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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. Global configuration mode and changes what's known as the running-config
Router(config-subif)#
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?
How many simultaneous Telnet sessions does a Cisco router support by default?
configure terminal (config t)

2. Request neighbor and version information from a multicast router
Router#mrinfo
Serial interfaces
configure terminal (config t)
EXEC session

3. Command-line interface
Router(config)#interface MFR
Router(config)#banner exec
CLI
Router(config)#interface Dialer

4. PGM Multicast Host interface
Router(config)#interface Vif
EXEC session
% Invalid input detected at '^' marker
Router(config)#line x/y

5. Change the running-config running in dynamic RAM (DRAM)
Serial0 is administratively down - line protocol is down
configure network (config net)
configure terminal (config t)
Router#sh int ethernet0

6. Shows terminal configurations and history buffer size
show inter et 0 and notice the port is administratively down
Router#sh terminal
Router#logout
Router(config)#service password-encryption

7. Sh run
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?
What keystroke will terminate setup mode?
Serial0 is administratively down - line protocol is down

8. This tells the router to authenticate through a TACACS server
You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
Router(config)#enable use-tacacs
Auxiliary port
set the enable secret password to cisco

9. Sets the description of an interface; use it to keep track of circuit numbers - locations - etc.
Router(config)#banner login
configure network (config net)
Atlanta(config-if)#description Sales Lan
Router#disable

10. Open a terminal connection
Bring up Ethernet0
Router#lock
Router#connect
Router(config)#interface Virtual-Template

11. Exit the console
Router#exit
Router#configure
Router#mrinfo
Router(config)#service password-encryption

12. Erase start
Which command will delete the contents of NVRAM on a router?
Router(config-line)#line vty 0 4
Router(config)#interface CTunnel
view the config

13. Sets the telnet password
Up arrow
Router#access-enable
Router(config-line)#line vty 0 4
reinitialize the router and totally replace the running-config with the current startup-config

14. Shows previous commands entered
Router(config-line)#line vty 0 4
Down arrow
Router(config)#interface MFR
Router(config)#enable use-tacacs

15. User mode
Router(config-subif)#
Router#clear counters s0/0
Router>
Router(config)#line aux

16. Sets the aux password; Router(config-line)#password todd; Router(config-line)#login
Router(config)#interface Virtual-Template
Router(config)#line aux 0
configure memory (config mem)
Tab

17. Change the startup-config stored in NVRAM
configure memory (config mem)
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Router#connect
Router(config)#line <0-70>

18. Multilink Frame Relay bundle interface
Router#disable
Router(config)#interface MFR
Router(config)#line console 0
Router(config)#line <0-70>

19. Router#copy run startup
Router>enable
set the name of a router to Chicago
What command do you type to save the configuration stored in RAM to NVRAM?
Router(config)#line vty

20. Mode that a router will enter if no configuration is found in nonvolatile RAM when the router boots
delete the configuration stored in NVRAM
Setup mode
What keystroke will terminate setup mode?
Console port

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(config)#enable password
Router(config)#enable last-resort
Which of the following commands sets the secret password to Cisco?
If you delete the contents of NVRAM and reboot the router - what mode will you be in?

22. Debugging functions (see also 'undebug')
% Invalid input detected at '^' marker
Router(config)#banner motd
set a user-mode password for the console port
Router#debug

23. Config t - enable secret cisco
Router(config)#line aux
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?
Auxiliary port
set the enable secret password to cisco

24. WAN connections
Serial interfaces
Router(config)#interface Async
Up arrow
Router#configure

25. Privileged mode
Router#
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(config-line)#
Router(config)#banner

26. Command string isn't done yet
What keystroke will terminate setup mode?
% Incomplete command
Router>sh controllers s 0
Router#debug

27. This is the newer - encrypted password that overrides the enable password if it's set
Router#mrinfo
Router#access-profile
Router(config)#enable secret
Cisco IOS

28. Subinterfaces allow you to create logical interfaces within the router
Router(config-subif)#
global command
Router#bfe
Router>

29. Changes buffer size (max 256)
Router#terminal history size
configure terminal (config t)
set a user-mode password for the console port
EXEC session

30. Delete the start-up config
Router(config)#$
Which command will delete the contents of NVRAM on a router?
Bandwidth
Atlanta#erase startup-config

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
see if a serial interface needed to provide clocking
Router(config-line)#logging synchronous
Router(config)#int fa 0/0
Router#sh version

32. Ping - traceroute - and telnet
Cisco IOS
Used to verify configuration
Router#connect
Router(config)#banner

33. Show interfaces
global command
Bring up Ethernet0
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?
Cisco IOS

34. Configure ethernet port 0
Router(config)#int ethernet 0
Up arrow
Cisco IOS
Router(config)#enable use-tacacs

35. First Line number
Cisco IOS
Router(config)#line <0-70>
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Router#login

36. View the config that will run when the router is reloaded; tells us how much NVRAM is being used
Router(config)#line vty
Router(config)#interface Group-Async
Atlanta#sh start
Router(config)#interface Vif

37. Turn off privileged commands
configure network (config net)
Router#disable
Router(config-subif)#
Router#exit

38. Exit the console
Router#sh running-config (sh run)
Router>logout
Router>
view the config

39. Config t - int e0 - no shut
Router#clock
Router#exit
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?
show inter et 0 and notice the port is administratively down

40. SFRemote(config-line)#login
Password required - but none set: Which of the following sequences will address this problem correctly?
Bandwidth
Router(config)#banner exec
Add a secondary IP address

41. See if a router's serial interface has a DCE cable connected
Router(config-subif)#
set the name of a router to Chicago
Router(config-line)#
Router>sh controllers s 0

42. Provide information once connected to the device
configure terminal (config t)
Router(config)#interface Multilink
Router(config)#banner
Bandwidth

43. Clear counters on an interface
Router#clear counters s0/0
configure memory (config mem)
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#erase

44. Finishes typing a command for you
Password required - but none set: Which of the following sequences will address this problem correctly?
Atlanta#erase startup-config
Tab
Console port

45. Indicates that the line has been scrolled to the left
Password required - but none set: Which of the following sequences will address this problem correctly?
Router(config)#$
set the enable secret password to cisco
Attachment Unit Interface (AUI) connection

46. 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(config-line)#
Router#sh ip interface (brief)
configure terminal (config t)
You set the console password - but when you display the configuration - the password doesn't show up; it looks like this: Password 7098C0BQR

47. Erase flash or configuration memory
Add a secondary IP address
If you delete the contents of NVRAM and reboot the router - what mode will you be in?
Router#erase
Down arrow

48. To configure user-mode passwords
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(config-line)#
Router(config)#line console
Booting a router

49. Ctrl+C
What keystroke will terminate setup mode?
Router#logout
see the terminal history size
If you delete the contents of NVRAM and reboot the router - what mode will you be in?

50. Bridge-Group Virtual Interface
Router(config)#interface BVI
Router#copy
Router#
Router(config)#line vty