GRAYLOG - Chapter 8, Exercise 3 Solution
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Correcting Scenario 3's Level Range

PROBLEM
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Rewrite Scenario 3's own query so that it genuinely includes both
critical (2) and error (3) level messages, using this chapter's own
corrected form.

SOLUTION
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The original Scenario 3 query was:

    service:scout AND daxtraResource:"scout-cluster-eu-west-2" AND level:<3

This chapter's own warn-box explained that level:<3 only matches levels
0, 1, and 2 - genuinely excluding level 3 (Error) - and gave the fix as
replacing the range comparison with explicit OR-grouping:

    service:scout AND daxtraResource:"scout-cluster-eu-west-2" AND level:(2 OR 3)

ANSWER: service:scout AND daxtraResource:"scout-cluster-eu-west-2" AND
level:(2 OR 3)

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WHY THIS WORKS AS AN ANSWER

This is a direct application of the exact fix this chapter's own warn-
box specified, applied to Scenario 3's own real query. The corrected
version now genuinely matches both critical and error-level scout
activity on the eu-west-2 cluster, resolving the same real off-by-one
gap Chapter 3 first introduced with the simpler service:scout AND
level:<3 example.