多项选择题

Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? （）

A.802.1d
B.VTP
C.802.1q
D.STP
E.SAP

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单项选择题

A router receives information about network 192.168.10.0/24 from multiple sources.What will the routerconsider the most reliable information about the path to that network？（）

A.an OSPF update for network 192.168.0.0/16
B.a static router to network 192.168.10.0/24
C.a static router to network 192.168.10.0/24 with a local serial interface configured as the next hop
D.a RIP update for network 192.168.10.0/24
E.a directly connected interface with an address of 192.168.10.254/24
F.a default route with a next hop address of 192.168.10.1

多项选择题

Which two link protocols are used to carry multiple VLANs over a single link?（）

A.VTP
B.802.1q
C.IGP
D.ISL
E.802.3u

多项选择题

The network administrator of the Oregon router adds the following command to the router configuration: ip route 192.168.12.0 255.255.255.0 172.16.12.1. What are the results of adding this command (Choose two.)（）。

A.The command establishes a static route.
B.The command invokes a dynamic routing protocol for 192.168.12.0.
C.Traffic for network 192.168.12.0 is forwarded to 172.16.12.1.
D.Traffic for all networks is forwarded to 172.16.12.1.
E.This route is automatically propagated throughout the entire network.
F.Trafficfor network 172.16.12.0 is forwarded to the 192.168.12.0 network.