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网络工程师每日一练试题内容(2022/7/29)
试题1
以下关于结构化开发方法的叙述中,不正确的是(1)。查看答案
试题参考答案:C
试题2
OSPF网络可以划分为多个区域(area),下面关于区域的描述中错误的是( )。查看答案
试题参考答案:B
试题3
对十进制数47和0.25分别表示为十六进制形式,为( )。查看答案
试题参考答案:A
试题4
计算机系统中广泛采用了RAID技术,在各种RAID技术中,磁盘容量利用率最低的是 ( ) 。
A、RAID0
B、RAID1
C、RAID3
D、RAID5
查看答案
试题参考答案:B
试题解析与讨论:www.cnitpm.com/st/87193002.html
试题5
关于操作系统的描述中,错误的是( )。查看答案
试题参考答案:D
试题6
下面的交换机命令中哪一条为端口指定VLAN? ( )
A、S1(config-if)# vlan-membership static
B、S1(config-if)# vlan database
C、S1(config-if)# switchport mode access
D、S1(config-if)# switchport access vlan 1
查看答案
试题参考答案:D
试题解析与讨论:www.cnitpm.com/st/87133000.html
试题7
The traditional way of allocating a single channel among multiple competing users is to chop up its (1) by using one of the multiplexing schemes such as FDM (Frequency
Division Multiplexing). If there are N users, the bandwidth is divided into N equal-sized portions, with each user being assigned one portion. Since each user has a private frequency (2), there is no interference among users.When there is only a small and constant number of users, each of which has a steady stream or a heavy load of (3), this division is a simple and efficient allocation mechanism. A wireless example is FM radio stations. Each station gets a portion of the FM band and uses it most of the time to broadcast its signal.However, when the number of senders is large and varying or the traffic is (4), FDM presents some problems. If the spectrum is cut up into N regions while fewer than N users are currently interested in communicating, a large piece of valuable spectrum will be wasted. If more than N users want to communicate, some of them will be denied (5) for lack of bandwidth.„„
(1)A.capability
B.capacity
C.ability
D.power
(2)A.band
B.range
C.domain
D.assignment
(3)A.traffic
B.date
C.bursty
D.flow
(4)A.continuous
B.steady
C.bursty
D.flow
(5)A.allowance
B.connection
C.percussion
D.percussion
查看答案
试题参考答案:B、A、A、C、D
试题8
100BASE-FX采用的编码技术为( )。查看答案
试题参考答案:B
试题解析与讨论:www.cnitpm.com/st/453863500.html
试题9
一家连锁店需要设计一种编址方案来支持全国各个门店销售网络,门店有300家左右,每个门店一个子网,每个子网终端最多50台电脑,该连锁店从ISP处得到一个B类地址,应该采用的子网掩码是( )。查看答案
试题参考答案:A
试题10
结构化综合布线系统分为六个子系统,其中水平子系统的作用是(66),干线子系统的作用是(67)。查看答案
试题参考答案:C、A
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