8. Explain the following terms as employed in security. (5 x 2 marks) i) Denial of Service (DoS) attack ii) Man in the middle attack iii) Brute force attack iv) DNS Hijacking v) IP Spoofing 9. Explain the difference between asymmetric and symmetric encryption. (5 marks) 10. What are the common threats faced by a web application? (10 marks) 11. Explain how you can make the user authentication process more secure. Identify at least three possible solutions. (10 marks) 12. Explain how you can secure a freshly installed Web Server before deploying your web application. (10 marks)