CyberOps Associate 200-201 Book

Network Address Translation (NAT) is the technology that allows a single IP address to send and receive traffic for multiple devices by modifying the IP header. NAT remaps one IP address space into another, enabling multiple devices to use a single public IP address to send and receive packets through the Internet2.

References := The concept of NAT and its role in network traffic management is detailed in networking resources and documentation, including those provided by network solution providers2.

A threat is a possible danger that might exploit a vulnerability to breach the security and cause harm to an asset. An asset is anything of value that needs to be protected, such as data, systems, or networks. A vulnerability is a weakness or flaw in the security that can be exploited by a threat. An exploit is a piece of code or a technique that takes advantage of a vulnerability to compromise the security and perform malicious actions on an asset. References := Cisco Cybersecurity Operations Fundamentals, Module 1: Security Concepts, Lesson 1.1: The CIA Triad and Security Concepts, Topic 1.1.3: Threats, Vulnerabilities, and Exploits

NIST Special Publication 800-61 r2 outlines the incident response process including detection and analysis, which involves identifying and validating the occurrence of incidents, and post-incident activity that focuses on lessons learned and improvements to be made after an incident has occurred. References := NIST Special Publication 800-61 r2

The -sP option in Nmap is used for host discovery without port scanning, which helps in identifying live hosts without triggering portscan alerts on IDS devices. It sends an ICMP echo request, a TCP SYN packet to port 443, a TCP ACK packet to port 80, and an ICMP timestamp request to each target IP address and waits for a response. Any responses are considered as indications of a live host. References := Cisco Cybersecurity Operations Fundamentals - Module 5: Endpoint Threat Analysis and Computer Forensics