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網絡工程師每日一練試題(2022/6/17)在線測試:www.shc2b.com/exam/ExamDay.aspx?t1=8&day=2022/6/17
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網絡工程師每日一練試題內容(2022/6/17)
試題1
能夠容納 200 臺客戶機的 IP 地址段,其網絡位最長是()位。查看答案
試題參考答案:D
試題解析與討論:www.shc2b.com/st/520747875.html
試題2
The TCP protocolis a (1) layer protocol. Each connection connects two TCPs that may be just one physical network apart or located on opposite sides ofthe globe. In other words, each connection creates a (2) witha length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections. Selecting afixed retransnussion time for all connections can result in serious consequences. Ifthe retransmission time does not allow enough time for a (3) to reach the destination and an acknowledgment to reach the source, it can result in retransmission of segments that are still on the way. Conversely, if the retransnussion time is longer than necessary for a short path, it may result in delay for the application programs.Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive (4)faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection. Retransmission time can be made(5) by basing it on the round-trip time (RTT). Several formulas are used for this purpose.
(1)A、physical
B、network
C、transport
D、application
(2)A、path
B、window
C、response
D、process
(3)A、process
B、segment
C、program
D、user
(4)A、connections
B、requests
C、acknowledgments
D、datagrams
(5)A、long
B、short
C、fixed
D、dynamic
查看答案
試題參考答案:C、A、B、C、D
試題解析與討論:www.shc2b.com/st/92823196.html
試題3
浮點數的表示分為階和尾數兩部分。兩個浮點數相加時,需要先對階,即()(n為階差的絕對值)。查看答案
試題參考答案:D
試題解析與討論:www.shc2b.com/st/402859663.html
試題4
關于RSA 的描述中,錯誤的是( ?。?br />A.是一種分組密碼算法查看答案
試題參考答案:D
試題解析與討論:www.shc2b.com/st/314516941.html
試題5
NAT技術解決了IPv4地址短缺的問題,假設內網的地址數是m,而外網地址數n,若m>n,則這種技術叫做(1),若m>n,且n=1,則這種技術這叫做(2)。查看答案
試題參考答案:A、C
試題解析與討論:www.shc2b.com/st/238318386.html
試題6
HDLC協議中,若監(jiān)控幀采用SREJ進行應答,表明采用的差錯控制機制為()。查看答案
試題參考答案:B
試題解析與討論:www.shc2b.com/st/4032726030.html
試題7
Windows系統下,通過運行 ( ) 命令可以打開Windows管理控制臺。
A、regedit
B、cmd
C、mmc
D、mfc
查看答案
試題參考答案:C
試題解析與討論:www.shc2b.com/st/88963063.html
試題8
在網絡系統設計時,不可能使所有設計目標都能達到最優(yōu),下列措施中較為合理的是( )。查看答案
試題參考答案:D
試題解析與討論:www.shc2b.com/st/45433761.html
試題9
關于Windows Server 2008 操作系統的描述中,錯誤的是( ?。?br />A.系統體現了動態(tài)IT 系統的趨勢查看答案
試題參考答案:B
試題解析與討論:www.shc2b.com/st/3142613991.html
試題10
SNMP是一種異步請求/響應協議,采用()協議進行封裝。查看答案
試題參考答案:D
試題解析與討論:www.shc2b.com/st/3967524151.html
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