Quiz: Input Validation - Presence Checks
OCR GCSE J277 Computer Science specification
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Building on what you've learned about defensive design and anticipating misuse, let's test your understanding of presence checks!
What is the main purpose of a presence check?
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Which of these are examples of fields that commonly require presence checks? (Select all that apply)
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A presence check ensures that a {{blank0}} is provided in a form field before it is {{blank1}}.
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Match the items on the left with their correct pairs on the right
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If a form has 8 required fields, how many fields must pass a presence check?
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When a user leaves a required field blank, the system should display an {{blank0}} message to prompt the user to enter {{blank1}}.
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Match the items on the left with their correct pairs on the right
Which of the following are benefits of implementing presence checks? (Select all that apply)
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Which of the following describes a situation where a presence check is needed?
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What type of error does a presence check help prevent?
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