简述Ethernet和Token-Ring这两种局域网工作原理。

在TOKEN-RING的帧格式中，目的地址字段为全1的地址是表示（）。

A:单地址 B:广播地址 C:组地址 D:无效地址

(100) whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in (101) high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and (102) which fast LAN technology to choose is critical for (103) network performance problems and (104) costly purchasing mistakes.

A:avoiding  B:clipping  C:choosing  D:deciding  E:dissolving  F:ensuring  G:evolving  H:implementing  I:I.Knowing  J:J.solving

(100) whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in (101) high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and (102) which fast LAN technology to choose is critical for (103) network performance problems and (104) costly purchasing mistakes.

A:avoiding B:clipping C:choosing D:deciding E:dissolving F:ensuring G:evolving H:implementing I:I.Knowing J:J.solving

(100) whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in (101) high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and (102) which fast LAN technology to choose is critical for (103) network performance problems and (104) costly purchasing mistakes.

A:avoiding B:clipping C:choosing D:deciding E:dissolving F:ensuring G:evolving H:implementing I:I.Knowing J:J.solving

(100) whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in (101) high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and (102) which fast LAN technology to choose is critical for (103) network performance problems and (104) costly purchasing mistakes.

A:avoiding B:clipping C:choosing D:deciding E:dissolving F:ensuring G:evolving H:implementing I:I.Knowing J:J.solving

(100) whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in (101) high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and (102) which fast LAN technology to choose is critical for (103) network performance problems and (104) costly purchasing mistakes.

A:avoiding B:clipping C:choosing D:deciding E:dissolving F:ensuring G:evolving H:implementing I:I．Knowing J:J．solving

(100) whether to go with a shared or switched fast LAN technology once you start to max out your shared Ethernet of token-ring LAN is tough call. Users and analysts involved in (101) high-speed LANs have learned the benefits of each. However, there are trade-offs to each, and (102) which fast LAN technology to choose is critical for (103) network performance problems and (104) costly purchasing mistakes.

A:avoiding B:clipping C:choosing D:deciding E:dissolving F:ensuring G:evolving H:implementing I:I．Knowing J:J．solving