专业技术高级资格网络规划设计师综合知识2017年下半年网络规划设计师上午试卷
题目内容

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.Sunch 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 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 （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 （75）nature of a LAN:A transmission from any one station is received by all other stations on the LAN.

2024-07-09

A.numerous

B.only

C.single

D.multicast

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