What is the practical drawback of retaining all telemetry indefinitely?
Select an answer to reveal the explanation.
Short Explanation
You keep paying for more storage as telemetry piles up, and most of it stops being useful after the first days. That's why unlimited retention isn't practical.
Full Explanation
The correct answer is the one saying storage grows continuously and cost rises, while most operational telemetry loses investigative value long before it is old. Telemetry accumulates at a steady rate, so indefinite retention means indefinite growth in storage and expense. Meanwhile, most high-resolution operational data is used within days of being produced.
The option claiming ingestion stops once any retention limit is removed is incorrect because ingestion continues regardless; the consequence is capacity pressure rather than a halt.
The option claiming indefinite retention prevents alerts from evaluating current conditions is incorrect because alert evaluation looks at current and recent data and is unaffected by how much history is kept.
The option claiming older telemetry becomes progressively less accurate over time is incorrect because stored data does not degrade; its relevance declines, which is a different thing.
For the exam, frame the argument against unlimited retention as cost against declining value, not as a technical prohibition.