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Encryption

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Question 12

A student has written a Python program to implement a Caesar cipher.

When the algorithm encrypts the plaintext ZETA with a shift of +3, the output is ]HWD.

This output is incorrect.

Explain the error.

[2]
Markscheme

Encryption Questions

  1. IGCSE
  2. /Computer Science
  3. /Encryption

16 exam-style questions on Edexcel IGCSE Computer Science Encryption. Each one has a worked solution and a mark scheme showing where the marks go.

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