Assets, Threats, and Vulnerabilities

  The role of security analysts involves monitoring and analyzing network traffic flows. One way to do this is by generating packet captures and then analyzing the captured traffic to identify unusual activity on a network. Previously, you explored the fundamentals of networks. Throughout this section, you’ll refer to your foundation in networking to better understand network traffic flows. In this reading, you'll learn about the three main aspects of network analysis: packets, network protocol analyzers, and packet captures. Packets Previously in the program, you learned that a data packet is a basic unit of information that travels from one device to another within a network. Detecting network intrusions begins at the packet level. That's because packets form the basis of information exchange over a network. Each time you perform an activity on the internet—like visiting a website—packets are sent and received between your computer and the website’s server. These packets are...