9th Class Computer Chapter 2 TestSYSTEM DESIGN AND TROUBLESHOOTING

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following is important for maintaining confidentiality, integrity, and availability of data?

   1. Improving Security

   2. Increasing storage

   3. Changing display

   4. Buying new hardware

2. What is the output of an OR gate if one input is true?

   1. True

   2. False

   3. Zero

   4. Undefined

3. If your computer is slow while multitasking, what component should you add to improve performance?

   1. More RAM

   2. New Mouse

   3. Larger LCD

   4. New Cables

4. How had the vulnerability exploited by WannaCry been fixed before the attack?

   1. By replacing the hard drive

   2. By restarting the system

   3. By uninstalling applications

   4. It was patched in a security update

5. The final step in creating a logic diagram is to:

   1. Write the Boolean function

   2. Arrange the gates

   3. Connect the inputs and the output of the gates correctly

   4. Find the logic gates

6. What does SMART check in your computer?

   1. RAM speed

   2. CPU usage

   3. Hard drive health

   4. Internet speed

7. Knowledge of which two concepts is crucial for creating logic diagrams?

   1. Boolean algebra and logic gates

   2. ADC and DAC

   3. Analog and digital signals

   4. Microprocessor and memory

8. What type of values does an analog signal have?

   1. Only 0 and 1

   2. Discrete values

   3. Infinite possible values within a range

   4. Fixed binary values

9. What is the Associative form of ?

   1. A.(B.C)

   2. A.B+A.C

   3. A+B

   4. A.B.C

10. What kind of issue can reduce system performance?

    1. Software conflicts

    2. File downloads

    3. Screen brightness

    4. Font sizes