In DNS, AXFR transfers are used to perform what type of transfer?

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Multiple Choice

In DNS, AXFR transfers are used to perform what type of transfer?

Explanation:
AXFR is the mechanism for transferring the entire DNS zone from a primary server to a secondary server. It performs a full zone transfer, moving all resource records for that zone in one operation. This is different from incremental updates, which use IXFR to transfer only changes since the last transfer. It isn’t used for reverse lookups (which resolve IPs to hostnames via PTR records) or for dynamic updates where clients modify records in real time.

AXFR is the mechanism for transferring the entire DNS zone from a primary server to a secondary server. It performs a full zone transfer, moving all resource records for that zone in one operation. This is different from incremental updates, which use IXFR to transfer only changes since the last transfer. It isn’t used for reverse lookups (which resolve IPs to hostnames via PTR records) or for dynamic updates where clients modify records in real time.

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