Home > CCNA VTP SIM Question


February 21st, 2014 Go to comments


Refer to the topology below, you are only allowed to access the CLI of Sw-AC3 to answer some questions. This does not require any configuration.


You can download this sim to practice here (but notice that this sim is not perfect, only for practicing purpose): http://congressreiki.ranm.org/?all=download/9tut.com_CCNA_vtp_sim.zip

If you are not sure about VTP, please read my VTP Tutorial

Question 1


To find out which interface associated with a given MAC address, use the show mac address-table command. It shows the learned MAC addresses and their associated interfaces. After entering this command, you will see a MAC address table like this:


From this table we can figure out that the MAC address 0010.5a0c.ffba is associated with interface Fa0/8.

Note: There are some reports that the “show mac-address-table” command does not exist. So if you cannot use the “show mac-address-table” command then try using the “show mac address-table” (without “-“) instead.

Question 2


Use the show interface trunk command to determine the trunking status of a link and VLAN status. This command lists port, its mode, encapsulation and whether it is trunking. The image below shows how it works:


(This image is used for demonstration only)

Question 3


VLAN-R1 is the router directly connected to Sw-Ac3 switch, so we can use the show cdp neighbors command to see:

1. Neighbor Device ID : The name of the neighbor device;

2. Local Interface : The interface to which this neighbor is heard

3. Capability: Capability of this neighboring device – R for router, S for switch, H for Host etc.

4. Platform: Which type of device the neighbor is

5. Port ID: The interface of the remote neighbor you receive CDP information

6. Holdtime: Decremental hold time in seconds

Sample output of show cdp neighbors command:


One thing I want to notice you is “Local Intrfce” in the image above refers to the local interface on the device you are running the “show cdp neighbors” command

Question 4


First we use the show spanning-tree vlan 1 to view the spanning-tree information of VLAN 1


From the “Cost 19”, we learn that the root switch is directly connected to the Sw-Ac3 switch over a 100Mbps Ethernet link

Notice that if you see all of the interface roles are Desg (designated) then you can confirm Sw-Ac3 switch is the root bridge for this VLAN (VLAN 1).

If you see there is at least one Root port in the interface roles then you can confirm Sw-Ac3 is not the root bridge because root bridge does not have root port. In this case, we notice that the root port on Sw-Ac3 switch is FastEthernet0/12, so we have to figure out which switch is associated with this port -> it is the root bridge. You can verify it with the show cdp neighbors command:


The “Local Intrfce” column refers to the interface on the switch running “show cdp neighbors” command. In this case, Sw-DS1 is associated with interface FastEthernet0/12 -> Sw-DS1 is the root bridge

Question 5


First we have to identify which VLAN interface Fa0/4 belongs to by the show vlan command


From the exhibit we know that VLAN 44 is configured on router using sub-interface Fa0/0.44 with IP address


Therefore the default gateway of the host should be

Question 6


To view the VTP configuration information, use the show vtp status command


So we knew Sw-Ac3 received VLAN information from (notice:the IP address may be different). Finally we use the show cdp neighbors detail to find out who is:


Note: If in the exam you find that “Configuration last modified by” then “” here indicates it does not receive VLAN information from anyone -> Sw-Ac3 is also the local updater. Therefore the answer in this case is Sw-Ac3.

Question 7

Answer and Explanation

First we should view the VTP configuration of switch Sw-Ac3 by using the show vtp status command on Sw-Ac3


Notice that its configuration revision number is 5 and VTP Domain Name is home-office

Next, from the exhibit we know that SwX has a revision number of 6, which is greater than that of Sw-Ac3 switch, and both of them have same VTP Domain Name called “home-office”.


Therefore SwX will replace vlan information on other switches with its own information. We should check vlan information of Sw-Ac3 switch with show vlan command


So the correct answer is D – The VLANs Servers, Management, Production and no-where will be removed from existing switches

Please notice that in the real CCNA exam you may see a different configuration revision of Sw-Ac3 or of SwX. In general, which switch has a higher revision number it will become the updater and other switches will overwrite their current databases with the new information received from the updater (provided that they are on the same domain and that switch is not in transparent mode). In particular, if the revision number of SwX is lower than that of Sw-Ac3, the answer should be “C – The VLANs Servers, Management, Production and no-where will replace the VLANs on SwX”.

Also, some recent comments have said that the new switch’s VTP Operating Mode is Server but the answer is still the same.

Note: If a switch is in client mode and has a higher Revision number, it can still update other Server switches (with lower Revision numbers).

