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Question 18:

You are the Windows 2003 network administrator for TalkTell Mobiles company. The network contains one primary internal DNS server, named DNSInt, and one primary external DNS server, named DNSExt. Several secondary DNS servers exist on the network. DNSExt hosts only records for your company's Web, FTP, and mail servers. The Web, FTP, and mail servers have static IP addresses. When you monitor the secondary DNS server, you notice that Transfer SOA Requests Sent is high. You want to minimize the bandwidth required for the transfer of SOA requests.

What should you do? (Choose two options. Each correct answer presents part of the solution.)

A. Disable dynamic updates on DNSExt
B. Increase the Time to Live (TTL) for the SOA record
C. Decrease the Time to Live (TTL) for the SOA record
D. Increase the value of the Refresh interval in the SOA record
E. Decrease the value of the Refresh interval in the SOA record
F. Configure the notify list on DNSExt to include the secondary DNS servers