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.

Q1. a) Identify and explain the FIVE components of a data communications system. (5 Marks) b) Name the FOUR basic network topologies, and cite an advantage of each type. (8 Marks) c) Differentiate between half-duplex and full-duplex transmission modes.(2 Marks) d) Using a well labeled diagram, discuss the Internet model. Note: Your answer should include the names of all the layers, the functions of each layer and at least TWO protocols implemented at each layer. (15 Marks) Q2. a) Name any TWO services provided by the application layer in the Internet model. (2 Marks) b) The terms listed below are associated with electronic signals in data communications: i) Period ii) Frequency iii) phase i) With the help of a diagram, explain what the above terms refer to (3 Marks) ii) What does each of the above measure? (3 Marks)

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.

a) Define the following terms explaining their meaning i) Business Intelligence [2 marks] ii) Data Warehouse [2 marks] iii) Data Mining [2 marks] iv) Decision Tree [2 marks] v) Web Mining [2 marks] b) Using appropriate diagrams, describe the Business Intelligence data processing chain. [6 marks] c) What are the key elements of a data warehouse? Describe each. [8 Marks]

Download Question and Answer paper CMT 445 for your revision purpose . Which of the following statement is true about Business Intelligence? A. BI convert raw data into meaningful information B. BI has a direct impact on organization's strategic, tactical and operational business decisions. C. BI tools perform data analysis and create reports, summaries, dashboards, maps, graphs, and charts D. All of the above

Provide an explanation of each of below; i) Business Intelligence [2 marks] ii) By giving example explain what is business knowledge [2 marks] iii) Decision Support System(DSS) [2 marks] b) The logistics manager of a manufacturing company wishes to develop a medium-term logistic-production plan. This is a decision-making process of high complexity which includes, among other choices, the allocation of the demand originating from different market areas to the production sites, the procurement of raw materials and purchased parts from suppliers, the production planning of the plants and the distribution of end products to market areas. Describe three benefits of using that the logistics manager will get in using BI tools. [6 marks]

Q1. a) Define the following terms used in business intelligence: i. Business intelligence: Business intelligence (BI) refers to technologies, applications, and practices for the collection, integration, analysis, and presentation of business information. It enables organizations to make informed business decisions [1]. ii. Data warehouse: A data warehouse is a large, centralized repository of data that is used for reporting and data analysis. It is designed to support business intelligence activities and decision-making processes [1]. iii. Data mart: A data mart is a subset of a data warehouse that is tailored to the needs of a specific department or group within an organization. It contains data relevant to a particular subject area or business process [1]. iv. Knowledge discovery: Knowledge discovery in data mining is the process of exploring and analyzing large amounts of data to discover significant patterns, rules, and insights. It helps in finding knowledge from raw, unprocessed data [15].