grceng.academy
Review lab 40 bonus XP

Review the control claims

Start labRead the room

Objectives

The owner says all six statements are acceptable because they use technical vocabulary. Judge the actual claim, not the confidence of its author.

Accept accurate limited mechanism statements; reject false equivalence, excessive privilege, absent evidence, or conclusions beyond the observation.

Verdicts are accept or reject. Every rejection needs one reason code from: wrong-mechanism | excess-privilege | missing-evidence | unsupported-claim.

Claims submitted for assurance

IT3-1  A filesystem maps names to objects and stores ownership, type and permissions as metadata.
IT3-2  Treat "750" as interchangeable with "640"; no mechanism check is needed.
IT3-3  Let every employee modify the protected service configuration without approval or review.
IT3-4  An ACL can grant named users or groups rights beyond the traditional three classes. This statement describes the mechanism only, not a complete audit conclusion.
IT3-5  Report a pass when the required observation is missing; no dated source is retained.
IT3-6  Claim that a documented posix modes policy proves every in-scope asset complied throughout the year.

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

    Read the whole claim and establish what it actually promises.

  2. Step 2

    Judge every line, including the boring ones

    Return a decision for each fixture line; do not silently discard awkward statements.

    Every line in the fixture carries a verdict

  3. Step 3

    Separate what is wrong from what is merely ugly

    Check technical accuracy and the scope of the conclusion separately.

    Accept and reject land on the right lines

  4. Step 4

    Say why, in the vocabulary the programme uses

    Select the code matching the direct defect, not the most alarming sounding code.

    Each rejection cites a valid reason code

Rules summary

  • XP on pass

    40 bonus XP the first time every check goes green.

  • Paid hints

    2 available. Each costs 25% of the lab XP (about 10 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.