Question 8


First we check to see which ports the source mac-address and the destination mac-address belong to by using show mac address-table command


We notice that the source mac-address 0010.5a0c.fd86 is listed in the table and it belongs to Vlan 33 but we can’t find the destination mac-address 000a.8a47.e612 in this table. In this case, the switch will flood to all ports of Vlan 33 and flood to all the trunk links, except the port it received this frame (port Fa0/6). Therefore from the output above, we can figure out it will flood this frame to Fa0/1, Fa0/3 and Fa0/12.

Please notice that the “show mac-address-table” command just lists information that was learned by the switch, it means that there can be other ports besides Fa0/1, Fa0/3 and Fa0/12 belong to Vlan 33. You can use the show vlan command to see which ports belong to vlan 33


And we found other ports which belong to vlan 33, they are Fa0/2, Fa0/5 and Fa0/7. Our switch will flood the frame to these ports, too.

And we can check which trunk ports will receive this frame by the show interface trunk command


-> Port Fa0/9 will also receive this frame!

Note: Some reports said there is another version of this question. A reader on 9tut commented:

Another question on the VTP SIM was” What will be the destination MAC address of a packet with Source IP address and destination IP address 192.0.2.X (doesn’t really matter what will be the Dest. IP address, since it will be sent to the router).
The answer is simple:
Since the source IP address belongs to VLAN 44, the default gw of the sender is the Router’s Subinterface, and this is where the packet will be sent. Thus, you need to perform a ‘show cdp nei’ on the Sw-AC3 in order to find the local FastEthernet port where the router is connected. Then execute a “show mac address-table” (this command was functioning) and find the mac address associated with the previous port. This is the answer.

Question 9

Answer and Explanation:

Because the destination address is not on the same subnet with the switch, it will forward the packet to its default gateway. So we have to find out who is the default gateway of this switch by using the show running-config command


From the output, we notice that its default-gateway is In fact, we can easily guess that its default gateway should be a layer 3 device like a router; and in this case, the VLAN-R1 router. To verify our theory, use the show cdp neighbor detail command and focus on the description of VLAN-R1 router


From this output, we can confirm the switch’s default gateway is VLAN-R1 router (with the IP address of And “the interface: FastEthernet0/3” tells us that the switch is connected to VLAN-R1 router through Fa0/3 port (Fa0/3 is the port on the switch).

Finally we just need to use the show mac-address-table command to find out which MAC address is associated with this interface


And we find out the corresponding MAC address is 000a.b7e9.8360. Although there are some entries of port Fa0/3 with different VLANs but they have the same MAC address.

Comment pages
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  1. Anonymous
    June 5th, 2017

    questions on vtp sim

  2. Anonymous
    June 8th, 2017

    Where are the questions ?

  3. Gerard
    June 20th, 2017

    Thanks 9tut. But why would you post answers without questions? Really??

  4. 9tut
    June 20th, 2017
  5. Anonymous
    July 21st, 2017

    Please help
    What is “ACL LAB MOD 3 ”
    I just can’t find it
    Plz help my exam is tomorrow

  6. Matt
    August 9th, 2017

    The software appears cogent and intriguing. Wonderful Luck! I’ll be sitting down inside of…


  7. Gabriel
    August 9th, 2017

    Greetings! Extremely instructive assistance in just this exclusive write-up! It’s the small improvements that will create the major variations. Lots of because of for sharing!


  8. Delana
    August 9th, 2017

    Remarkable short article! I very love your exertion!


  9. Horace
    August 9th, 2017

    Exceptionally awesome post. I definitely get pleasure from this internet site. Commence the beneficial get the job done!


  10. Elizebeth
    September 22nd, 2017

    Great activity upon the compose up! I be expecting toward watch read through even further towards yourself!


  11. 1Way
    September 27th, 2017

    Q9. To me this question explanation misleads on how to solve the issue. The ‘ip default-gateway’ on the switch is the switches default gateway for the management VLAN, it is not necessarily the same VLAN as the host port in question. As the question does not state which port the host belongs to you cannot find out which VLAN it is in and therefore it’s subnet and default gateway, which you would then resolve to find. the correct destination MAC address required.

    This explanation makes the assumption that the host is in VLAN 1, the same ands the switches default gateway, the question does not state that.

  12. Cory
    December 6th, 2017

    @Courtney, Did you get this lab? Please, do you have link to 552q dump?

