A.interface gig3/1 spanning-tree guard root
B.interface gig3/1 spanning-tree root guard
C.interface gig3/1 spanning-tree root-guard
D.interface gig3/1 spanning-tree root-guard default
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A. prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed
B. all prefixes in its routing table
C. prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed
D. prefixes received from EBGP peers and prefixes received from route reflectors
E. prefixes received from other IBGP peers， prefixes received from EBGP peers， and prefixes redistributed to BGP
F. prefixes received from other IBGP peers and prefixes received from route reflectors
A.802.1s supports a reduced number of spanning-tree instances.
B.802.1s has better convergence times than 802.1w.
C.802.1s does not support load balancing over the same physical topology.
D.The CPU utilization for 802.1s is lower than the CPU utilization for 802.1w.
A.service timestamps log datetimec msec
B.logging timestamps msec
C.syslog timestamps hour minute second miliseconds
D.service logging timestamp msec
E.logging service timestamp msec
A.version 1
B.version 5
C.version 7
D.version 8
E.version 9
A.ip sla 1 icmp-echo 1.1.1.1 tos 12
B.ip sla 1 icmp-echo 1.1.1.1 tos 96
C.ip sla 1 icmp-echo 1.1.1.1 precedence 3
D.ip sla 1 icmp-echo 1.1.1.1 dscp 12
A.ip sla monitor low-memory
B.ip sla group schedule
C.ip sla reaction-trigger
D.ip sla enable timestamp
Refer to the exhibit. In this network， R1 is configured not to perform autosummarization within EIGRP. What routes will R3 learn from R2 through EIGRP？ （）
A. 172.30.1.0/24 and 10.1.2.0/24；EIGRP only performs autosummarization at the edge between two major networks.
B. 172.30.0.0/16 and 10.1.2.0/24；R2 will perform autosummarization although R1 will not.
C. Since R2 is configured without autosummarization， it will not propagate the 172.30.1.0/24 route.
D. 172.30.0.0/8 and 10.0.0.0/8.
Refer to the exhibit. In this network， R1 has been configured to advertise a summary route， 192.168.0.0/22， to R2. R2 has been configured to advertise a summary route， 192.168.0.0/21， to R1. Both routers have been configured to remove the discard route （the route to null created when a summary route is configured） by setting the administrative distance of the discard route to 255. What will happen if R1 receives a packet destined to 192.168.3.1？（）
A. The packet will loop between R1 and R2.
B. It is not possible to set the administrative distance on a summary to 255.
C. The packet will be forwarded to R2， where it will be routed to null0.
D. The packet will be dropped by R1， since there is no route to 192.168.3.1.
A.Upgrade the switches
B.Configure BPDU guard
C.Configure VLAN access lists
D.Configure port security
E.Configure Dynamic ARP inspection
A. Attempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall. If telnet works， BGP will work， since telnet and BGP both use TCP to transport data.
B. Ping from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall. If you can ping between them， BGP should work， since BGP uses IP to transport packets.
C. There is no way to make BGP work across a firewall without special configuration， so there is no simple test that will show you if BGP will work or not， other than trying to start the peering session.
D. There is no way to make BGP work across a firewall.
最新試題
Which of the following is true about the MPLS header and its EXP field size？（）
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Which two are differences between IGMPv2 and IGMPv3 reports？（）
In Layer 2 topologies， spanning-tree failures can cause loops in the network. These unblocked loops cancause network failures because of excessive traffic. Which two Catalyst 6500 features can be used to limitexcessive traffic during spanning-tree loop conditions？（）
Which multicast address is reserved for cisco-rp-discovery？（）
What is also called Type 0 authentication in OSPF on Cisco Routers？（）
In order to configure two routers as anycast RPs， which of these requirements， af a minimum， must besatisfied？（）
The classic Spanning Tree Protocol （802.1 D 1998） uses which sequence of variables to determine thebest received BPDU？（）
Choose two commands that are required to enable multicast on a router， when it is known that thereceivers use a specific functionality of IGMPv3.（）