You need to design a method to allow the new-ideas-testking.com Web site to function in accordance with security and business requirements.  What should you do？（）

A.On each client computer in the call center， configure a local policy that lists only authorized programs in the Allowed Windows Programs list
B.Using NTFS permissions， assign the Deny – Read permission for all unauthorized executable files to the client computer domain accounts
C.Design a Group Policy object （GPO） that enforces a software restriction policy on all client computers in the call center
D.Design a Group Policy object （GPO） that implements an IPSec policy on all client computers in the call center. Ensure that the IPSec policy rejects connections to any Web servers that the company does not operate

A.Disable all unnecessary services on each DHCP server
B.Modify the discretionary access control lists （DACLs） in Active Directory so that only members of the Enterprise Admins security group can authorize additional DHCP servers
C.Use an IPSec policy that allows only the packets necessary for DHCP and domain membership for each DHCP server
D.Install a digital certificate for SSL on each DHCP server

A.Configure and publish a certificate template that is suitable for S/MIME, Deploy a Group Policy object （GPO） so that a certificate that is based on this template is automatically issued to all domain users
B.Specify Group Policy objects （GPOs） and IPSec policies that require all client computers to use Kerberos authentication to connect to mail servers
C.For each mail server， acquire an SSL server certificate from a commercial CA whose root certificate is already trusted
D.Require IPSec encryption on all TCP connections that are used to send or receive e-mail messages