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在IGMP v1的报文中," Group address"中的地址是指()。
A.组播源的IP地址
B.组播组的地址
C.接收者的地址
D.组播路由器的地址
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更多 “ 在IGMP v1的报文中," Group address"中的地址是指()。 A.组播源的IP地址B.组播组的地址C.接收者的地址D.组播路由器的地址 ” 相关考题
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(56）以下关于IGMP协议的描述，正确的是( ）。A） IGMP运行于主机和与主机直接相连的组播路由器之间B） IGMP实现的功能是单向的C） IGMP v1添加了组成员快速离开的机制D） IGMP v2定义了基本的组成员查询和报告过程
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以下关于IGMP协议的描述，正确的是( )。A．IGMP运行于主机和与主机直接相连的组播路由器之间B．IGMP实现的功能是单向的C．IGMP v1添加了组成员快速离开的机制D．IGMP v2定义了基本的组成员查询和报告过程
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基于Windows 2003操作系统的双协议栈主机中，如果输入“ipconfig /all”命令后获得的IP地址是 2001:251:e101::36，那么该IP地址是一个(31)。A．单播地址(unicast address)B．组播地址(multicast address)C．任意播地址(anycast address)D．广播地址(broadcast address)
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下面不属于IGMP v2和 IGMP v1的区别的是()
A.IGMP v2与IGMP v1相比,增加了离开消息B.IGMP v2与IGMP v1相比,增加了特定组查询C.IGMP v2能从指定的组播源接收消息,IGMP vq不能D.IGMP v2和IGMP v1查询器的选举方式不一样
考题
如果一个网络中既有IGMPv1的路由器也有IGMPv2的路由器。那么IGMP v2路由器的工作状态应该为()。
A.IGMP v2的路由器将工作在IGMP v1的兼容模式，即所发送的协议报文兼容IGMP v1的协议报文格式B.IGMP v2的路由器将工作在IGMP v2的模式下而成为该LAN上的查询器，IGMP v1的路由器则无需处理C.当IGMP v2的路由器检测到网络中的IGMP v1路由器不存在后，将从IGMP v1的兼容模式自动切换到IGMP v2模式工作D.两种不同版本的路由器不能协同工作，需要保证LAN上的路由器工作在同一个版本
考题
PIM Hello消息的主要作用包括()。
A.周期性地向所有PIM路由器 224.0. 0.13发送Hello消息建立PIM邻居关系B.在多路访问网络上通过Hello消息来选择指定路由器(DR)C.同IGMP消息一样，维护接口与主机成员之间的关系D.当IGMP V1用于接口时，选择DR(IP地址最高者)同时作为IGMP V1查询器
考题
下列关于IGMP协议版本说法正确的有()。
A.IGMP v1相对IGMPv2来说，没有定义离开组消息和特定组查询消息，因此IGMP v1的路由器只能通过定时器机制来判断某个组内是否还存在成员;B.IGMP v1没有像v2那样明确定义查询器，所以IGMP v1中同一个LAN上的所有路由器都是查询器;C.IGMP v3增加了指定源和组成员报告消息，所以IGMP v3能够过滤某些源的组播数据流，而只接收特定源的组播数据流;D.IGMP v3同时兼容IGMP v2和IGMP v1，所以IGMP v3中也定义了相关v2和v1中所使用的消息。
考题
如果一个网络中既有IGMP v1的主机也有IGMP v2的主机,而路由器运行IGMP v2。那么网络上的路由器的工作状态应该为()。
A.IGMP v2的路由器将工作在IGMP v1的兼容模式，即所发送的协议报文兼容IGMP v1的协议报文格式B.IGMP v2的路由器将工作在IGMP v2的模式下，IGMP v1的主机无法接收组播数据流C.当IGMP v2的路由器检测到网络中的IGMP v1全部主机离开后，将从IGMP v1的兼容模式自动切换到IGMP v2模式工作D.两种不同版本的路由器和主机不能协同工作，需要保证LAN上的路由器和主机工作在同一个版本
考题
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.
