A host-based firewall is a utility that can block unauthorized access to a computer system, including port scans. It monitors incoming and outgoing network traffic and permits or blocks data packets based on a set of security rules.

Traffic fragmentation is an evasion technique where an attacker splits malicious payloads into smaller packets. This can help avoid detection since some security systems may not reassemble these packets to inspect the complete payload.

When a company workstation is compromised, the stakeholders that must be involved are the ones who are responsible for the security incident response process. According to the table, these are Employee 4 (Security Operation Center Analyst), Employee 6 (Head of Network and Security Infrastructure Services), and Employee 7 (Technical Director). The other employees have different roles that are not directly related to the incident response process, such as accounting, financial management, or system administration. References := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 1: Security Concepts, Lesson 1.4: Security Monitoring, Topic 1.4.1: Security Operations Center