(1) is a channel’s capacity which directly reflects the data transfer rate of the channel． z9 S8 n M; G* {
(2)functions in a NetWare network which is used to define addressing schemes．0 y5 I. \! y; R" S9 k8 g2 z1 d
(3)is a network layer device that supports multiple LAN interfacesand segments LANs into smaller collision and broadcast domains.& y: z# ^5 W. ?* r: J
(4)is the popular LAN developed under the direction of the IEEE802．3.
+ d. m# F0 \0 x( ~ (5)is a device which enables digital microcomputers to communicate across analog telephone lines.
b- O! [* m4 |; Z& p8 B) t, q (1)A．The volume9 w0 a8 g2 A2 R+ }* {" W
B．The bandwidth
6 U: _. J( E$ s C．The noise! Y, g' s5 q0 ] j0 V4 n
D．The delay
5 s/ F8 d4 m6 q (2)A．NetBEUI
# T7 S0 {& Q& e8 O/ F B．IP + B' k1 k( n& G( u$ r- e8 b/ [. ?/ w; i
C．IPX' ^% S! K9 X2 i/ k/ h) S
D.NCP
! O2 W& v0 D" k4 W o8 l2 ? (3)A．The repeater" w( m- w1 `' G% m, Y
B．The hub y8 b' n7 n, u$ j
C．The bridge2 e, H7 N; F4 n/ X& s; p& O4 C
D．The muter
% W1 R1 @) {+ i7 W. A% A3 G* ?( F) | (4)A．Token Ring' s" e# d" x9 u/ J+ J
B．Token Bus
" K7 h+ d0 `, R: ?( N2 ^8 I C．Ethernet
' P q7 X: N; q D．FDDI* i k: Q2 u% l8 z0 v$ _8 g
(5)A．The repeater. ? c _2 q. Y3 V
B．The modem9 _; m" z7 E+ f6 g& @
C．The hub
5 s, L R+ h, {' B+ [) K, t( |, q+ ] D.The printer s2 w/ n2 \ C
答案：(1)B (2)C (3)D (4)C (5)B
: K2 S* Q4 o' I; N* ?8 y! Z. p 解析：带宽是指信道的容量，它能够直接反映出信道数据传输速率。+ J7 |) c8 m9 X: f h
IPX作用在Netware网络中。目的是定义寻址方法。
9 m2 U- c! T1 ` 路由器是网络层设备。支持多局域网接口，并把局域网分为更小冲突域和广播域。& R9 K' D. B4 l% B7 i$ @
以太网是在IEEE802．3标准的基础上发展起来的流行网络。( T" T: I* I0 X& Y S
调制解调器是一种能使得数字信号通过模拟线路进行通信的设备。 |
发表于 2012-8-2 08:55:16
