Refer to the exhibit. IP multicast for group address 224.1.1.1 has been enabled on all router s in the network. Hosts on Network A receive the multicast traffic. However, hosts on Network B do not. On the basis of outputs provided, what could be the cause
题目
Refer to the exhibit. IP multicast for group address 224.1.1.1 has been enabled on all router s in the network. Hosts on Network A receive the multicast traffic. However, hosts on Network B do not. On the basis of outputs provided, what could be the cause of the problem? （）
A. The route to 224.69.15.0/24 will be out Ethernet 0
B. The reverse path forwarding (RPF) for the route 224.2.0.1 failed to find the interface on which the multicast packet was rece ived
C. Multicast route to 224.69.15.0/24 was added to the mroute table and created by a source directly connected to the router
D. Multicast route to 10.16.0.0/16 was added to the mroute table and created by a source directly connected to the router
E. This router received an IGMP host report from a group member or a PIM join message
相似考题
更多“Refer to the exhibit. IP multicast for group address 224.1.1.1 has been enabled on all rou ”相关问题
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第1题：
Refer to the exhibit. All routers have Protocol Independent Multicast (PIM) enabled interfaces. On the basis of the configuration provided on routers R1 and R2, which router will take on the func tion of rendezvous point (RP) for the multicast network? （）
A. both routers R1 and R2
B. router R1
C. router R2
D. none of the routers since they are not configured with static RP
参考答案：C
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第2题：
Refer to the exhibit. What two statements are true?()
A. This is the designated router (DR) on the FastEthernet 0/0 link.
B. The output was generated by the show ip interface c ommand.
C. The router was configured with the commands:r outer ospf 1 network 172.16.6.0 0.0.0.255 area 1
D. The IP address of the backup designated router (BDR) is FE80::205:5FFF:FED3:5808.
E. Interface FastEthernet 0/0 was configured with the ipv6 o spf 1 area 1 command.
F. OSPF version 2 has been enabled to support IPv6.
参考答案：D, E
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第3题：
Refer to the exhibit. Switch port FastEthernet 0/24 on AlSwitch1 will be used to create an IEEE 802.1Q- complaint trunk to another switch. Based on the output shown, What is the reason the trunk does not form, even thought the proper cabling has been attached?（）
A.VLANs have not been created yet
B.An IP address must be configured for the port
C.The port is currently configured for access mode
D.The correct encapsulation type has not been configured
E.The no shutdown command has not been entered for the port
参考答案：C
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第4题：
Typically, an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks. Such addresses are referred to as multicast addresses, and the act of sending a packet from a source to the members of a （1）group is referred to as multicasting. Multicasting done （2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the （3）multicast group recognize the multicast address and （4）the packet. In this case, only a single copy of the packet is ever transmitted. This technique works because of the （5）nature of a LAN: A transmission from any one station is received by all other station on the LAN.
空白（3）应选（ ）。
A. Different
B. unique
C. special
D. corresponding答案：D解析：一般来说，一个IP地址对应网络上的一台主机。IP地址还能标识一组或多个网络上的主机组的地址，这种地址叫IP组播地址，把数据源发出的数据包传送给相应组播组成员的过程叫组播。组播在单一局域网段是直接传送的，使用IEEE802以及一些局域网协议如物理层协议。当包含一个组播地址的数据包在局域网段传输时，属于接收数据的组播组中的工作站能够识别这个地址并接收数据包。采用这种方式只需传送一份数据包副本，这是因为局域网是广播通信这个性质：即由一个工作站发出的数据可以被同一局域网内的所有工作站接收。 -
第5题：
What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?（）
- A、Route reflectors are not passing updates properly.
- B、BGP synchronization has been enabled.
- C、The next-hop address is unreachable.
- D、No loopback interface has been configured on a router.
正确答案:B -
第6题：
Which three attributes are carried in a source active message?（）
- A、NLRI information
- B、IP address of originating RP
- C、address of multicast source
- D、all active RPs in the local domain
- E、group address to which the source is sending
正确答案:B,C,E -
第7题：
Which three IP multicast group concepts are true?（）
- A、If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
- B、A router does not have to be a member of a multicast group to recei ve multicast data.
- C、A router must be a member of a multicast group to send to the group.
- D、A router does not have to be a member of a multicast group to send to the group.
- E、If a packet is sent to a multicast group address, all members of the multic ast group will receive it.
- F、A router must be a member of a multicast group to receive multicast data.
