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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. Clear counters on an interface
Router#clear counters s0/0
Router#debug
Router#logout
Which of the following commands sets the secret password to Cisco?

2. Config t
Down arrow
Router(config)#$
Enter global configuration mode
Which of the following commands sets the secret password to Cisco?

3. Interface configuration mode
Router(config-if)#
reinitialize the router and totally replace the running-config with the current startup-config
outer#disconnect
Used to verify configuration

4. PGM Multicast Host interface
EXEC session
Router#clear
Router(config)#interface Vif
Router(config)#line console

5. Configure fastethernet slot0/port0
Auxiliary port
Router(config)#int fa 0/0
Label the interface 'WAN to Miami'
Used to verify configuration

6. To configure routing protocols such as RIP and IGRP
configure network (config net)
Router(config-subif)#
Router(config-router)#
Exec-timeout 1 44

7. Enter configuration mode
Router#configure
configure network (config net)
Router(config)#interface Tunnel
Router(config)#enable use-tacacs

8. Async Group interface
Label the interface 'WAN to Miami'
Router#copy
Router(config)#interface Group-Async
Configure an IP address on e0

9. Exit from the EXEC
Router#sh controllers serial 0/0
Router(config)#interface BVI
Router#logout
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?

10. The kernel of Cisco routers and most switches
Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Router#sh ip interface (brief)
Cisco IOS
Router(config)#router rip

11. Finishes typing a command for you
Router(config)#interface Group-Async
Tab
Router(config)#interface Tunnel
How many simultaneous Telnet sessions does a Cisco router support by default?

12. Shows previous commands entered
Down arrow
Router(config)#service password-encryption
Booting a router
Router(config)#banner exec

13. Shows terminal configurations and history buffer size
Router(config)#interface Loopback
Router(config-if)#bandwidth 64
Router#sh terminal
Router(config)#interface Tunnel

14. Enable secret Cisco
Router(config)#enable last-resort
configure terminal (config t)
Router(config-if)#bandwidth 64
Which of the following commands sets the secret password to Cisco?

15. Debugging functions (see also 'undebug')
Router(config)#interface Loopback
Enter interface configuration mode and configure serial 0/0
Router#debug
Atlanta#sh run

16. WAN connections
Router(config)#line <0-70>
CLI
Serial interfaces
Router(config)#line aux 0

17. Multilink Frame Relay bundle interface
Router#sh terminal
Auxiliary port
You set the console password - but when you display the configuration - the password doesn't show up; it looks like this: Password 7098C0BQR
Router(config)#interface MFR

18. FastEthernet IEEE 802.3
Router(config)#interface FastEthernet
Router(config-if)#
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?
Router(config)#interface Multilink

19. SFRemote(config-line)#login
Router(config)#int fa 0/0
Router(config)#interface Virtual-Template
see if a serial interface needed to provide clocking
Password required - but none set: Which of the following sequences will address this problem correctly?

20. The administrator has the interface shut down.
Router(config)#int fa 0/0
Serial0 is administratively down - line protocol is down
You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
You set the console password - but when you display the configuration - the password doesn't show up; it looks like this: Password 7098C0BQR

21. Go back from privileged mode into user mode
Router(config)#line console 0
Router(config)#banner motd
Router(config)#interface CTunnel
Router#disable

22. 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(config)#interface Serial
Router#copy
Router(config)#enable last-resort
Router(config)#line <0-70>

23. This tells the router to authenticate through a TACACS server
Router(config)#enable use-tacacs
Router#lock
Cisco IOS
Router(config)#interface Virtual-Template

24. Show terminal
EXEC session
see the terminal history size
% Ambiguous command:
Which of the following commands sets the secret password to Cisco?

25. To be displayed on terminals connected to reverse Telnet lines. This banner is useful for providing instructions to users who use reverse Telnet.
Router(config)#enable password todd
Router(config)#banner incoming
view the config
Router(config)#enable secret

26. Sh run
Router(config)#line console
You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
view the config
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?

