PAT
CAT
NAT
DAT
FAT
第1题：
A. The summarized address for all internal subnetted addresses.
B. A private IP address assigned to a host on the inside network.
C. A registered address that represents an inside host to an outside network.
D. A unique IP address used on an internal network
E. Non of the above
第2题：
A. The default route should have a next hop address of 64.100.0.3.
B. Hosts on the LAN that is connected to FastEthernet 0/1 are using public IP addressing.
C. The address of the subnet segment with the WWW server will support seven more servers.
D. The addressing scheme allows users on the Internet to access the WWW server.
E. Hosts on the LAN that is connected to FastEthernet 0/1 will not be able to access the Internet without address translation.
第3题：
A.NAT
B.IDS
C.NMAP
D.DMZ
第4题：
When an IP packet is Layer 3-switched from a source in one VLAN to a destination in another VLAN,which field in a packet will be rewritten? （）
第5题：
Assuming that an IP packet is sent from a source address in VLAN1 to a destination address in VLAN2 through a layer-3 switch, which part of the packet will be changed?（）
第6题：
A. network or subnetwork IP address
B. broadcast address on the network
C. IP address leased to the LAN
D. IP address used by the interfaces
E. manually assigned address to the clients
F. designated IP address to the DHCP server
第7题：
Which three of the following descriptions are true about the firewall modes？ （）
第8题：
A. Layer 2 TTL
B. Layer 3 TTL
C. Layer 3 source address
D. Layer 3 transport protocol
E. Layer 3 destination address
第9题：
When a DHCP server is configured, which two IP addresses should never be assignable to hosts? （）
第10题：
A router that takes the workstations internal IP address and changes it to another IP address whenit sends the data outside of the network is an example of which of the following?（）