2. Security attack is defined by any action that compromises the security of information. Security attack can be categorized as passive attack and active attack. Describe these passive attack and active attack in detail; and provide one example of each attack. (8 marks) 3. Encryption has been trusted by many to enforce security in many fields. The placement of encryption is also vital to the success of this enforcement. List the TWO (2) major placements for encryption. (2 marks) 4. In IPSec service, a security association is a one way relationship between a sender and a receiver. The security association is identified by three parameters. Describe in detail these THREE (3) parameters. (6 marks) 5. Based on SEED lab Cross-Site Request Forgery Attack using http Get method, write the html code necessary to execute the attack assume attacker ID is 42, moreover clarify what is the necessary conditions is the victim side for the attack to run successfully. (9 marks) 6. Explain the TWO (2) main reasons why Public-Key cryptography was developed. (4 marks) 7. Kerberos provides a centralized authentication server to authenticate users to servers and servers to users. In version 5, Kerberos can be used in multiple realms. Describe the THREE (3) requirements for multiple Kerberi. (6 marks)