《Cisco技术网》-新版CCNA考试内容说明

　　*考试题型

    3道路由模拟题

    少数连线题

    多数单项、多项选择题及其它形式的题型

　　*考试内容

    planning & designing、implementation & operation、troubleshooting及technology。

    即：网络设计规划、网络搭建作业、网络故障处理、网络技术要点这四项。

　　1、网络设计规划：

    应用思科网络技术搭建一个简单的网络

    规划ip寻址方案，分析设计需求

    基于用户需求选择适当的路由协议

　　应用思科网络技术搭建一个简单的接入网络

　  基于用户需求配置适当的访问控制列表

　　基于用户需求选择适当的广域网服务

　　2、网络搭建作业：

    根据用户需求，配置适当路由协议

　　在路由器和主机上配置ip地址，子网掩码，网关地址

　　配置路由器附带管理功能

　　在交换机上配置vlan及交换机间通信

　　操作实现局域网

　　在特定的网络环境下配置交换机

　　管理操作系统及设备配置文件

　　执行路由器初始化配置

　　执行交换初始化配置

　　实现访问控制列表

　　实现简单的广域网协议

　　3、网络故障处理：

    利用osi 7层模型知识知道解决网络故障问题

　　完成局域网及虚拟局域网故障处理

　　解决路由协议问题

　　解决ip地址及主要配置问题

　　解决运转网络的设备故障问题

　　解决访问控制列表引起的故障问题

　　执行简单的广域网故障处理

　　4、网络技术要点：

    用osi分层模型描述网络通信

　　描述生成树协议的处理过程

　　比较对照个中局域网环境的主要特性

　　评估路由协议特征

　　评估tcp/ip协议通信处理过程及相关协议组

　　描述网络设备组件特性

　　评估tcp/ip协议通信处理过程及相关协议组

　　评估网络设备组件特性

　　评估数据包处理规则

　　评估广域网关键特性

　　思科互联网学习解决小组（internet learning solutions gruop）负责人介绍：新推出的ccna 640－801考试内容新增ccnp知识点，包括：ospf、eigrp、可变长度子网掩码（variable length subnet masking）及高级变换技术配置。此次升级考试并不是缩小考试范围，它的广度和深度比640－607增加不少。

26: You need to set up a password that will prevent unauthorized users from telnetting into your router. What series of commands would you use?

A. Acme1(config)# line console 0
Acme1(config-line)# password acme
Acme1(config-line)# login

C. Acme1(config)# line vty 0
Acme1(config-line)# enable secret acme
Acme1(config-line)# login

D. Acme1(config)# line vty 0
Acme1(config-line)# password acme
Acme1(config-line)# login

27: When you are setting up your serial interfaces, what does the clockrate command do for your connection?

D. Establishes the time on the router

28: You need to set up passwords on all your default Telnet lines. What command would you start with?

D. Router1(config)#line vty 0 4

29: You can execute show commands at which prompt? (Choose two.)

E. romon1>

30: You are configuring your router and type in an Enable password and an Enable Secret password. Your fellow network technician asks you why you have two passwords set when you need only one. What do you tell him?

B. If you reverted to an older version of the IOS, it would not understand the Secret password.

D. It is a failsafe method of ensuring that people need to type two passwords instead of just one.

31: You need to get back to Privileged EXEC mode from Interface Configuration mode. What is the quickest method?

D. Type exit

32: When you are establishing a PPP link, which of the following would be negotiated? (Choose three.)

E. Multilink Protocol

33: Which of the following commands returns your router to a previously saved configuration?

D. Router1#reload

34: You are in Interface Configuration mode and would like to recall the last command you typed, move your cursor to the beginning of the command line, and type no before the recalled command. You notice your up- and down-arrow keys do not function because you are using an older terminal program. What command combinations could you use to recall the previous command and move your cursor to the beginning of the line?

Press Ctrl+P to recall the previous command and Ctrl+A to move to the beginning of the command line.

Press Ctrl+L to recall the previous command and Ctrl+B to move to the beginning of the command line.

Press Ctrl+D to recall the previous command and Ctrl+A to move to the beginning of the command line.

Press Ctrl+E to recall the previous command and Ctrl+A to move to the beginning of the command line.

35: What is the baud rate setting for your terminal emulation program so that you can communicate through your console port?

D. 36300

36: What must be configured on a Cisco device to enable Telnet functionality?

D. vty ports

37: You are configuring your Cisco router and need to go back to User EXEC mode. What command takes you back to User EXEC mode?

D. Router1#disable

38: Which of the following commands places an IP address on your Catalyst switch?

39: Which of the following commands would you enter to receive this output shown in the figure above?

D. Router1#show Version

40: Your senior network administrator is unable to telnet to a Catalyst switch because she forgot the IP address. You have physical access and are able to console in. Which of the following commands is the best to get the IP address on the switch?

41: You have powered up your Cisco 3640 router. The first thing you see is this output. Which of the following statements about this screen is accurate (see figure above)?

D. You have typed setup in the Privileged mode.

42: You type in a command and are shown the following output:

A. You did not enter enough characters for your device to recognize the command.

D. Context-sensitive help is unable to help you with this command.

43: You are typing a command into the Cisco IOS. It is more than one terminal line long. What will the IOS do?

