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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. Banner motd
If you wanted administrators to see a message when logging into the router - which command would you use?
Cisco IOS
configure memory (config mem)
Router(config)#interface Lex

2. Finishes typing a command for you
What command do you type to save the configuration stored in RAM to NVRAM?
Router(config-line)#line vty 0 4
Router(config)#interface BVI
Tab

3. Loopback interface
Router(config)#line vty
Router(config)#interface Loopback
Auxiliary port
If you wanted administrators to see a message when logging into the router - which command would you use?

4. Erase flash or configuration memory
Router#erase
Router(config)#line tty
You need to find the broadcast address used on a LAN on your router. What command will you type into the router from user mode to find the broadcast address?
Router(config)#line console 0

5. Sets the enable password on older - pre-10.3 systems - and isn't ever used if an enable secret is set
Router#sh history
Router#clock
Router(config)#enable password
Router#sh ip interface (brief)

6. Shows last command entered
Router#clear counters s0/0
Router#sh protocols
Router(config)#line console
Up arrow

7. Bridge-Group Virtual Interface
Router(config)#service password-encryption
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface? (Choose three.)
Router>enable
Router(config)#interface BVI

8. Go back from privileged mode into user mode
Router(config)#banner motd
see if a serial interface needed to provide clocking
If you delete the contents of NVRAM and reboot the router - what mode will you be in?
Router#disable

9. See if a router's serial interface has a DCE cable connected
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
Router#login
Router>sh controllers s 0
Down arrow

10. Multiple commands that begin with the string you entered and it's not unique - use the '?'
Set telnet connection to have no password
Router#logout
Router(config)#line x/y
% Ambiguous command:

11. Exit from the EXEC
CLI
Router(config)#line aux
Exec-timeout 1 44
Router#exit

12. Serial interface
Attachment Unit Interface (AUI) connection
Router(config)#interface Serial
Enter interface configuration mode and configure serial 0/0
Router(config)#interface FastEthernet

13. The command service password-encryption - from global configuration mode - will encrypt the passwords.

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14. Manually save the file from DRAM to NVRAM
Router(config-router)#
Router(config-if)#
Router(config-if)#bandwidth 64
Atlanta#copy run start

15. Ctrl+C
What keystroke will terminate setup mode?
Router#access-template
CLI
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?

16. Show interfaces
Router(config-line)#line vty 0 4
Router#bfe
Which of the following commands sets the secret password to Cisco?
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?

17. Disconnect an existing network connection
global command
Bandwidth
Password required - but none set: Which of the following sequences will address this problem correctly?
outer#disconnect

18. The show controllers serial 0 command will show you whether either a DTE or DCE cable is connected to the interface. If it is a DCE connection - you need to add clocking with the clock rate command.
Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Atlanta(config-if)#description Sales Lan
Router(config)#line vty
Router(config)#int serial 5

19. Configure a DCE serial interface in bits per second
Cisco IOS
Router(config-if)#clock rate 64000
Router#sh history
Router(config)#banner login

20. A line-activation (exec) banner to be displayed when an EXEC process is created
Serial0 is administratively down - line protocol is down
Router(config)#banner exec
see the terminal history size
Router#copy

21. Sets a Telnet password on the router. If this password isn't set - then Telnet can't be used by default
Router(config)#line vty
Which of the following commands sets the secret password to Cisco?
Enter global configuration mode
Router#bfe

22. Config t - hostname Chicago
set the name of a router to Chicago
delete the configuration stored in NVRAM
Enter interface configuration mode and configure serial 0/0
Router#access-profile

23. Lock the terminal
Router#lock
Router>
Used to verify configuration
Router#bfe

24. Manage the system clock
Router#help
Router(config)#interface Loopback
set the name of a router to Chicago
Router#clock

25. Router(config)#line vty 0 4
Router#enable
Which of the following commands will configure all the default VTY ports on a router?
You set the console password - but when you display the configuration - the password doesn't show up; it looks like this: Password 7098C0BQR
configure network (config net)

26. Copy start run doesn't replace the configuration - it appends it. To completely replace the running-config with the startup-config - you must reload the router.
Router#enable
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Used to verify configuration
Router(config)#enable password

