1 / 5
Fill in: 'We ___ a heartbeat to detect dead WebSocket connections quickly.'
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We 'send a heartbeat' — the standard collocation for a periodic keep-alive signal. The other options aren't idiomatic here.
2 / 5
Fill in: 'We ___ a client's connection if it misses several heartbeats in a row.'
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We 'close a connection' — the standard, simple collocation for terminating it. The other options are less idiomatic here.
3 / 5
Fill in: 'We ___ reconnect logic with backoff so clients don't hammer the server after a drop.'
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We 'implement' reconnect logic — the standard engineering collocation. The other options aren't idiomatic here.
4 / 5
Fill in: 'A sudden spike in traffic can ___ connections across many WebSocket servers at once.'
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We say a spike will 'drop' connections — the standard collocation for unwanted disconnects. The other options aren't idiomatic here.
5 / 5
Fill in: 'We ___ open connections per instance so a single node doesn't get overwhelmed.'
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We 'cap' connections — the standard collocation for setting an upper bound. The other options are less idiomatic here.