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Q. What IP address ranges should be used when NAT is configured on a server running the RRAS role?
A. IANA has reserved IPv4 address ranges for NAT as follows: Class A: to, with a subnet mask of; Class B: to, with a subnet mask of; and Class C: to, with a subnet mask of By default, Windows 2008 NAT uses a private Class B subnet and mask, but you can change this as needed in the NAT Properties dialog box (on the Address Assignment tab).
Q. How do you specify the network interface that will be used for Network Address Translation?
A. After NAT has been added to the RRAS configuration, you add a new interface in the RRAS snap-in and specify the network interface that is to be connected to the computers that will take advantage of NAT.
Q. What purpose do certificates play in the public key infrastructure used to protect network data?
A. Certificates identify an entity on a network, such as a user or a computer. The holder of a certificate, which is granted by a Certificate Authority, is trusted by the network.
Q. When you install the Certificate Services on a server running Windows Server 2008, what types of Certificate Authorities can be created?
A. When you install Certificate Services on a server running Windows Server 2008, you can create an enterprise root CA, an enterprise subordinate CA, a standalone root CA, or a standalone subordinate CA. An enterprise root CA requires the Active Directory; a standalone root CA does not require the Active Directory on the network.
Q. How is a Certificate Authority configured and managed?
A. The Certification Authority snap-in is used to configure and manage the Certificate Authority. It can be used to set properties for the Certificate Authority and to view and manage issued, revoked, and pending certificates.


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