CCNA真题(2)基本 IOS 配置4

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)?
B. Your configuration is missing parameters.
D. You have typed setup in the Privileged mode.
42: You type in a command and are shown the following output:
What does this mean?
B. You did not enter all the keywords or values required by this 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?
B. The router truncates the command because commands longer than one line are not allowed.
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?
B. Router1#history size 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.)
B. Show flash
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?
B. Logging synchronous
D. Exec message readout
47: You are configuring a router and issue the command interface ethernet 1/0/0. What do the numbers represent?
B. Slot/interface/port
D. Slot/port adapter/port number
48: Which of the following commands correctly sets the physical speed of a serial interface to 64Kbps?
B. Router1(config-if)#bandwidth 64000
D. Router1(config-if)#clockrate 64000
49: In what mode do you use the encapsulation command?
B. Sub-interface Configuration mode
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?
B. It is the result of a service password-encryption command.
D. It is the result of an enable secret command.