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Evaluate failures and bound repeated work
Bound repeated work and describe what the teaching cache does not prove.
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Evaluate failures and bound repeated work
Bound repeated work and describe what the teaching cache does not prove.
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Source-based teaching example · Fictional data · Reviewed 2026-10-03. Microsoft Mark · locally synthesized. On a small screen, use fullscreen for diagram details or read the transcript.
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0:00 · What you will learn
Bound repeated work and describe what the teaching cache does not prove.
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Bound repeated work and describe what the teaching cache does not prove.
0:07 · The idea
Recognize retries of the same intended operation. Stop when evidence is missing instead of guessing through more attempts. Explain storage and concurrency limits.
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Recognize retries of the same intended operation. Stop when evidence is missing instead of guessing through more attempts. Explain storage and concurrency limits.
0:20 · One useful term
Idempotency. Repeated attempts at the same operation have one intended effect rather than duplicate effects.
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Repeated attempts at the same operation have one intended effect rather than duplicate effects.
0:30 · A worked example
Operation K creates output A once. Repeating K returns its recorded result. A new request with no evidence stops rather than retrying until an answer sounds right.
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Operation K creates output A once. Repeating K returns its recorded result. A new request with no evidence stops rather than retrying until an answer sounds right.
0:44 · Your turn to think
Does an in-memory teaching cache prove persistence across restarts? Pause and decide before continuing.
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Does an in-memory teaching cache prove persistence across restarts? Pause the video if you need more time.
1:02 · Why this answer works
No. The exercise does not establish persistence, concurrency handling or live-provider behavior.
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No. The exercise does not establish persistence, concurrency handling or live-provider behavior.
1:12 · Check 1
Count actual executions.
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Count actual executions.
1:17 · Check 2
Apply the retry limit.
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Apply the retry limit.
1:21 · Check 3
Record untested durability and concurrency.
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Record untested durability and concurrency.
1:27 · Now try a different case
Open the lesson and try its different practice case. Use every check in the full task. Watching alone does not mark the lesson complete.
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Open the lesson Try the new case Check and revise The full task and its requirements are in the linked lesson.
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