(a) Explain the THREE (3) security principles in computer and networking system. [6 marks] ((d) Suppose a web server contains a function as below in a buffer overflow attack situation. Review and comment the functions regarding how buffer overflow attack can be exploited. void func(char*str) { char buf[128]; strcpy (buf, str); do-something (buf); } [6 marks] Ulearn is a learning management system developed by UTeM for the administration, student, documentation, tracking, reporting and delivery of electronic educational technology called e-learning courses. Briefly discuss the security services that can be implemented to the Ulearn application. [7 marks] Compare between dumb and smart fuzz testing. Give a simple example demonstrating the two approaches.