Cram Quiz

1. What is the basic reason for implementing a firewall?

?  A. It reduces the costs associated with Internet access.

?  B. It provides NAT functionality.

?  C. It provides a mechanism to protect one network from another.

?  D. It allows Internet access to be centralized.

2. Which of the following statements best describes a VPN?

?  A. It is any protocol that enables remote clients to log in to a server over a network such as the Internet.

?  B. It provides a system whereby only screen display and keyboard and mouse input travel across the link.

?  C. It is a secure communication channel across a public network such as the Internet.

?  D. It is a protocol used to encrypt user IDs and passwords.

3. While reviewing the security logs for your server, you notice that a user on the Internet has attempted to access your internal mail server. Although it appears that the user’s attempts were unsuccessful, you are concerned about the possibility that your systems might be compromised. Which of the following solutions are you most likely to implement?