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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. Changes buffer size (max 256)
Router(config)#int fa 0/0
Router#terminal history size
Down arrow
see the terminal history size

2. Command-line interface
Router#access-enable
Router(config)#line aux
CLI
Which of the following commands displays the configurable parameters and statistics of all interfaces on a router?

3. Gives a message to every person dialing into or connecting to the router via Telnet or auxiliary port - or even through a console port
Router#mrinfo
Router(config)#banner motd
reinitialize the router and totally replace the running-config with the current startup-config
Router(config)#enable last-resort

4. Exit from the EXEC
% Invalid input detected at '^' marker.
Router#logout
% Incomplete command
Router(config)#line aux 0

5. Interface configuration mode
Router#login
What command do you type to save the configuration stored in RAM to NVRAM?
Router#clear
Router(config-if)#

6. Exit the console
set the name of a router to Chicago
% Incomplete command
Router#exit
Which command will delete the contents of NVRAM on a router?

7. See if a router's serial interface has a DCE cable connected
Which of the following commands will configure all the default VTY ports on a router?
Router>sh controllers s 0
Router(config)#banner
Router#clear counters s0/0

8. RJ-45 (8-pin modular) port; no password by default
Console port
Router#sh protocols
Enable the interface
Router#login

9. Erase start
Router#exit
Router(config)#interface CTunnel
If you wanted administrators to see a message when logging into the router - which command would you use?
Which command will delete the contents of NVRAM on a router?

10. Configure ethernet port 0
Used to verify configuration
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)#int ethernet 0
Router>enable

11. Configure serial port 5
Password required - but none set: Which of the following sequences will address this problem correctly?
see if a serial interface needed to provide clocking
Auxiliary port
Router(config)#int serial 5

12. Lex interface
delete the configuration stored in NVRAM
Router#logout
Router(config)#interface Lex
Console port

13. 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(config)#enable password
Auxiliary port
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Cisco IOS

14. Go back from privileged mode into user mode
EXEC session
see the terminal history size
Router#disable
Router#login

15. Enable secret Cisco
Router(config)#interface Tunnel
Which of the following commands sets the secret password to Cisco?
Router(config)#interface CTunnel
Router#disable

16. Sets the description of an interface; use it to keep track of circuit numbers - locations - etc.
set the enable secret password to cisco
Atlanta(config-if)#description Sales Lan
Router(config)#line console
Cisco IOS

17. Show protocols - show interfaces - show ip interface
Router#sh running-config (sh run)
Router#copy
Router(config)#interface Lex
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface? (Choose three.)

18. Stops console messages from popping up and disrupting the input you're trying to type
Router(config-line)#exec-timeout
Router(config-line)#logging synchronous
Auxiliary port
Router#sh int fastethernet 0/0

19. View the current config
Atlanta#sh run
Router(config-router)#
Enable the interface
Router(config)#interface Multilink

20. View the config that will run when the router is reloaded; tells us how much NVRAM is being used
Exec-timeout 1 44
Router#sh controllers serial 0/0
Atlanta#sh start
Router(config)#line aux 0

21. Configure fastethernet slot0/port0
Router(config)#int fa 0/0
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)#banner exec
Router#login

22. Turn off privileged commands
set the name of a router to Chicago
Router(config)#line aux 0
configure terminal (config t)
Router#disable

23. Manually save the file from DRAM to NVRAM
Atlanta#copy run start
Bring up Ethernet0
Router(config)#line tty
% Ambiguous command:

24. Log in as a particular user
Router#login
Router#access-profile
Router#mrinfo
Router(config)#banner exec

25. Finishes typing a command for you
Tab
You want to totally reinitialize the router and replace the current running-config with the current startup-config. What command will you use?
Router#mrinfo
Router#bfe

26. A line-activation (exec) banner to be displayed when an EXEC process is created
EXEC session
Router#logout
Which of the following commands will configure all the default VTY ports on a router?
Router(config)#banner exec

27. WAN connections
Router(config)#banner motd
Serial interfaces
Exec-timeout 1 44
Router(config)#line tty

28. Shows last command entered
Up arrow
Router(config-if)#clock rate 64000
Router(config)#service password-encryption
Bring up Ethernet0

29. Config t - line vty 0 4 - no login
Router(config)#service password-encryption
Router(config)#interface Async
Set telnet connection to have no password
Router(config-line)#exec-timeout

30. Clear counters on an interface
Router#erase
Router#clear counters s0/0
Which of the following commands will configure all the default VTY ports on a router?
Router(config-line)#exec-timeout

31. 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
reinitialize the router and totally replace the running-config with the current startup-config
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#clear counters s0/0
Router(config)#interface Group-Async

32. Sets the console password
Atlanta#erase startup-config
Router(config)#line console 0
Router#logout
Auxiliary port

33. There is more than one show command sthat starts with the letters ru.
Router(config)#banner incoming
Router#debug
What keystroke will terminate setup mode?
You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?

34. Serial interface
Router(config-if)#bandwidth 64
Router(config)#enable password todd
Router(config)#interface Serial
Router#login

35. Names the router Todd; Todd(config)#
Router(config)#service password-encryption
set the name of a router to Chicago
Router(config)#$
Router(config)#hostname Todd

36. Sets the aux password; Router(config-line)#password todd; Router(config-line)#login
Router(config)#interface Vif
Bandwidth
Serial0 is administratively down - line protocol is down
Router(config)#line aux 0

37. FastEthernet IEEE 802.3
Router#login
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
EXEC session
Router(config)#interface FastEthernet

38. For manual emergency modes setting
How many simultaneous Telnet sessions does a Cisco router support by default?
Router#mrinfo
Router#bfe
Router#logout

39. Open a terminal connection
You set the console password - but when you display the configuration - the password doesn't show up; it looks like this: Password 7098C0BQR
Router#connect
Router(config-line)#logging synchronous
Router#access-profile

40. Used by routing protocols such as IGRP - EIGRP - and OSPF to calculate the best cost (path) to a remote network
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?
EXEC session
Router>sh controllers s 0
Bandwidth

41. Dialer interface
What command do you type to save the configuration stored in RAM to NVRAM?
Router(config)#interface Dialer
Router#sh ip interface (brief)
global command

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

43. Global configuration mode
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 t
Atlanta#copy run start
Router(config)#enable last-resort

44. Config t - line console 0 - login - password todd
set a user-mode password for the console port
show inter et 0 and notice the port is administratively down
Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Bandwidth

45. Change a router configuration stored on a TFTP host
Atlanta(config-if)#description Sales Lan
Router#logout
Router#sh protocols
configure network (config net)

46. Config t - int e0 - no shut
Router(config)#line <0-70>
show inter et 0 and notice the port is administratively down
Router(config)#banner incoming
Router(config)#interface MFR

47. Lock the terminal
Setup mode
Router#lock
You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
Router#enable

48. Terminal controller
Router(config)#hostname Todd
Router(config)#line tty
Router#exit
Router>

49. 5
EXEC session
Router(config)#hostname Todd
Router#sh int ethernet0
How many simultaneous Telnet sessions does a Cisco router support by default?

50. Router(config-if)#ip address 172.16.20.2 255.255.255.0 secondary
Router#sh protocols
If you delete the contents of NVRAM and reboot the router - what mode will you be in?
Add a secondary IP address
Router#access-profile