EC-Council
312-50V11 · Question #641
Under what conditions does a secondary name server request a zone transfer from a primary name server?
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Footprinting and Reconnaissance
Question
Under what conditions does a secondary name server request a zone transfer from a primary name server?
Options
- AWhen a primary SOA is higher that a secondary SOA
- BWhen a secondary SOA is higher that a primary SOA
- CWhen a primary name server has had its service restarted
- DWhen a secondary name server has had its service restarted
- EWhen the TTL falls to zero
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Topics
#DNS zone transfer#SOA serial number#primary name server#secondary name server