Question 1: (25 marks) During your study of T215B, you have been introduced to a set of concepts, protocols and threats to network security. Using your own words, write a summary about network...

Question 1: During your study of T215B, you have been introduced to a set of concepts,

Extracted text: Question 1: (25 marks) During your study of T215B, you have been introduced to a set of concepts, protocols and threats to network security. Using your own words, write a summary about network security explaining the following factors: a. Explain the basic idea about IPsec protocol, its aim and disadvantages.(9 marks) b. Do a comparison between Caesar cipher using diagraph coding and Vigenère Cipher in terms of their operation and level of security (8 marks). c. Explain the Message Digest Algorithm 5 (MD5) and describe briefly its operation. (8 marks) 11:36 PM