Port 445 is used by the SMB protocol on Windows systems. Large volumes of unexpected traffic on TCP 445 are commonly associated with worms that exploit SMB vulnerabilities (such as WannaCry or NotPetya).
Worms are self-replicating malware that spread rapidly across a network, consuming bandwidth, causing high latency, and often resulting in network outages. This matches the scenario given, where network unavailability and abnormal port 445 traffic are observed.
References:
CompTIA Security+ SY0-701 Official Study Guide, Domain 2.1, "Malware Types: Worms" CompTIA Security+ Exam Objectives: 2.1 CompTIA Glossary: "Worm-A self-replicating malware that spreads across networks, often exploiting vulnerabilities such as those in SMB (TCP 445)."

Baseline configuration is the process of standardizing the configuration settings for a system or network. In this scenario, the organization needs to standardize the operating system configurations before deploying them across the network. Establishing a baseline configuration ensures that all systems adhere to the organization's security policies and operational requirements.
References = CompTIA Security+ SY0-701 study materials, particularly in the domain of system hardening and configuration management.

Security Orchestration, Automation, and Response (SOAR) systems help organizations automate repetitive security tasks, reduce manual intervention, and improve the efficiency of security operations. By integrating with various security tools, SOAR can automatically respond to incidents, helping to enhance threat detection while reducing the manual workload on security analysts.
References = CompTIA Security+ SY0-701 study materials, particularly in the domain of security operations and automation technologies.

Job rotation is a strategy used in organizations to detect and prevent fraud by periodically assigning employees to different roles within the organization. This approach helps ensure that no single employee has exclusive control over a specific process or set of tasks for an extended period, thereby reducing the opportunity for fraudulent activities to go unnoticed. By rotating roles, organizations can uncover irregularities and discrepancies that might have been concealed by an employee who had prolonged access to sensitive functions. Job rotation also promotes cross-training, which can enhance the organization's overall resilience and flexibility.
References =
* CompTIA Security+ SY0-701 Course Content: Domain 05 Security Program Management and Oversight.
* CompTIA Security+ SY0-601 Study Guide: Chapter on Risk Management and Compliance.