Under what conditions does a secondary name server request a zone transfer from a primary name server?

exams 312-50v12 V1 312-50v12 exam 0 Comments

Under what conditions does a secondary name server request a zone transfer from a primary name server?
A . When a primary SOA is higher that a secondary SOA
B . When a secondary SOA is higher that a primary SOA
C . When a primary name server has had its service restarted
D . When a secondary name server has had its service restarted
E . When the TTL falls to zero

Answer: A