Which tech nology manages multicast traffic at Layer 2 by configuring Layer 2 LAN interfaces dynamically to forward multicast traffic only to those interfaces that want to receive it?() A. IGMPB. IGMP snoopingC. PIM - DMD. DVMRPE. MOS PF
Which tech nology manages multicast traffic at Layer 2 by configuring Layer 2 LAN interfaces dynamically to forward multicast traffic only to those interfaces that want to receive it?()
A. IGMP
B. IGMP snooping
C. PIM - DM
D. DVMRP
E. MOS PF
相关考题：
What is the purpose of unicast reverse path forwarding?() A. to validate packet receipt on interfaces where the traffic should be receivedB. to forward packets out the interfaces where the traffic should be receivedC. to forward packets out the interfaces where the traffic should be sentD. to validate packet receipt on interfaces where the traffic should be sent
Which two statements are true about Internet Group Management Protocol (IGMP) snooping?() A. IGMP snooping and Cisco Group Membership Protocol (CGMP) can be used simultaneously on a switch.B. IGMP snooping a nd Cisco Group Membership Protocol (CGMP) were developed to help Layer 3 switches make intelligent forwarding decisions on their own.C. IGMP snooping examines IGMP join/leave messages so that multicast traffic is forwarded only to hosts that sent an IG MP message toward the router.D. IGMP snooping is an IP multicast constraining mechanism for Layer 2 switches.E. IGMP snooping is enabled with the ip multicast - routing global configuration command.
Which three statements are true about the Internet Group Management Protocol (IGMP)? () A. There are three IGMP modes: dense mode, sparse mode, and sparse - dense modeB. IGMP is used to register individual hosts with a multicast groupC. IGMP version 3 enables a multicast receiving host to specify to the router which sources it should forward traffic fromD. IGMP messages a re IP datagrams with a protocol value of 2, destination address of 224.0.0.2, and a TTL value of 1E. IGMP is a multicast routing protocol that makes packet - forwarding decisions independent of other routing protocols such as EIGRPF. IGMP snooping ru ns on Layer 3 routers
Which roaming option will keep them on the same IP subnet when client traffic is being bridged through LAN interfaces on two WLCs?() A. Layer 1intercontroller roamingB. Layer 2intercontroller roamingC. Layer 3intercontroller roamingD. Layer 4intercontroller roaming
Which tech nology manages multicast traffic at Layer 2 by configuring Layer 2 LAN interfaces dynamically to forward multicast traffic only to those interfaces that want to receive it?（）A、IGMPB、IGMP snoopingC、PIM - DMD、DVMRPE、MOS PF
Which statement is true of a source that wants to transmit multicast traffic to group 239.1.1.1？（）A、Before sending traffic, it must first join multicast group 239.1.1.1 by sending an IGMPv2 membership report to the default router on the local subnet.B、It must send an IGMPv2 Request to Send packet and then wait for an IGMPv2 Clear to Send packet from the IGMPv2 querier router on the local subnetC、It may begin transmitting multicast traffic to the group only when there is no other host transmitting to the group on the local subnet.D、It may transmit multicast traffic to the group at any time.
Which two options can be used as traffic descriptors when classifying and marking traffic？ （）A、incoming interfaceB、Layer 2 differentiated services code point （DSCP）C、Layer 3 IP precedenceD、outgoing interface
Which roaming option will keep them on the same IP subnet when client traffic is being bridged through LAN interfaces on two WLCs?（）A、Layer 1intercontroller roamingB、Layer 2intercontroller roamingC、Layer 3intercontroller roamingD、Layer 4intercontroller roaming
Which condition must be met to allow a PE router to forward VPN traffic across a LSP in a Layer 3 VPN environment？（）A、The BGP next hop must be in inet.1.B、The BGP next hop must be in inet.3.C、Must have a bidirectional LSP configured.D、Must have a static route to allow an RP for connected interfaces.
Client traffic is being bridged through LAN interfaces on two WLCs. Which roaming option will keep them on the same IP subnet？（）A、 Layer 1 intercontroller roamingB、 Layer 2 intercontroller roamingC、 Layer 3 intercontroller roamingD、 intracontroller roaming
What is the function of the no switchport catalyst switch interface configuration command?（）A、Disables the interfaces to prevent traffic flowB、Clears all the configurations on the interfaceC、Switches the port from access mode to trunk modeD、Converts the port from physical Layer 2 port to physical Layer 3 port
Which of these is true regarding the configuration and application of port access control lists？ （）A、PACLs can be applied in the inbound or outbound direction of a Layer 2 physical interface. B、At Layer 2， a MAC address PACL will take precedence over any existing Layer 3 PACL.C、When you apply a port ACL to a trunk port， the ACL filters traffic on all VLANs present on the trunk port.D、PACLs are not supported on EtherChannel interfaces.
What is the most common cause of network congestion？（）A、aggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switchesB、speed mismatches when moving from a low-speed LAN environment to a higher speed WAN environmentC、flapping Ethernet interfaces caused by misconfigured LAN interfacesD、flapping serial interfaces caused by misconfigured WAN interfacesE、speed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment
You are the network consultant from Cisco.com. Please point out two statements correctly describe an IPS device（）A、It resembles a Layer 2 bridge.B、Traffic flow through the IPS resembles traffic flow through a Layer 3 router.C、Inline interfaces which have no IP addresses cannot be detected.D、Malicious packets that have been detected are allowed to pass through, but all subsequent traffic is blocked.
