Answer:
Give me brainliest thanks
The correct answer is C. Customer spreadsheet
Answer:open source
Explanation: what is's called
The default value at which a refresh interval (an interval a sec. server check for zone updates) is 15 minutes.
If this value is increased, the network traffic is reduced. In the eventuality that the refresh interval expires, the secondary zone will contact the primary zone and request it to initiate the zone transfer.