  13. Trying to pass
    December 14th, 2017

    @9tut admin

    thanks for all the work – on the zipped lab noticed following:

    Q2: if i run “Sw-Ac3#sh run | begin trunk” it shows 0/16 as trunk not 0/3, but not showing with sh interface trunk the 0/16 …to be honest, dont know if that is an issue

    Q3: it shows model C2600 instead of C2620

  14. Phillip
    December 18th, 2017

    Passed with the 552q dumps, all questions were from there.

  15. olfa
    January 20th, 2018

    please, can I have the questions of this lab

  16. Raju
    February 27th, 2018

    Hi guys any latest dumps for 200-125

    my exam is in next month.

    this is my email id :- raj09028 at gmail dot com

    thank you

  17. kamal
    April 8th, 2018

    this is the link for questions file:///C:/Users/COMEA/Downloads/CCNAquestions_Mar_2018%20(1).pdf

  18. ASHAD
    April 21st, 2018

    I can’t understand what is the ques. for VTP simulation? plz anyone help.This is not similar like others.

  19. Charice :)
    April 23rd, 2018

    the explanation is really helpful

  20. Anonymous
    May 24th, 2018

    Can you please post unzipe VTP file and post it again. I can’t open the VTP file please someone help

  21. Remi
    May 28th, 2018

    This is absolutely fantastic. QED

  22. Abdisalan
    May 30th, 2018

    how often has this come up in the exam

  23. Dany1
    June 5th, 2018

    Explanation:”If in the exam you find that “Configuration last modified by” then “” here indicates it does not receive VLAN information from anyone -> Sw-Ac3 is also the local updater. Therefore the answer in this case is Sw-Ac3.” is TRUE, except only one tinny scenario: when switches do not have IP management address. In that case, SW-Ac3 cand be VTP Server or VTP client, the message is the same “Configuration last modified by”. (test and play on GNS3 for verification). When all switches have IP addres on the same management VLAN (that i test on GNS3), those messages appear:
    – on vtp client
    “Configuration last modified by x.x.x.x”- who send the last modification
    “Local updater ID is x.x.x.x on interface Vlyy (lowest numbered VLAN interface found)”- ip address of VTP Server Switch who is now in “charge”
    on vtp server can be the same, depend of sequence of vtp events

  24. Brhn
    June 11th, 2018

    Wow, Good please send me the new dump at simeberhanu at gmail.com ,
    my exam is the next week.


  25. albama
    June 15th, 2018

    in the question 9 , paquet tracert http://congressreiki.ranm.org/?all=download/9tut.com_CCNA_vtp_sim.zip
    not show ip default gw ….not configuration defautl gw in this sim ?


  26. awab
    June 19th, 2018

    @9tut question 7: if the two switches have not the same domain name .. what will happen??

  27. seener
    June 24th, 2018

    @awab their vlan database will not change

  28. Ritesh
    July 3rd, 2018

    In the 9th question, the default gateway config on the switch won’t come in to use if the host has to send some data. the default gateway config on the host will be used. Only when some data originates from the switch, like in telnet, will the default gateway configured on the switch will be used.

  29. ASHAD
    July 12th, 2018

    Can Anyone tell me Is this Simulation comes in Dumps or Not? Bcz I don’t wanna read this simulation.


  30. SimSim
    July 19th, 2018

    Question 9 :
    The answer should be the mac address of the router because al sub-interfaces uses the same mac address of physical interface (so no relation with the ip default gateway configured on the switch).
    A host who has to send a packet out of his subnet will use his default gateway ( in this cas a sub-interface).
    Sorry for my bad english

  31. Yousif
    August 29th, 2018

    Can someone send me the dumps please E mail >>
    Mohammedmoneer1988 {at} yahoo {dot} com
    Thanks in advance .

  32. JacqEUS the third
    September 6th, 2018

    can anybody please send me THE latest dumps jvanheerden38(at)gmail(dot)com I’m writing the 19th of this month

  33. Erik
    September 16th, 2018

    The “ip default-gateway…” command is missed in Sw-AC3. That’s why I did choose the wrong choice at Question 9.

  34. Tommy182
    September 23rd, 2018

    Q9 answer and explanation doesn`t make sense to question.
    Answer should be 0009.e8b2.c28c.

    We need to determine root port which is fa0/12(for case 2 SW root itself)
    We need to find out what mac address we can see behind this port.
    We determine that there is one address that the same for all vlans behind this root port.
    It is 0009.e8b2.c28c

    Address 000a.b7e9.8360 will make sense only if we talking about traffic originated by SW itself, not by host behind it.

    But it confuse me, cause everywhere I see the the answer is 000a.b7e9.8360 …..

