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CCNA – Cisco IOS Questions

November 7th, 2011 Go to comments

Here you will find answers to Cisco IOS Questions

Note: If you are not sure about the boot sequence of a router/switch, please read my Cisco Router Boot Sequence Tutorial.

Question 1

How does using the service password encryption command on a router provide additional security?

A. by encrypting all passwords passing through the router
B. by encrypting passwords in the plain text configuration file
C. by requiring entry of encrypted passwords for access to the device
D. by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges
E. by automatically suggesting encrypted passwords for use in configuring the router

 

Answer: B

Explanation

By using this command, all the (current and future) passwords are encrypted. This command is primarily useful for keeping unauthorized individuals from viewing your password in your configuration file.

Question 2

Refer to the diagram. What is the largest configuration file that can be stored on this router?

R# show version
Cisco IOS Software. 1841 Software (C1841-IPBASE-M}, Version 12.4(1a), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986*2005 by Cisco Systems, Inc.
Compiled Fri 27-May-0512:32 by hqluong

ROM: System Bootstrap. Version 12.3(8r)T8, RELEASE SOFTWARE (fc1)

N-East uptime is 5 days, 49 minutes
System returned to ROM by reload at 15:17:00 UTC Thu Jun 8 2006
System image file is “flash:c1841-ipbase-mz.124-1a.bin”

Cisco 1841 (revision 5.0) with 114688K/16384K bytes of memory.
Processor board ID FTX0932W21Y
2 FastEthernet interfaces
2 Low-speed serial(sync/async) interfaces
DRAM configuration is 64 bits wide with parity disabled.
191K bytes of NVRAM.
31360K bytes of ATA CompactFlash (Read/Write)

Configuration register Is 0×2102

R#

A. 191K bytes
B. 16384K bytes
C. 31369K bytes
D. 114688K bytes

 

Answer: A

Explanation

Non-volatile RAM (NVRAM) holds the router’s startup configuration file. NVRAM contents are not lost when the router is powered down or reloaded.

Question 3

Which command shows system hardware and software version information?

A. show configuration
B. show environment
C. show inventory
D. show platform
E. show version

 

Answer: E

Question 4

Refer to the exhibit. If number 2 is selected from the setup script, what happens when the user runs setup from a privileged prompt?

[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.

Enter your selection [2]:

A. Setup is additive and any changes will be added to the config script.
B. Setup effectively starts the configuration over as if the router was booted for the first time.
C. Setup will not run if an enable secret password exists on the router.
D. Setup will not run, because it is only viable when no configuration exists on the router.

 

Answer: A

Question 5

Which command shows your active Telnet connections?

A. show sessions
B. show cdp neighbors
C. show users
D. show queue

 

Answer: A

Explanation

The “show users” shows telnet/ssh connections to your router while “show sessions” shows telnet/ssh connections from your router (to other devices). The question asks about “your active Telnet connections”, meaning connections from your router so the answer should be A.

Question 6

Which command can you use to determine the cisco ios feature set on a cisco router?

A. show version
B. dir flash:include ios
C. show environment
D. show diag
E. show inventory

 

Answer: A

Question 7

A system administrator types the command to change the hostname of a router. Where on the Cisco IFS is that change stored?

A. NVRAM
B. RAM
C. FLASH
D. ROM
E. PCMCIA

 

Answer: B

Explanation

The change is only reflected in the running-config on RAM. It can be lost if we reset the router without saving it.

Note: Cisco IFS means “Cisco IOS File System”

Question 8

Before installing a new upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information? (Choose two)

A. the amount of available ROM
B. the amount of available flash and RAM memory
C. the version of the bootstrap software present on the router
D. show version
E. show processes
F. show running-config

 

Answer: B D

Explanation

When upgrading new version of the IOS we need to copy the IOS to the Flash so first we have to check if the Flash has enough memory or not. Also running the new IOS may require more RAM than the older one so we should check the available RAM too. We can check both with the “show version” command.

