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CCNA – Operation Questions

March 21st, 2015 Go to comments

Question 1


To check the connectivity between a host and a destination (through some networks) we can use both “tracert” and “ping” commands. But the difference between these 2 commands is the “tracert” command can display a list of near-side router interfaces in the path between the source and the destination. The “traceroute” command has the same function of the “tracert” command but it is used on Cisco routers only, not on a PC -> B is correct.

Question 2


The principle here is if the subnet mask makes two IP addresses and in the same subnet then the Network device A does not need to have IP addresses on its interfaces (and we don’t need a Layer 3 device here).

A quick way to find out the correct answers is notice that all 255.255.255.x subnet masks will separate these two IP addresses into two separate subnets so we need a Layer 3 device here and each interface must require an IP address on a unique IP subnet -> A, C are not correct while B, D are correct.

With subnet mask, the increment here is 2 in the third octet -> the first subnet is from to, in which two above IP addresses belong to -> each interface of Network device A does not require an IP address -> E is correct.

Question 3

Question 4

Question 5


For more information about Inverse ARP, please read my Frame Relay tutorial.

Question 6

Question 7


When powered on, the router first checks its hardware via Power-On Self Test (POST). Then it checks the configuration register to identify where to load the IOS image from. In the output above we learn that the Configuration register value is 0×2102 so the router will try to boot the system image from Flash memory first.

But we also see a line “System image file is “tftp://”. Please notice that this line tells us the image file that the device last started. In this case it is from a TFTP server. Therefore we can deduce that the router could not load the IOS image from the flash and the IOS image has been loaded from TFTP server.


If the startup-config file is missing or does not specify a location, it will check the following locations for the IOS image:

+ Flash (the default location)
+ TFTP server
+ ROM (used if no other source is found)

Question 8


The last known good router will try to inform you that the destination cannot be reached (with a Destination Unreachable message type) so from that information you can learn how far your packets can travel to and where the problem is.

Question 9


We convert a 48-bit MAC address (IEEE 802) to a 64-bit value by breaking the MAC address into its two 24-bit halves. The first part is the Organizationally Unique Identifier (OUI) and the next part is the NIC specific part. Then the 16-bit hex value 0xFFFE is inserted between them to create a 64-bit value.


Just for your information, to obtain an IPv6 interface identifier from EUI-64 address, we have to complement the U/L bit (the seventh bit of the first byte and is used to determine whether the address is universally or locally administered). This means if it is a 1, it is set to 0; and if it is a 0, it is set to 1. In the above example, the U/L bit is 0 (from 00 = 0000 0000). Therefore we have to set this bit to 1 to create an IPv6 interface address.

Question 10

Comments (50) Comments
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  1. modest
    February 24th, 2015

    9tut or anybody that how question 10, could u pls explain it to me. thanks in advance

  2. anybody
    February 24th, 2015

    q10 – you have to look at router configuration to deduce what ip address can be used on which vlan and assigned to which host. Since host A is in vlan 10 he can have .79 ip and his default gateway has to be .78. Host B has to have .190 since he is in Vlan 20 and that subnet host’s are from 129-191.

  3. Anonymous
    February 28th, 2015

    Q10 Explanation:

    It’s a “router-on-a-stick” configuration. Which means each host in the VLAN must corresponds with the VLAN configured on the sub-interfaces.
    VLAN 10 is configured on fa0/0.10 and VLAN 20 on fa0/0.20. So each hosts in VLAN 10 must use fa0/0.10 IP address as their default gateway, each hosts must also be in the same subnet as fa0/0.10 IP – same with hosts in VLAN 20.

    So find out the usable IP addresses on each sub-interfaces – for /27: – .94 and for /26: – .190
    Host A (using port 6 – VLAN 10) must use IP, default gateway
    Host B (using port 9 – VLAN 20) must use IP, default gateway

  4. Anonymous
    February 28th, 2015


    For /26 the useable addresses are: – .190

  5. M@x
    March 1st, 2015

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  6. w1zard
    March 2nd, 2015

    Question 3:
    What is a “Cisco VPN solution”
    What kind of “increased security” can be achieved over a VPN that is not achievable on a point-to-point WAN link such as a leased line?
    Does this question appear in tests anymore? or is it a left-over from earlier exams?

  7. bkool
    March 3rd, 2015

    Please 9tut, could you check this issue:
    A. New CCNA – Operation Questions
    Question 10
    Refer to the exhibit:
    A network administrator is adding two new hosts to SwitchA. Which three values could be used for the configuration of these hosts? (Choose three)
    A. host A IP address: **
    B. host A IP address:
    C. host A default gateway:
    D. host B IP address:
    E. host B default gateway:
    F. host B IP address:
    Answer: A C F
    B. Composite Quiz 11
    Question 23, same question:A network administrator is adding two new hosts to SwitchA. Which three values could be used for the configuration of these hosts? (Choose three)
    host A default gateway:
    host B IP address:
    host A IP address: ( Answer different)**
    Thanks to clarify

  8. Mubeen
    March 3rd, 2015

    host A IP address: cannot be correct because Host A is in VLAN 10, and for that (according to exhibit) starting IP is

  9. bkool
    March 4th, 2015

    Thanks Mubeen

  10. Anonymous
    March 5th, 2015

    Host A IP address is not correct because it’s the network address for VLAN 10.

  11. muni
    March 10th, 2015

    Can anyone tell me, does final exam contain only questions and sims that I can find here, or it has an adittional lab simulation, that we have to set up by our own, just like we did after each term on academy.


