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网络工程师每日一练试题内容(2026/6/17)
试题1
The Address Resolution Protocol(ARP)was developed to enable communication on an internetwork and perform a required function in IP routing.ARP lies between layers( )of the OSI model,and allows computers to introduce each other across a network prior to communication.APR finds the( )address of a host from its known( )address.Before a device sends a datagram to another device,it looks in its ARP cache to see if there is a MAC address and corresponding IP address for the destination device.If there is no entry,the source device sends a( )message to every device on the network.Each device compares the IP address to its own.Only the device with the matching IP address replies with a packet containing the MAC address for the device(except in the case of “proxy ARP”).The source device adds the( )device MAC address to its ARP table for future reference.查看答案
试题参考答案:B 、C 、A 、C 、B
试题2
( )不属于数据链路层的功能。查看答案
试题参考答案:A
试题3
在Linux主机上配置防火墙策略,实现以下目标查看答案
试题参考答案:C
试题4
某企业网络拓扑如图所示,骨干区域的3台路由器运行0SPF路由协议,在排除网络故障时,发现RA收到RB发送的Hello报文,但是没有收到RC发送的Hello报文,可能原因是( )。
查看答案
试题参考答案:C
试题5
软件测试时,白盒测试不能发现( )查看答案
试题参考答案:D
试题6
IEEE802.1Q规定VLAN的Tag字段中,用来定义帧的优先级的是( )。查看答案
试题参考答案:A
试题7
虚拟内存的主要作用是( )。查看答案
试题参考答案:C
试题8
下列无线网络技术中,覆盖范围最小的是( )。查看答案
试题参考答案:A
试题9
The Dynamic Host Configuration Protocol provides configuration parameters to Internet(1). DHCP consists of two components: a(2) for delivering host-specific configuration parameters from a DHCP server to a host and a mechanism for allocation of network addresses to hosts. DHCP is built on a client-server model, where designated DHCP server hosts allocate network addresses and deliver (3) parameters to dynamically configured hosts. DHCP supports three mechanisms for IP address allocation. In"automatic allocation",DHCP assigns a(4) IP address to a client. In"dynamic allocation",DHCP assigns an IP address to a client for a limited period of time. In"manual allocation", a client's IP address is assigned by the network (5), and DHCP is used simply to convey the assigned address to the client
(1)A. switch
B. terminal
C. hosts
D. users
(2)A. router
B. protocol
C. host
D. mechanism
(3)A. control
B. broadcast
C. configuration
D. transmission
(4)A. permanent
B. dynamic
C. connection
D.session
(5)A.controller
B.user
C. host
D. administrator
查看答案
试题参考答案:C、B、C、A、D
试题10
VxLAN与QinQ相比,说法错误的是( ).查看答案
试题参考答案:B
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