Network Security
1.What is the difference between a host and an end system? List several different types of end systems. Is a Web server an end system? 25 pts
2.Why are standards important for protocols? 25 pts
3.Suppose Alice and Bob are sending packets to each other over a computer network. Suppose Trudy positions herself in the network so that she can capture all the packets sent by Alice and send whatever she wants to Bob; she can also capture all the packets sent by Bob and send whatever she wants to Alice. List some of the malicious things Trudy can do from this position. 25 pts
4.What is the difference between network architecture and application architecture? 25 pts
Solution Preview
Notably, there is no relative difference between the host and an end system. Within the internet, all devices are commonly referred to both as a host or an end system. As such, the names hosts and end systems are used conversely. Some of the common types of end systems include workstations, PCs, web servers, PDAs, email servers, TVs, Tablets and Cell phones (Stallings, 2017). Besides, the host system refers to any form of computer network that provides services to other users or systems (Stallings, 2017). Often, the host systems operate as a multi-user operating system.
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