Question: The DNS server at your headquarters holds a standard primary zone for the abc.com domain. A branch office connected by a slow WAN link holds

The DNS server at your headquarters holds a standard primary zone for the abc.com domain. A branch office connected by a slow WAN link holds a secondary zone for abc.com. Updates to the zone aren't frequent. How can you decrease the amount of WAN traffic caused by the secondary zone checking for zone updates?

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