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2008-10-17 14:25:18


  本人以前通过CCNA,提供一些建议。
  
  
  
  条件:
  
  英语一定要好
  
  对OSI参考模型,TCP/IP模型有很好的掌握
  
  使用过CISCO的低端器
  
  对机的运作功能有一些基础
  
  
  
  
  
  
  
  A.CCNA Certification Exam Objective
  
  
  
  The CCNA (640-407)exam will consist of a combination of the following objective
  
  
  
  
  
  1.Identify and describe the functions of each of the seven layers of the OSI reference
  model
  
  2.Describe connection-oriented network service and connectionless network service
  ,and identif the key differences between them.
  
  3.Describe data link addresses and network addresses,and identify the
  
  key differences between them
  
  4.Define and describe the function of a MAC address.
  
  5.Define flow control and describe the three basic metthods used in netwoeking
  
  6.Differentiate between the following WAN services:frame relay,isdn/lapd,hdlc,&ppp
  
  7.Log into a router in both user and privileged modes
  
  8.Use the context-sensitive help facility
  
  9.Use the command history and editing features
  
  10.Examine router elements(RAM,ROM,CDP,show)
  
  11.Manage configuration files from the privileged exec mode
  
  12.Control router passwords,identification and banner
  
  13.Identify the main cisco IOS commands for router startup
  
  14.Check an initial configuration using the setup command
  
  15.Copy and manipulate configuration files
  
  16.List the commands to load cisco IOS software from:flash memory,a tftp server,or
  ROM
  
  17.Prepare to backup,upgrade,and load a backup IOS software image
  
  18.List the key internetworking functions of the OSI network layer and
  
  how they are performed in a router
  
  19.Describe the two parts of network addressing,then identify the part
  
  s in specific protocl address examples
  
  20.List problems that each routing type encounters when dealing with topology
  changes and
  
  describe techniques to reduce the number of theseproblems
  
  21.Explain the services of separate and integrated multiprotocol routing
  
  22.Describe the different classes of IP address
  
  23.Configure IP address
  
  24.Verify IP address
  
  25.Prepare the initial configuration of your router and enable ip
  
  26.Add the RIP routing protocol to your configuration
  
  27.Add the IGRP routing protocol to your configuration
  
  28.List the required IPX address and encapsulation type
  
  29.Enable the Novell IPX protocol and configure interfaces
  
  30.Monitor Novell IPX operation on the router
  
  31.Recognize key frame relay terms and features
  
  32.List commands to configure frame relay LMIs,maps,and subinterfaces
  
  33.List commands to monitor frame relay operation in the router
  
  34.Identify PPP operations to encapsulate WAN data on cisco routers
  
  35.Configure standard access lists to figure IP traffic
  
  36.Monitor and verify selected access list operations on the router
  
  37.State a relevant use and context for isdn networking
  
  38.Identify isdn protocols,function groups,reference points,and channels
  
  39.Describe cisco's implementation of isdn bri
  
  40.Describe the advantages of LAN segmentation
  
  41.Describe LAN segmentation using bridges
  
  42.Describe LAN segmentation using routers
  
  43.Describe LAN segmentation using switches
  
  44.Name and describe two switching methods
  
  45.Describe full and half duplex Ethernet operation
  
  46.Identify at least 3 reasons why the industry uses a layered model
  
  47.Identify the functions of each layer of the ISO/OSI refernce model
  
  48.Define and explain the 5 conversion steps of data encapsulation
  
  49.Identify the functions of the TCP/IP transport-layer protocols
  
  50.Identify the functions of the TCP/IP network-layer protocols
  
  51.Identify the functions performed by ICMP
  
  52.Configure extended access lists to filter IP traffic
  
  53.Configure IPX access lists and SAP filters to control basic Novell traffic
  
  54.Monitor and verify selected access list operations on the router
  
  55.Describe network congestion problem in ethernet networks
  
  56.Describe the benefits of network segmentation with bridges
  
  57.Describe the benefits of network segmentation with routers
  
  58.Describe the benefits of network segmentation with switches
  
  59.Describe the features and benefits of fast ethernet
  
  60.Describe the guidelines and distance limitations of fast ethernet
  
  61.Distinguish between cut-through and store-and-forward Lan switching
  
  62.Describe the operation of the spanning tree protocol and its benefits
  
  63.Describe the benefits of virtual LANs
  
  
  
【责编:admin】

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