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O-LevelComputer ScienceData Transmission2210/11 · May/June 2024 · Q74 Marks

Data is encrypted to keep it safe during transmission. Complete the paragraph about asymmetric encryption. Use the terms from the list. Some of the terms in the list will not be used. You should only use a term once. asymmetric certificate cipher text decrypted encrypted parallel key plain text private key protected public key serial key symmetric _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is encrypted into _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ using a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . The encrypted data is then transmitted from the sender to the receiver. The encrypted data is then decrypted using a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

  1. Data is encrypted to keep it safe during transmission. Complete the paragraph about asymmetric encryption. Use the terms from the list. Some of the terms in the list will not be used. You should only use a term once. asymmetric certificate cipher text decrypted encrypted parallel key plain text private key protected public key serial key symmetric _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is encrypted into _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ using a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . The encrypted data is then transmitted from the sender to the receiver. The encrypted data is then decrypted using a _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _[4]

Mark scheme

Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.

  1. [4] 7 One mark for each correct term in the correct place. • plain text • cipher text • public key • private key

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About this question

Topic
Data Transmission, O-Level Computer Science (syllabus 2210). Structured question, 4 marks.
Source
O-Level Computer Science, May/June 2024 Paper 1 Variant 1, question 7.

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