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单选题 MAC地址有多少位?
A. 16位
B. 32位
C. 48位
学科：默认课程
时间：2025-06-15 07:34:32
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题目1单选题
物理层的主要功能是:<img src="https://tihai-oss-cloud.itihey.com/img/67bdcc401253e6a4fb36cc4610386c6c.png">A. 数据格式转换<img src="https://tihai-oss-cloud.itihey.com/img/adb32f902b89078dd2a38c75990d5a19.png">B. 在通信信道上传输原始比特流<img src="https://tihai-oss-cloud.itihey.com/img/d040d5464dd01a7fe645978d8f4e4ec8.png">C. 路由选择<img src="https://tihai-oss-cloud.itihey.com/img/fee8c0992f2802373a1f803a353a3cd1.png">D. 差错控制
题目2单选题
下列哪种设备工作在数据链路层?<img src="https://tihai-oss-cloud.itihey.com/img/f24af474ede064cb07065610de13f286.png">A. 路由器<img src="https://tihai-oss-cloud.itihey.com/img/88d4f0a6bbe7fab0489667533dba8373.png">B. 交换机<img src="https://tihai-oss-cloud.itihey.com/img/9ba8b5801096623b441525f6d6743bf1.png">C. 中继器<img src="https://tihai-oss-cloud.itihey.com/img/2dee3f2da3b391ed5e198a39da7d01f9.png">D. 网关
题目3单选题
IP地址192.168.1.1属于哪类地址?<img src="https://tihai-oss-cloud.itihey.com/img/013e340b273b0d4cce8c2bc4bdebbae2.png">A. A类<img src="https://tihai-oss-cloud.itihey.com/img/fdeb1c212607267096f540ce6ca85040.png">B. B类<img src="https://tihai-oss-cloud.itihey.com/img/0755b8d86d855cc63a79d407c9a317c6.png">C. C类<img src="https://tihai-oss-cloud.itihey.com/img/fe7a760548e903c3d1e38e7669ce0d92.png">D. D类
题目4单选题
CSMA/CD协议主要用于:<img src="https://tihai-oss-cloud.itihey.com/img/831d48eb70a76bef9a486c2785e3cafd.png">A. 广域网<img src="https://tihai-oss-cloud.itihey.com/img/7b67903871648aab4e4d1c84beeac9d2.png">B. 令牌环网<img src="https://tihai-oss-cloud.itihey.com/img/b66fed59b82a9e771a9fde2473af9349.png">C. 以太网<img src="https://tihai-oss-cloud.itihey.com/img/b191a98465e74f25cb6a5c4a86e46dda.png">D. ATM网络
题目5单选题
下列哪个协议属于网络层协议?<img src="https://tihai-oss-cloud.itihey.com/img/1164596052fda528dc1e9c83b6fd8e01.png">A. TCP<img src="https://tihai-oss-cloud.itihey.com/img/12f54f3e4f633e98f5f2f8f221b8701f.png">B. UDP<img src="https://tihai-oss-cloud.itihey.com/img/c1798225e4a283d789974e710d1acfd4.png">C. IP<img src="https://tihai-oss-cloud.itihey.com/img/10dd77f6550401d7445ab51eb3a491f6.png">D. HTTP
题目6单选题
MAC地址有多少位?<img src="https://tihai-oss-cloud.itihey.com/img/4b305cfa54aece736b8bfdd85f5eab9b.png">A. 16位<img src="https://tihai-oss-cloud.itihey.com/img/7680050b6a116afca3c80e4a81850ecb.png">B. 32位<img src="https://tihai-oss-cloud.itihey.com/img/18e715b7283e959e46cf7b9d02b6d2c3.png">C. 48位<img src="https://tihai-oss-cloud.itihey.com/img/549232e6403322eb5e0268c8cccba875.png">D. 64位
题目7单选题
子网掩码255.255.255.0对应的CIDR表示法是A. /16<img src="https://tihai-oss-cloud.itihey.com/img/b164c08590e58ee9ddd2d233f51381b2.png">B. /24<img src="https://tihai-oss-cloud.itihey.com/img/d7debc39db0b09766c0e132445e8a77a.png">C. /32<img src="https://tihai-oss-cloud.itihey.com/img/eab6f34793d624214cd2ae40e914ac77.png">D. /8
题目8单选题
下列哪种传输介质抗电磁干扰能力最强?<img src="https://tihai-oss-cloud.itihey.com/img/20be01e24342dc292f98faaa91d57d80.png">A. 双绞线<img src="https://tihai-oss-cloud.itihey.com/img/9cd634febad26c11bb998d4012c5b6f8.png">B. 同轴电缆<img src="https://tihai-oss-cloud.itihey.com/img/d880a16dd18d6823e1620c9ba7982fc3.png">C. 光纤<img src="https://tihai-oss-cloud.itihey.com/img/42d0c535b2d527bbecc635f2701e380b.png">D. 无线电波
题目9单选题
ARP协议的主要功能是:<img src="https://tihai-oss-cloud.itihey.com/img/0779c9033fcdf1f5526145c0981e477e.png">A. 将域名转换为IP地址<img src="https://tihai-oss-cloud.itihey.com/img/43ff535347734b31abe34c22bbb0f802.png">B. 将IP地址转换为MAC地址<img src="https://tihai-oss-cloud.itihey.com/img/9cd63f68d355a1c362799e2a0bcca3cd.png">C. 将MAC地址转换为IP地址<img src="https://tihai-oss-cloud.itihey.com/img/da538ea32be9d18fc2d049a1acc18ac8.png">D. 将IP地址转换为域名
题目10单选题
下列哪种网络设备可以分割冲突域?<img src="https://tihai-oss-cloud.itihey.com/img/100a250a84ce73f60e1219a7a8187291.png">A. 集线器<img src="https://tihai-oss-cloud.itihey.com/img/c8a4d6a30266ca75b272595054decab6.png">B. 交换机<img src="https://tihai-oss-cloud.itihey.com/img/b37aa960804155801e9483ad67f8ab9f.png">C. 中继器<img src="https://tihai-oss-cloud.itihey.com/img/41fbdcd2e6ccc229c5092832e678f94f.png">D. 以上都可以
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