A.Traffic forwarded from R2 to or through R1 will continue to be forwarded based on the forwarding table state at the time of the reload.
B.R2 will continue to forward traffic to R1， but R1 will drop the traffic because its neighbor adjacency with R2 has failed.
C.R2 will continue forwarding traffic to and through R1， but R1 will drop this traffic because it is not capable of maintaining its forwarding state.
D.All the traffic R2 is forwarding to or through R1 will be dropped while OSPF rebuilds its neighbor adjacency and forwarding tables.
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A.It ensures that BPDUs sent by the root bridge are forwarded in a timely manner
B.It enforces the root bridge placement in the network
C.It ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.
D.It ensures that the bridge is elected as root bridge in the network.
A.IPv6 multicast uses Multicast Listener Discovery.
B.The first 8 bits of an IPv6 multicast address are always FF （1111 1111）.
C.IPv6 multicast requires MSDP.
D.PIM dense mode is not part of IPv6 multicast.
A.Sent by the destination
B.Received by the sender
C.Received by the destination
D.Sent by the sender
A.Only UplinkFast and BackboneFast are specified in 802.1w； PortFast must be manually configured.
B.Only PortFast is specified in 802.1w； UplinkFast and BackboneFast must be manually configured.
C.None of the proprietary Cisco enhancements are specified in 802.1w.
D.PortFast， UplinkFast， and BackboneFast are specified in 802.1w.
A.Speed mismatch
B.Incorrect encapsulation
C.MTU set too low
D.Duplex mismatch
最新試題
Which statement is true of a source that wants to transmit multicast traffic to group 239.1.1.1？（）
Choose two commands that are required to enable multicast on a router， when it is known that the receivers use a specific functionality of IGMPv3.（）
Which statement best describes OSPF external LSAs （type 5）？（）
Two directly connected routers， R1 and R2， are both configured for OSPF graceful restart. R2 is able to switch packets in hardware， but R1 is not. If a network administrator logs on to R2 and performs a system reload， which will be the result？（）
Policy-based routing allows network administrators to implement routing policies to allow or deny paths based on all of these factors except which one？（）
For the following items，what is the mathematical relationship between the committed information rate （CIR）， committed burst （Bc）， and committed rate measurement interval （Tc）？（）
What does a unicast prefix-based IPv6 multicast address start with？（）
For the following ports， which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge？（）
What is the command to configure RSVP to reserve up to one-tenth of a Gigabit link， but only allow each individual flow to use 1 MB/s？（）
What does the OSPF command capability vrf-lite achieve？（）