A. one global STP instance for all VLANs
B. one STP instance for each VLAN
C. one STP instance per set of VLANs
D. one STP instance per set of bridges
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A.Designated Root Cost
B.bridge ID priority
C.max age
D.bridge ID MAC address
E.Designated Root Priority
F.forward delay
A.1） lowest root bridge id，2） lowest sender bridge id，3） lowest port id，4） lowest root path cost
B.1） lowest root path cost，2） lowest root bridge id，3） lowest sender bridge id，4） lowest sender port id
C.1） lowest root bridge id，2） lowest sender bridge id，3） lowest root path cost，4） lowest sender port id
D.1） lowest root bridge id，2） lowest root path cost，3） lowest sender bridge id，4） lowest sender port id
A.IGMPv3 has the ability to include or exclude source lists.
B.All IGMPv3 hosts send reports to destination address 224.0.0.22.
C.Only IGMPv2 reports may contain multiple group state records.
D.All IGMPv3 hosts send reports to destination address 224.0.0.23.
E.IGMPv2 does not support the Leave Group message.
A.ip pim ssm
B.ip pim ssm 232.0.0.0 255.0.0.0
C.ip pim ssm range 50
D.access-list 50 permit 232.0.0.0 15.255.255.255
E.ip pim enable default
A.mark VOIP traffic with IP precedence 6 and configure only fair-queue’ on the links
B.configure the scheduler allocate 3000 1000 command to allow the OoS code to have enough CPU cycles
C.enable class-based traffic shaping on the VOIP traffic class
D.enable Layer 2 fragmentation and interleaving on the links
E.enable Frame Relay on the links and send voice and data on different Frame Relay PVCs
A.Multicast Source Discovery Protocol mesh-groups must be configured between the two anycast RPs.
B.The RPs must be within the same IGP domain.
C.Multicast Source Discovery Protocol must be configured between the two anycast RPs.
D.The two anycast RPs must be IBGP peers.
A.The source must send a PIM Register message to the rendezvous point （RP）.
B.The source must first join the multicast group using IGMP before sending.
C.The source must perform a Request to Send （RTS） and Clear to Send （CTS） handshake with the PIM designated router （DR）.
D.No control plane signaling needs to be performed； the source can simply begin sending on the local subnet.
A.224.0.1.37
B.224.0.1.38
C.224.0.1.39
D.224.0.1.40
Based on the exhibit presented. What will be the objective of this route map when applied to traffic passing through a router？（）
A. Take any packet sourced from any address in the 10.2.0.0/16 network or destined to 10.1.14.25 and set the next hop to 10.1.1.1
B. Take any packet sourced from any address in the 10.2.0.0/16 network and destined to 10.1.14.25 and set the next hop to 10.1.1.1
C. Nothing； extended access lists are not allowed in route maps used for policy-based routing
D. Drop any packet sourced from 10.2.0.0/16
A.It works well with a multihomed environment.
B.It will inspect IP packets that are encapsulated in tunnels， such as GRE，LT2P，or PPTP.
C.uRPF is performed within the CEF switching path.
D.There might be a problem with DHCP as Unicast RPF is blocking packets with a 0.0.0.0 sourceaddress.
最新試題
Choose two commands that are required to enable multicast on a router， when it is known that thereceivers use a specific functionality of IGMPv3.（）
When STP UplinkFast is enabled on a switch utilizing the default bridge priority， what will the new bridgepriority be changed to？（）
Which three message types are valid PIMv2 message types？（）
Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is notconfigured as a route reflector？（）
Which multicast address is reserved for cisco-rp-discovery？（）
Which of the following is true about the MPLS header and its EXP field size？（）
Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree ProtocolIEEE 802.1 D？（）
How does an IPv6 router deal with a packet that is larger than the outgoing interface MTU？（）
Which two statements about SA caching are true？（）
In order to configure two routers as anycast RPs， which of these requirements， af a minimum， must besatisfied？（）