27. Sets the enable password on older - pre-10.3 systems - and isn't ever used if an enable secret is set
% Invalid input detected at '^' marker.
Router(config)#enable password
Router#clock
Router(config-line)#

28. Exit the console
Exec-timeout 1 44
Router(config)#banner motd
Which command will delete the contents of NVRAM on a router?
Router#logout

29. 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#sh ip interface (brief)
Router(config)#interface Loopback
If you delete the contents of NVRAM and reboot the router - what mode will you be in?
Router#configure

30. Request neighbor and version information from a multicast router
Atlanta(config-if)#description Sales Lan
Router#sh protocols
Router#mrinfo
configure terminal (config t)

31. Provides basic configuration for the system hardware as well as the software version - the names and sources of configuration files - and the boot images
Auxiliary port
Router#sh version
Router#exit
Router>

32. Gives a message to every person dialing into or connecting to the router via Telnet or auxiliary port - or even through a console port
Auxiliary port
Router(config)#banner motd
Router#disable
Router#sh int ethernet0

33. Sets the telnet password
% Incomplete command
Router#sh controllers serial 0/0
Router(config-subif)#
Router(config-line)#line vty 0 4

34. Interface range command
Router(config)#interface range
Router(config)#interface Group-Async
Booting a router
show inter et 0 and notice the port is administratively down

35. Configure a DCE serial interface in bits per second
Router(config)#interface Group-Async
Router(config-line)#exec-timeout
set the name of a router to Chicago
Router(config-if)#clock rate 64000

36. 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
Router#copy
Router(config)#interface BVI
Router(config)#interface Vif
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?

37. Erase flash or configuration memory
Enter global configuration mode
Router#erase
Which of the following commands sets the secret password to Cisco?
Atlanta#copy run start

38. Exit the console
Router>enable
Bring up Ethernet0
Router#exit
Router(config)#hostname Todd

39. Router(config)#line vty 0 4
Router#access-enable
EXEC session
Which of the following commands will configure all the default VTY ports on a router?
Router(config)#int serial 5

40. RJ-45 (8-pin modular) port; no password by default
Console port
CLI
Enable the interface
Serial0 is administratively down - line protocol is down

41. If no commands have been typed in 1 minute and 44 seconds - the console connection will be closed
Which command will delete the contents of NVRAM on a router?
Router(config)#line <0-70>
Exec-timeout 1 44
Router(config)#int ethernet 0

42. Displays information about the physical interface itself. It'll also give you the type of serial cable plugged into a serial port. Usually - this will only be a DTE cable that plugs into a type of data service unit (DSU)
Router#configure
If you delete the contents of NVRAM and reboot the router - what mode will you be in?
Router(config)#interface Null
Router#sh controllers serial 0/0

43. Router(config-if)#ip address 172.16.20.2 255.255.255.0 secondary
Router#terminal history size
Add a secondary IP address
Enter global configuration mode
Router#disable

44. 'out-of-band' (meaning out of the network) access
Auxiliary port
Router(config)#enable secret
Atlanta#erase startup-config
Setup mode

45. Cisco CLI that exists in user mode and privileged mode
Auxiliary port
EXEC session
Router(config)#interface Lex
Router#sh ip interface (brief)

46. Privileged mode
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Router#
Router>logout
set a serial interface to provide clocking to another router at 64Kb

47. Slot/Port for Modems
Router(config)#line x/y
Router(config)#line tty
Router(config)#interface Null
Router(config)#enable use-tacacs

48. Config t - hostname Chicago
set a user-mode password for the console port
set the name of a router to Chicago
Enter global configuration mode
What keystroke will terminate setup mode?

49. Sets the aux password; Router(config-line)#password todd; Router(config-line)#login
Router#help
Router(config)#banner incoming
Router(config)#line aux 0
Router(config)#interface Lex

50. Change the startup-config stored in NVRAM
Router#mrinfo
configure memory (config mem)
Add a secondary IP address
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?