正确答案:D,E,F -
第8题：
Which three IP multicast group concepts are true？ （Choose three.） （）
- A、 If a packet is sent to a multicast group address， all members of the multicast group will receive it
- B、 If a packet is sent to a multicast group address， the multicast frame contains the source multicast address
- C、 A router does not have to be a member of a multicast group to receive multicast data.
- D、 A router does not have to be a member of a multicast group to send to the group.
- E、 A router must be a member of a multicast group to receive multicast data.
- F、 A router must be a member of a multicast group to send to the group.
正确答案:A,D,E -
第9题：
多选题Which three IP multicast group concepts are true？ （Choose three.） （）AIf a packet is sent to a multicast group address， all members of the multicast group will receive it
BIf a packet is sent to a multicast group address， the multicast frame contains the source multicast address
CA router does not have to be a member of a multicast group to receive multicast data.
DA router does not have to be a member of a multicast group to send to the group.
EA router must be a member of a multicast group to receive multicast data.
FA router must be a member of a multicast group to send to the group.
正确答案： E,B解析： 暂无解析 -
第10题：
多选题Which three IP multicast related statements are true？ （Choose three.） （）AMulticast addresses 224.0.1.0 through 238.255.255.255 are called globally scoped addresses. They are used to multicast data between organizations and across the Internet
BThe multicast address 224.0.0.1 is a globally scoped address that has been reserved for the Network Time Protocol （NTP） by the IANA
CMulticast addresses 239.0.0.0 through 239.255.255.255 are called limited scope addresses. They are constrained to a local group or organization
DMulticast addresses 224.0.0.5 and 224.0.0.6 are limited scoped addresses that have been reserved for OSPF
EMulticast addresses 224.0.0.0 through 224.0.0.255 are used for network protocols on local LAN segments. Because they are always transmitted with a Time to Live （TTL） of 1， they are never forwarded by a router
正确答案： A,E解析： 暂无解析 -
第11题：
多选题Refer to the exhibit. A customer indicates their teleworkers plan to use IP phones in their home offices. The IT department has surveyed the planned teleworkers, resulting in the user groupings shown in the exhibit. To provide the highest voice quality, the best recommendations to this customer are（）.ADeploy all three groups with a QoS service policy, choosing the parameters for Traffic Shaping based on the average uplink speed across the three groups.
BTeleworkers in Groups A and B should inquire with their DSL providers for subscriptions with higher uplink bandwidths.
CTeleworkers in Group C should change their subscriptions to DSL for deployment consistency.
DTeleworkers in Group A should upgrade their subscription to obtain static IP addresses
ETeleworkers in Group A should inquire with their DSL providers for subscriptions with higher downlink bandwidths.
正确答案： D,B解析： 暂无解析 -
第12题：
单选题What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?（）ARoute reflectors are not passing updates properly.
BBGP synchronization has been enabled.
CThe next-hop address is unreachable.
DNo loopback interface has been configured on a router.
正确答案： C解析： 暂无解析 -
第13题：
Refer to the exhibit. IP multicast configuration changes have been made on several routers.However, the IP multicast table displayed in the exhibit still does not reflect the changes. What should be done to display the new routing table information? （）
A. Issue the clear ip route * privileged EXEC command.
B. Issue the clear ip igmp group privileged EXEC command.
C. Issue the no ip mroute - cache privileged EXEC command.
D. Issue the clear ip mroute privileged EXEC command.
参考答案：D
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第14题：
Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However, R1 does not show R2 as a neighbor and does not accept routing updates from R2.What could be the cause of the problem?()
A. The no auto - summary command has not been issued under the EIGRP process on both routers.
B. Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24.
C. EIGRP cannot exchange routing updates with a neighbor‘s router interface that is configured with tw o IP addresses.
D. EIGRP cannot form neighbor relationship and exchange routing updates with a secondary address.
参考答案：D
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第15题：
Typically, an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks. Such addresses are referred to as multicast addresses, and the act of sending a packet from a source to the members of a （1）group is referred to as multicasting. Multicasting done （2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the （3）multicast group recognize the multicast address and （4）the packet. In this case, only a single copy of the packet is ever transmitted. This technique works because of the （5）nature of a LAN: A transmission from any one station is received by all other station on the LAN.
