CCNA 642-821 BCRAN

　　考试时间:105分钟

　　考题数目:55-65题

　　及格分数:699分

　　考试内容:

　　General Knowledge

　　Describe how different WAN technologies can be used to provide remote access to a network, including asynchronous dial-in, Frame Relay, ISDN, cable modem, and DSL

　　Describe traffic control methods used to manage traffic flow on WAN links

　　Explain the operation of remote network access control methods

　　Identify PPP components, and explain the use of PPP as an access and encapsulation method

　　Describe the structure and operation of virtual private network technologies

　　Describe the process of Network Address Translation (NAT)

　　Implementation and Operation

　　Configure asynchronous modems and router interfaces to provide network access

　　Configure an ISDN solution for remote access

　　Configure frame relay operation and traffic control on WAN links

　　Configure access control to manage and limit remote access

　　Configure DSL operation using Cisco IOS

　　Configure VPN operation using Cisco IOS

　　Configure Network Address Translation (NAT)

　　Planning and Design

　　Design a Cisco remote access solution using asynchronous dial-up technology

　　Plan a Cisco ISDN solution for remote access or primary link back-up

　　Design a Cisco frame relay infrastructure to provide access between remote network components

　　Design a solution of access control to meet required specifications

　　Plan traffic shaping to meet required quality of service on access links

　　Troubleshooting

　　Troubleshoot non-functional remote access systems

　　Troubleshoot a VPN system

　　Troubleshoot traffic control problems on a WAN link

　　附录:

　　新版本的642-821删掉WIN 95/NT拨号配置，增加了DSL技术包括:ADSL，VDSL,SDSL，S.SHDSL，IDSL等DSL技术，PPPoE， PPPoA协议， Cable技术，此外增加了VPN包括IPSec和加密技术。该书的QoS和BCMSN课程相似，与以前相比变化很多。

下一篇：CCNA 642-831 CIT考试及格分数线

　　CCNA 642-831 CIT

　　考试时间:105分钟

　　考题数目:55-65题

　　及格分数:706分

　　考试内容:

　　Technology

　　Identify troubleshooting methods

　　Explain documentation standards and the requirements for document control

　　Implementation and Operation

　　Establish an optimal system baseline

　　Diagram and document system topology

　　Document end system configuration

　　Verify connectivit...[查看详情]