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單項(xiàng)選擇題

You have a DNS server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). You have two Web servers named Server2 and Server3. 
The Web servers host an internal Web site that will be accessed by the URL http://www.contoso.com. You need to ensure that requests for www.contoso.com are distributed between Server2 and Server3. 
What should you do?()

A.On each Web server, configure a host header value of www.contoso.com.
B.On each Web server, configure a custom HTTP header value of www.contoso.com.
C.On Server1, create two host (A) records for www.contoso.com.
D.On Server1, create a _roundrobin._tcp.contoso.com service locator (SRV) record for each server that has a port value of 80.

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