Network Traffic Monitoring and Threat Notification

D.

An intrusion detection system (IDS) is designed to analyze network packets, compare their contents or characteristics against a set of configurations or signatures, and alert personnel if anything is detected that could constitute a threat or is otherwise designated for alerting.

The technology used to monitor network traffic and identify any potential threats or attacks is called an Intrusion Detection System (IDS). Therefore, the correct answer is D.

An IDS is a security tool that scans network traffic and system logs to detect and alert on potential security incidents. It analyzes network traffic and system activity looking for signs of malicious activity, such as known attack patterns, unauthorized access, and abnormal behavior. It can also be configured to monitor specific types of traffic or events.

An IDS can operate in two modes: signature-based and anomaly-based. Signature-based IDS uses pre-defined signatures or patterns to detect known attacks. It works by comparing network traffic against a database of known attack signatures. If it detects a match, it triggers an alert. On the other hand, anomaly-based IDS works by establishing a baseline of normal network activity and behavior. It then identifies and alerts on any traffic or activity that deviates from that baseline.

An IDS works alongside other security technologies like firewalls and intrusion prevention systems (IPS). While a firewall filters traffic based on predefined rules, an IDS monitors traffic and alerts administrators of suspicious behavior that may not be detected by a firewall. IPS, on the other hand, not only detects threats but also takes action to block or prevent them.

In summary, an IDS is a security technology used to monitor network traffic and identify potential security incidents. It can operate in two modes: signature-based and anomaly-based. It works alongside other security technologies like firewalls and IPS.