Which command should be added to RTB under router bgp 100 to allow only the external OSPF routes to be redistributed to RTC?
正解:D
Explanation/Reference: Explanation: Use the external keyword along with the redistribute command under router bgp to redistribute OSPF external routes into BGP. With the external keyword, you have three choices: 1. redistribute both external type-1 and type-2 (Default) 2. redistribute type-1 3. redistribute type-2 Enter the commands in the configuration mode as described here: RTB(config-router)# router bgp 100 RTB(config-router)# redistribute ospf 1 match external.