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Easy Free Computer & Technology Computer Fundamentals

Operating Systems Quiz

Review how operating systems manage hardware, software, files, memory and running processes.

25 Questions
30 min Duration
40% To pass
1.00 Marks / correct

Instructions

  • This quiz has 25 questions.
  • Questions are picked at random from a bank of 50, so each attempt is different.
  • You have 30 minutes. The quiz submits automatically when time runs out.
  • You need 40% to pass.
  • There is no negative marking.
  • You can mark questions for review and return to them before submitting.
  • Correct answers and explanations are shown after you submit.

Sample Questions & Answers

A preview of 12 questions from this quiz, each with the correct answer and a written explanation. Attempt the full, timed quiz to be scored and earn XP.

  1. Question 1

    In Computer Fundamentals, which option best describes ALU?

    • A register that tracks the address of the next instruction
    • The CPU component that performs arithmetic and logical operations Correct answer
    • A value or reference on which an instruction operates
    • An individual processing unit within a multicore processor
    Explanation: ALU is correctly described by: The CPU component that performs arithmetic and logical operations.
  2. Question 2

    In Computer Fundamentals, which option best describes Control unit?

    • The CPU component that coordinates instruction execution Correct answer
    • A register that holds the instruction currently being processed
    • The sequence of fetching, decoding, and executing an instruction
    • Multiple levels of cache organized by speed, size, and proximity to the CPU
    Explanation: Control unit is correctly described by: The CPU component that coordinates instruction execution.
  3. Question 3

    In Computer Fundamentals, which option best describes Register?

    • The part of an instruction specifying the operation to perform
    • A timing interval used to synchronize processor operations
    • A request satisfied by data already present in cache
    • A small, very fast storage location inside the CPU Correct answer
    Explanation: Register is correctly described by: A small, very fast storage location inside the CPU.
  4. Question 4

    In Computer Fundamentals, which option best describes Program counter?

    • A value or reference on which an instruction operates
    • An individual processing unit within a multicore processor
    • A register that tracks the address of the next instruction Correct answer
    • A request for data that is not currently in the required cache
    Explanation: Program counter is correctly described by: A register that tracks the address of the next instruction.
  5. Question 5

    In Computer Fundamentals, which option best describes Instruction register?

    • The sequence of fetching, decoding, and executing an instruction
    • A register that holds the instruction currently being processed Correct answer
    • Multiple levels of cache organized by speed, size, and proximity to the CPU
    • Overlapping stages of multiple instructions to improve throughput
    Explanation: Instruction register is correctly described by: A register that holds the instruction currently being processed.
  6. Question 6

    In Computer Fundamentals, which option best describes Opcode?

    • The part of an instruction specifying the operation to perform Correct answer
    • A timing interval used to synchronize processor operations
    • A request satisfied by data already present in cache
    • A technique for predicting the likely path of a conditional branch
    Explanation: Opcode is correctly described by: The part of an instruction specifying the operation to perform.
  7. Question 7

    In Computer Fundamentals, which option best describes Operand?

    • An individual processing unit within a multicore processor
    • A request for data that is not currently in the required cache
    • Executing predicted instructions before their outcome is confirmed
    • A value or reference on which an instruction operates Correct answer
    Explanation: Operand is correctly described by: A value or reference on which an instruction operates.
  8. Question 8

    In Computer Fundamentals, which option best describes Instruction cycle?

    • Multiple levels of cache organized by speed, size, and proximity to the CPU
    • Overlapping stages of multiple instructions to improve throughput
    • The sequence of fetching, decoding, and executing an instruction Correct answer
    • A processor design approach emphasizing a relatively small set of simple instructions
    Explanation: Instruction cycle is correctly described by: The sequence of fetching, decoding, and executing an instruction.
  9. Question 9

    In Computer Fundamentals, which option best describes Clock cycle?

    • A request satisfied by data already present in cache
    • A timing interval used to synchronize processor operations Correct answer
    • A technique for predicting the likely path of a conditional branch
    • A processor design approach supporting a larger and more complex instruction set
    Explanation: Clock cycle is correctly described by: A timing interval used to synchronize processor operations.
  10. Question 10

    In Computer Fundamentals, which option best describes CPU core?

    • An individual processing unit within a multicore processor Correct answer
    • A request for data that is not currently in the required cache
    • Executing predicted instructions before their outcome is confirmed
    • A communication pathway used to transfer data or signals between components
    Explanation: CPU core is correctly described by: An individual processing unit within a multicore processor.
  11. Question 11

    In Computer Fundamentals, which option best describes Cache hierarchy?

    • Overlapping stages of multiple instructions to improve throughput
    • A processor design approach emphasizing a relatively small set of simple instructions
    • A bus that carries data
    • Multiple levels of cache organized by speed, size, and proximity to the CPU Correct answer
    Explanation: Cache hierarchy is correctly described by: Multiple levels of cache organized by speed, size, and proximity to the CPU.
  12. Question 12

    In Computer Fundamentals, which option best describes Cache hit?

    • A technique for predicting the likely path of a conditional branch
    • A processor design approach supporting a larger and more complex instruction set
    • A request satisfied by data already present in cache Correct answer
    • A bus that carries addresses identifying memory or I/O locations
    Explanation: Cache hit is correctly described by: A request satisfied by data already present in cache.

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Explore more: All Computer & Technology quizzes · Computer Fundamentals

Operating Systems

An operating system connects users and applications with computer hardware. Questions in this quiz cover areas such as processes, memory, files and other concepts that explain how an OS works.

Frequently Asked Questions

Each attempt serves 25 questions, drawn at random from a bank of 50, with 30 minutes.

You need at least 40% to pass this quiz.

No, there is no negative marking on this quiz.

Yes. You can attempt this quiz again at any time, though first-attempt XP bonuses apply only once.

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