A.OSPF、EGP、RIP
B.IS-IS、RIP-2、EIGRP、OSPF
C.BGP、IGRP、RIP
D.PPP、RIP、OSPF、IGRP

A.簡單，易管理
B.收斂速度快
C.報文量大
D.為避免路由環(huán)做特殊處理

A.8
B.9
C.10
D.15
E.16

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.

A.直接路由、靜態(tài)路由、rip、ospf
B.直接路由、ospf、靜態(tài)路由、rip
C.直接路由、ospf、rip、靜態(tài)路由
D.直接路由、rip、靜態(tài)路由、ospf