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What does time-to-live (TTL) mean?

time-to-live (TTL)
What does networking’s time-to-live (TTL) mean? The term “time to live” (TTL) describes the number of “hops” that a packet is allowed to stay in a network before a router discards it. TTL is also utilized in other settings, such as DNS and CDN caching. How does TTL...
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