Memcached Cache Invalidation Language Collocations
Practise the standard verbs for invalidating a Memcached cache reliably.
0 / 5 completed
1 / 5
Fill in: 'We ___ a short TTL on volatile keys, rather than a cache entry that outlives the data it's actually supposed to represent.'
We 'set a TTL' — the standard, simple collocation for configuring cache expiry. The other options are less idiomatic here.
2 / 5
Fill in: 'Forgetting to bust the cache on write can ___ users seeing stale data long after the actual update landed.'
We say a missed invalidation will 'leave' users seeing stale data — the standard, natural collocation for the resulting inconsistency. The other options aren't idiomatic here.
3 / 5
Fill in: 'We ___ cache keys with a versioned prefix, rather than a scheme where stale entries can't actually be targeted for removal.'
We 'namespace keys' — the standard, simple collocation for structuring cache keys for safe invalidation. The other options are less idiomatic here.
4 / 5
Fill in: 'We ___ every cache hit ratio against the baseline after a change, rather than assuming a new key scheme is actually working.'
We 'check a ratio' — the standard, simple collocation for confirming cache effectiveness after a change. The other options are less idiomatic here.
5 / 5
Fill in: 'We ___ stampede protection on hot keys explicitly, rather than letting a thundering herd hit the database the moment one entry expires.'
We 'add protection' — the standard, simple collocation for guarding against cache stampedes. The other options aren't idiomatic here.