1.What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a local router that has been configured as a DHCP server?

• Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router.
• Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5.
• The DHCP server function of the router will not issue the addresses between 172.16.4.1 and 172.16.4.5.
• The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.

2.An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can successfully resolve the mail server name to an IP address via the use of the nslookup command. At what layer of the OSI model is the problem most likely to be found?

• application
• transport
• network
• data link

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1.A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time?

• Configure DHCP and static NAT.
• Configure dynamic NAT for ten users.
• Configure static NAT for all ten users.
• Configure dynamic NAT with overload.

2.Refer to the exhibit. Which option displays the correct ACL that would need to be applied inbound on the S0/0/0 interface on R2 in order to permit any type of network traffic and block all FTP traffic coming from hosts on the 172.16.10.0/24 network going to the Internet?

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