Your company has a main office and two branch offices. Domain controllers in the main
office host an Active Directory-integrated zone. The DNS servers in the branch offices host
a secondary zone for the domain and use the main office DNS servers as the DNS Master
servers for the zone. Each branch office has an application server. Users access the
application server by using its fully qualified domain name. You need to ensure that users in
the branch offices can access their local application server even if the WAN links are down

for three days. What should you do?

A.
Increase the Refresh Interval setting to 4 days on the Start of Authority (SOA) record for
the zone.

B.
Configure the Zone Aging / Scavenging Properties dialog box to enable Scavenge stale
resource records, and set the Refresh setting to 4 days.

C.
Increase the Expires After setting to 4 days on the Start of Authority (SOA) record for the
zone.

D.
Configure the Zone Aging / Scavenging Properties dialog box to enable Scavenge stale
resource records, and set the No-refresh interval setting to 4 days.