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網(wǎng)絡工程師每日一練試題內(nèi)容(2024/9/29)
試題1
在Windows的cmd命令窗口中輸入( )命令可以用來診斷域名系統(tǒng)基礎結(jié)構(gòu)的信息和查看DNS服務器的IP地址。
A.DNSserver
B.DNSconfig
C.Nslookup
D.DNSnamed
查看答案
試題參考答案:C
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題2
網(wǎng)絡管理員用netstat命令監(jiān)測系統(tǒng)當前的連接情況,若要顯示所有80端口的網(wǎng)絡連接,則應該執(zhí)行的命令是( )。查看答案
試題參考答案:B
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題3
下列選項中,不采用虛電路通信的網(wǎng)絡是( )網(wǎng)。查看答案
試題參考答案:D
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題4
HFC網(wǎng)絡中,從運營商到小區(qū)采用的接入介質(zhì)為( ),小區(qū)入戶采用的接入介質(zhì)為( )。查看答案
試題參考答案:D、C
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題5
IPv6地址的格式前綴用于表達地址類型或子網(wǎng)地址,例如60位地址12AB00000000CD3有多種合法的表示形式,下面的選項中,不合法的是( )。查看答案
試題參考答案:C
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題6
一臺運行 OSPF 路由協(xié)議的路由器,轉(zhuǎn)發(fā)接口為 100Mbps,其 cost 值應該是()。查看答案
試題參考答案:A
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題7
CDMA for cellular systems can be described as follows.AS with FDMA,ech cell is allocated a frequency(1),which is split into two parts,half for reverse(mobile unit to base station)and half for(2)(base station to mobile unit).For full-duplex(3).A mobile unit uses both reverse and forward channels.Transmission is in the form of direct-sequence spread(4),which uses a chipping code to increase the data rate of the transmission,resulting in an increated signal bandwidth.Multiple access is provided by assigning(5)chipping codes to multiple users,so that the receiver can recover the transmission of an individual unit from multiple transmission.查看答案
試題參考答案:C、A、D、B、B
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題8
以太網(wǎng)中采用了二進制指數(shù)后退算法,這個算法的特點是 ( ) 。
A、網(wǎng)絡負載越輕,可能后退的時間越長
B、網(wǎng)絡負載越重,可能后退的時間越長
C、使用網(wǎng)絡既可以適用于突發(fā)性業(yè)務,也可以適用于流式業(yè)務
D、可以動態(tài)地提高網(wǎng)絡發(fā)送的優(yōu)先級
查看答案
試題參考答案:B
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題9
為了方便運維人員遠程維護Windows Server2008 R2服務器,需要在服務器上啟用()服務。查看答案
試題參考答案:D
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
試題10
下列不屬于雙絞線測試參數(shù)的是()。查看答案
試題參考答案:C
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/9/29
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