多項選擇題

Refer to the exhibit. Based upon the debug output that is shown， 
which three statements about  HSRP are true？（）

A. The router with IP address 172.16.11.111 haspreempt configured.  
B. The final active router is the router with IP address 172.16.11.111.
C. The router with IP address 172.16.11.112 has nonpreempt configured.
D. The priority of the router with IP address 172.16.11.112 is preferred over the router with IP  address 172.16.11.111.
E. The router with IP address 172.16.11.112 is using default HSRP priority.
F. The IP address 172.16.11.115 is the virtual HSRP IP address.


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1.多項選擇題Which two characteristics apply to Cisco Catalyst 6500 Series Switch supervisor redundancy  using NSF？（）

A. independent of SSO
B. NSF combined with SSO enables supervisor engine load balancing
C. supported by RIPv2， OSPF， IS-IS， and EIGRP
D. supports IPv4 and IPv6 multicast
E. prevents route flapping
F. dependent on FIB tables

2.多項選擇題

pany has a Catalyst 6500 and you need to configure redundancy between the supervisor  modules. With route processor redundancy （RPR+）， the redundant supervisor engine is fully initialized and configured， which shortens the switchover time if the active supervisor engine fails.  
Which three statements are true about the RPR + operations when the redundant supervisor  engine switched over the failed primary supervisor engine？ （）

A. Static IP routes are maintained across a switchover because they are configured from entries in  the configuration file.
B. Information about dynamic routing states， maintained on the active supervisor engine， is  synchronized to the redundant supervisor engine and is transferred during the switchover.
C. Information about dynamic routing states， maintained on the active supervisor engine， is not  synchronized to the redundant supervisor engine and is lost on switchover.
D. The Forwarding Information Base （FIB） tables are cleared on a switchover. As a result， routed  traffic is interrupted until route tables reconverge.
E. Static IP routes are cleared across a switchover and recreated from entries in the configuration  file on the redundant supervisor engine.
F. The Forwarding Information Base （FIB） tables are maintained during the switchover. As a  result， routed traffic continues without any interruption when the failover occurs.