Home > ICND2 – InterVLAN Routing

ICND2 – InterVLAN Routing

May 3rd, 2015 in ICND2 200-101 Go to comments

If you are not sure about InterVLAN routing, please read my InterVLAN Routing Tutorial (Premium Tutorial)

Question 1

Question 2


The two answers B and E list all the commands needed to configure interVLAN routing. Please notice that Cisco switch 2950, 2960 only support dot1Q trunking so we don’t need to specify which trunking encapsulation to use in this case. For Cisco switches 3550 or above we have to use these commands instead:

Switch3550(config-if)#switchport trunk encapsulation dot1q
Switch3550(config-if)#switchport mode trunk

Question 3


By default, all ports on a new switch belong to VLAN 1 (default & native VLAN). There are also some well-known VLANs (for example: VLAN 1002 for fddi-default; VLAN 1003 for token-ring…) configured by default -> A is not correct.

To communicate between two different VLANs we need to use a Layer 3 device like router or Layer 3 switch -> B is correct.

VLANs don’t affect the number of collision domains, they are the same -> C is not correct. Typically, VLANs increase the number of broadcast domains.
We must use a different network (or sub-network) for each VLAN. For example we can use for VLAN 1, for VLAN 2 -> D is correct.

A switch maintains a separate bridging table for each VLAN so that it can send frame to ports on the same VLAN only. For example, if a PC in VLAN 2 sends a frame then the switch look-ups its bridging table and only sends frame out of its ports which belong to VLAN 2 (it also sends this frame on trunk ports) -> E is correct.

We can use multiple switches to expand VLAN -> F is not correct.

Question 4

Comments (35) Comments
  1. Ali
    November 12th, 2013

    In Q2, don’t we need to specify the allowed VLANs to pass through fa0/1 ?

  2. Marc
    November 12th, 2013

    Ali, as per my understanding, by default all VLANS are allowed to cross a trunk link. So, no need to specify which VLANs are allowed.

  3. Ali
    November 13th, 2013

    So the “allowed vlan” means that only the specified vlans are trunked…

    Thanks Marc

  4. Joe
    December 24th, 2013

    Question 1, answer B: “routed” should be “router1”

  5. Abdul Nawaz
    February 7th, 2014

    By default, all vlans traffic is allowed on trunk link so we don’t have to specify the vlan. However if you want, you can block vlans on trunk link by configuration.

    Hope it helps.

  6. mike
    April 14th, 2014

    Took ICND2 earlier today, 986 / 1000.

    Questions 1 and 2 from this page were on there.

  7. fez
    May 8th, 2014

    1,4 were there

    Passed today 1000. Got different configuration of the Eigrp & frame Relay labs where there were different DLCIs and IP addresses, but same process was used to get answers (show commands, show ip protocols, show ip interface brief ).

    A question about GLBP and a question about netflow were on my test. You can find them here: http://www.examtut.com/2013/09/new-questions-in-ccna-200-120-hsrp-vrrp.html

    Study 9tut and this guy i found him really helpful. He has unique way of teaching http://www.danscourses.com If you can do all his videos again and again. Trust me you will get the concept. Also one thing i learned today is if you don’t know the concept it’ll be hard for you in the exam.

    All the best to every one in their path. Keep me in your good wishes.

  8. Kumar
    May 20th, 2014

    Please gays answers me, I will have a Netriders competition tomorrow, does this site had the same questions?

  9. izzarazzu
    June 27th, 2014

    Took the exam today. Pass 986/1000. Q1, Q2 were on there.
    Thanks 9tut.

  10. raghu
    June 29th, 2014

    took exam today and passed . All the four Questions were there. thanks 9tut.

  11. 123456
    July 8th, 2014


  12. Tark
    August 1st, 2014

    Isnt InterVLAN routing (Router on a stick) on ICND1? Its listed in the sylabus on the cisco website?

  13. Ant
    August 20th, 2014

    Tested today, 8/20. #4 was on there.

  14. Georges
    September 27th, 2014

    took the exam today and pass with 907. Question 3 and 4 were on there, the others weren’t. location United States Florida.

    test ICND 2

    Thanks 9tut

  15. N8
    September 30th, 2014

    Took ICND2 today 986/100. All of these were on there. Question 2’s answer was combined into one answer. Thanks 9TUT

  16. Jp
    December 21st, 2014

    Q1 on my exam today

  17. ping
    January 25th, 2015

    can some one tell me where I can get a vce player for free?

  18. Marco
    May 11th, 2015

    No explanations for Q4?

  19. John
    May 11th, 2015


    No further commands would be needed for the routing between the sub interfaces once they have been configured as the network would see them all as directly connected

    meaning they would automatically show in the routing table with a AD of 0

  20. Marco
    May 13th, 2015

    I got Q3 and Q4 today in the ICND2 exam.
    Thanks 9tut.

  21. Marco
    May 13th, 2015

    I just read your answer. Yeah, that’s what I thought. I had exactly this question (Q4) in my exam, this morning 😀
    Thank you.

  22. ttn
    May 16th, 2015

    Q4 today ICND

  23. Grisha82
    June 22nd, 2015

    Got 1,2 and 4 today.

  24. anon
    June 22nd, 2015

    For anyone trying to re-create Q4 in GNS3 and using routers as hosts, dont forget to disable ip routing on the router/host and assign default gateway or you wont be able to route between vlans.

  25. Anonymous
    June 26th, 2015

    get dumps with nuggets free from this following link
    wurl. cc/dumps

  26. Anne Normous
    July 1st, 2015

    Just took the test today – 980/1000 Questions 1 and 2 were from this page. Thanks 9tuts! Also got Frame Relay, EIGRP and OSPF labs- a lot of OSPF & quite a few EIGRP questions!

    THERE IS NO NEED FOR ANY DUMPS – just study one book (Wendel or Todd) and the you tube lessons available free for visual knowledge. Along with 9tuts these are enough for 900 and over marks with ease.

    But you MUST understand the concepts and not mug up the answer as they change the options and answers

  27. wjoleson
    July 10th, 2015

    I am trying to look at the ICND2 questions with explanations but they are not there this morning. Is anyone else having the same issue?

  28. Jim
    July 10th, 2015

    @wjoleson yes same problem here

  29. penis
    July 12th, 2015

    what’s going on with the website…?

  30. 9tut
    July 13th, 2015

    @all: We had to move all the questions and answers out of 9tut. We can only keep the explanation. You can download the questions and answers at: https://mega.co.nz/#!oIdESYbD!yyu33vygrfKPy4rcmcbV6qW2fxINNoTokuDM3CjA_og

  31. penis
    July 14th, 2015

    @9tut why? did someone report this website to cisco?

  32. phonethihakyaw
    August 8th, 2015

    i think their webserver is down or hacked.i can’t see any questions

  33. pdaviden
    October 10th, 2015

    Hi all,

    where I can find questions?

  34. Inder
    November 17th, 2015

    Please fix the link to the InterVLAN Routing Tutorial

  35. Myself
    December 24th, 2015

    Q2: When STP is running in a network with loops, ports will transition into the forwarding state or the blocking state.
    Here decisive factor is the cost to reach the root bridge, the port with the higher cost is in the blocking state,
    while the port with the lower cost is in the forwarding state.