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JAMB Commerce 2020 past questions and answers

3 questions. Try each one, then open the answer to check yourself and read the explanation.

Question 13

Communication

Use the diagram below to answer questions 13 and 14.
X represents

Diagram for this question
  1. A.action
  2. B.receiver
  3. C.transmission
  4. D.ideation
Show the answer and explanation

Answer: B (receiver)

Explanation

In the communication process the message goes from the sender through a medium to the receiver, who sends feedback; X, which sends feedback, is the receiver.

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Question 14

Communication

Use the diagram below to answer questions 13 and 14.
In the communication process, Y represents

Diagram for this question
  1. A.the encoder
  2. B.the initiator
  3. C.noise
  4. D.the medium
Show the answer and explanation

Answer: D (the medium)

Explanation

Y lies between the sender and the receiver, so it is the medium (channel) that carries the message.

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Question 19

Computers in Commerce

The process of eliminating a virus from a computer is the

  1. A.programming
  2. B.formatting
  3. C.looping
  4. D.debugging
Show the answer and explanation

Answer: B (formatting)

Explanation

Formatting a storage device wipes everything on it, including any virus.

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