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PC Basics Questions - All Grades

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Grade 10 PC Basics
How is the time taken to complete a software development project reduced?
  1. By ignoring some requirements in the analysis phase.
  2. By reusing modules wherever possible.
  3. By skipping some parts of the testing phase.
  4. None of the above
Grade 10 PC Basics
Which of the following is TRUE about extreme programming?
  1. It is based on the Waterfall model.
  2. Software is released more frequently in short cycles.
  3. Used to complete large projects in a shorter time period.
  4. None of the above
Grade 10 PC Basics
What is an interrupt?
  1. Interrupt is a signal sent by the processor to a software or device.
  2. Interrupt is a signal sent by a device or software to the processor.
  3. Interrupts are temporary memory storage areas.
Grade 10 PC Basics
Why do we need a buffer to transfer data from a computer to a printer?
  1. Printer operates at a much lower speed compared to that of the processor.
  2. To speed up the processor’s operation.
  3. To store data temporarily for a printer.
  4. All of the above.
Grade 10 PC Basics
Which of the following software model(s) is iterative?
  1. Waterfall
  2. Spiral
  3. Agile
  4. Both A and B
  5. Both B and C
Grade 10 PC Basics
In which of the following scheduling algorithms is an interrupt generated at specific time intervals?
  1. Shortest job first
  2. Longest waiting time first
  3. First come first serve
  4. Round Robin
Grade 10 PC Basics
Which of the following statements is FALSE about multitasking?
  1. A CPU can run multiple processes at the same time.
  2. When a process in running state consumes more time than expected, the process is then switched to waiting state.
  3. The swapping between processes is fast and it appears to the user that multiple processes are running at the same time.
  4. When a process is run by a CPU, the other processes are put on hold in a waiting state.
Grade 10 PC Basics
What is the advantage of programming in high-level languages?
  1. Developers can make special use of hardware.
  2. Easy to read and understand.
  3. Codes do not take up much space in primary memory.
Grade 10 PC Basics
Which of the following testing is NOT performed by the development or testing team of an organization?
  1. Alpha testing
  2. Beta testing
  3. Black box testing
  4. White box testing
Grade 10 PC Basics
Which of the following is the correct logical expression for the sum of a 2-bit binary adder?
  1. Sum S = (A AND B) OR ((NOT A) AND (NOT B))
  2. Sum S = ((NOT A) AND B) OR (A AND (NOT B))
  3. Sum S = ((NOT A) OR B) AND (A OR (NOT B))
Grade 10 PC Basics
What is the Boolean expression of the circuit shown?
  1. X = (A˅B) ^ (C^D)
  2. X = (A˅B) ^ (C˅D)
  3. X = (A^B) ˅ (C^D)
  4. X = (A^B) ˅ (C˅D)
Grade 10 PC Basics
When is the output (X) of gate 3 FALSE?
  1. A=1, B=0, C=1 and D=1
  2. A=1, B=1, C=0 and D=1
  3. A=1, B=1, C=0 and D=0
  4. A=1, B=0, C=0 and D=0
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