多项选择题
What are two benefits of using NAT?（）
A.NAT protects network security because privat enetworks are not advertised.
B.NAT accelerates the routing process because no modifications are made on the packets.
C.Dynamic NAT facilitates connections from the outside of the network.
D.NAT facilitates end-to-end communication when IPsec is enable.
E.NAT eliminates the need to re-address all host that require extemal access.
F.NAT conserves addresses through host MAC-level multiplexing.
相关考题
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单项选择题
What is the purpose using the traceroute command?（）
A.to map all the devices on a network.
B.to display the current TCP/IP configuration values.
C.to see how a device MAC address is mapped to its IP address.
D.to see the path a packet will take when traveling to a specified destination.
E.to display the MTU values for each router in a specified network path from source to a destination. -
单项选择题
On which types of network will OSPF elect a backup designated router（）。
A.point-to-point and multiaccess
B.point-to-multipoint and multiaccess
C.point-to-point and point-to-multipoint
D.nonbroadcast and broadcast multipoint
E.nonbroadcast and broadcast multiaccess -
单项选择题
Which type of attack is characterized by flood of packet that requesing a TCP connection to a server?（）
A.denial of service
B.brute force
C.reconnaissance
D.Trojan horse
