ccna考什么（ccna每年考试时间）

有些朋友问网络工程师成长日记小编问到CCNA一般要学习多长时间呢，学习的难度怎么样

一 思科认证CCNA考试费是多少

思科的CCNA考试现在的编号是200-301，考试费用是195美元，

考试的大纲大概是这样的：

Identify the components of a computer network and describe their basic characteristics

Understand the model of host-to-host communication

Describe the features and functions of the Cisco Internetwork Operating System (IOS®) software

Describe LANs and the role of switches within LANs

Describe Ethernet as the network access layer of TCP/IP and describe the operation of switches

Install a switch and perform the initial configuration

Describe the TCP/IP Internet layer, IPv4, its addressing scheme, and subnetting

Describe the TCP/IP Transport layer and Application layer

Explore functions of routing

Implement basic configuration on a Cisco router

Explain host-to-host communications across switches and routers

Identify and resolve common switched network issues and common problems associated with IPv4 addressing

Describe IPv6 main features and addresses, and configure and verify basic IPv6 connectivity

Describe the operation, benefits, and limitations of static routing

Describe, implement, and verify Virtual Local Area Networks (VLANs) and trunks

Describe the application and configuration of inter-VLAN routing

Explain the basics of dynamic routing protocols and describe components and terms of Open Shortest Path First (OSPF)

Explain how Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP) work

Configure link aggregation using EtherChannel

Describe the purpose of Layer 3 redundancy protocols

Describe basic WAN and VPN concepts

Describe the operation of Access Control Lists (ACLs) and their applications in the network

Configure Internet access using Dynamic Host Configuration Protocol (DHCP) clients and explain and configure Network Address Translation (NAT) on Cisco routers

Describe basic Quality of Service (QoS) concepts

Describe the concepts of wireless networks, which types of wireless networks can be built, and how to use Wireless LAN Controllers (WLCs)

Describe network and device architectures and introduce virtualization

Introduce the concept of network programmability and Software-Defined Networking (SDN) and describe smart network management solutions such as Cisco DNA Center™, Software-Defined Access (SD-Access), and Software-Defined Wide Area Network (SD-WAN)

Configure basic IOS system monitoring tools

Describe the management of Cisco devices

Describe the current security threat landscape

Describe threat defense technologies

Implement a basic security configuration of the device management plane

Implement basic steps to harden network devices

二 思科认证CCNA一般学习多长时间

CCNA一般是学习时间差不多2-4周的时候就可以了，但是因为每个人做实验掌握技术的快慢不一样，这样导致的是CCNA在实际学习的时候每个人的时间是不一样的，通常就是2-4周的时间基本上就够了，如果特别慢的话，一般就是1-2个月就能学习会的额

三 思科认证CCNA考证书容易吗，能找到工作吗

CCNA的考试一般都是要看题库的，所谓的题库就是真是的考试题的模拟题库了，考试的时候只要你把这个模拟题库看的非常熟练，考试自然也就可以通过了