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Olympiad (Class 11) Computer Science — practice by topic

Browse 120 questions across 6 Computer Science topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Computer Science topics

Computer Science (120)Olympiad Computer Science (120)Booleans and Decisions (30)Models of Computation (30)Programming Languages (30)Python Strings Lists and Tuples (30)

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A beginner picks a language built to be easy for people to read and write. That is a:Read the answer and worked solution →A programmer writes count = 5. The name count labels a spot in:Read the answer and worked solution →In JavaScript one variable holds a number, then later a text string. JavaScript is:Read the answer and worked solution →A language forces every declaration to state both a name and a data type. It is:Read the answer and worked solution →

Worked practice questions

A beginner picks a language built to be easy for people to read and write. That is a:

  1. High level language
  2. Hard wired language
  3. Hand coded language
  4. Half built language
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Correct answer: A. High level language

1. Languages differ in how close they sit to the machine. 2. One kind is designed for humans to read and understand. 3. That kind is a high level language. _Source: OpenStax Introduction to Computer Science, Chapter 7, High-Level Programming Languages._

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A programmer writes count = 5. The name count labels a spot in:

  1. Printer
  2. Memory
  3. Monitor
  4. Network
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Correct answer: B. Memory

1. A variable gives a name to a storage place. 2. That place holds a value while the program runs. 3. So count labels a spot in memory. _Source: OpenStax Introduction to Computer Science, Chapter 7, High-Level Programming Languages._

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In JavaScript one variable holds a number, then later a text string. JavaScript is:

  1. Weakly typed
  2. Strongly typed
  3. Strictly typed
  4. Steadily typed
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Correct answer: A. Weakly typed

1. Some languages lock a variable to one data type. 2. JavaScript lets the same variable hold any type. 3. So JavaScript is weakly typed. _Source: OpenStax Introduction to Computer Science, Chapter 7, High-Level Programming Languages._

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How to practise

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  2. Open the question to check the correct answer and read its worked solution.
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