杜鲁门说：“我相信，这是美国外交政策的转折点，它现在宣布，不论在什么地方，不论直接或间接侵略威胁

A. telnet access does not require a password

B. nat

C. no broadcast

D. chanage of destination address in the ipv6 header

E. chanage of source address in the ipv6 header

F. autoconfiguration

A.to verify the type of cable interconnecting two devices

B.to determine the status of network services on a remote device

C.to obtain VLAN information from directly connected switches

D.to verify Layer 2 connectivity between two devices when Layer 3 fails

E.to obtain the IP address of a connected device in order to telnet to the device

F.to determine the status of the routing protocols between directly connected routers

A.to verify the type of cable interconnecting two devices

B.to determine the status of network services on a remote device

C.to obtain VLAN information from directly connected switches

D.to verify Layer 2 connectivity between two devices when Layer 3 fails

E.to obtain the IP address of a connected device in order to telnet to the device

F.to determine the status of the routing protocols between directly connected routers

A. to verify the type of cable interconnecting two devices

B. to determine the status of network services on a remote device

C. to obtain VLAN information from directly connected switches

D. to verify Layer 2 connectivity between two devices when Layer 3 fails

E. to obtain the IP address of a connected device in order to telnet to the device

F. to determine the status of the routing protocols between directly connected routers

A. To determine the status of network services on a remote device

B. To obtain the IP Address of a connected device in order to telnet to the device

C. To verify the type of cable interconnecting two devices

D. To verify Layer 2 connectivity between two devices when Layer 3 fails

E. To obtain VLAN information from directly connected swticehs

F. To determine the status of the routing protocols between directly connected routers

G. To support automatic network failover during outages

A. The network was originated via redistribution of an interior gateway protocol into BGP.

B. The network was defined by a static route.

C. The network was learned via IBGP.

D. The network was learned via EBGP.

E. The network was originated via a network or aggregate command.

A.The network administrator can apply port security to dynamic access ports

B.The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.

C.The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.

D.The network administrator can apply port security to EtherChannels.

E.When dynamic mac address learning is enabled on an interface,the switch can learn new addresses,up to the maximum defined.

A.The network administrator can apply port security to dynamic access ports

B.The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.

C.The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.

D.The network administrator can apply port security to EtherChannels.

E.When dynamic mac address learning is enabled on an interface,the switch can learn new addresses,up to the maximum defined.

A．IP

B．ICMP

C．TCP

D．UDP