The correct answer is A - Intrusion detection system (IDS).
As outlined in WGU Cybersecurity Architecture and Engineering (KFO1 / D488), an IDS helps monitor network traffic for suspicious activities and security threats, making it a fundamental component of securing a network for a start-up. It enables early detection of attacks, contributing both to cybersecurity defense and incident response efforts.
Packet filtering (B) is a limited firewall technique and not as comprehensive. Bootstrapping (C) is a startup or initialization process, not a security measure. VPN (D) secures remote access but does not inherently monitor for threats.
Reference Extract from Study Guide:
"An intrusion detection system (IDS) monitors network traffic for suspicious activity and potential threats, enhancing a network's security posture and supporting incident detection."
- WGU Cybersecurity Architecture and Engineering (KFO1 / D488), Network Security Monitoring and Defense Here are your fully verified and properly formatted answers for this final batch, based on WGU Cybersecurity Architecture and Engineering (KFO1 / D488) official materials: