Summary
Having completed this chapter, you have learned about the need for a protocol suite on computer networks and the internet. Furthermore, you saw how a message such as a raw datagram is encapsulated with various header information, such as source and destination details, as it is created by an application protocol and passed down to the physical network. Understanding the operations of each network layer will further help you understand various types of vulnerabilities and cyber-attacks in the later chapters of this book.
I hope this chapter has been informative for you and is helpful in the journey toward learning the foundations of cybersecurity operations and gaining your Cisco Certified CyberOps Associate certification.
In the next chapter, Chapter 2, Exploring Network Components and Security Systems, you will learn how to get started with using a cybersecurity approach to secure your assets.
