Name: Enrolment No: UNIVERSITY OF PETROLEUM & ENERGY STUDIES Mid Semester Examination (Online) Sep-Oct, 2021 Program: BBA (Core) XXXXXXXXXXSemester: I Subject/Course: Business-Computing XXXXXXXXXXMax....

PFA


Name: Enrolment No: UNIVERSITY OF PETROLEUM & ENERGY STUDIES Mid Semester Examination (Online) Sep-Oct, 2021 Program: BBA (Core) Semester: I Subject/Course: Business-Computing Max. Marks: 50 Course Code: DSIT1001 Duration: 2 Hours IMPORTANT INSTRUCTIONS 1. The student must write his/her name and enrolment no. in the space designated above. 2. The questions have to be answered in this MS Word document. 3. After attempting the questions in this document, the student has to upload this MS Word document on Blackboard. Q.No Marks COs 1 You are developing control software for a car whose latest model will have a network connection. Software upgrades will be delivered over the air rather than at service visits, so that any security vulnerabilities can be patched quickly. This in turn means that you will have to provide patches, to deal with both security and safety issues for the next 25 years. Discuss how this is likely to affect your development process, and the implications it will have for costs 10 CO1 2 Give a simplified schematic of a PC showing the main CPU, its support chips, and bus interface. 10 CO2 3 A software company holds many sensitive data about its clients. (a) It currently requires employees to enter a username and a password to login to an account. Each password must be 8 letters. The company wants to increase the security of the login system. Identify two improvements the company could use to make the login system more secure. Explain how each improvement increases security. The software company wants to purchase a new file server. The company can purchase a server with either solid-state storage or magnetic storage. After discussion, it decides to purchase a file server with magnetic storage. Explain why the company chose magnetic storage rather than solid-state storage. 10 CO2 4 If the software were safety-critical, such as the control software for a car’s anti-lock braking system (ABS), which other processes might be added? 10 CO3 5 Implement the following in Microsoft Excel (Add the Snapshots of Implementation done in MS Excel ): (a) Display negative numbers in parenthesis (b) Extract the numbers from a cell containing numbers and letters. 10 CO4 ANSWERS