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| A1: | d; IPSec provides all these benefits. |
| A2: | b; Network address translation (NAT) translates IP addresses on the internal network to an IP address that will function on the external network. |
| A3: | a, c; Open Shortest Path First (OSPF) and Routing Information Protocol (RIP) are both dynamic routing protocols. |
| A4: | c; Virtual private networking permits users to create a virtual connection through the Internet that is secure and appears to the user as if it goes from the user straight to the target computer or network. |
| A5: | a, b, d; RRAS Dial-up networking relies on the Point-to-Point Protocol (PPP) for data communication. It supports Virtual Private Networking through Point-to-Point Tunneling Protocol (PPTP) and Layer Two Tunneling Protocol (L2TP). RRAS does not support the Serial Line Internet Protocol (SLIP). |