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試題1
以下關(guān)于結(jié)構(gòu)化開發(fā)方法的敘述中,不正確的是(1)。查看答案
試題參考答案:C
試題2
OSPF網(wǎng)絡(luò)可以劃分為多個(gè)區(qū)域(area),下面關(guān)于區(qū)域的描述中錯(cuò)誤的是( )。查看答案
試題參考答案:B
試題3
對(duì)十進(jìn)制數(shù)47和0.25分別表示為十六進(jìn)制形式,為( )。查看答案
試題參考答案:A
試題4
計(jì)算機(jī)系統(tǒng)中廣泛采用了RAID技術(shù),在各種RAID技術(shù)中,磁盤容量利用率最低的是 ( ) 。
A、RAID0
B、RAID1
C、RAID3
D、RAID5
查看答案
試題參考答案:B
試題5
關(guān)于操作系統(tǒng)的描述中,錯(cuò)誤的是( ?。?。查看答案
試題參考答案:D
試題6
下面的交換機(jī)命令中哪一條為端口指定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
試題參考答案:D
試題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
試題參考答案:B、A、A、C、D
試題8
100BASE-FX采用的編碼技術(shù)為( )。查看答案
試題參考答案:B
試題9
一家連鎖店需要設(shè)計(jì)一種編址方案來支持全國各個(gè)門店銷售網(wǎng)絡(luò),門店有300家左右,每個(gè)門店一個(gè)子網(wǎng),每個(gè)子網(wǎng)終端最多50臺(tái)電腦,該連鎖店從ISP處得到一個(gè)B類地址,應(yīng)該采用的子網(wǎng)掩碼是( )。查看答案
試題參考答案:A
試題10
結(jié)構(gòu)化綜合布線系統(tǒng)分為六個(gè)子系統(tǒng),其中水平子系統(tǒng)的作用是(66),干線子系統(tǒng)的作用是(67)。查看答案
試題參考答案:C、A
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