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CCNA – Troubleshooting

March 15th, 2015 Go to comments

Question 1


The subnet of Fa0/0 of R2 is (range from to which covers the subnet of S0/1 interface so in fact the answer C is not correct. But from the output of the “show ip interface brief” command we see both Fa0/0 and S0/1 interfaces’ statuses are ‘up/up’ -> they are working normally. So we think there is a typo in the subnet mask of Fa0/0. It should not be ‘/26’ but longer one, ‘/28’, for example. So you should still choose answer C in this question.

Question 2


The “Operational Mode” is “static access” so this port is currently in access mode.

Question 3


Both routers must use the same password for CHAP to authentication.

Question 4


From the output we see the Serial0/0 of RouterA is in “status up/protocol down” state which indicates a Layer 2 problem so the problem can be:

+ Keepalives mismatch
+ Encapsulation mismatch
+ Clocking problem

Question 5

Question 6

Question 7


Now let’s find out the range of the networks on serial link:

For the network

Increment: 32
Network address:
Broadcast address:

For the network

Increment: 32
Network address:
Broadcast address:

-> These two IP addresses don’t belong to the same network and they can’t see each other -> D is the correct answer.

Question 8

Question 9


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.

Comments (36) Comments
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  1. Antony
    July 26th, 2015

    Q6 : answer is D ? please

  2. meet shah
    July 28th, 2015

    what is the answer of 6th please??

  3. brenny
    July 29th, 2015

    where are the questions?

  4. augustine
    August 11th, 2015

    where is the questions

  5. augustine
    August 11th, 2015

    where are the question?

  6. Niel
    August 18th, 2015

    Hi 9tut! i would just like to ask a questions are questions here are all up to date? are they all updated weekly? are they updated from time to time?

  7. shivam
    October 16th, 2015

    Can you please share the latest dumps?
    Thanks in advance.

  8. John
    November 3rd, 2015

    I taked the exam to day 3/11 many questions are changed and i got more than 5 simulation in my exam .. i faild ..
    Prepare u r self well .. gl :)

  9. Rohan Shetty
    November 8th, 2015

    For question 6

    C and E both can be correct answer.

  10. Teslacorp Nigeria
    November 8th, 2015

    I passed with 941/1000. 52 questions. OSPF, EIGRP, ACL 1 /2. Few new questions. Thanks to 9tut.com. dumps valid 95%. Pls guys you should be careful with answering the labs because the answers were actually different even though the topology and questions were the same. Try as much as possible to be well familiar with your hands-on lab. Good luck people. Over to CCNP. Took the exam on 7th of Nov 2015.

  11. Micheal
    November 25th, 2015

    Can anyone give me 400-051 exam’s dumps please….

  12. riyas
    January 20th, 2016

    Please can anyone send a ccna latest dumb going to do exam tomorrow.. So plesae urgent

  13. riyas
    January 20th, 2016

    Please can anyone send a ccna latest dumb going to do exam tomorrow.. So plesae urgent
    {email not allowed}

  14. hromana
    February 17th, 2016

    buenas a todos, solicito su plena información en lo referente a los laboratorios del examen de certificación, pues en pocos días tomare dicho examen y no tengo claro aun la metodología de los laboratorios ni los temas q ellos tratan,,gracias a todos por la amable colaboración

    aquí os dejo mi correo

    {email not allowed}

  15. hromana
    February 17th, 2016

    {email not allowed}
    aqui mi correo

  16. tousifqammar
    February 24th, 2016

    can you give me OSPF TSHOOT LABS

  17. ccii
    March 2nd, 2016

    Q4: ‘Interface S0/0 on RouterB is administratively down’ is also a good answer…

  18. rb
    April 4th, 2016

    @ccii .. Int s0/0 has not been assigned any IP addresses. So, question is only talking about first 2 interfaces.Mentioned above is the right answer.

  19. rb
    April 4th, 2016

    i want correct that.. i mean s0/1 has not been assigned any IP addresses. And int s0/0 is not down, both up and up.

  20. Adima
    May 13th, 2016

    100% valid pass guides of CCNA available at http://dumpsdownload.com/350-018-questions-pdf.html

  21. Anonymous
    May 18th, 2016

    Who can please tell me the email address for Cisco so that i can apply for my CCNA certificate, I passed my ccna exam last year may 2015 and till now i have not received my certificate.

  22. puneet
    June 22nd, 2016

    can anybody send latest dumps @ puneettrivedi06@gmail(dot)com. thanks in advance

  23. Anonymous
    June 30th, 2016

    Q.6 explanation? i have a feeling it is F.

  24. Zdeslav
    July 9th, 2016

    please send me any one 200-120 latest dump
    zdeslavkossi @ gmail.com

  25. Yep
    July 14th, 2016

    For Q:6, on a serial link, both connected interfaces have to be in the same subnet in order to communicate (“see each other”).

  26. Anonymous
    July 23rd, 2016

    please latest dumps em313det @ gmail .com

  27. Anonymous
    August 10th, 2016

    please sent the latest dung at {email not allowed}

  28. kk
    August 12th, 2016

    not able to see question .can see only explanation.what is the issue?

  29. kr
    November 21st, 2016

    i cannot view the questions only the explanation is visible to me

  30. Lo Sing
    November 30th, 2016

    Passed the CCNA Finally! I had to take the CCNA twice, as I failed on my first attempt. However for my second, I used the e8ay dump to study the update that happened for the CCNA and passed the exam finally :D All Questions came from the dump. The e8ay dump has a total of 142 questions (58 + 84 updated questions) and the 4 variations of the ACL sims. I didn’t check out the study materials here but they seem helpful stated from other comments.

    Information to the exam:

    54 MC Questions
    1 ACL simulation
    1 EIGRP TSHOOT Simlet
    1 OSPF TShoot Simlet
    1 RIPv2 Simlet
    Total of 58 questions.

    If you would like to check out the materials I used, here you go:

    e8ay.com/itm/322336782526? (change the “8” to a “b”)

    Good Luck!

  31. Mr.Grinch
    December 12th, 2016

    Finally passed the CCNA! Was a long journey, as I got caught in the update…. However came across the e8ay materials mentioned by others and passed the exam yesterday! No new questions.

    The link below above is the materials I used

  32. Cameron
    December 27th, 2016

    Overall there are many websites of Cisco 200-125. But I’m recommend to braindumps4it of Cisco https://www.braindumps4it.com/braindumps-200-125.html Exam. Once ready, you can easily pass it exam in first attempt.

  33. fascinator pink
    January 5th, 2017

    As a Newbie, I am constantly browsing online for articles that can aid me. Thank you


  34. Hussain Ali
    January 6th, 2017

    Mr.Grinch Can you send me latest dumps for 200-125..

  35. Ali
    March 3rd, 2017

    Can anybody share dump CCNA-200-125

  36. Leanne
    August 30th, 2017

    I would such as toward do the job audio.


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