空白（5）应选（ ）。
A. Multicast
B. unicast
C. broadcast
D. multiple unicast答案：C解析：一般来说，一个IP地址对应网络上的一台主机。IP地址还能标识一组或多个网络上的主机组的地址，这种地址叫IP组播地址，把数据源发出的数据包传送给相应组播组成员的过程叫组播。组播在单一局域网段是直接传送的，使用IEEE802以及一些局域网协议如物理层协议。当包含一个组播地址的数据包在局域网段传输时，属于接收数据的组播组中的工作站能够识别这个地址并接收数据包。采用这种方式只需传送一份数据包副本，这是因为局域网是广播通信这个性质：即由一个工作站发出的数据可以被同一局域网内的所有工作站接收。 -
第16题：
Typically，an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a （71）group is referred to as multicasting. Multicasting done （72） the scope of a single LAN segment is straight forward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN segment.Those stations that are members of the （73）multicast group recognize the multicast address and （74）the packet.In this case,only a single copy of the packet is ever transmitted.This technique works because of the （本题）nature of a LAN:A transmission from any one station is received by all other stations on the LAN.
A .multicast
B. unicast
C.broadcast
D.multiple unicast答案：C解析： -
第17题：
Which three IP multicast group concepts are true?（）
- A、If a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
- B、A router does not have to be a member of a multicast group to receive multicast data.
- C、A router must be a member of a multicast group to send to the group.
- D、A router does not have to be a member of a multicast group to send to the group.
- E、If a packet is sent to a multicast group address, all members of the multicast group will rece ive it.
- F、A router must be a member of a multicast group to receive multicast data.
正确答案:D,E,F -
第18题：
A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG. For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）
- A、When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.
- B、 When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.
- C、When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.
- D、When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.
- E、None of the other answers is correct.
正确答案:E -
第19题：
Multicast is being deployed in the network， and only ip pim sparse-dense mode has been configured on all interfaces in the network to support a new video streaming application. No other multicast configuration was applied anywhere in the network. Since enabling multicast， the network monitoring tools show periodic spikes in link utilization throughout the network， even in areas where the video application is not being used. What could be a possible cause？（）
- A、PIM sparse mode is being used.
- B、PIM dense mode is being used.
- C、The BGP multicast address family has not been configured.
- D、IGMP version 3 is being used.
- E、IP PIM neighbor filters have not been applied.
正确答案:B -
第20题：
Which three IP multicast related statements are true？ （Choose three.） （）
- A、 Multicast addresses 224.0.1.0 through 238.255.255.255 are called globally scoped addresses. They are used to multicast data between organizations and across the Internet
- B、 The multicast address 224.0.0.1 is a globally scoped address that has been reserved for the Network Time Protocol （NTP） by the IANA
- C、 Multicast addresses 239.0.0.0 through 239.255.255.255 are called limited scope addresses. They are constrained to a local group or organization
- D、 Multicast addresses 224.0.0.5 and 224.0.0.6 are limited scoped addresses that have been reserved for OSPF
- E、 Multicast addresses 224.0.0.0 through 224.0.0.255 are used for network protocols on local LAN segments. Because they are always transmitted with a Time to Live （TTL） of 1， they are never forwarded by a router
正确答案:A,C,E -
第21题：
多选题Which three IP multicast group concepts are true?（）AIf a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
BA router does not have to be a member of a multicast group to receive multicast data.
CA router must be a member of a multicast group to send to the group.
DA router does not have to be a member of a multicast group to send to the group.
EIf a packet is sent to a multicast group address, all members of the multicast group will rece ive it.
FA router must be a member of a multicast group to receive multicast data.
正确答案： B,A解析： 暂无解析 -
第22题：
多选题Which three IP multicast group concepts are true?（）AIf a packet is sent to a multicast group address, the multicast frame contains the source multicast address.
BA router does not have to be a member of a multicast group to recei ve multicast data.
CA router must be a member of a multicast group to send to the group.
DA router does not have to be a member of a multicast group to send to the group.
EIf a packet is sent to a multicast group address, all members of the multic ast group will receive it.
FA router must be a member of a multicast group to receive multicast data.
正确答案： F,D解析： 暂无解析 -
第23题：
单选题Multicast is being deployed in the network， and only ip pim sparse-dense mode has been configured on all interfaces in the network to support a new video streaming application. No other multicast configuration was applied anywhere in the network. Since enabling multicast， the network monitoring tools show periodic spikes in link utilization throughout the network， even in areas where the video application is not being used. What could be a possible cause？（）APIM sparse mode is being used.
BPIM dense mode is being used.
CThe BGP multicast address family has not been configured.
DIGMP version 3 is being used.
EIP PIM neighbor filters have not been applied.
正确答案： B解析： 暂无解析