grceng.academy
Review lab 45 bonus XP

Review six pipeline runs

Start labRead the room

Objectives

The platform team says all six IAM-02 runs below are valid evidence because every job finished green. Review each run on its own. Accept runs that are genuine evidence; reject the rest with the single closest reason code.

Verdicts are accept or reject. Every rejection needs one reason code from: truncated-population | vacuous-pass | wrong-timestamp | mutable-store.

Six pipeline runs

PL-1 | collected 200 users; API total 1340; completeness check disabled "to reduce noise"; result pass
PL-2 | collected 0 users after token expiry; deny set empty; reported "0 violations - pass"
PL-3 | records stamped with report time Mon 09:00; raw export collected Fri 02:00
PL-4 | results written to latest.json, overwritten each night; no earlier runs retained
PL-5 | 1340 of 1340 users; 2 denies (bob, cara); manifest hashed; append-only store; owner alerted
PL-6 | 1338 of 1338 users; 0 denies; policy tests 4/4 at commit a41be7c; manifest verified by auditor

Checks the server runs (3)

  • Every line in the fixture carries a verdict
  • Accept and reject land on the right lines
  • Each rejection cites a valid reason code

Check names are all you see here: the expectations that decide pass or fail, and the reference solution, stay on the server.

Step-by-step hints

The guided walkthrough, in full. It is free: no XP cost, and it does not touch the paid hint ladder or the reveal gate.

  1. Step 1

    Read the request before the artefact

    Judge each run against Steps 2, 6, 8 and 10 separately.

  2. Step 2

    Judge every line, including the boring ones

    Give every PL line a verdict, including the good ones.

    Every line in the fixture carries a verdict

  3. Step 3

    Separate what is wrong from what is merely ugly

    Accept runs with a complete population, collection timestamps and tamper-evident storage, whatever their pass/fail outcome.

    Accept and reject land on the right lines

  4. Step 4

    Say why, in the vocabulary the programme uses

    Pick the root cause: population, denominator, time or storage.

    Each rejection cites a valid reason code

Rules summary

  • XP on pass

    45 bonus XP the first time every check goes green.

  • Paid hints

    2 available. Each costs 25% of the lab XP (about 11 XP).

  • Reveal solution

    Scores 0 XP and unlocks only after 3 check runs.

  • Attempt cap

    60 check runs per learner. The runner warns you in the last 10.

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  • Walkthrough

    Always free and never penalised: use it before spending a hint.