Write a structured C program with an algorithm to Swap two numbers using third variables and execute the code on the code blocks. (5 marks) ii) Create an executable structured code to delete an element between two items. (5 marks) b) Discuss THREE basic primary operations of a Graph. (6 marks) c) Define the following terms: i) Queue (2 marks) ii) State and explain THREE time complexities (3 marks) iii) Below is call the function findIndex with array and number to be searched.

Q1. a) Define the following terms as used in Ethical Hacking (5 Marks) i. Hacking ii. Ethical Hacking iii. Ping Sweep iv. Inverse TCP Flag Scanning v. Footprinting b) What is the overall purpose of the footprinting and reconnaissance and list the major objectives of this phase (5 Marks) c) List any three skills that a good ethical hacker should possess (3 Marks) d) List and Explain the Vulnerability Score system as applicable in Ethical Hacking (4 Marks)

Q1. a) The Software Development Life Cycle (SDLC) is a process used to design, develop, test, and maintain software applications. It consists of several stages including planning, analysis, design, development, testing, deployment, and maintenance. During each stage, the development team performs various activities such as gathering requirements, creating a design, coding, testing, and documenting the software. b) Two important documents in software engineering process are: Software Requirements Specification (SRS): It is a document that captures the requirements for a software application. It includes details such as user requirements, functional requirements, performance requirements, and other specifications. Software Design Document (SDD): It is a document that describes the architecture, design, and implementation details of a software application. It includes details such as system architecture, data flow, user interface design, and other technical specifications.

Q1a. Explain any TWO advantages of sketching a proposed user interface as opposed to using a drawing program or building a prototype. (4 Marks) A: Two advantages of sketching a proposed user interface are that it is quick and inexpensive. Sketching allows for easy ideation and exploration of different design options without the need for specialized software or technical skills. It also provides an opportunity to get feedback early in the design process, helping to identify and address potential issues before investing significant resources in building a prototype.

This course is an introduction to the fundamentals of human-computer interaction, user interface design, and usability analysis. Students will learn principles and guidelines for usability, quantitative and qualitative analysis methods, and apply them through critiques of existing interfaces and development of new ones. Topics covered will also include cognitive models, task analysis, psychology, experimental design, and prototyping and evaluating methods.