Chapter 19: Exchanging Data: Defining and Updating Tables Using SQL

A-level Computer ScienceOCR6 topicsHigher

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Logic Gates Long-Answer Questions

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4 questions24 marks36 min

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6 marksdescribestandardOCR A

CS19-1 logic circuits: describe how AND, OR, NOT, NAND and XOR gates operates in a circuit enabling a secure reset only for safe input combinations, using precise OCR H446 terminology.

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6 marksexplainstandardOCR A

CS19-2 applied case: explain why AND, OR, NOT, NAND and XOR gates would affect a circuit enabling a secure reset only for safe input combinations, including one limitation or trade-off.

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6 markswritehardOCR A

CS19-3 task for logic circuits: write a response using AND, OR, NOT, NAND and XOR gates in a circuit enabling a secure reset only for safe input combinations; produce the output column of a truth table.

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6 marksevaluatesynopticOCR A

CS19-4 synoptic judgement: evaluate the suitability of AND, OR, NOT, NAND and XOR gates for a circuit enabling a secure reset only for safe input combinations, comparing it with one credible alternative.

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18. Exchanging Data: Introduction to SQL

20. Exchanging Data: Transaction Processing

Key learning objectives

Understand the key principles behind Exchanging Data: Defining and Updating Tables Using SQL.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.