{CodeRoyale}
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Multiple ChoiceIntermediate 30s

Input Validation

Choose the best answer for: input validation
Options
  1. 1Server validation is optional if the client validates first
  2. 2Validation only for strings, since numbers cannot be abused
  3. 3Validate on both client and server; never trust client-side only
  4. 4Client-side validation is enough because users are trusted
backendintermediate

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