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Amazon prep path
Practical coding trackWeek 3Pro module

Verify correctness and resource claims

Find exact duplicate files and test the work required to read them. Distinguish a candidate match from proof, and measured I/O from untested performance claims.

What you will practice

  • Separate a cheap candidate match from proof of exact equality.
  • Test nested files, binary content, and symbolic-link boundaries.
  • Measure the specified I/O behavior without claiming unmeasured memory or speed gains.

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Sources and scope

Sources establish reported task overlap, not each module’s exact API, starter, tests, or extensions. Those are independently authored nrml practice. Linked report dates appear in the source labels; reviewed dates refer to the recorded source review. Historical reports and secondary summaries are identified explicitly. Completion records practice and review, not hiring readiness.