Start learning →

BCA Computer Networks — practice questions — page 2

Explore 34 free Computer Networks questions in BCA Computer Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Computer Networks with Quill →

Computer Networks questions and exercises with answers

Showing questions 31–34 of 34.

Merge each network to its scaleRead the answer and worked solution →Rule out the wrong answersRead the answer and worked solution →Catch the topologiesRead the answer and worked solution →Stop the bar on the right answerRead the answer and worked solution →

Worked practice questions

Merge each network to its scale

Read exercise and reference answers
Items
  1. Group
    Room
    Item
    Bluetooth pair
  2. Group
    Room
    Item
    USB to laptop
  3. Group
    Room
    Item
    School campus
  4. Group
    City
    Item
    Cable TV net
  5. Group
    City
    Item
    Town broadband
  6. Group
    World
    Item
    The Internet
  7. Group
    World
    Item
    Across countries
Groups
  1. Item
    Room
  2. Item
    City
  3. Item
    World
Instructions
Drop each item into the column it belongs to.
_Source: syllabus Computer Science, Ch 10 'Computer Networks'_

Open this exercise →

Rule out the wrong answers

Read exercise and reference answers
Questions
  1. Question
    A fully connected mesh of n nodes needs this many wires.
    Choices
    1. Item
      n(n-1)/2
      Correct
      Yes
    2. Explanation
      The count comes from pairs of nodes, halved.
      Item
      n(n-1)/3
      Correct
      No
    3. Explanation
      Each node links to n-1 others, not n-2.
      Item
      n(n-2)/2
      Correct
      No
    4. Explanation
      No node links to itself, so n+1 is too many.
      Item
      n(n+1)/3
      Correct
      No
  2. Question
    Modem is short for these two words.
    Choices
    1. Item
      Modulator demodulator
      Correct
      Yes
    2. Explanation
      The device modulates and demodulates signals.
      Item
      Modular demodular
      Correct
      No
    3. Explanation
      That simply repeats the abbreviation.
      Item
      Modem demodem
      Correct
      No
    4. Explanation
      A modem is not a monitor or a decoder.
      Item
      Monitor decoder
      Correct
      No
Instructions
Remove the three wrong options and leave the right one.
_Source: syllabus Computer Science, Ch 10 'Computer Networks'_

Open this exercise →

Catch the topologies

Read exercise and reference answers
Items
  1. Matches the category
    Yes
    Item
    Mesh
  2. Matches the category
    Yes
    Item
    Ring
  3. Matches the category
    Yes
    Item
    Bus
  4. Matches the category
    Yes
    Item
    Star
  5. Matches the category
    Yes
    Item
    Tree
  6. Matches the category
    No
    Item
    Modem
  7. Matches the category
    No
    Item
    Packet
  8. Matches the category
    No
    Item
    Ethernet
Category
Network topologies
Instructions
Catch only the items that name a network topology.
_Source: syllabus Computer Science, Ch 10 'Computer Networks'_

Open this exercise →

How to practise

  1. Choose a Computer Networks question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Computer Science topics

Python ProgrammingComputer ScienceOlympiad Computer ScienceProgrammingProgramming LanguagesSoftware DevelopmentProblem Solving and AlgorithmsComputer System