Computer Fundamentals

Daffodil International University Faculty of Science & Information Technology Department of Information Technology & Management Final Examination, Fall 2024 Course Code: ITM 111; Course Title: Computer Fundamentals Sections & Teachers: MA Time: 2:00 Hrs Marks: 40 Answer ALL Questions [The figures in the right margin indicate the full marks. All portions of each question must be answered sequentially.] 1. a) What's the purpose of writing comments, main function and header files in a C program? Mention 2 different techniques for writing comments in C. [Marks-5] b) Perform the following conversions: (137246)8 = (?)10 = (?)2 = (?)16 [Marks-5] 2. a) Explain how the P2P network works. Differentiate between P2P network and client server network. [Marks-5] b) Suppose you are told to build a fault tolerant network system. You are given two options- mesh topology and ring topology. Which topology will you choose? Justify your answer. [Marks-5] 3. a) Define a utility program with an example. Differentiate between GUI and CLI based operating systems. [Marks-5] b) What is an operating system? Define the following terms: Kernel program, transient program, throughput, turnaround time. [Marks-5] 4. a) Describe 3 main security principles with real life examples. How can you ensure availability for your computer network system? [Marks-5] b) Define encryption in your own words. Differentiate between symmetric key and asymmetric key encryption. [Marks-5]