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網(wǎng)絡(luò)工程師每日一練試題內(nèi)容(2025/5/23)
試題1
使用CIDR技術(shù)把4個C類網(wǎng)絡(luò)220.117.12.0/24、220.117.13.0/24、220.117.14.0/24和220.117.15.0/24匯聚成一個超網(wǎng),得到的地址是 ( ) 。
A、220.117.8.0/22
B、220.117.12.0/22
C、220.117.8.0/21
D、220.117.12.0/21
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=2025/5/23
試題2
早期計算機通信網(wǎng)絡(luò)采用多種技術(shù)提高通信線路使用率,減少主機負(fù)荷,其中不包括()?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=2025/5/23
試題3
網(wǎng)絡(luò)系統(tǒng)設(shè)計過程中,物理網(wǎng)絡(luò)設(shè)計階段的仟務(wù)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=2025/5/23
試題4
假設(shè)一個IP數(shù)據(jù)報總長度為3000B,要經(jīng)過一段MTU為1500B的鏈路,該IP報文必須經(jīng)過分片才能通過該鏈路。該原始IP報文須被分成( )個片,若IP首部沒有可選字段,則最后一個片首部中Offset字段為( )。查看答案
試題參考答案:B、A
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2025/5/23
試題5
在Windows命令行窗口中鍵入tracert命令,得到下圖所示窗口,則該PC的IP地址可能為( )。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=2025/5/23
試題6
在網(wǎng)絡(luò)規(guī)劃和設(shè)計過程中,選擇網(wǎng)絡(luò)技術(shù)時要考慮多種因素。下面的各種考慮中不正確的是(70) 。
A.網(wǎng)絡(luò)帶寬要保證用戶能夠快速訪問網(wǎng)絡(luò)資源
B.要選擇具有前瞻性的網(wǎng)絡(luò)新技術(shù)
C.選擇網(wǎng)絡(luò)技術(shù)時要考慮未來網(wǎng)絡(luò)擴充的需要
D.通過投入產(chǎn)出分析確定使用何種技術(shù)
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=2025/5/23
試題7
DES加密算法對輸入的明文首先進行().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=2025/5/23
試題8
VxLAN與QinQ相比,說法錯誤的是().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=2025/5/23
試題9
Network firewalls are security devices used to stop or mitigate() access to private networks connected to the lnternet, especially intranets. The only traffic allowed on the network is defined via firewall ()-any other traffic attempting to access the network is blocked. Network firewalls sit at the () line of a network, acting as a communications liaison between internal and external devices, When properly configured, a firewall allows users to access any of the resources they need while simultaneously keeping out unwanted accesses. In addition to limiting access to a protected computer and network, a firewall can () all traffic coming into or leaving a network, and manage remote access to a private network through secure authentication certificates and logins. () firewalls examine every packet that passes through the network and then accept or deny it as defined by rules set by the user.
A.Ports
A.Front
A.Reply
A.Application-layer
查看答案
試題參考答案:A、B、A、A、B
試題解析與討論:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=8&day=2025/5/23
試題10
在Linux中,(41) 命令可將文件以修改時間順序顯示。
A.Is -a
B. Is -b
C. Is -c
D. Is -d
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=2025/5/23
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