  35. Rami
    September 24th, 2018

    Could you please send me the latest CCNA exam questions , D&D and sim labs
    I will really appreciate your help and support.
    please send it to : rami.idris AT Gmail dot com
    I am writing the exam next week

  36. youp
    September 28th, 2018

    I downloaded the File and I think there is a missconfiguration for the exercise 8 :(

  37. youp
    September 28th, 2018

    Either the Swc-3 in the Q9 doesn´t have any default gateway defined, so it´s not possible to find the right answer

  38. BcS
    October 4th, 2018

    as per the question in Question 9, the host needs to communicate to a machine residing in another subnet, but the explanation provided seems to denote that the switch is communicating.
    However in both the cases, the answer seems to be the same, please do cross check it.

  39. Almarez
    October 5th, 2018

    No ip default gateway on the switch but since its on a different subnet… different broadcast domain… It will go to the switch’s default vlan which was set as 1. So 3rd octet must be 1 (only assumption).

  40. k.z.z
    December 14th, 2018

    please send me the latest dumps at k.z.z-1111(at)hotmail(dot)com .. I have exam tomorrow >>pleeeeeeeeeease

  41. J.J
    January 10th, 2019

    Question and answer does not match with sim 90% of the time. But the method to find the answer is still valid.
    Especially the last question where Sw-Ac3 is missing default gateway configured. (I don’t think CPT let you set default gateway on its simulated switch anyway.)

  42. Lauren
    January 25th, 2019

    Hello 9tut community,
    Question1: I think “show interfaces” command is another way to get the MAC address, can you please confirm ? and if not, why ?
    Thank you !

  43. David
    February 18th, 2019

    Alguém, pode me enviar as questões ? sennacard17 pelo gmail

    February 19th, 2019

    does anyone has last of VCE exam simulation setup with crack ???? could you send me mail please..

    halilalban at outlook dat com

  45. bill
    February 28th, 2019

    @Lauren, the show interfaces command does give you mac address info, but its annoying as it gives you tonnes of info about all interfaces on the router/switch.

  46. Glenn
    March 18th, 2019

    doe anyone knows if this sim is still in the exam?

  47. bill
    April 18th, 2019

    @Glenn, i think i saw something like this in my ICND1 exam. attempted 1 question, found it annoying so skipped it lol.

  48. david
    May 3rd, 2019

    1. what interface did Sw-Ac3 associate with source MAC address 0010.5a0c.ffba?
    2. what ports on Sw-AC3 are operating has trunks ?
    3. what kind of router is VLAN-R1?
    4. which switch is the root bridge for vlan 1?
    5. what address should be configured as the default-gateway for host conected
    to interface fa0/4 of SW-AC3?
    6. from which switch did SW-AC3 receive VLAN information?
    7. SwX was taken out of the production network for maintenance. it will
    reconnected to the fa0/16 port of Sw-Ac3. what happens to the network when it is
    reconnected and a trunk exists between the two switches?
    8. out of which ports will a frame be forwarded that has source mac-addess
    0010.5a0c.fd86 and destination mac-address 000a.8a47.e612?
    9. if one of the host connected to Sw-AC3 wants to send something for the ip [or any ip that is not on the same subnet] what will be the destination
    MAC address?

  49. Pattrick
    May 13th, 2019

    @david: you can reach me for lasted dump at: network4career(at)gmail(dot)com

  50. garv
    May 21st, 2019

    @9tut, Q9- If one of the host connected to Sw-AC3 wants to send something for the ip (or any ip that is not on the same subnet) what will be the destination MAC address?

    Answer is port’s MAC-address. The explanation is quite confusing though!

    It is being assumed that switch will forward the address to its default gateway because the subnet is different. But the thing is that Switches by their very nature have nothing to do with Layer 3 Addressing. Infact,Switches only forward the frames based on their MAC-ADDRESS. The question says that a Host is sending a packet to a host on a different subnet, then why does the switch is being assumed to be taking Layer 3 decision by sending packets to its Default-Gateway. Moreover, traffic is not originating from the Switch itself (as in the case of TELNET etc.)

    The Explanation should be that the Switch would forward the frame to the Port which is associated with the Default-Gateway of the host’s VLAN. In the above answer it is being said that the Hosts in any VLAN(1,22,33,44) would forward the packets to the address This means that hosts in different VLAN with different default-gateways would all use only one Default-Gateway IP ie.,which is wrong!. The Default-Gateway of all the VLANs is physically the same but logically(IP address) different. So the destination MAC-ADDRESS of all the hosts would remain the same but their logical Default-Gateways ie.IP’s would be different as the Router’s port has been Sub-interfaced. The answer above is right but explanation causes confusion!!

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