Which three IP multicast address related statements are true?（）A、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3B、Because they would map to overlapping IP multicast MAC addresses, multicast addres

题目

Which three IP multicast address related statements are true?（）

  • A、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3
  • B、Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget her
  • C、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1
  • D、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers
  • E、The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses
  • F、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA
相似考题

1.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.A.numerousB.onlyC.singleD.multicast@@@SXB@@@A.withinB.out ofC.beyondD.cover@@@SXB@@@A.differentB.uniqueC.specialD.corresponding@@@SXB@@@A.rejectB.acceptC.discardD.transmit@@@SXB@@@A.multicastB.unicastC.broadcastD.multiple unicast

2.Which two multicast IP addresses can be represented by the multicast MAC addre ss 0100.5e0A.0A07?()A. 228.10.10.7B. 229.11.10.7C. 229.138.10.7D. 229.138.10.8E. 228.10.10.8F. 228.10.138.7

3.Which three IP addresses are valid multicast addresses?()A. 169.254.23.59B. 223.254.255.254C. 225.1.1.1D. 227.43.34.2E. 238.3.3.3F. 249.1.2.3

4.Which three IP multicast address related statements are true?()A.Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3B.Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget herC.Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1D.Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routersE.The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addressesF.Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA

参考答案和解析
正确答案:A,E,F
更多“Which three IP multicast address related statements are true?（）A、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3B、Because they would map to overlapping IP multicast MAC addresses, multicast addres”相关问题

  • 第1题：

    Which two multicast IP addresses can be represented by the multicast MAC address 0100.5e0A.0A07?()

    A. 228.10.10.7

    B. 229.11.10.7

    C. 229.138.10.7

    D. 229.138.10.8

    E. 228.10.10.8

    F. 228.10.138.7


    参考答案：A, C

  • 第2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3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4题：

    In computer networking a multicast address is an identifier for a group of hosts that have joined amulticast group. Multicast addressing can be used in the Link Layer （OSI Layer 2）， such as Ethernet Multicast， as well as at the Internet Layer （OSI Layer 3） as IPv4 or IPv6 Multicast. Whichtwo descriptions are correct regarding multicast addressing？（）

    • A、The first 23 bits of the multicast MAC address are 0x01-00-5E. This is a reserved value thatindicates a multicast application
    • B、The last 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application
    • C、To calculate the Layer 2 multicast address， the host maps the last 23 bits of the IP address intothe last 24 bits of the MAC address. The high-order bit is set to 0
    • D、The first 3 bytes （24 bits） of the multicast MAC address are 0x01-00-5E. This is a reservedvalue that indicates a multicast application

    正确答案:C,D

  • 第5题：

    Which three IP addresses are valid multicast addresses?（）

    • A、169.254.23.59
    • B、223.254.255.254
    • C、225.1.1.1
    • D、227.43.34.2
    • E、238.3.3.3
    • F、249.1.2.3

    正确答案:C,D,E

  • 第6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7题：

    Which two multicast IP addresses can be represented by the multicast MAC address 0100.5e0A.0A07?（）

    • A、228.10.10.7
    • B、229.11.10.7
    • C、229.138.10.7
    • D、229.138.10.8
    • E、228.10.10.8
    • F、228.10.138.7

    正确答案:A,C

  • 第8题：

    Which two statements are true about the primary address on an interface? （）

    • A、It is the address used by default as the local address for broadcast and multicast packets sourced locally and sent out of the interface
    • B、You use the primary address when you have multiple IP addresses belonging to the same subnet on the same inteface
    • C、It can be useful for selecting the local address used for packets sent out of unnumbered interfaces when multiple non-127 addresses are configured on the loopback interface
    • D、By default, the primary address on an interface is selected as the nmerically highest local address configured on the interface

    正确答案:A,C

  • 第9题：

    多选题
    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
    解析： 暂无解析

  • 第10题：

    多选题
    Which three IP addresses are valid multicast addresses?（）
    A

    169.254.23.59

    B

    223.254.255.254

    C

    225.1.1.1

    D

    227.43.34.2

    E

    238.3.3.3

    F

    249.1.2.3


    正确答案： A,C
    解析： 暂无解析

  • 第11题：

    多选题
    Which two statements are true about the primary address on an interface?（）
    A

    It is the address used by default as the local address for broadcast and multicast packets sourced locally and sent out of the interface.

    B

    You use the primary address when you have multiple IP addresses belonging to the same subnet on the same interface.

    C

    It can be useful for selecting the local address used for packets sent out of unnumbered interfaces when multiple non-127 addresses are configured on the loopback interface.

