Quiz · 5 questions
🗄️ A Cache That Follows the Source
Keeping another Mac's files close without ever guessing whether they changed
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Quiz
01An app lists a folder on the workbench, then reads one of its files through its own Delta, passing the file's listed etag as expect. The cached entry carries exactly that etag. What crosses the network for this read?
02The owner of a file is asleep. The reading Mac's Delta holds a cached copy from earlier in the day. What does the app that asked receive?
03A tool rewrites a file in place on the owner, keeps its length, and then sets its modification time back to the old value. What happens to the validator Delta derives for that file?
04On a reading Mac, df reports 30 GiB free, while System Settings shows 900 GB available. The cache floor is the default 50 GiB. What does the cache do with the next miss?
05For a body of up to 4 MiB, Delta's engine reads the owner's whole answer, commits it to the cache, and only then sends headers and body to the app. What is that order for?
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