本人以前通过思科认证CCNA，现在说说自己的建议。

要想通过思科认证CCNA考试，条件之一是英语一定要好；其次，对OSI参考模型，TCP／IP模型有很好的掌握；第三，使用过CISCO的低端路由器；第四，对交换机的运作功能有一些基础。

下面是关于思科认证CCNA的一些考试例题，供参考。

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,%26amp;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 Cisco 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 parts 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

希望以上关于思科认证CCNA的一些建议对你有所帮助！

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