Which of the following charts does not display the X and Y axes?
- A. Bar chart
- B. Bubble chart
- C. Doughnut chart
- D. X, Y graph
If you are given the contract, what would be your first step of action?
- A. Analyse the result
- B. Design a software
- C. Investigate the problem
- D. Maintain the staff
Use the infomation belowto answer questions 42 and 43.
As a computer professional, you have just been con- tracted by a school to help them solve the problem they are facing in computing students’ results.
The school currently runs a manual system. Time and accuracy of the result are the major concerns.
What would you advise the school to do?
- A. Automate the system
- B. Close down the school
- C. Increase the number of staff
- D. Buy more calculators for the staff
The following are the guidelines for drawing flowcharts except that it?
- A. must have a logical start and finish
- B. should be clear, neat and easy to follow
- C. should follow a direction of right to left or bottom to top
- D. should follow a direction of left to right or top to bottom
A logic gate contains three input variables. The total possible combination of the input variables is?
- A. 3
- B. 4
- C. 8
- D. 12
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
A site engineer intends to acquire a computer system. What factors Will he consider if he must choose a notebook computer over a desktop computer?
- A. Size, cost and battery life
- B. Cost, size and convenience
- C. Size, convenience and battery life
- D. Cost, convenience and battery life
Which of the following options is a biometric data?
- A. Gender
- B. Password
- C. Date of birth
- D. Pattern of eye iris
The MS-Windows shortcut keys to initiate warm booting is?
- A. Alt+ f4
- B. Ctrl+ Alt + Del
- C. Ctrl+Esc
- D. Ctn +Shift + Del
The process of testing the logic of programs to ensure they give correct result is known as?
- A. algorithm
- B. desk checking
- C. flowcharting
- D. table checking
The command line prompt of MS-DOS operating system is represented as?
- A. C:>
- B. C:\
- C. C:\>
- D. C\:>
The algebraic equation for the AND gate with input variables A and B is?
- A. X = A.B
- B. X =A/B
- C. X= A-B
- D. X = A+B
The conversion of readable data to unreadable codes in order to prevent unauthorised access is known as?
- A. authentication
- B. encryption
- C. encoding
- D. decryption
A row in a database table is referred to as?
- A. attribute
- B. data item
- C. field
- D. record
The ASCII chart control characters using numeric codes ranging from?
- A. 0 to 124
- B. 0 to 125
- C. 0 to 127
- D. 0 to 128
The process of restarting the computer system is known as?
- A. cold booting
- B. hard booting
- C. hot bathing
- D. warm booting
The speed of data transfer in the computer can be determined in terms of?
- A. protocols and bus speed
- B. bus speed and bus width
- C. bus width and storage media
- D. bus speed and storage media
Which of the following components are data communication equipment?
I. Scanner ll. Hub lIl. Modem
- A. I and Il only
- B. I and lll only
- C. II and IIl only
- D. I, Il and III
Which of the following options is not an advantage of linear bus topology?
- A. It requires less cable length
- B. It ensures easy casting
- C. Additional nodes can be connected easily
- D. Terminators are required at both ends of the
The following components are network interconnecting devices EXCEPT?
- A. hub
- B. modem
- C. router
- D. webcam