Which security measure is included in basic boundary security?

• A. Secure coding practices
• B. User training programs
• C. Firewalls and intrusion detection systems
• D. Regular software updates

Answer: (C)

Basic boundary security aims to protect the network perimeter from unauthorized access and potential threats. This security measure primarily involves technologies and practices that monitor and control incoming and outgoing network traffic based on predetermined security rules.

Firewalls serve as a primary defense mechanism by filtering traffic and blocking unauthorized access, thereby creating a barrier between a trusted internal network and untrusted external networks. Intrusion detection systems further enhance boundary security by monitoring network traffic for suspicious activities and alerting administrators about potential intrusions. Together, these tools form a critical line of defense, making them a fundamental aspect of boundary security.

In contrast, secure coding practices, user training programs, and regular software updates, while important components of an overall security strategy, do not specifically pertain to the boundary protection of a network. Secure coding practices focus on writing code that is resistant to vulnerabilities, user training addresses the human element of security, and software updates ensure that systems are patched against known vulnerabilities. However, none of these directly deal with securing the network boundary as effectively as firewalls and intrusion detection systems do.