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Introduction To The Cisco IOS

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Cisco Internetwork Operating System
How many simultaneous Telnet sessions does a Cisco router support by default?
Cisco IOS
Atlanta#copy run start
Router#configure

2. Multiple commands that begin with the string you entered and it's not unique - use the '?'
Router(config)#interface MFR
% Ambiguous command:
Router(config)#interface Group-Async
What keystroke will terminate setup mode?

3. Shows terminal configurations and history buffer size
Label the interface 'WAN to Miami'
Router#help
Router#disable
Router#sh terminal

4. Shows last command entered
Up arrow
Serial0 is administratively down - line protocol is down
Used to verify configuration
Router(config)#interface MFR

5. There is more than one show command sthat starts with the letters ru.
Router(config)#interface Loopback
You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
Router(config)#service password-encryption
Router#access-profile

6. Part of the command is missing.
% Invalid input detected at '^' marker.

7. Null interface
Router(config)#interface Serial
Router(config)#interface Null
Which command will delete the contents of NVRAM on a router?
Router#sh running-config (sh run)

8. Lex interface
Auxiliary port
Router(config)#enable use-tacacs
Used to verify configuration
Router(config)#interface Lex

9. Config t - enable secret cisco
Bandwidth
Router#erase
set the enable secret password to cisco
delete the configuration stored in NVRAM

10. Show protocols - show interfaces - show ip interface
configure terminal (config t)
Router#sh history
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface? (Choose three.)
Router#lock

11. Ping - traceroute - and telnet
Router#mrinfo
Router(config)#interface Vif
Router(config)#banner exec
Used to verify configuration

12. Set only once and affects the entire router
Router#access-template
Router(config)#line tty
global command
Router>

13. Request neighbor and version information from a multicast router
Router#mrinfo
Router(config)#line aux 0
Atlanta#erase startup-config
Router(config)#hostname Todd

14. Apply user-profile to interface
Router#access-profile
Console port
Password required - but none set: Which of the following sequences will address this problem correctly?
What keystroke will terminate setup mode?

15. Configure the bandwidth of a serial interface in kilobits
Router(config)#line console
Router(config-if)#bandwidth 64
Router#access-profile
Enter interface configuration mode and configure serial 0/0

16. Mode that a router will enter if no configuration is found in nonvolatile RAM when the router boots
Setup mode
Router(config)#router rip
If you delete the contents of NVRAM and reboot the router - what mode will you be in?
Booting a router

17. Allows you to configure modem commands so that a modem can be connected to the router
Router#logout
Atlanta#sh run
Auxiliary port
Router(config)#interface FastEthernet

18. Configure serial port 5
configure terminal (config t)
Atlanta#copy run start
Router(config)#int serial 5
Which of the following commands will configure all the default VTY ports on a router?

19. Command entered incorrectly
% Invalid input detected at '^' marker

20. Show terminal
Router(config)#line vty
Label the interface 'WAN to Miami'
see the terminal history size
Router(config)#interface range

21. Allows you to still enter the router if you set up authentication through a TACACS server and it's not available. But it isn't used if the TACACS server is working.
Router#access-enable
Router(config)#enable last-resort
Router(config-line)#line vty 0 4
Router#configure

22. 10Mbps Ethernet network connection
Serial0 is administratively down - line protocol is down
Enable the interface
Attachment Unit Interface (AUI) connection
Router#exit

23. Encrypts passwords; sh run - config t - Router(config)#no service password-encryption
Router(config)#interface Null
Router#sh version
Router(config)#service password-encryption
Router(config-line)#

24. Physical layer
What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive: Serial1 is a down - line protocol is down
If you wanted administrators to see a message when logging into the router - which command would you use?
Set telnet connection to have no password
You set the console password - but when you display the configuration - the password doesn't show up; it looks like this: Password 7098C0BQR

25. Configure a DCE serial interface in bits per second
What command do you type to save the configuration stored in RAM to NVRAM?
Router(config-if)#clock rate 64000
Router(config)#interface Tunnel
Router(config)#interface Group-Async

26. Description WAN to Miami

27. Async interface
Router(config)#interface Async
configure terminal (config t)
Auxiliary port
Router#enable

28. Config t - line console 0 - login - password todd
Serial0 is administratively down - line protocol is down
set a user-mode password for the console port
Cisco IOS
Router(config)#service password-encryption

29. Async Group interface
Router(config)#interface Group-Async
Router#lock
Router(config)#line aux 0
Router#connect

30. First Line number
Router(config)#int fa 0/0
Router(config)#line <0-70>
Router>enable
configure terminal (config t)

31. Exit the console
Router>logout
Router(config)#enable password todd
Router#sh int fastethernet 0/0
set a serial interface to provide clocking to another router at 64Kb

32. Go back from privileged mode into user mode
Booting a router
Router(config)#interface Group-Async
Router#disable
Router(config)#interface Virtual-Template

33. This tells the router to authenticate through a TACACS server
Bandwidth
Add a secondary IP address
Router(config)#enable use-tacacs
Down arrow

34. Command string isn't done yet
Router(config)#line aux
Router(config-router)#
Router(config)#interface Lex
% Incomplete command

35. Clear counters on an interface
Router#clear counters s0/0
Router>logout
Router(config-line)#line vty 0 4
If you delete the contents of NVRAM and reboot the router - what mode will you be in?

36. Sets the user-mode password for the auxiliary port. It's usually used for attaching a modem to the router - but it can be used as a console as well
Router(config)#line aux
Password required - but none set: Which of the following sequences will address this problem correctly?
Cisco IOS
% Invalid input detected at '^' marker.

37. Copy configuration or image data
Router#copy
Atlanta#copy run start
Router#sh running-config (sh run)
Router#sh terminal

38. Provides status of the interface - the IP address and mask - information on whether an access list is set on the interface - and basic IP information
Router#clock
delete the configuration stored in NVRAM
Router#connect
Router#sh ip interface (brief)

39. Change the running-config running in dynamic RAM (DRAM)
Router>
Router(config)#interface Serial
configure terminal (config t)
see if a serial interface needed to provide clocking

40. Manually save the file from DRAM to NVRAM
Router(config)#interface Serial
Router#
Router(config)#$
Atlanta#copy run start

41. Access from console port - -modem into AUX port - and telnet
Router(config-line)#exec-timeout
Which command will delete the contents of NVRAM on a router?
EXEC session
Atlanta#sh run

42. Subinterfaces allow you to create logical interfaces within the router
Router#logout
Router(config-subif)#
Router(config)#interface Null
CLI

43. The kernel of Cisco routers and most switches
Router#clock
Router#terminal history size
Router(config)#interface MFR
Cisco IOS

44. Exit from the EXEC
Used to verify configuration
outer#disconnect
Router#terminal history size
Router#exit

45. Privileged mode
Router#help
Router>enable
Router(config)#interface Null
configure network (config net)

46. View hardware addressing - logical addressing - and statistics of an interface
set a serial interface to provide clocking to another router at 64Kb
Router#sh int fastethernet 0/0
Down arrow
Enter interface configuration mode and configure serial 0/0

47. Bridge-Group Virtual Interface
Router#disable
Router(config-if)#clock rate 64000
Router(config)#interface BVI
Router#

48. Manage the system clock
Setup mode
Router>sh controllers s 0
Router(config)#interface Null
Router#clock

49. Erase startup-config
Enter interface configuration mode and configure serial 0/0
If you wanted administrators to see a message when logging into the router - which command would you use?
delete the configuration stored in NVRAM
Configure an IP address on e0

50. Finishes typing a command for you
Router(config)#$
outer#disconnect
Tab
EXEC session