多項(xiàng)選擇題Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)（）。

A.It is locally significant
B.It is globally significant
C.It is needed to identify a unique instance of an OSPF database
D.It is an optional parameter required only if multiple OSPF processes are running on the router
E.All routers in the same OSPF area must have the same process ID if they are to exchange routing information


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1.多項(xiàng)選擇題Which of the following host addresses are members of networks that can be routed across the public Internet? （）

A.10.172.13.65
B.172.16.223.125
C.172.64.12.29
D.192.168.23.252
E.198.234.12.95
F.212.193.48.254

3.多項(xiàng)選擇題An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? （）

A.The switch must be configured with an IP address, subnet mask, and default gateway.
B.The switch must be connected to a router over a VLAN trunk.
C.The switch must be reachable through a port connected to its management VLAN.
D.The switch console port must be connected to the Ethernet LAN.
E.The switch management VLAN must be created and have a membership of at least one switch

4.單項(xiàng)選擇題TCP、UDP、SPX屬于OSI的（）。

A.網(wǎng)絡(luò)層
B.傳輸層
C.會話層
D.表示層

5.單項(xiàng)選擇題What is the effect of using the service password-encryption command？（）

A.Onl ypasswords configured afte rthe command has been entered will be encrypted.
B.Only the enable password will be encrypted.
C.Only the enable secret password will be encrypted
D.It will encrypt the secret password and remove the enable secret password from the configuration.
E.It will encrypt all current and future passwords.

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