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| stub zone (A copy of a zone that contains only the resource records required to identify the authoritative DNS servers for that zone. A DNS server that hosts a parent zone and a stub zone for one of the parent zone`s delegated child zones can receive updates from the authoritative DNS servers for the child zone) | |||
| зона-заглушка: 3 phrases in 2 subjects |
| Electronics | 2 |
| Energy industry | 1 |