Question 9

Refer to the exhibit. A network administrator configures a new router and enters the copy startup-config running-config on the router. The network administrator powers down the router and sets it up at a remote location. When the router starts, it enter the system configuration dialog as shown. What is the cause of the problem?

— System Configuration Dialog —
Would you like to enter the initial configuration dialog? [yes/no]: % Please answer yes’ or ‘no’.
Would you like to enter the initial configuration dialog? [yes/ho]: n

Would you like to terminate autoinstall? [yes]:

Press RETURN to get started!

A. The network administrator failed to save the configuration.
B. The configuration register is set to 0×2100.
C. The boot system flash command is missing from the configuration.
D. The configuration register is set to 0×2102.
E. The router is configured with the boot system startup command.

 

Answer: A

Explanation

The “System Configuration Dialog” appears only when no startup configuration file is found. The network administrator has made a mistake because the command “copy startup-config running-config” will copy the startup config (which is empty) over the running config (which is configured by the administrator). So everything configured was deleted.

Note: We can tell the router to ignore the start-up configuration on the next reload by setting the register to 0×2142. This will make the “System Configuration Dialog” appear at the next reload.

Question 10

Refer to the exhibit. What can be determined about the router from the console output?

1 FastEthernet/IEEE 802.3 interface(s)
125K bytes of non-volatile configuration memory.
65536K bytes of ATA PCMCIA card at slot 0 (Sector size 512 bytes) .
8192K bytes of Flash internal SIMM (Sector size 256K).

———-System Configuration Dialog ———-

Would you like to enter the initial configuration dialog? [yes/no]:

A. No configuration file was found in NVRAM.
B. No configuration file was found in flash.
C. No configuration file was found in the PCMCIA card.
D. Configuration file is normal and will load in 15 seconds.

 

Answer: A

Explanation

When no startup configuration file is found in NVRAM, the System Configuration Dialog will appear to ask if we want to enter the initial configuration dialog or not.

Comments (410) Comments
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  1. Diego
    December 10th, 2011

    I think that the Q4 needs some explanation, because it’s a little confused

  2. xallax
    December 10th, 2011

    A. Setup is additive and any changes will be added to the config script.
    those changes that were saved on the first run of the setup mode were all store in RAM (running-config) and the new changes will replace some, but will also be additive to others.

    B. Setup effectively starts the configuration over as if the router was booted for the first time.
    nope, that’s done if you by-pass the startup-config

    C. Setup will not run if an enable secret password exists on the router.
    yeah… right… and if you type in the password what’s there to prevent you from starting the setup mode?

    D. Setup will not run, because it is only viable when no configuration exists on the router.
    false. it runs when there’s no startup-config OR when the startup-config was by-passed OR when the user types in “setup” at the privileged mode

  3. z
    December 13th, 2011

    hi somebody explain am gonna write exam on dec 15….

    which cisco command can help to determine the timing of various debug events ,relative to each other ,when u are debugging a complicated router issue?
    A, service timestamps log datetime msec
    b,clock calendar-valid
    c,show clock detail
    d, service timestamps debug datetime msec

    answer A(dumps)

  4. xallax
    December 14th, 2011

    @z
    it says “a complicated router issue”, that makes me think it affects more than just what comes out of debugging messages

    at first i was thinking D…

    anyway, here’s what cisco says about service timestamps:
    http://www.cisco.com/en/US/docs/ios/12_3/configfun/command/reference/cfr_1g07.html#wp1029551

  5. waseem
    December 16th, 2011

    Plz corrent Question No: 8 explanation: When upgrading new version of the IOS we need to copy the IOS to “NVRAM” (Its not NVRAM, Its the Flash memory) so first we have to check if the flash has enough memory or not.

  6. 9tut
    December 16th, 2011

    @waseem: Yesm thanks for your detection. I updated it!

  7. arf
    December 16th, 2011

    @xallax
    i am appearing 4 the xm next week
    plz send me the latest dumps.

    my id: royalking.iqbal34@gmail.com

  8. xallax
    December 16th, 2011

    @arf
    you can find some practice questions on http://www.ciscovce.com

  9. Mohit
    January 2nd, 2012

    @all

    I have doubt on question no 5.
    i have used command “show sessions” but not able to see any connection.
    But with show user command i am able to see the users.

