When no WINS server is present， all name registrations and lookups are done by UDP （）. A、 broadcastB、 multicastC、 unicastD、 None of the above.
When no WINS server is present， all name registrations and lookups are done by UDP （）.
- A、 broadcast
- B、 multicast
- C、 unicast
- D、 None of the above.
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