A. The router automatically moves the cursor to the next line and uses a caret (^) to indicate the line break.

B. The router truncates the command because commands longer than one line are not allowed.

C. The router automatically scrolls the line to the left and uses a dollar sign ($) to indicate that there is text to the left of the $.

D. The router shortens all the commands to squeeze the command on to the screen.

44: You want to change the size of the command history buffer. Which of the following commands will set it permanently to 100?

D. Router1(config-line)#history size 100

45: You have configured a description on your serial interfaces. Which of the following commands displays the description? (Choose two.)

D. Show ip protocols

46: You are typing commands into your Cisco IOS on your 3640 router. However, your typing is consistently interrupted by console messages, forcing you to retype. Which of the following commands forces the IOS to retype your original input after it displays the console message?

D. Exec message readout

47: You are configuring a router and issue the command interface ethernet 1/0/0. What do the numbers represent?

D. Slot/port adapter/port number

48: Which of the following commands correctly sets the physical speed of a serial interface to 64Kbps?

D. Router1(config-if)#clockrate 64000

49: In what mode do you use the encapsulation command?

D. Privileged mode

50: You are configuring your router, and your boss happens to look over your shoulder as you type a show running-config command. She sees one of the lines that says password 7 14361F009A056E7D and asks what this means. What do you tell her?

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 hosts per subnet. This will help alleviate congestion on the network. What subnet mask can you use to create the subnets necessary to meet the given criteria?

E. 255.255.255.240

27: Which of the following would a Class A network be assigned to?

D. An individual

28: A client has the IP address 192.168.5.98/27. Which of the following addresses are on the same subnet as this host? (Choose two.)

D. 192.168.5.110

29: Which of the following IP addresses is not a public IP address that can be routed over the Internet?

E. 203.33.45.22

30: You are given a Class B network. What is the default subnet mask assigned to the Class B network?

D. 0.0.0.0

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 you've assigned. Which of the following explains the router's refusal to take the IP address?

E. It is a private IP address.

32: You are a network technician at Acme, Inc. You are required to divide the 172.12.0.0 network into subnets. Each subnet must have the capacity of 458 IP addresses. Also, according to the requirements, you must provide the maximum number of subnets. Which subnet mask should you use?

D. 255.255.0.0

33: What is the subnetwork and broadcast IP address of 192.168.2.37 with the subnet mask of 255.255.255.248?

E. 192.168.2.56/192.168.2.63

34: One of your co-workers at Acme, Inc., needs to convert the binary number 11011010 into a decimal. What is the decimal equivalent?

E. 222

35: One of your co-workers at Acme, Inc., needs to convert the binary number 01011010 into a decimal. What is the decimal equivalent?

D. 97

36: One of your co-workers at Acme, Inc., needs to convert the binary number 11010110 into a decimal. What is the decimal equivalent?

D. 255

37: One of your co-workers at Acme, Inc., needs to convert the binary number 10110110 into a decimal. What is the decimal equivalent?

D. 212

38: You are configuring a subnet for the Acme, Inc., branch office in Beijing. You need to assign IP addresses to hosts in this subnet. You have been given the subnet mask of 255.255.255.224. Which of these IP addresses would be valid? (Choose three.)

F. 217.63.12.192

39: You are a network technician at Acme, Inc. You have subnetted the 208.98.112.0 network with a /28 mask. Your boss asks you how many usable subnetworks and usable host addresses per subnet this will provide. What should you tell her, assuming your router is using ip subnet-zero?

D. The application layer must assume responsibility for the correct sequencing of the data packets.

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 boss asks you how many usable subnetworks and usable host addresses per subnet this will provide. What should you tell her, assuming your router cannot use ip subnet-zero?

E. 14 networks and 14 hosts

42: Which of the following IP addresses are considered "network" addresses with a /26 prefix? (Choose two.)

E. 165.203.8.255

43: Identify three valid hosts in any subnet of 192.168.32.0, assuming the subnet mask used is 255.255.255.240. (Choose three.)

F. 192.168.32.208

44: A Class C network address has been subnetted with a /27 mask. Which of the following addresses is a broadcast address for one of the resulting subnets?

F. 198.57.78.254

45: What is the subnetwork address for a host with IP address 165.100.5.68/28?

F. 165.100.5.1

46: Your boss wants to know what TCP stands for. What do you tell him?

D. Transport Control Protocol

47: Your boss wants to know what UDP stands for. What do you tell him?

D. User Datagram Protocol

48: Which of the following statements accurately describes UDP?

A. UDP copies files between a computer and a system running rshd, the remote shell service (daemon).

B. UDP is a member of the TCP/IP suite of protocols that governs the exchange of electronic mail between message transfer agents.

C. UDP is a member of the TCP/IP suite of protocols and is used to copy files between two computers on the Internet. Both computers must support their respective roles: one must be a client, and the other a server.

D. UDP is a TCP complement that offers a connectionless datagram service guaranteeing neither delivery nor correct sequencing of delivered packets (much like IP).

49: Which of the following host addresses are members of networks that can be routed across the public Internet? (Choose three.)

F. 214.192.48.254

50: You are connecting your Serial 0/1 interface to the Internet. Which of the following need to be done for the connection to work? (Choose two.)