  10. ns
    January 2nd, 2012

    mohit,

    in order to dispay sesions at first u have to open some vty sesions and leave the sesion without close it push “cntrl-shift-6″ then “x”. u can open many session in this way.

    and “show user” command will display anytime becose it will be at least u that is a user over there.

    i think it works in this way. if i am wrong pleas correct me.

    thaks all.

  11. Krishnendu
    January 2nd, 2012

    Is this site effective?Please any one tell me…..

  12. Jack
    January 5th, 2012

    i am appearing 4 the xm 640-802 any one have last update?

  13. Solo
    January 11th, 2012

    Are this real CCNA/CCENT exam questions? or just sample questions from 9tut

  14. Ahmed Akhmis
    January 13th, 2012

    Q No 5

    answer is Show users not show Session

    A. show sessions
    B. show cdp neighbors
    C. show users
    D. show queue

    NO C is correct Answer.

  15. Peter
    January 13th, 2012

    @Ahmed, If my understanding is correct,

    show session – will display you the telnet connections you(your router) have made to a remot router.
    show user – will display you howmany remote users have telnetted in to your router.
    So…here the Answer to Q No 5 is A only

    Thanks,
    Anju

  16. Ahmed Akhmis
    January 14th, 2012

    @Petr
    i only test it in one roture when i ru show sessions it display telnet connection at this time i open 2 telnet session but when i run show user it show no active user where the same 3 seassin was runing, kindly advice.

  17. Ahmed Akhmis
    January 14th, 2012

    @Peter

    show session show 1 console session and 2 telnet but show user did not display anything.

  18. Ahmed Akhmis
    January 14th, 2012

    sorry i writ it incorrct
    whan i run t in running router and with 1 console session and2 telnet session

    show session did not display anything.
    show users display 1 console and 2 telnet.

    @9tut kindly remove my last 2 Post

  19. Anonymous
    January 19th, 2012

    can any body tell me how to recover a password of router 2801 my email address is
    engr_sajid_khan@yahoo.com

  20. vitalis
    January 26th, 2012

    am going to write exam on 20th February what shall i do in order to pass exam?

  21. FUTURE CCIE
    January 28th, 2012

    @ vitalis, read the sybex v.5 and practice some dumps

  22. Anonymous
    January 28th, 2012

    Passed ICND2 today with 944!! I had questions #1 #3 #5 on my test today

  23. 0Waste
    January 30th, 2012

    I am writing exam next month can somebody send me dumps for CCNA. my email is dassing.smarty@gmail.com

  24. Ranjitha
    February 2nd, 2012

    q2.10 are there for me todays xam

  25. Rico
    February 2nd, 2012

    Hi 9tut… Hi Guys! Can you please help me… I will take exam this Feb. Please send me latest dump so that I will have an idea for the exam.. rico.blake@ymail.com

    Thanks Guys!

  26. Eng-Support
    February 2nd, 2012

    Latest dump PLZ Guys thanks in advance

    hossam.saber4@gmail.com

  27. venceslau
    February 4th, 2012

    bom dia 9tut

    eu gostari de saber porque que o comando show sessions não apresenta dados alguns e o show users apresenta quando eu tenho ver as sessões abertas no router olhe para o exemplo abaixo:

    RT_Customers#sh se
    RT_Customers#sh sessions
    % No connections open
    RT_Customers#sh use
    RT_Customers#sh users
    Line User Host(s) Idle Location
    2 vty 0 josediogo 10.1.1.5 2d03h fw01.gang.com
    3 vty 1 josediogo 10.1.1.5 1d20h fw01.gang.com
    * 4 vty 2 venceslaum idle 00:00:00 198.255.198.242

    Interface User Mode Idle Peer Address

    RT_Customers#

  28. Praveen Kumar
    February 6th, 2012

    I am going to take CCNA exam this month so I want the latest dumps for the same. Please someone send me the latest dumps so that I can clear my exam. My E-mail is (parvin_kumar333@yahoo.com). It would be so kind of you.