Which roaming option will keep them on the same IP subnet when client traffic is being bridged through LAN interfaces on two WLCs？（）A、 Layer 1 intercontroller roamingB、 Layer 2 intercontroller roamingC、 Layer 3 intercontroller roamingD、 Layer 4 intercontroller roaming
Which two statements are true about Internet Group Management Protocol (IGMP) snooping?（）A、IGMP snooping and Cisco Group Membership Protocol (CGMP) can be used simultaneously on a switch.B、IGMP snooping a nd Cisco Group Membership Protocol (CGMP) were developed to help Layer 3 switches make intelligent forwarding decisions on their own.C、IGMP snooping examines IGMP join/leave messages so that multicast traffic is forwarded only to hosts that sent an IG MP message toward the router.D、IGMP snooping is an IP multicast constraining mechanism for Layer 2 switches.E、IGMP snooping is enabled with the ip multicast - routing global configuration command.
During the IPv6 address resolution， a node sends a neighbor solicitation message in order to discover which of these？（）A、The Layer 2 multicast address of the destination nodeB、The solicited node multicast address of the destination nodeC、The Layer 2 address of the destination node based on the destination IPv6 addressD、The IPv6 address of the destination node based on the destination Layer 2 address
What is the purpose of unicast reverse path forwarding?（）A、to validate packet receipt on interfaces where the traffic should be receivedB、to forward packets out the interfaces where the traffic should be receivedC、to forward packets out the interfaces where the traffic should be sentD、to validate packet receipt on interfaces where the traffic should be sent
单选题What is the most common cause of network congestion？（）Aaggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switchesBspeed mismatches when moving from a low-speed LAN environment to a higher speed WAN environmentCflapping Ethernet interfaces caused by misconfigured LAN interfacesDflapping serial interfaces caused by misconfigured WAN interfacesEspeed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment
单选题Client traffic is being bridged through LAN interfaces on two WLCs. Which roaming option will keep them on the same IP subnet？（）A Layer 1 intercontroller roamingB Layer 2 intercontroller roamingC Layer 3 intercontroller roamingD intracontroller roaming
单选题During the IPv6 address resolution， a node sends a neighbor solicitation message in order to discover which of these？ （）A The Layer 2 multicast address of the destination nodeB The solicited node multicast address of the destination nodeC The Layer 2 address of the destination node based on the destination IPv6 addressD The IPv6 address of the destination node based on the destination Layer 2 address
单选题Which roaming option will keep them on the same IP subnet when client traffic is being bridged through LAN interfaces on two WLCs？（）A Layer 1 intercontroller roamingB Layer 2 intercontroller roamingC Layer 3 intercontroller roamingD Layer 4 intercontroller roaming
单选题Which tech nology manages multicast traffic at Layer 2 by configuring Layer 2 LAN interfaces dynamically to forward multicast traffic only to those interfaces that want to receive it?（）AIGMPBIGMP snoopingCPIM - DMDDVMRPEMOS PF
多选题You are the network consultant from Cisco.com. Please point out two statements correctly describe an IPS device？（）AIt resembles a Layer 2 bridge.BTraffic flow through the IPS resembles traffic flow through a Layer 3 router.CInline interfaces which have no IP addresses cannot be detected.DMalicious packets that have been detected are allowed to pass through， but all subsequent traffic is blocked.
多选题Which three statements regarding Cisco ASAmulticast routing support are correct？ （）AASA supports both stubmulticast routing and PIMmulticast routing. However， you cannot configure bothconcurrently on a single security applianceBWhen configured for stubmulticast routing， the ASA can act as the Rendezvous Point （RP）CIf the ASAdetects IGMPversion1 routers， the ASAwill automatically switch to IGMP version 1 operations.DThe ASA supports both PIM-SM and bi-directional PIMEEnabling multicast routing globally on the ASA automatically enables PIM and IGMP on all interfacesFThe ASA can be configured for IGMP snooping toconstrain theflooding of multicast traffic by dynamically configuring themulticast traffic to be forwarded only those interfaces associated with hosts requesting themulticast group
多选题Which three statements are true about the Internet Group Management Protocol (IGMP)? （）AThere are three IGMP modes: dense mode, sparse mode, and sparse - dense modeBIGMP is used to register individual hosts with a multicast groupCIGMP version 3 enables a multicast receiving host to specify to the router which sources it should forward traffic fromDIGMP messages a re IP datagrams with a protocol value of 2, destination address of 224.0.0.2, and a TTL value of 1EIGMP is a multicast routing protocol that makes packet - forwarding decisions independent of other routing protocols such as EIGRPFIGMP snooping ru ns on Layer 3 routers
单选题Which statement is true of a source that wants to transmit multicast traffic to group 239.1.1.1？（）ABefore sending traffic, it must first join multicast group 239.1.1.1 by sending an IGMPv2 membership report to the default router on the local subnet.BIt must send an IGMPv2 Request to Send packet and then wait for an IGMPv2 Clear to Send packet from the IGMPv2 querier router on the local subnetCIt may begin transmitting multicast traffic to the group only when there is no other host transmitting to the group on the local subnet.DIt may transmit multicast traffic to the group at any time.