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What is the purpose of the WLC Controller->Multicast->IGMP T

题目
单选题
What is the purpose of the WLC Controller->Multicast->IGMP Timeout feature operating on v5.2?（）
A

to determine if there are more clients that are using the multicast stream

B

to limit the time that a client has to request an IGMP join to the controller multicast group

C

to determine if the multicast router is still alive and responding to multicast clients

D

to remove clients from the multicast group if the multicast traffic exceeds the allotted bandwidth allowed  for multicast clients

参考答案和解析
正确答案： D
解析： 暂无解析
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相似问题和答案

第1题：

What are three methods that may be use d to allow a switch to determine which ports to forward IP multicast messages to?（）

  • A、IGMP
  • B、IGMP snooping
  • C、PIM
  • D、CGMP
  • E、static assignment
  • F、CDP

正确答案:B,D,E

第2题：

What is the purpose of IGMP in a multicast implementation？（）

  • A、 it is not used in multicast
  • B、 it determines the virtual address group for a multicast destination
  • C、 it dynamically registers individual hosts in a multicast group on a specific LAN
  • D、 it is used on WAN connections to determine the maximum bandwidth of a connection
  • E、 it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow

正确答案:C

第3题：

Diagnostic test is often used for the purpose of__________.


A.finding out what students know and don' t know

B.measuring students' general language proficiency

C.knowing whether students have the right language aptitude

D.checking whether students have achieved the teaching objectives

答案：A
解析：
考查语言测试类型。题干意思是：诊断性测试的主要目的是什么诊断性测试是语言测试的一种类型，它主要用来探测和发现学生的理解和表达障碍．以便教师及时改进教学手段．从而积极地干预学习过程。诊断性测试常常基于教师的教学经验和学生对某些语言点尚未完全掌握所表现出的种种迹象来命题。其成绩一般不用来衡量和评估学生的语言水平。因此只有A项“发现学生知道什么和不知道什么”符合题意。B项属于水平测试(proficiency test)，C项属于能力测试(aptitude test)，D项属于学业成绩测试(achievementtest)。故选A。

第4题：

What is the purpose of the Route Tag field in the RIPv2 message？


正确答案:When another routing protocol uses the RIPv2 domain as a transit domain， the protocol external to RIPv2 can use the Route Tag field to communicate information to its peers on the other side of the RIPv2 domain.

第5题：

What is the purpose of the WLC Controller->Multicast->IGMP Timeout feature operating on v5.2?（）

  • A、to determine if there are more clients that are using the multicast stream
  • B、to limit the time that a client has to request an IGMP join to the controller multicast group
  • C、to determine if the multicast router is still alive and responding to multicast clients
  • D、to remove clients from the multicast group if the multicast traffic exceeds the allotted bandwidth allowed  for multicast clients

正确答案:A

第6题：

what device sends IGMP Query messages？


正确答案:If using IGMP v1， DR selected via multicast routing protocol will send IGMP query message. If using IGMP v2，querier selected using IGMP query messages will send IGMP query messages. IGMP Query messages are sent by routers. If more than one router is attached to the subnet， the router with the lowest IP address is the querier.

第7题：

Nexus# sh ip igmp snooping vlan 120   IGMP Snooping information for vlan 120   IGMP snooping disabled   Optimised Multicast Flood （OMF） disabled   IGMP querier none  Switch-querier enabled， address 1.1.1.1， currently not running  IGMPv3 Explicit tracking enabled  IGMPv2 Fast leave disabled  IGMPv1/v2 Report suppression enabled  IGMPv3 Report suppression disabled  Link Local Groups suppression enabled  Router port detection using PIM Hellos， IGMP Queries  Number of router-ports： 0  Number of groups： 0   Active ports： Po100 Po111  Which statement best describes what is depicted in the show command output？（）

  • A、 IGMP snooping is not active for VLAN 120 because the IGMP feature has not been enabled on the switch with the feature igmp command.
  • B、 The IGMP snooping querier for VLAN 120 is not in a running state because the Loopback interface configured with 1.1.1.1/32 is currently in a down state.
  • C、 IGMP snooping has been disabled on the VLAN 120 SVI.
  • D、 IGMP snooping has been disabled for VLAN 120 in VLAN configuration mode.
  • E、 IGMP snooping is not active for VLAN 120 because VLAN 120 does not exist in the VLAN database.

正确答案:D

第8题：

Diagnostic test is often used for the purpose of


A.finding out what students know and don' t know

B.measuring students' general language proficiency

C.knowing whether students have the right language aptitude

D.checking whether students have achieved the teaching objectives

答案：A
解析：
考查语言测试类型。题干意思是：诊断性测试的主要目的是什么诊断性测试是语言测试的一种类型，它主要用来探测和发现学生的理解和表达障碍，以便教师及时改进教学手段，从而积极地干预学习过程。诊断性测试常常基于教师的教学经验和学生对某些语言点尚未完全掌握所表现出的种种迹象来命题。其成绩一般不用来衡量和评估学生的语言水平。因此只有A项“发现学生知道什么和不知道什么”符合题意。B项属于水平测试(proficiencytest)，C项属于能力测试(aptitudetest)，D项属于学业成绩测试(achievementtest)。故选A。

第9题：

What is the purpose of an administrative distance？


正确答案:An administrative distance is a rating of preference for a routing protocol or a static route. When a router learns of a destination via more than one routing protocol or static route， AD will be used to choose the route with the lowest value.

第10题：

Which statement best describes what is depicted in the show command output？（）

  • A、 IGMP snooping is not active for VLAN 120 because the IGMP feature has not been enabled on the switch with the feature igmp command.
  • B、 The IGMP snooping querier for VLAN 120 is not in a running state because the Loopback interface configured with 1.1.1.1/32 is currently in a down state.
  • C、 IGMP snooping has been disabled on the VLAN 120 SVI.
  • D、 IGMP snooping has been disabled for VLAN 120 in VLAN configuration mode.
  • E、 IGMP snooping is not active for VLAN 120 because VLAN 120 does not exist in the VLAN database.

正确答案:D

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