亚洲日在线,精品国产一区二区三区四区阿崩

當前位置：信管網 >> 網絡工程師 >> 每日一練 >> 文章內容

網絡工程師每日一練試題（2022/11/23）

來源：信管網 2022年11月24日【所有評論】

網絡工程師當天每日一練試題地址：www.ichunya.com/exam/ExamDay.aspx?t1=8

往期網絡工程師每日一練試題匯總：www.ichunya.com/class/27/e8_1.html

網絡工程師每日一練試題（2022/11/23）在線測試：www.ichunya.com/exam/ExamDay.aspx?t1=8&day=2022/11/23

點擊查看：更多網絡工程師習題與指導

網絡工程師每日一練試題內容（2022/11/23）

試題1
使用traceroute命令測試網絡時可以（）。
A.檢驗鏈路協(xié)議是否運行正常
B.檢驗目標網絡是否在路由表中
C.查看域名解析服務
D.顯示分組到達目標路徑上經過的各個路由器
查看答案
試題參考答案：D
試題解析與討論：www.ichunya.com/st/4188529942.html
試題2
使用白盒測試時，確定測試數(shù)據(jù)應根據(jù)（）指定覆蓋準則。
A.程序的內部邏輯
B.程序的復雜程度
C.使用說明書
D.程序的功能
查看答案
試題參考答案：A
試題解析與討論：www.ichunya.com/st/4495824626.html
試題3

ADSL 采用多路復用技術是（1），最大傳輸距離可達（2）米。
（1）A、TDM
B、FDM
C、WDM
D、CDMA
（2）A、500
B、1000
C、5000
D、10000
查看答案
試題參考答案：B、C
試題解析與討論：www.ichunya.com/st/84912924.html
試題4
傳輸層的主要任務是完成（?。?br />
A.進程通信服務
B.網絡連接服務
C.路徑選擇服務
D.子網一子網連接服務
查看答案
試題參考答案：A
試題解析與討論：www.ichunya.com/st/317135999.html
試題5
宏病毒可以感染后綴為（）的文件。
A．exe
B．txt
C．pdf
D．Xls
查看答案
試題參考答案：D
試題解析與討論：www.ichunya.com/st/23943630.html
試題6
Let us now see how randomization is done when a collision occurs . After a (1), time is divided into discrete slots whose length is equal to the worst-case round-trip propagation time on ether. To accommodate the longest path allowed by Ethernet, the slot time has been set to 512 bit times, or 51.2us.
After the first collision, each station waits either 0 or 1 (2) times before trying again. If two stations collide and each one picks the same random number, they will collide again. After the second collision, each one picks either 0,1,2 or 3 at random and waits that number of slot times. If a third collision occurs (the probability of this happening is 0.25), then the next time the number of slots to wait is chosen at (3) from the interval 0 to 23-1.
In general, after I collisions, a random number between 0 and 2i -1 is chosen, and that number of slots is skipped. However, after ten collisions have been reached, the randomization (4) is frozen at a maximum of 1023 slots. After 16 collisions, the controller throws in the towel and reports failure back to the computer. Further recoveries up to (5) layers.
（1）A.datagram
B.collision
C.connection
D.service
（2）A.slot
B.switch
C.process
D.fire
（3）A.rest
B.random
C.once
D.odds
（4）A.unicast
B.multicast
C.broadcast
D.interval
（5）A.local
B.next
C.higher
D.lower
查看答案
試題參考答案：B、A、B、D、C
試題解析與討論：www.ichunya.com/st/2344912465.html
試題7
關于網絡安全管理的描述中，正確的是（　?。?。
A.能夠恢復全部被破壞的數(shù)據(jù)
B. 快速反擊入侵者
C. 提供單層防衛(wèi)手段
D. 維護安全日志
查看答案
試題參考答案：D
試題解析與討論：www.ichunya.com/st/314457054.html
試題8
A virtual ( ) network, or VPN, is an encrypted connection over the Internet from a device to a network. The encrypted connection helps ensure that sensitive data is safely ( ). It prevents ( ) people from eavesdropping on the traffic and allows the user to conduct work remotely. Traffic on the virtual network is sent securely by establishing an encrypted connection across the Internet known as a ( ).A remote access VPN securely connects a device outside the corporate office. A site-to-site VPN connects the corporate office to branch offices over the Internet. Site-to-site VPNs are used when distance makes it impractical to have direct network connections between these offices. Think of site-to-site access as ( ) to network.
（1）A. public
B. private
C. personal
D. proper
（2）A. encoded
B. encrypted
C. stored
D. transmitted
（3）A. employed
B. authorized
C. unauthorized
D. criminal
（4）A. channel
B. path
C. tunnel
D. route
（5）A. network
B. device
C. computer
D. endpoin
查看答案
試題參考答案：B、D、C、C、A
試題解析與討論：www.ichunya.com/st/4189813956.html
試題9
網絡系統(tǒng)設計過程中，物理網絡設計階段的任務是（）。
A.依據(jù)邏輯網絡設計的要求，確定設備的具體物理分布和運行環(huán)境
B.分析現(xiàn)有網絡和新網絡的各類資源分布，掌握網絡所處的狀態(tài)
C.根據(jù)需求規(guī)范和通信規(guī)范，實施資源分配和安全規(guī)劃
D.理解網絡應該具有的功能和性能，最終設計出符合用戶需求的網絡
查看答案
試題參考答案：A
試題解析與討論：www.ichunya.com/st/1308323231.html
試題10

下列（）命令可以更改一個文件的權限設置。
A、attrib
B、file
C、chmod
D、change
查看答案
試題參考答案：C
試題解析與討論：www.ichunya.com/st/85622948.html