考题
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
考题
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
考题
What is the purpose of IGMP in a multicast implementation？（）A、 it is not used in multicastB、 it determines the virtual address group for a multicast destinationC、 it dynamically registers individual hosts in a multicast group on a specific LAND、 it is used on WAN connections to determine the maximum bandwidth of a connectionE、 it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow
考题
关于IGMP-Snooping工作原理，正确的是（）。A、二层设备依靠IGMP-slooping侦听IGMP消息，在二层维护组播地址转发表项B、通过侦听IGMPQuery报文，IGMP-Snooping确定路由端口C、通过侦听IGMPReport报文，IGMP-Snooping添加端口到已知组播组或者建立新的组播转发表项
考题
某私网设备A的IP地址是192.168.1.1/24，其对应的公网IP地址是2.2.2.1；公网设备B的IP地址是2.2.2.5。若希望B能ping通A，可以在NAT设备上使用下列哪项配置？（）A、aclnumber2000；rule0permitsource192.168.1.10.0.0.255；nataddress-group12.2.2.1；interfaceEthernet0/1；natoutbound2000address-group1B、aclnumber2000；rule0permitsource192.168.1.10.0.0.255；nataddress-group12.2.2.1；interfaceEthernet0/1；natoutbound2000address-group1no-patC、natserverprotocolicmpglobal2.2.2.1inside192.168.1.1D、natserverprotocolicmpglobal192.168.1.1inside2.2.2.1
考题
私网设备A的IP地址是192.168.1.1/24，其对应的公网IP是2.2.2.1；公网设备B的IP地址是2.2.2.5。现需要设备A对公网提供Telnet服务，可以在NAT设备上使用下列哪项配置？（）A、aclnumber2000；rule0permitsource192.168.1.10.0.0.255；nataddress-group12.2.2.1；interfaceEthernet0/1；natoutbound2000address-group1B、aclnumber2000；rule0permitsource192.168.1.10.0.0.255；nataddress-group12.2.2.1；interfaceEthernet0/1；natoutbound2000address-group1no-patC、natserverprotocoltelnetglobal2.2.2.1inside192.168.1.1D、natserverprotocoltcpglobal2.2.2.1telnetinside192.168.1.1E、natserverprotocoltcpglobal2.2.2.123inside192.168.1.123
考题
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.
考题
Which statement about multicast VPN is true？（）A、The MDT group address should be the same for both address families in the same VRFB、The MDT group address should be the same for both address families in the different VRFsC、Configuration of the MDT source on a pre-VRF basis is supported only on IPv6D、The MDT group address should be different for both address families in the same VRF
考题
单选题Which statement about multicast VPN is true？（）A
The MDT group address should be the same for both address families in the same VRFB
The MDT group address should be the same for both address families in the different VRFsC
Configuration of the MDT source on a pre-VRF basis is supported only on IPv6D
The MDT group address should be different for both address families in the same VRF
考题
填空题IGMP（Internet Group Membership Protocol）采用D类IP地址生成多路广播的组。D类IP地址格式规定前面4位是（），后面28位用作多路广播地址。
考题
单选题What is the purpose of IGMP in a multicast implementation？（）A
it is not used in multicastB
it determines the virtual address group for a multicast destinationC
it dynamically registers individual hosts in a multicast group on a specific LAND
it is used on WAN connections to determine the maximum bandwidth of a connectionE
it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow
考题
单选题What is the purpose of IGMP in a multicast implementation?（）A
it is not used in multicastB
it determines the virtual address group for a multicast destinationC
it dynamically registers individual hosts in a multicast group on a specific LAND
it is used on WAN connections to determine the maximum bandwidth of a connectionE
it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow
考题
单选题What is the minimum configuration you must do in order to enable multicast support on the CiscoWireless LAN Controller v5.2?（）A
Enable the IGMP snooping capability and define the IGMP timeout period.B
Set the Ethernet multicast mode to Enabled， enable the IGMP snooping capability， and define the IGMP timeout period.C
Set the multicast monitor function to Enabled， enable the IGMP snooping capability， and define the mandatory data rate to the minimum value supported.D
Set the Ethernet multicast mode to Multicast and define the multicast group address.
考题
单选题设定路由器在指定备份组中工作为抢占模式的命令是（）A
standby[group-number]ip[virtual-address]B
standby[group-number]priority-value]C
standby[group-number]preemptD
standby[group-number]authentication[string]
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