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網(wǎng)絡(luò)工程師每日一練試題內(nèi)容(2024/8/25)
試題1
光纖傳輸測(cè)試指標(biāo)中,回波損耗是指( )。查看答案
試題參考答案:A
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試題2
校園網(wǎng)連接運(yùn)營(yíng)商的IP地址為202.117.113.3/30,本地網(wǎng)關(guān)的地址為192.168.1.254/24,如果本地計(jì)算機(jī)采用動(dòng)態(tài)地址分配,在下圖中應(yīng)如何配置?( )。查看答案
試題參考答案:A
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試題3
在Linux系統(tǒng)中,不能為網(wǎng)卡 eth0 添加IP∶192.168.0.2的命令是( )。查看答案
試題參考答案:D
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試題4
設(shè)置計(jì)算機(jī)的無(wú)線網(wǎng)卡,使該計(jì)算機(jī)與實(shí)驗(yàn)室的無(wú)線訪問(wèn)點(diǎn)LabAP之間的通信能夠受密碼保護(hù),指定密鑰為2350AD9FE0,則下圖中應(yīng)設(shè)置 ( ) 。
A、SSID為L(zhǎng)abAP,網(wǎng)絡(luò)驗(yàn)證為開(kāi)放式,數(shù)據(jù)加密為WEP
B、SSID為2350AD9FE0,網(wǎng)絡(luò)驗(yàn)證為開(kāi)放式,數(shù)據(jù)加密為WEP
C、SSID為L(zhǎng)abAP,網(wǎng)絡(luò)驗(yàn)證為WEP,數(shù)據(jù)加密為開(kāi)放式
D、SSID為2350AD9FE0,網(wǎng)絡(luò)驗(yàn)證為WEP,數(shù)據(jù)加密為開(kāi)放式
查看答案
試題參考答案:A
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試題5
()格式的文件用于網(wǎng)頁(yè)動(dòng)畫(huà)展示時(shí),通??梢蕴岣呔W(wǎng)頁(yè)內(nèi)容的載入速度查看答案
試題參考答案:C
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/8/25
試題6
在地面上相隔2000KM的兩地之間通過(guò)衛(wèi)星信道傳送4000比特長(zhǎng)的數(shù)據(jù)包,如果數(shù)據(jù)速率為64Kb/S,則從開(kāi)始發(fā)送到接收完成需要的時(shí)間是 ( ) 。
A、48ms
B、640ms
C、322.5ms
D、332.5ms
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=2024/8/25
試題7
Network Addrees Translation(NAT) is an Internet standard that enables a local-area network to use one set of IP addresses for internet traffic and another set of ( ) IP addresses for external traffic. The main use of NAT is to limit the number of public IP addresses that an organization or company must use, for both economy and ( ) purposes. NAT remaps an IP address space into another by modifying network address information in the ( ) header of packets while they are in transit across a traffic routing device. It has become an essential tool in conserving global address space in the face of ( ) address exhaustion. When a packet traverses outside the local network, NAT converts the private IP address to a public IP address. If NAT runs out of public addresses,the packets will be dropped and ( )"host unreachable"packets will be sent.查看答案
試題參考答案:C、D、B、A、C
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2024/8/25
試題8
某學(xué)校網(wǎng)絡(luò)中的教學(xué)區(qū)域應(yīng)該分配IP地址段為192.168.2.0/24,但管理員發(fā)現(xiàn)部分教室的電腦被分配了192.168.3.0/24的地址。為了預(yù)防未授權(quán)的DHCP服務(wù)器在網(wǎng)絡(luò)中分配錯(cuò)誤的IP地址,管理員應(yīng)采取以下哪種措施?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=2024/8/25
試題9
在下列編碼方式中,()效率最高查看答案
試題參考答案:D
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試題10
“當(dāng)多個(gè)事務(wù)并發(fā)執(zhí)行時(shí),任一事務(wù)的更新操作直到其成功提交的整個(gè)過(guò)程,對(duì)其他事務(wù)都是不可見(jiàn)的",這一特性通常被稱(chēng)之為事務(wù)的( )。查看答案
試題參考答案:C
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