I1100 E Introduction to computer.
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1 Université Libanaise Faculty of Sciences I 1 st Session I1100 E Introduction to computer. Final 2017/2018 Duration : 2 h Problem 1 Multiple Choices Questions 25 points Question 1. The Operating System is a : A. System Software B. Application Software C. Utility Software D. Malware Question 2. Files are Organized in: A. RAM B. Cache C. Directories D. None of the above Question 3. Two types of Networks are : A. WAN and LAN B. WAN and DAN C. TAN and CAN D. All of the above Question 4. Which of the following is not a file attribute? A. Name B. Extension C. Icon D. Size Question 5. Backing up of computer data is the process of: A. Reversing the files stored on the hard drive B. Putting your computer in the back of the room C. Storing an extra copy of data on the hard disk D. Storing an extra copy on an external storage device Question 6. A Database is used to: A. Store and Organize data in records B. Store and Organize papers C. Store and Organize records in files D. Store and Organize records in fields Question 7. ABC Super Market has a new inventory system, what type of software is managing it? A. Communications Software B. System Software C. Accounting Software D. Database Software Question 8. Electronic mail is best used to: A. Send and Receive messages over a network B. Send and Receive messages via the Internet C. Send and Receive messages via radio D. A and B waves. Question 9. The Main directory is otherwise called the? A. Truck Directory B. C directory C. Root Directory D. LAN Directory Question 10. The special formatting language used to create Web Pages is called: A. HTML B. COBOL C. Perl D. JAVA Question 11. An example of an Input device is a: A. Digital Camera B. Plotter C. Optical Disc D. Monitor Question 12. An example of an Output device is a: A. Scanner B. Plotter C. Tapes D. Software Question 13. A computer Virus is a malicious program that affects the computer A. True B. False Page 1/8
2 Question KB make 1MB A. True B. False Question 15. Networks are always connected in the same building A. True B. False Question 16. The WWW is: A. World Wide Wig of collections B. World Wide WAN of Computers C. World Wide Web D. None of the above Question 17. Which storage device is considered portable? A. Hard Disk B. Magnetic Tape C. Flash Drive D. ROM Question 18. RAM' stands for A. Random Access Memory B. Read Access Memory C. Read Arithmetic Memory D. Random Arithmetic Memory Question 19. Devices that accepts data from outside the computer and transfer into the CPU are called A. input devices B. digital devices C. analogue devices D. truth table peripherals Question 20. The Central Processing Unit (CPU) consists of A. control unit B. arithmetic and logic unit C. main store D. all of above Question 21. The 'main store' of the CPU is also called A. main memory B. temporary memory C. immediate access store D. both A and C Question 22. Which of the following is NOT an operating system? A. Linux B. Microsoft Vista C. Microsoft Word D. Mac Os X Question 23. An intranet is a public network and an extranet is a private network. A. True B. False Question 24. A device that enables a computer to communicate over telephone lines. A. Repeater B. Modem C. Switch D. Wireless access point Question 25. A letter, digit, or special character is represented by a code in a A. bit B. byte C. kilobyte D. megabyte Answers Page 2/8
3 Problem 2 Conversion between numeral systems 24 points 1- Find in base 10 the addition (1100)16 + (EA2)16 2- Convert to decimal the negative number ( )2 Page 3/8
4 3- Convert to decimal ( )2 4- Subtract the following relative numbers ( )2 - ( )2 on 8 bits machine Page 4/8
5 5- Calculate (ADE)16 + (CCC)16 6- Calculate (1001)8 + (101100)16 + ( )2 = (.)16 Page 5/8
6 7- Convert to binary on 8 bits machine the decimal number (-45)10 8- Give the representation in base 6 the number (57)5 Page 6/8
7 Problem 2 Database 6 points Give an entity-relationship model that best describes the database needed for managing information gathering countries and rivers as follows: - A country is identified by its name, surface and number of inhabitants. - A river is known by its name and length. Each river refers to a country. Draw the ER diagram. Problem 3 HTML 15 points Write the HTML code that displays the following: Page 7/8
8 Page 8/8
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