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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. Config t - line vty 0 4 - no login
Set telnet connection to have no password
Router#connect
Router#
Router(config-line)#exec-timeout

2. Command-line interface
Router#clear counters s0/0
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?
Configure the interface IP address to '10.1.5.255 255.255.252.0'
CLI

3. The administrator has the interface shut down.
If you wanted administrators to see a message when logging into the router - which command would you use?
Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Router(config)#$
Serial0 is administratively down - line protocol is down

4. Config t - enable secret cisco
set the enable secret password to cisco
Router#sh terminal
Router(config)#interface MFR
Bandwidth

5. Sets a Telnet password on the router. If this password isn't set - then Telnet can't be used by default
Router#mrinfo
Router#terminal history size
Router(config)#line vty
Router(config)#$

6. Log in as a particular user
Router#login
Router(config)#int fa 0/0
Router>enable
Router(config)#interface Lex

7. Async interface
configure network (config net)
Router(config)#line aux 0
Router(config)#int fa 0/0
Router(config)#interface Async

8. Async Group interface
Router(config)#banner incoming
Router#disable
Router(config)#banner exec
Router(config)#interface Group-Async

9. Config t - int e0 - no shut
show inter et 0 and notice the port is administratively down
Router(config)#line vty
Router#disable
Which command will delete the contents of NVRAM on a router?

10. Go back from privileged mode into user mode
Router#access-template
Router(config)#interface CTunnel
What keystroke will terminate setup mode?
Router#disable

11. Show protocols - show interfaces - show ip interface
Router#debug
% Invalid input detected at '^' marker
% 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.)

12. Loopback interface
Cisco IOS
Router(config)#interface MFR
Router(config)#enable password
Router(config)#interface Loopback

13. Create a temporary Access-List entry
Router#access-template
Router#logout
Router#sh history
Exec-timeout 1 44

14. Terminal controller
Router(config)#line tty
Router(config)#interface Lex
Password required - but none set: Which of the following sequences will address this problem correctly?
Router(config)#int fa 0/0

15. Names the router Todd; Todd(config)#
Router(config)#interface Group-Async
Router(config)#hostname Todd
Router>
Router(config)#interface CTunnel

16. A line-activation (exec) banner to be displayed when an EXEC process is created
Router#logout
Router(config)#banner exec
What command do you type to save the configuration stored in RAM to NVRAM?
Router(config)#line aux

17. Exit from the EXEC
Router#logout
Router(config)#banner login
reinitialize the router and totally replace the running-config with the current startup-config
Router(config-if)#

18. 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)#interface CTunnel
You type Router#sh ru and receive an % ambiguous command error. Why did you receive this message?
Router#config t

19. FastEthernet IEEE 802.3
Router#terminal history size
% Invalid input detected at '^' marker.
Router(config)#interface FastEthernet
Auxiliary port

20. 5
What keystroke will terminate setup mode?
Router(config-if)#clock rate 64000
How many simultaneous Telnet sessions does a Cisco router support by default?
% Invalid input detected at '^' marker.

21. Cisco Internetwork Operating System
see if a serial interface needed to provide clocking
Router#sh controllers serial 0/0
Cisco IOS
Router(config)#interface Group-Async

22. The kernel of Cisco routers and most switches
global command
Cisco IOS
Router#exit
Router#clock

23. Enter configuration mode
Router#configure
see the terminal history size
Router(config-line)#
Configure an IP address on e0

24. 10Mbps Ethernet network connection
Router(config)#line tty
Router#login
Router#sh int fastethernet 0/0
Attachment Unit Interface (AUI) connection

25. PGM Multicast Host interface
Router#logout
see the terminal history size
Router(config)#interface Vif
outer#disconnect

26. Show info for ethernet0
Router#sh running-config (sh run)
Router(config)#line console 0
Router#copy
Router#sh int ethernet0

27. Access from console port - -modem into AUX port - and telnet
EXEC session
Router#access-profile
Router(config)#interface BVI
Router(config)#line aux

28. Shows the running config; passwords may not be encrypted
Router#sh running-config (sh run)
% Invalid input detected at '^' marker
Configure an IP address on e0
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?

29. Bridge-Group Virtual Interface
Router(config)#interface BVI
Router#exit
Router>sh controllers s 0
Router(config)#enable secret

30. Global configuration mode and changes what's known as the running-config
Router#clear
configure terminal (config t)
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)#enable secret

31. Exit the console
Router(config)#$
Set telnet connection to have no password
Router>logout
configure network (config net)

32. 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)
Which of the following commands sets the secret password to Cisco?
Router#sh controllers serial 0/0
Router#disable
Attachment Unit Interface (AUI) connection

33. Interface s0/0
configure network (config net)
Router(config)#$
Enable the interface
Enter interface configuration mode and configure serial 0/0

34. Apply user-profile to interface
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?
Router#disable
Router#access-profile

35. Finishes typing a command for you
Router(config)#$
Tab
Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Atlanta#erase startup-config

36. Erase startup-config
Router#terminal history size
delete the configuration stored in NVRAM
Router(config)#line <0-70>
global command

37. Shows last command entered
outer#disconnect
% Ambiguous command:
Up arrow
Router#help

38. Configure the bandwidth of a serial interface in kilobits
Router(config-if)#bandwidth 64
Atlanta#sh run
Router>logout
Router(config)#line aux 0

39. Quick status of layers 1 and 2 of each interface as well as the IP addresses used
Router(config)#interface CTunnel
Router(config)#interface Group-Async
Router(config)#line console
Router#sh protocols

40. View hardware addressing - logical addressing - and statistics of an interface
Router#erase
Router#sh int fastethernet 0/0
Router(config)#interface Serial
Enable the interface

41. Description of the interactive help system
Router#help
Router#copy
Enter interface configuration mode and configure serial 0/0
Router(config-line)#

42. Changes buffer size (max 256)
Atlanta#copy run start
Router(config-line)#exec-timeout
Router#terminal history size
Auxiliary port

43. Open a terminal connection
set a serial interface to provide clocking to another router at 64Kb
Router(config-line)#logging synchronous
global command
Router#connect

44. Disconnect an existing network connection
outer#disconnect
Set telnet connection to have no password
Router(config)#interface Lex
Router(config)#line x/y

45. Turn off privileged commands
Router#disable
Router(config-if)#bandwidth 64
Router(config)#interface MFR
Router#debug

46. Router(config)#line vty 0 4
Router(config)#line x/y
Which of the following commands will configure all the default VTY ports on a router?
view the config
Router#sh terminal

47. 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 vty
Router(config)#$
Router(config)#enable password todd
Router(config)#line aux

48. Setup mode
Booting a router
Router#logout
Router(config-line)#exec-timeout
If you delete the contents of NVRAM and reboot the router - what mode will you be in?

49. Encrypts passwords; sh run - config t - Router(config)#no service password-encryption
Router(config)#interface Multilink
Router(config)#service password-encryption
Router>
Configure the interface IP address to '10.1.5.255 255.255.252.0'

50. Configure fastethernet slot0/port0
Router(config)#int fa 0/0
Which command will show you whether a DTE or a DCE cable is plugged into serial 0?
Router#logout
configure memory (config mem)