Practise the standard verbs for handling DNS propagation delay safely.
0 / 5 completed
1 / 5
Fill in: 'We ___ the TTL on a DNS record low well before a planned cutover so caches expire quickly once we switch it.'
We 'set a TTL' — the standard, established DNS collocation for configuring a record's cache lifetime. The other options aren't the recognised term here.
2 / 5
Fill in: 'A high TTL left in place during a cutover can ___ some users still hitting the old server hours later.'
We say a high TTL will 'leave' stale users behind — the standard, natural collocation for the resulting lag. The other options aren't idiomatic here.
3 / 5
Fill in: 'We ___ propagation across multiple public resolvers before declaring the DNS change fully rolled out.'
We 'check propagation' — the standard, simple collocation for verifying a DNS change has spread. The other options are less idiomatic here.
4 / 5
Fill in: 'We ___ both the old and new servers running in parallel during the propagation window so no request gets dropped.'
We 'keep' something running — the standard, simple collocation for maintaining a resource temporarily. The other options are less idiomatic here.
5 / 5
Fill in: 'We ___ the cutover for a low-traffic window since some resolvers ignore TTL and cache records longer than expected.'
We 'schedule' an operation — the standard, simple collocation for timing planned maintenance. The other options are less idiomatic here.