SY0-301 · Question #478
SY0-301 Question #478: Real Exam Question with Answer & Explanation
The correct answer is A: Input validation. The common coding error described - where boundary checking is not performed - is the failure to implement proper input validation. When code does not validate that input stays within expected boundaries (e.g., checking that a string doesn't exceed a buffer's length), it leads to
Question
Options
- AInput validation
- BFuzzing
- CSecure coding
- DCross-site scripting
Explanation
The common coding error described - where boundary checking is not performed - is the failure to implement proper input validation. When code does not validate that input stays within expected boundaries (e.g., checking that a string doesn't exceed a buffer's length), it leads to vulnerabilities like buffer overflows. Input validation is the secure coding practice that prevents this; its absence is the error. Fuzzing (B) is a testing technique that sends unexpected input to find bugs. Secure coding (C) is the overall practice. Cross-site scripting (D) is a specific vulnerability type, not a category of coding error related to boundary checking.
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