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网络工程师每日一练试题(2026/5/18)

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网络工程师每日一练试题内容(2026/5/18)

  • 试题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.answerless 
    B.connectionless
    C.confirmless
    D.classless
    A.prefix
    B.suffix 
    C.infix 
    D.reflex
    A.reservation
    B.relation
    C.aggregation
    D.connection

    查看答案

    试题参考答案:C、B、D、A、C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题2

    在Linux操作系统中,主机名到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

    试题参考答案:C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题3

    以下关于黑盒测试的描述,正确的是( )。
    A. 黑盒测试主要关注程序并发处理能力,通过模拟多线程环境来检测
    B. 黑盒测试重点在于检测程序代码安全性,查看是否存在漏洞
    C. 黑盒测试是依据软件需求规格说明书,检查功能是否符合需求
    D. 黑盒测试用于评估代码复用率,分析代码中重复代码的占比

    查看答案

    试题参考答案:C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题4

    下列关于RSTP的说法中正确的是( )。
    A.交换机端口处于discarding状态即可进行流量转发
    B.依靠计时器超时机制确定根端口和指定端口
    C.采用P/A机制实现快速收敛
    D.优先级数值大的交换机会被选为根桥

    查看答案

    试题参考答案:C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题5

    在HDLC协议中,哪个字段用于区分不同类型的帧,如信息帧、监控帧和无编号帧?
    A.标志
    B.地址
    C.控制
    D.数据

    查看答案

    试题参考答案:C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题6

    在( )校验方法中,采用模2运算来构造校验位。
    A、水平奇偶
    B、垂直奇偶
    C、海明码
    D、循环冗余

    查看答案

    试题参考答案:D

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题7

    下列IP地址( )不属于子网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

    试题参考答案:B

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题8

    以下关于第二代移动通信系统的说法,正确的是( )。
    A. GSM采用码分多址技术,工作在900 - 1800MHz频段
    B. CDMA系统工作在800MHz频段,频率利用率低
    C. 2.5G系统中的GPRS基于分组交换技术,按连接时间计费
    D. GSM系统中每一个信道采用TDMA方式可支持8个用户会话

    查看答案

    试题参考答案:D

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题9

    下列Linux命令中,适合查看较大文件的是(  )。
    A.tail
    B.cat
    C.head
    D.less

    查看答案

    试题参考答案:D

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

  • 试题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

    试题参考答案:C、D、B、A、C

    试题解析与讨论:www.cnitpm.com/exam/ExamDay.aspx?t1=8&day=2026/5/18

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