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網(wǎng)絡工程師每日一練試題(2026/5/18)

網(wǎng)絡工程師當天每日一練試題地址:www.xarthg.com/exam/ExamDay.aspx?t1=8

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網(wǎng)絡工程師每日一練試題內(nèi)容(2026/5/18)

  • 試題1

    The Border Gateway Protocol(BGP) is an interautonomous system?? (1)???protocol. The primary function of a BGP speaking system is to exchange network?? (2)???information with other BGP system. This network reachability information includes information on the list of Autonomous System(ASs) that reachability information traverses. BGP-4 provides a new set of mechanisms for supporting?? (3)???interdomain routing. These mechanisms include support for advertising an IP?? (4)???and eliminate the concept of network class within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including?? (5)???of AS paths. These changes provide support for the proposed supernetting scheme.
    A.connecting
    B.resolving
    C.routing 
    D.supernetting
    A.secubility
    B.reachability
    C.capability
    D.reliability
    A.a(chǎn)nswerless 
    B.connectionless
    C.confirmless
    D.classless
    A.prefix
    B.suffix 
    C.infix 
    D.reflex
    A.reservation
    B.relation
    C.a(chǎn)ggregation
    D.connection

    查看答案

    試題參考答案:C、B、D、A、C

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題2

    在Linux操作系統(tǒng)中,主機名到IP地址的映射包含在( )配置文件中。
    A./etc/networks
    B./etc/hostname
    C./ete/hosts
    D./etc/resolv.conf

    查看答案

    試題參考答案:C

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題3

    以下關于黑盒測試的描述,正確的是( )。
    A. 黑盒測試主要關注程序并發(fā)處理能力,通過模擬多線程環(huán)境來檢測
    B. 黑盒測試重點在于檢測程序代碼安全性,查看是否存在漏洞
    C. 黑盒測試是依據(jù)軟件需求規(guī)格說明書,檢查功能是否符合需求
    D. 黑盒測試用于評估代碼復用率,分析代碼中重復代碼的占比

    查看答案

    試題參考答案:C

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題4

    下列關于RSTP的說法中正確的是( )。
    A.交換機端口處于discarding狀態(tài)即可進行流量轉(zhuǎn)發(fā)
    B.依靠計時器超時機制確定根端口和指定端口
    C.采用P/A機制實現(xiàn)快速收斂
    D.優(yōu)先級數(shù)值大的交換機會被選為根橋

    查看答案

    試題參考答案:C

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題5

    在HDLC協(xié)議中,哪個字段用于區(qū)分不同類型的幀,如信息幀、監(jiān)控幀和無編號幀?
    A.標志
    B.地址
    C.控制
    D.數(shù)據(jù)

    查看答案

    試題參考答案:C

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題6

    在( )校驗方法中,采用模2運算來構(gòu)造校驗位。
    A、水平奇偶
    B、垂直奇偶
    C、海明碼
    D、循環(huán)冗余

    查看答案

    試題參考答案:D

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題7

    下列IP地址( )不屬于子網(wǎng)172.16.24.0/21
    A.172.16.30.4
    B.172.16.32.56
    C.172.16.28.12
    D.172.16.26.251

    查看答案

    試題參考答案:B

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題8

    以下關于第二代移動通信系統(tǒng)的說法,正確的是( )。
    A. GSM采用碼分多址技術,工作在900 - 1800MHz頻段
    B. CDMA系統(tǒng)工作在800MHz頻段,頻率利用率低
    C. 2.5G系統(tǒng)中的GPRS基于分組交換技術,按連接時間計費
    D. GSM系統(tǒng)中每一個信道采用TDMA方式可支持8個用戶會話

    查看答案

    試題參考答案:D

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題9

    下列Linux命令中,適合查看較大文件的是(  )。
    A.tail
    B.cat
    C.head
    D.less

    查看答案

    試題參考答案:D

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 試題10

    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.
    (1) A. local
    B. private
    C. public
    D. dynamic
    (2) A. political
    B. fairness
    C. efficiency
    D. security
    (3) A.MAC
    B. IP
    C.TCP
    D. UDP
    (4) A. IPv4
    B. IPv6
    C. MAC
    D. logical
    (5) A. BGP
    B. IGMP
    C. ICMP
    D. SNMP

    查看答案

    試題參考答案:C、D、B、A、C

    試題解析與討論:www.xarthg.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

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