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Computer Science 11Th Class Computer Science Objective-Model Paper SSC Part – I (9th Class) Examination Total marks: 30 Time Allowed: 20 minutes 1. Select the correct option: 1. T-90 computer is an example of a. Micro Computer b. Mini Computer c. Mainframe Computer d. Super Computer 2. The technology used in ENIAC is a. Micro Processor b. Integrated Circuit(I.C) c. Vacuum tube d. Transistor 3. The command which is used to delete all files from disk a. Del All b. Kill *.* c. Delete *.* d. Del *.* 4. DOS One of the Dos "internal" command is a. Time b. format c. chkdisk d. xcopy 5. The device which is used to get "hard copy" as output a. Printer b. Scanner c. Speaker d. Monitor 6. CPU Temporary storage location within CPU is called a. ROM b. BIOS c. Cache d. Register 7. In Boolean Algebra, 1+0.1+1=.... a. 11 b. 10 c. 1 d. 0 8. X+Y =Y +X X+Y=Y+X represents the law of a. distributive law b. commutative law c. conductive law d. Associative law 9. FM stands for ----? a. Frequent Modulation b. Frequency Modulation c. Frequency Method d. Frequency Molecules 10. Which shortcut key is used to Fill Down? a. CTRL+D b. CTRL+T c. ALT+D d. ALT+D 11. Ctrl + L Shortcut is used in Microsoft Word to------? a. Left Align b. Left Indent c. Increase Left Margin d. Decrease Left Margin 12. Ctrl + M Shortcut is used in Microsoft Word to------? a. New Document b. Close Document c. Right Indent d. Left Indent 13. What is the function of CTRL+N in Microsoft Word? a. Save Document b. Open Document c. New Document d. Close Document 14. What is the function of CTRL+O in Microsoft Word? a. Save Document b. Print Document c. Close Document d. Open Document 15. What is the function of CTRL+P in Microsoft Word? a. Open Paragraph Dialog Box b. Open Page Format Dialog Box c. Open Save Dialog Box d. Open Print Dialog box 16. What is the function of CTRL+Q in Microsoft Word? a. Paragraph formatting (Line Space and Paragraph Space) b. Close Word Application without saving Document c. Print Whole Document without confirmation d. Does nothing 17. Ctrl + R Shortcut is used in Microsoft Word to-------? a. Re-Open the last closed document b. Re-Print the last printed page c. Re-Apply the last paragraph formatting d. Right align the selected Paragraph 18. Ctrl + S Shortcut is used in Microsoft Word to-------? a. Save Document with different name b. Save Document with same name c. Save Document and Close Word Application d. Save Document and Print whole Pages 19. Ctrl + T Shortcut is used in Microsoft Word to-------? a. Hanging Indent b. Left Indent c. Open Tabs Dialog box d. Terminate all opened Dialog box 20. Ctrl + U Shortcut is used in Microsoft Word to-------? a. Undelete the previously deleted text b. Undo the last changes c. Underline the document name d. Underline the selected text 21. CPU is an example of ---? a. Software b. A program c. An output unit d. Hardware 22. In Excel which key is used to open the excel formula window? a. Shift+F6 b. Shift+F3 c. Alt+Shift+F3 d. Alt+Shift+F6 23. FAT stands for ----? a. Frequent Allocation Table b. File Allocated Table c. File Allocation Table d. File Allocation Theory 24. A network which is used for sharing data, software and hardware among several users owning microcomputers is called -----? a. WAN b. MAN c. LAN d. VAN 25. The speed of communications between any two devices on the Ethernet LAN is -----? a. 10 Mbps b. 100 Mbps c. 10000 Mbps d. Both A and B 26. BASIC stands for ----? a. Basic All Purpose Symbolic Instruction Codes b. Beginners All Purpose Symbolic Instruction Codes c. Beginners All Purpose Symbolic Intelligent Codes d. Beginners Anti Purpose Symbolic Instruction Codes 27. XML stands for ----? a. Extensible Meria Letters b. Extensible Media Language c. Xtensible Markup Language d. Extensible Markup Language 28. In Excel which key is used for create a formula to sum all of the above cells? a. Ctrl+= b. Alt+- c. Alt+= d. Ctrl+- 29. In Excel which key is used for format number in comma format? a. Ctrl+Shift+1 b. Ctrl+Shift+4 c. Ctrl+1 d. Shift+1 30. SQL stands for ----? a. Straight Query Langauge b. Structured Query Langauge c. Structured Query Laison d. Structured Query Linear Computer Science Subjective-Model Paper SSC Part – I (9th Class) Examination Total marks: 65 Time: 3:00 hours SECTION I 2. Answer any Eleven (11) parts from the followings: 02×5=20 (i) Write any two uses of computer simulations in laboratories (ii) Define computer program with one example. (iii) Why we prefer compiler over interpreter (iv) State the term (v) Explain the usefulness of ports in computer system. (vi) State the advantage of voice recognition system. (vii) Explain the use of electro thermal printer (viii) Write names of any four operating systems. (ix) Define seek time. (x) Convert (27)10 into binary system (xi) State the importance of binary system. (xii) Convert (185.3)10 into hexadecimal. (xiii) Convert (101011)2 into decimal. (xiv) Different between folder and drive (xv) Write two benefits of using antivirus program SECTION II 4. Answer any TWO (02) parts from the followings: 05×2=10 (i) Why ROM is called Nonvolatile memory. Explain (ii) Data is organized on storage devices. Elaborate (iii) If X=0,Y=1,Z=0 then find out the value of X.Y+X.Z+X.Y (iv) Explain the purpose of "LABEL" command with syntax (v) Differentiate between XCOPY and COPY command in DOS? (vi) Differentiate between (a) Write down four differences between LCD and CRT monitors. (b) Explain the difference between PROM and EPROM. .
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