    D

    By default, the primary address on an interface is selected as the numerically highest local address configured on the interface.


    正确答案： A,C
    解析： 暂无解析

  • 第12题：

    多选题
    Which three IP multicast address related statements are true？ （Choose three.） （）
    A

    Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted  with Time to Live （TTL） greater than 1.

    B

    Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.

    C

    Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and  IGMPv3.

    D

    Because they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1  and 238.1.1.1 could not be used together.

    E

    Multicast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANA

    F

    The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in  purpose to RFC 1918 private unicast addresses.


    正确答案： A,B
    解析： 暂无解析

  • 第13题：

    Which two design concerns must be addressed when designing a multicast implementation?()

    A. only the low-order 23 bits of the MAC address are used to map IP addresses

    B. only the low-order 24 bits of the MAC address are used to map IP addresses

    C. only the high-order 23 bits of the MAC address are used to map IP addresses

    D. only the low-order 23 bits of the IP address are used to map MAC addresses

    E. the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses

    F. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses


    参考答案：A, F

  • 第14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15题：

    Which two design concerns must be addressed when designing a multicast implementation?（）

    • A、only the low-order 23 bits of the MAC address are used to map IP addresses
    • B、only the low-order 24 bits of the MAC address are used to map IP addresses
    • C、only the high-order 23 bits of the MAC address are used to map IP addresses
    • D、only the low-order 23 bits of the IP address are used to map MAC addresses
    • E、the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses
    • F、the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses

    正确答案:A,F

  • 第16题：

    Which three IP multicast address related statements are true？ （Choose three.） （） 

    • A、Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted  with Time to Live （TTL） greater than 1.
    • B、Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers.
    • C、Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link-local addresses used by PIMv2 and  IGMPv3.
    • D、Because they would map to overlapping IP multicast MAC addresses， multicast addresses 224.0.1.1  and 238.1.1.1 could not be used together.
    • E、Multicast address 224.0.1.1 has been reserved for the Network Time Protocol （NTP） by the IANA
    • F、The administratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in  purpose to RFC 1918 private unicast addresses.

    正确答案:C,E,F

  • 第17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18题：

    Which two multicast IP addresses can be represented by the multicast MAC addre ss 0100.5e0A.0A07?（）

    • A、228.10.10.7
    • B、229.11.10.7
    • C、229.138.10.7
    • D、229.138.10.8
    • E、228.10.10.8
    • F、228.10.138.7

    正确答案:A,C

  • 第19题：

    Which two statements are true about the primary address on an interface?（）

    • A、It is the address used by default as the local address for broadcast and multicast packets sourced locally and sent out of the interface.
    • B、You use the primary address when you have multiple IP addresses belonging to the same subnet on the same interface.
    • C、It can be useful for selecting the local address used for packets sent out of unnumbered interfaces when multiple non-127 addresses are configured on the loopback interface.
    • D、By default, the primary address on an interface is selected as the numerically highest local address configured on the interface.

    正确答案:A,C

  • 第20题：

    多选题
    Which three IP multicast address related statements are true?（）
    A

    Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3

    B

    Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget her

    C

    Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1

    D

    Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers

    E

    The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses

    F

    Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA


    正确答案： C,F
    解析： 暂无解析

  • 第21题：

    多选题
    Which two multicast IP addresses can be represented by the multicast MAC addre ss 0100.5e0A.0A07?（）
    A

    228.10.10.7

    B

    229.11.10.7

    C

    229.138.10.7

    D

    229.138.10.8

    E

    228.10.10.8

    F

    228.10.138.7


    正确答案： D,E
    解析： 暂无解析

  • 第22题：

    多选题
    Which two statements are true about the primary address on an interface? （）
    A

    It is the address used by default as the local address for broadcast and multicast packets sourced locally and sent out of the interface

    B

    You use the primary address when you have multiple IP addresses belonging to the same subnet on the same inteface

    C

    It can be useful for selecting the local address used for packets sent out of unnumbered interfaces when multiple non-127 addresses are configured on the loopback interface

    D

    By default, the primary address on an interface is selected as the nmerically highest local address configured on the interface


    正确答案： B,C
    解析： 暂无解析

  • 第23题：

    多选题
    Which two multicast IP addresses can be represented by the multicast MAC address 0100.5e0A.0A07?（）
    A

    228.10.10.7

    B

    229.11.10.7

    C

    229.138.10.7

    D

    229.138.10.8

    E

    228.10.10.8

    F

    228.10.138.7


    正确答案： C,B
    解析： 暂无解析

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