2ND-EXAM

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School

University of Saint Anthony - San Miguel, Iriga City**We aren't endorsed by this school

Course

CIS DATA STRUC

Subject

Computer Science

Date

Jan 6, 2025

Pages

Uploaded by jjtoledo1993

CALABANGA NATIONAL SCIENCE HIGH SCHOOL(Formerly Calabanga National High School) Sta. Cruz, Calabanga Camarines SurS/Y: 2023-20242ndPERIODICAL EXAMINATIONCREATIVE TECHNOLOGY 9Name: ________________________________ Grade & Section: ________________ Date: ___________MULTIPLE CHOICE. Direction: Identify the word or group of words being referred to in the sentence. Choose and write the letter of the correct answer in the space provided before the number.1. What is the decimal equivalent of the binary number10111?a. 23b. 12c. 1010d. 662. Convert binary1111011to decimal:a. 161b. 123c.140d.1313. The binary number010100101is equal to which decimal number?a. 165b. 44c. 55d. 334. What is100010001in decimal?a. 199b. 277c. 273d. 1885. Convert1001010011to decimal:a. 399b. 595c. 756d.1116. The binary number01101011011 equals which decimal number?a. 55b. 66c. 577d. 8797. What is the decimal value of0111101111?a. 788b. 495c.597d. 5508. Convert1100111001to decimal:a. 1313b. 1212c. 825d. 9079. What is0011100111in decimal?a. 222b. 231c. 323d. 52510. The binary number1011110111equals which decimal number?a. 1212b. 1870c. 99d. 75911. What is the binary equivalent of decimal1313?a. 11011101b. 11111111c. 10011001d. 1011101112. How many binary digits (bits) are needed to represent decimal1515?a. 33 bitsb. 44 bitsc. 55 bitsd. 66 bits13. Convert decimal2020to binary:a. 1010010100b. 1001010010c. 1000110001d. 101101011014. What is the decimal equivalent of binary10101010?a. 1212b. 88c. 1010d. 9915. Convert decimal77to binary:a. 01100110b. 01110111c. 10001000d. 0101010116. Which binary number represents decimal2525?a. 1101011010b. 1100111001c. 1110011100d. 110111101117. What is the first step in converting decimal to binary?a. Multiply by 2b. Divide by 2c. Add 2d. Subtract 218. Convert decimal1818to binary:a. 1001110011b. 1001010010c. 1000110001d. 101001010019. In binary11111111, what is the value of the rightmost 1?a. 88b. 11c. 22d. 4420. What decimal number is represented by binary11001100?a. 1010b. 1212c. 1414d. 131321. Convert the binary number10101010to octal.a. 1212b. 1010c. 88d. 66“The beautiful thing about learning is that no one can take it away from you.” —B.B. King-SCORE

22. How many binary digits are needed to represent one octal digit?a. 22b. 44c. 33d. 8823. Convert the binary number111000111000to octal.a. 7070b. 7272c. 6060d. 565624. What is11111111in octal?a. 1515b. 1717c. 1313d. 111125. Convert101101101101to octal.a. 5555b. 5353c. 4545d. 515126. The binary number1100111001is equal to what octal number?a. 3333b. 3131c. 2525d. 272727. To convert binary to octal, we group binary digits in sets of:a. 44b. 22c. 33d. 5528. Convert1010011010100110to octal.a. 256256b. 246246c. 226226d. 24624629. What is1111011110in octal?a. 3636b. 3232c. 3030d. 343430. Convert10011011001101to octal.a. 113113b. 115115c. 117117d. 11111131. What is the binary equivalent of the octal number418?a. 1000012b. 11021102c. 01120112d. 1012101232. Which octal number is equivalent to binary11101021110102?a. 658b.728728c.748748d.71871833. Convert octal168to binary:a. 01111020111102b. 00111020011102c. 00110120011012d. 0011002001100234. What is the binary equivalent of428?a. 10000121000012b. 10001021000102c. 10010021001002d. 1000112100011235. Convert octal358to binary:a. 01111120111112b. 01110120111012c. 01111020111102d. 01110020111002Prepared by:Jessica Jane M. ToledoCreative Tech. 9 TeacherANSWER KEY1. A2. B

3. A4. C5. B6. D7. B8. C9. B10. D11. a12. b13. a14. c15. b16. d17. b18. b19. b20. b21. a22. c23. b24. b25. c26. b27. c28. b29. a30. b31. a32. b33. b34. b35. a