  29. Don
    February 7th, 2012

    somebody explain Q4. please

  30. Walid
    February 9th, 2012

    I am siting the exam in 2 weeks, can some also send me the latest exam dumps please.

    email address is wallysouki@hotmail.com

    much appreciated if i can get tem

  31. Joe
    February 9th, 2012

    Confirmed Q 5 Answer is Sh users not sh Sessions.

  32. Angad
    February 11th, 2012

    I am going to appear for CCNA exam nect week so Please send me latest dumps at
    Angad.Singh@singhsons.net.au

  33. uday
    February 11th, 2012

    @Don
    As u can see the user has finished entering his basic configuration in the set up dialog. This configuration will be saved in the running-configuration at RAM. WHEN the user wishes to add more confiugrations about, Router he can get into the previlege exec-mode and his further configurations will also be added and updated to the running-configuration in RAM.
    …..I hope the is clear. If u feel it unclear then read the Ciso Router boot sequence tutorial given by 9tut on top of the webpage.

  34. Anonymous
    February 11th, 2012

    Hi!
    I am going to take CCNA exam at 16th Feb; Can you help me?
    Please send me latest dump . . .

    pabartur@gmail.com

    Thanks Guys!

  35. pabartur
    February 11th, 2012

    Hi!
    I am going to take CCNA exam at 16th Feb; Can you help me?
    Please send me latest dump . . .

    pabartur@gmail.com

    Thanks Guys!

  36. Don
    February 12th, 2012

    @3uday

    thanks

  37. Arpit
    February 12th, 2012

    Q1.. what is mean for Plain text configuration file..??..means we can see the text but not judge the correct password or anything else…!!

  38. 9tut
    February 13th, 2012

    @Arpit: The configuration you had made on Cisco routers & switches are stored in a file. The “Plain text configuration file” here means the startup-config file in NVRAM or the running-config file in RAM. Without using the service password encryption command, the passwords stored in these files are not encrypted and everyone can easily “steal” it (because it is in clear text – not encrypted) by using the “show running-config” or “show startup-config”.

  39. ITGalaxy
    February 13th, 2012

    I will be taking my CCNA 640-802 exam next week, can someone please send me the latest dumps? I really need help…

    Thank you guys very much.

  40. ITGalaxy
    February 13th, 2012

    I will be taking my CCNA 640-802 exam next week, can someone please send me the latest dumps? I really need help…

    idaelp@gmail.com

    Thank you guys very much.

  41. NewB
    February 15th, 2012

    Hello,

    can someone send me the newest braindumps?
    For Practice is it possible to have the simulations in Packettracer?

    quicktor2000@yahoo.de

  42. kris
    February 16th, 2012

    Please send latest dumps to kstojilkov@yahoo.com
    thanks

  43. Tandel Mohit
    February 16th, 2012

    please send latest dumps of CCNA to tandelmohit@gmail.com

  44. Shan
    February 18th, 2012

    I will be taking my CCNA 640-802 exam in 2 weeks,can someone please send me the latest dumps? much appreciated .accesssolution@gmail.com

  45. Shan
    February 18th, 2012

    I will be taking my CCNA 640-802 exam in 2 weeks,can someone please send me the latest dumps? much appreciated accesssolution@gmail.com

  46. V
    February 19th, 2012

    I am going to appear for CCNA exam next week 27th Feb… I need the latest Dumps… Pls send me at vivekvruti@gmail.com

  47. Anonymous
    February 20th, 2012

    y 19th, 2012

    I am going to appear for CCNA exam next week 29th Feb… I need the latest Dumps… Pls send me at flecher19@.com

  48. alfredo
    February 21st, 2012

    I am going CCNA exam 29 de febrero. I need the latest dumps… alfred_azul1@hotmail.com

  49. Anonymous
    February 23rd, 2012

    can anyone plz send me the latest dumps i have my exam on 27 feb. Thankz in advance

    mabdullahassad@gmail.com

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