2026年10月08日来源:信管网 作者:cnitpm
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网络工程师每日一练试题内容(2026/10/7)
试题1
某网络拓扑如下图所示,边界防火墙的管理地址为 10.0.122.1,财务服务器地址为10.0.123.2,为禁止外部用户对财务服务器的访问,管理员应在边界防火墙上配置( )策略,该条策略配置的源地址应为 ( )
查看答案
试题参考答案:B、A
试题2
管理员要测试目标192.168.99.221在长时间内的数据的连通性情况,则在CMD窗口中键入命令( )。查看答案
试题参考答案:A
试题3
在CSMA/CD协议中,二进制指数后退算法的作用是( )?查看答案
试题参考答案:B
试题4
Asoftware-definedwideareanetwork(SD-WAN)isawideareanetworkthatusessoftware-definednetworktechnology,suchascommunicatingoverthelnternetusingoverlay(19)whichareencryptedwhendestinedforinternalorganizationlocations.sD-WANsimplifiesthemanagementandoperationofaVANbydecouplingthenetworkinghardwarefromits(20)mechanism.Thisconceptissimilartohowsoftware-definednetworkingimplements(21)technologytoimprovedatacentermanagementandoperation.AkeyapplicationofsD-WANistoallowcompaniestobuildhigher-performanceWANsusinglower-costandcommerciallyavailable(22)access,enablingbusinessestopartiallyorwhollyreplacemoreexpensiveprivateWANconnectiontechnologies.sD-WANtechnologysupports(23)ofService(QoE)byhavingapplication-levelawareness,givingbandwidthprioritytothemostcriticalapplications.查看答案
试题参考答案:C、D、D、B、B
试题5
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.查看答案
试题参考答案:C、D、B、A、C
试题6
在BGP路由协议中,路由器何时会发送UPDATE消息?查看答案
试题参考答案:B
试题7
假设某公司X1有8000台主机,采用CIDR方法进行划分,则至少给它分配(1)个C类网络。如果192.168.210.181是其中一台主机地址,则指定给X1的网络地址为(2)。查看答案
试题参考答案:D、A
试题8
下列( )为WLAN用户提供Web身份认证。查看答案
试题参考答案:D
试题9
以下关于国产操作系统的描述中,错误的是( )?查看答案
试题参考答案:D
试题10
在Windows中,可以使用( 1 )命令测试DNS正向解析功能,要查看域名www.aaa.com所对应的主机IP地址,须将type值设置为( 2 )。查看答案
试题参考答案:B、A
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