https://www.udemy.com/course/fundamentals-of-network-security-b/?couponCode=F2D4267EBA6F97A338D8

Description:

Module 1: In this Module you Understand the Concept of Network Security and types of the Network. Module 2: In this Module you understand about Types of layer in OSI Model such as application layer, data link layer etc. Module 3: In this module you understand about the Types of network attack, which harm the computer and network system also Module 4: in this Module you Understand about the Network Protection.

https://www.udemy.com/course/fundamentals-of-network-security-b/?couponCode=F2D4267EBA6F97A338D8