Answer to Question #276196 in Computer Networks for Eulanda

Question

    

Q.1.5 Discuss why is it important to have security in the following Network protocols:  

Link Layer;  

Network layer;  

Transport layer.  

  

Answer 1

Link layer encryption provides protection against all kinds of “man-in-the middle” attacks, where unencrypted data streams can be intercepted and corrupted or monitored by malicious outsiders. So link layer should be secured to provide a convenient way to ensure security regardless of what their subscribers do.

Network layer security is important for homes that have networks and business people like cyber businesses. Wireless routers can be exploited if not properly secured. A solid network security system helps reduce the risk of data loss, theft and sabotage.

Transport layer security is important as it is designed to facilitate privacy and data security for communications over the Internet. This can be done by encrypting the communication between web applications and servers, such as web browsers loading a website.