Pipeline or Barrier: Auditing 200 Config Files

You need to audit 200 infrastructure config files for a specific security misconfiguration, then produce one deduplicated report ranked by severity. You're deciding how to wire the fan-out.

1. Describe a barrier-synchronized design and a pipelined design for the "audit" stage, and say which one you'd choose and why.
2. The final "produce one report" step — is that a pipeline stage or a barrier? Justify your answer.
3. A teammate suggests adding a second audit pass for every file, in parallel with the first, to "increase confidence." Evaluate that suggestion.