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Information System-<@ err ears ACH RCT atat ear | Part C: Electrical and Electronic Technology BFE 3¢ DDL CTC BAR etceia Baa fra: @ ST FET Pare nea en wae eA MCAT Te aT a | ceofB fouma 71130 Kirchhoff’s Voltage Law a4at #5 | ® 1c 2 Digital 10-02 TACT FCC Boer I | AD ACs DC corer 305 one ret oO Bret FheIe re RCT aefaT aE | ‘Carp for Berets aie meee eat a | TS GRR CCETE ae BREET ATES on BOE | (@) eb EE Gor Bere re ca foo MICH ROR ATT I | Re Re ae ae we Re xe Qe Ae ae ae ae ae ae Xe xe ae xe ae re xe@) b) ©) (a) ) (©) @) ) f@) (b) © (a) (b) (©) fa) (b) © (@) (b) (a) (b) © (a) (b) © Subject Code: 010 wer Time: 3 hours Total Marks: 100 [Figures in the in indicate full m Part Az General Science Marks: 60 (Answer any cight of the following questions.) Marks: What are the differences between antibioties and antibodies Z Write down the characteristics of contaminated and potable water, 2 What is Pasteurization? Why does milk kept at room temperature still get spoilt after 1,5+273.5 Pasteurization? Write the chemical structure of chromosome. 2 Why is fast food harmful to human health? 2 Discuss the significance of biotechnology in the development of agriculture. 3.5 ‘What kind of test is done to ensure paternity? 2 Which family of virus does SARS-CoV-2 belong to? Which organ of human body is first 5.5 and most affected by this virus and why? What steps should we take to prevent transmission of this virus? Define acid and base. 2 Write down the names of three weak and three strong acids. 3 Define vinegar and give its chemical structure. Why are pickles processed with vinegar? 5 Define scalar and vector quantities. What is noise pollution? What are its harmful effects? ‘What are the applications of beats? What are BOD and TDS of water? Define LDL and HDL. Mention their function in human body. 1H2=. What is Rh factor of blood? Why is it important? 5 What is refraction of light? Write down the rules of refraction of light, 3 Describe the mechanism of human hearing, Discuss the importance of renewable energy. Mention the importance of biodiversity conservation, ‘i Discuss the role of zinc-rich foods in human body. 3 5 5 4 Discuss the causes of soil acidity. 4 2 5 2 Pace sany fat soluble vitamins are there? Name them. Discuss the importance of these 4 vitamins for human body. Why are all enzymes not called proteins in modern biological science? Justify with examples. 1.5 [Please turn over]10, ML Answer any t w «) w) w w 0 (k) (m) formation Technology »puter and 1 Marks: 25 Part Br Co fen of the following questions: Processing, Unit (CPU)? Describe the different parts What are the main functions of Cen ofa CPU with a suitable diagram, What are the uses of cache memory in a computer system? Write down the differences between compiler and interpreter What do you understand by software? Briefly deseribe system software and application sotiware with examples. 1 Oriented Programming language? Give examples of guages What do you understand by Software Requirement Specification (SRS)? In which step is the SRS developed during a sofiware development proce: between Open Source and Proprietary Software? Give ¢ and one Proprietary Operating System. What are the main features of Obj two Object Oriented Programming, What are the main differ examples of one Open Sou What is meant by Database Management System (DBMS)? Briefly describe the role of primary key and foreign key in Relational Database with a suitable example. Write down the name of different layers of TCP/IP Protocol Suite. What is HTTPS? Briefly describe the importance of the use of HTTPS. www.prebd.com Briefly describe 'Bangabandhu-I Satellite’. Write down the differences between E-Commerce and F-Commerce. Briefly describe the impact of F-Commerce, run by female entrepreneurs, on our society. What What is meant by WiFi access point? Write down the differences between a router and switch. What is an information system? Briefly describe the necessary steps to protect an information system. is meant by malware? Briefly describe with examples. Part C: Electrical and Electronic Technology Marks: 15 Answer any six of the following questions: (a) (b) (©) @ (©) @ @ (hy Write down the main differences between analog and digital signals, Briefly explain the relation between wave length and wave frequency. Describe Kirchhoff's Voltage Law with a suitable diagram, What is an IC? Briefly mention the uses of digital IC. Write down the differences between AC voltage and DC voltage. Briefly describe how a radar works. Briefly describe the working principle of an electrical transformer. Write down the differences between radio wave and microwave. Briefly describe the working principle ofa circuit breaker with a suitable diagram. Marks 2.5 2.5 25 25 25 25 2.5 25 25 2.5 25 25 25 2.5 2.5 25 25 25 25 25 25