The Telecommunications and Network Security domain is one of the ten domains of the Common Body of Knowledge (CBK) for the prestigious CISSP (Certified Information Systems Security Professional) Certification Exam. This domain encompasses network structures, transport formats, transmission methods, and security measures essential for maintaining the integrity, availability, authentication, and confidentiality of transmitted information across both public and private communication networks.
Key Areas of Knowledge
1. Establishing Secure Data Communications
Candidates must demonstrate a comprehensive understanding of secure data communications, including techniques for maintaining confidentiality, integrity, and availability of transmitted data.
2. Understanding Secure Network Architecture and Design
- Mastering the OSI and TCP/IP models
- IP networking fundamentals
3. Securing Network Components
- End-point security
- Filtering devices (e.g., firewalls, proxies)
- Hardware components (e.g., modems, switches, routers)
- Transmission media security
4. Establishing Secure Communication Channels
- Multimedia collaboration (e.g., remote meeting technology, instant messaging)
- Remote access security
- Virtual Private Networks (VPNs)
- Voice over IP (VoIP) security
5. Understanding Network Attacks
Candidates must develop a comprehensive understanding of various network attacks and their mitigation strategies.
Objectives and Expectations
According to the (ISC)² Candidate Information Bulletin, CISSP candidates are expected to demonstrate a deep understanding of communications and network security as it relates to:
- Data communications in Local Area Networks (LANs) and Wide Area Networks (WANs)
- Remote access security
- Internet, intranet, and extranet configurations
- Use of firewalls, network equipment, and protocols like TCP/IP
- Virtual Private Networks (VPNs)
- Techniques to prevent and detect network-based attacks
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