Computer Past Questions And Answers
Use the logic truth table in figure 3 to answer question
| X | Y | Z |
| 0 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
Given that X and Y are input variables while Z is the output. The truth table in figure 3 represents?
- A. XOR gate
- B. EX OR gate
- C. NOR gate
- D. NAND gate
Which of the following application packages is most suitable for database management?
- A. Photoshop
- B. MS Publisher
- C. Macromedia Flash
- D. Fox Pro
The parts of the taskbar include: I recycle bin Il start button lII system tray IV quick launch toolbar
- A. I, I and IV only
- B. I, Ill and IV only
- C. II, Il and IV only
- D. I, II, III and IV
The logic equation for the logic gate in the figure above is?
- A. Z=A+B
- B. Z=A.B
- C. Z= A+B
- D. Z=A.B.C
Ethical practice requires a computer user to
- A. shutdown properly
- B. hack into other peoples computer
- C. intrude into peoples privacy
- D. copy software without the license
Which of the following software is best suitable for keeping records during national population census?
- A. Word Processing
- B. Spreadsheet
- C. Graphic
- D. Database
(a) Convert 1011011\(_2\) to its hexadecimal equivalent
(b) State one difference a hacker and a scammer
(c) identify the parts labeled A, B, C and D on the keyboard shown below
View Discussion (0)WAEC 2017 THEORYIn MS Excel, the average of 10 numbers give B1, B2,...,B10 is?
- A. = B1 + B2 ... B10)/10
- B. @SUM(B1:B10).
- C. #SUM(B1:B10)/10,
- D. = B1 +B2 +... + B10/10.
In hexadecimal number system, B, D, E represent_________
- A. 11, 12, 13 respectively
- B. 12, 14, 15 respectively
- C. 13, 14, 15 respectively
- D. 14, 16, 17 respectively
A block of text that is marked by the tab key when the enter key is pressed can be referred to as?
- A. margin
- B. paragraph
- C. white space
- D. word wrap