xAI

Verified interview challenge

Investigate a free-tier traffic spike

Find out what a sudden rise in requests and spend represents before imposing broad blocks.

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The challenge

Free-tier traffic and token spend jump overnight, alongside a surge in new accounts. A teammate wants to block the busiest IP addresses and require a CAPTCHA from every user, but the traffic has not yet been investigated.

Choose the first checks to run against traffic, spend, signup and request records. Explain which findings would point to abuse, legitimate demand or a product bug, so the response does not depend on the volume spike alone.

What you'll practise

  • Signal interpretation

    Compare traffic, account and request evidence before classifying the surge.

  • Targeted responses

    Avoid treating a high-volume source as proof of abuse without the supporting checks.

Your investigation workspacePreview
Traffic and spending incidentCase materials included in the full challenge
Your investigation

Explain which evidence you would inspect and what each result would change.

The complete brief and feedback are included with Full Access.