27. Clear counters on an interface
Router#clear
Enter global configuration mode
Router#clear counters s0/0
Router(config)#interface Tunnel

28. PGM Multicast Host interface
Router#sh int fastethernet 0/0
delete the configuration stored in NVRAM
Router(config)#interface Vif
outer#disconnect

29. A login banner to be displayed on all connected terminals; displayed after the MOTD banner but before the login prompts; delete it with the no banner login command
Router(config)#interface range
Router(config-line)#line vty 0 4
Router(config)#banner login
Down arrow

30. Provides basic configuration for the system hardware as well as the software version - the names and sources of configuration files - and the boot images
Router#sh version
Router(config)#enable password
Router(config)#interface BVI
How many simultaneous Telnet sessions does a Cisco router support by default?

31. Sets the description of an interface; use it to keep track of circuit numbers - locations - etc.
Atlanta(config-if)#description Sales Lan
Auxiliary port
Router(config)#enable secret
Enter global configuration mode

32. Show protocols - show interfaces - show ip interface
% Ambiguous command:
Router(config-line)#line vty 0 4
% Invalid input detected at '^' marker
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface? (Choose three.)

33. Description WAN to Miami

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34. Sets the enable password to todd
Router(config)#enable password todd
Router(config)#banner
Router#sh terminal
Cisco IOS

35. This is the newer - encrypted password that overrides the enable password if it's set
Router(config)#enable secret
Router#clock
Router(config-if)#bandwidth 64
set the enable secret password to cisco

36. Create a temporary Access-List entry
Router>
EXEC session
Router(config)#interface Tunnel
Router#access-enable

37. Sets the enable secret password to todd
Atlanta#copy run start
Router#logout
Atlanta#sh start
Router(config)#enable secret todd

38. The command show ip protocols will actually show you the broadcast address for each interface—too bad it isn't a possible answer. Your best answer is show interfaces - which will provide the IP address and mask for each interface. You can then determ
You need to find the broadcast address used on a LAN on your router. What command will you type into the router from user mode to find the broadcast address?
Enable the interface
set a user-mode password for the console port
Which command will delete the contents of NVRAM on a router?

39. Apply user-profile to interface
Router#access-profile
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?
Router(config)#interface Dialer
Router(config)#enable use-tacacs

40. Power-on seft test (POST) - loads the Cisco IOS from flash - loads config from NVRAM
view the config
Booting a router
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Router#access-profile

41. Global configuration mode and changes what's known as the running-config
What keystroke will terminate setup mode?
Router(config)#banner motd
Router#login
configure terminal (config t)

42. Description of the interactive help system
Router#sh protocols
Router(config)#int serial 5
Router(config)#interface Virtual-TokenRing
Router#help

43. Privileged mode
Router#
Add a secondary IP address
Router(config)#interface Loopback
Router(config)#interface Virtual-Template

44. Config t - enable secret cisco
Router(config)#enable secret todd
set the enable secret password to cisco
Router(config)#interface Null
show inter et 0 and notice the port is administratively down

45. To configure routing protocols such as RIP and IGRP
Router(config)#interface FastEthernet
view the config
Router(config-router)#
Label the interface 'WAN to Miami'

46. Sets the aux password; Router(config-line)#password todd; Router(config-line)#login
Router(config)#line aux 0
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface? (Choose three.)
Router(config-subif)#
Which command will delete the contents of NVRAM on a router?

47. Turn off privileged commands
Router#logout
Router(config)#line x/y
set the enable secret password to cisco
Router#disable

48. Ping - traceroute - and telnet
Used to verify configuration
reinitialize the router and totally replace the running-config with the current startup-config
Router(config)#interface BVI
Password required - but none set: Which of the following sequences will address this problem correctly?

49. Null interface
Router#sh version
Router(config)#interface Null
Router(config)#$
Router#exit

50. Show controllers int
see if a serial interface needed to provide clocking
What command do you type to save the configuration stored in RAM to NVRAM?
configure terminal (config t)
Configure an IP address on e0