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CCNA培训主要内容包括：1.网络基础：OSI七层参考模型；数据的封装与解封装；以太网；TCP/IP协议，TCP/IP协议的体系结构，IP地址的分类，子网划分，ARP协议，TCP协议，UDP协议。2.路由：路由原理；静态路由，默认路由；RIP协议，OSPF协议，EIGRP协议。访问控制...2017-08-11
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考试价格（1900包含所有费用）现在思科官方ccna的考试费用是295美金，折合人民币是1860，考点收费都是2300+...2015-09-18
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CCNA安全认证为您担任网络安全专家、网络安全管理员和网络安全支持工程师等职位打下坚实的基础。对那些希望获得CCSP认证的人员来说，获得CCNA安全认证是第一步。此外，国家系统安全（INFOSEC）及国家安全系统委员会均认可思科CCNA安全课程符合CNSS4001培训标准...2015-09-18
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CCNA® 路由和交换认证SAN JOSE, Calif., 2013年3月26日–思科始终致力于提供基于实际工作技能的培训，并与时俱进地跟随最新的网络解决方案。思科今天宣布对思科工程师级认证项目进行更新，CCNA®认证将更名为CCNA®路由与交换认证。如今物理世...2015-04-02
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CCNA® 数据中心认证对于那些想要在数据中心的设计、设备的安装和维护上面节约时间和金钱的数据中心网络管理员们来说，思科的CCNA数据中心认证是一项关注工作-角色的培训和认证考试，它可以使你在教育方面的投资得到最大化的收益并且提升数据中心网络的价值...2015-04-02
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(640-864) DESGN考试要点（蓝本2.1更新版）考试说明此考试标志着在设计以SONA（思科服务导向网络架构）为基础的思科融合网络方面具备基本的或者初步的网络设计知识。拥有CCDA认证的专业人士可以为企业和机构设计包含局域网、广域网和宽带接入服务的路由和交换...2015-04-02
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天宏2注册官方入口的有效期为三年。要进行再认证，请在认证过期之前通过下列考试之一：通过任何一门目前提供的除了ICND1考试以外的Associate（工程师）级别认证或通过任何一门642-XXX Professional（资深工程师）或300-XXX Professional（资深工程师）级别考试...2015-04-02
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ccna 1.which of the following types of packets will be allowed entry when a serial interface's inbound access list has been configured to prohibit entry for tcp and udp ports 21, 23 and 25? (select three options.) a. smtpb...2015-03-18
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1: in which of the following modes in cisco's ios can you issue show commands? (choose two.) a. user b. privileged c. line configuration d. global configuration 2: you are the network administrator for a large corpo...2015-03-18
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1: your junior network administrator wants to know what the default subnet mask is for a class c ip address. what do you tell him? a. 255.0.0.0 b. 255.255.0.0 c. 255.245.255.0 d. 255.255.255.0 e. 255.255.255.255&nbs...2015-03-18
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无忧考网为大家收集整理了《天宏2注册官方入口》供大家参考，希望对大家有所帮助！！！（1）TCP/IP Addressing and Protocol1: Your junior network administrator wants to know what the default subnet mask is for a Class C IP address. What do you tell...2013-11-26
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无忧考网为大家收集整理了《天宏2娱乐平台》供大家参考，希望对大家有所帮助！！！25) Which statement is true of WinSock (下面对Wi n S o c k的哪一句陈述是正确的)？ A. It is a MAC application B. It represents a graphical user interface C. It...2013-11-26
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无忧考网为大家收集整理了《天宏2注册官方入口》供大家参考，希望对大家有所帮助！！！1) Match the following application layer services to their corresponding transport layer protocol port. (匹配下列的应用层服务和它们对应的传输层协议端口)： A. S...2013-11-26
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无忧考网为大家收集整理了《天宏2注册彩票》供大家参考，希望对大家有所帮助！！！1: In which of the following modes in Cisco's IOS can you issue show commands? (Choose two.)A. UserB. PrivilegedC. Line ConfigurationD. Global Con...2013-11-25
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无忧考网为大家收集整理了《天宏2注册彩票》供大家参考，希望对大家有所帮助！！！1: Your junior network administrator wants to know what the default subnet mask is for a Class C IP address. What do you tell him? A. 255.0....2013-11-25
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无忧考网为大家收集整理了《天宏2娱乐平台注册网站》供大家参考，希望对大家有所帮助！！！问题： Which layer of the 7 layer model provides services to the application layer over the Session layer connection? A.Network B.Transport C.Sessi...2013-11-25
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无忧考网为大家收集整理了《天宏2注册》供大家参考，希望对大家有所帮助！！！1: your junior network administrator wants to know what the default subnet mask is for a class c ip address. what do you tell him?a. 255.0.0.0]6lb. 2...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台》供大家参考，希望对大家有所帮助！！！ 6: you are designing an ip address scheme for your brand new remote office. the vice president of it calls to tell you that you will be in charge of...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台注册开户》供大家参考，希望对大家有所帮助！！！ 11: which of the following protocols is connection-orienteda. tcpb. ipc. ipxd. frame relay12: you are using an application on your windows 2000 clie...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台注册开户》供大家参考，希望对大家有所帮助！！！17: a new network is being designed for your company, acme, inc. if you use a class c ip network, which subnet mask will provide one usable subnet pe...2013-11-22
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无忧考网为大家收集整理了《天宏2注册彩票》供大家参考，希望对大家有所帮助！！！21: your organization is using the 192.168.1.0/24 address space. you need 28 subnets. what subnet mask would you use to create these subnets? a. 255....2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台》供大家参考，希望对大家有所帮助！！！26: you are given an ip network of 192.168.5.0 and told that you need to separate this network into subnetworks that can support a maximum of 16 host...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台最新网址》供大家参考，希望对大家有所帮助！！！31: you are troubleshooting your router's interfaces. for some reason, the ethernet interface will not accept the ip address of 192.168.5.95/27 that ...2013-11-22
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无忧考网为大家收集整理了《天宏2注册》供大家参考，希望对大家有所帮助！！！36: one of your co-workers at acme, inc., needs to convert the binary number 11010110 into a decimal. what is the decimal equivalent?a. 198b. 214c. 2...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台app下载中心》供大家参考，希望对大家有所帮助！！！41: you are a network technician at acme, inc. you have subnetted the 192.168.72.0 network with a /30 mask for connections between your routers. your...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台最新网址》供大家参考，希望对大家有所帮助！！！46: your boss wants to know what tcp stands for. what do you tell him?a. transmission check protocolb. transport check protocolc. transmission contr...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台最新网址》供大家参考，希望对大家有所帮助！！！1: Your junior network administrator wants to know what the default subnet mask is for a Class C IP address. What do you tell him? A. 255.0.0.0 B. ...2013-11-22
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无忧考网为大家收集整理了《天宏2注册体育真人》供大家参考，希望对大家有所帮助！！！1: In which of the following modes in Cisco's IOS can you issue show commands? (Choose two.) A. User B. Privileged C. Line Configuration D. Global Configu...2013-11-22
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无忧考网为大家收集整理了《天宏2娱乐平台》供大家参考，希望对大家有所帮助！！！71. Which layer is responsible for providing mechanisms for multiplexing upper-layer application, session establishment, and tear-down of virtual...2013-11-22
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无忧考网为大家收集整理了《天宏2注册体育真人》供大家参考，希望对大家有所帮助！！！61. Which of the following about ARP is true? Choose 2A. It is in the application layerB. It is in the network layerC. It maps mac addresses to i...2013-11-22