  12. mikael
    March 17th, 2015

    Question 2, the link test is asking for 3 answers but when we fill 3 answers, the feedback is a fault answer even if we are right…..Link test doesn’t work for this question “Which three statements correctly describe Network Device A? (Choose three)”

  13. Red
    March 17th, 2015

    For Q 10, C and F are correct answers I think.

    The address range is: to

    That means anything from and including to can be assigned to any interface, this including a pc or a default gateway.

  14. Red
    March 17th, 2015

    I meant E and F can be the correct answers.

  15. Apush
    March 18th, 2015

    Passed my CCNA exam today (18th Mar)… Q2 in exam

  16. Peter
    March 26th, 2015


  17. ciscogeek
    April 3rd, 2015

    Red, for Q10, E is incorrect because the default gateway for Host B -> port 9 -> vlan 20 is (as shown in the diagram).

  18. I have an exam
    April 5th, 2015

    Which one is better, Academic exam or Professional exam?

  19. Davy
    April 20th, 2015

    Explenation for question 9 has some missing info:

    When inverting the 7th bit which is 00 = 0000 0000 before we inverted is, and gets 0000 0010 = decimal number 2

    So the new EUI-64 MAC is 02-12-34-FF-FE-56-78-9A instead of 00-12-34-FF-FE-56-78-9A (which was the MAC before inverting the 7th bit)

  20. Nadith
    May 3rd, 2015

    why Q4 B,C,E wrong ..can someone explain plz..??

  21. davesupreme
    May 4th, 2015

    i saw that one too, Davy….

  22. davesupreme
    May 4th, 2015

    answers on Q8 test link wonky? only marked 2 correct
    , supposed to be 3 correct answers?…. no problem, just wondering why?….

  23. Hookah
    May 7th, 2015

    Question 8 still wonky on exam. Why would Router C send a Router Selection message type?

  24. NK
    May 10th, 2015

    Can someone explain Q 6 for me?

    I don’t understand it.

  25. kaka
    May 12th, 2015

    @NK as you can note from the diagram host B is in vlan 2 and host A in Vlan 1 so the ip address and the default gateaway of host b must change to and the ip address to to enable frames to move

  26. Pascal
    May 14th, 2015

    IN Q7, the first 2 bytes should be 02 instead of 00 (inversion of the 7th bit from the original MAC address to become an IPv6 address), no ?

    That’swhat your write but your scheme is then wrong.

  27. joseph
    May 26th, 2015

    can someone please explain e why in question 10, we did not choose answer E, which gives you a fault gateway for host B at If you look at the router configuration, it belongs in the same subnet as the IP address configured for the interface f0/0.20 . In other words, why did they choose a default gateway for host A, over host B?

  28. R
    May 29th, 2015


    Hi! I will try my best to answer based from my understanding.

    For Q10, The default gateway for the host should be the IP address of the router. Hence, default gateway for host A is 192.168.178 while the default gateway for host B is

  29. FayazH
    June 5th, 2015

    Allhumdulillah Passed today Q1 & 3 in Exam – Email me for Dumps at suhamba20022001@yahoo.com

  30. Me
    June 23rd, 2015

    For data collection only: Q9 appeared on my exam questions today. All but one question on exam WAS listed here on 9tut. Got 1000 so answers are good. (labs: ACL and EIGRP – 2 friends before me stated NAT as well.)

    Would also like to note a question I did not see on 9tut. Fairly basic, but worth note. Not verbatim or course, but: How is a private address handled if it is placed on an ISP WAN interface. A: (although strictly not true) Private addresses can not be routed on the public internet backbone (or something to that effect).

    As an aside, I had a good handle on this material coming in. If you don’t know the material already, memorizing the test questions only hurts everyone.

  31. Questions Today
    June 24th, 2015

    Q9 was in exam. Praise The Lord and thnx 9tut passed on 24th june 986/1000.
    Some new questions to be observed:
    What will happen if a private IP address is assigned to a public interface connected to an ISP?
    A. Addresses in a private range will be not be routed on the Internet backbone.
    B. Only the ISP router will have the capability to access the public network.
    C. The NAT process will be used to translate this address to a valid IP address.
    D. A conflict of IP addresses happens, because other public routers can use the same range.
    Answer: A
    What are three values that must be the same within a sequence of packets for Netflow to consider
    them a network flow? (Choose three.)
    A. source IP address
    B. source MAC address
    C. egress interface
    D. ingress interface
    E. destination IP address
    F. IP next-hop
    Answer: A,D,E

  32. Anonymous
    June 26th, 2015

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  33. Anonymous
    June 28th, 2015

    Can anyone explain Q4, why option B (Send entire routing table to all routers in the routing domain.) is wrong ?

  34. 9tut
    July 12th, 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/#!wt9kVCjL!vvp79FTtjsqfpCgq0uTOTKlE6_qsLY6C_m163sNGs_s

  35. 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?

  36. Review
    September 25th, 2015

    Just use them to review questions, don’t assume they will be on the test. They do give a great idea of the question style to expect. I am getting most of them correct, just slipping up on somethings, my biggest mistake is not slowing down and reading the question fully!

    So, use this as a guide, read the books etc.. and slow down and read the question!

  37. meet
    October 1st, 2015

    i think there is a mistake in answer of question no 4…. i think all options are correct A,B,C,D except E…. can anyone help me ?

  38. Vlad
    December 3rd, 2015

    Q10 is very ambiguous, you can use various subnets, can someone please explain, in detail the all the subnets choice for the correct answers.
    why isn’t this subnet a valid answer
    168.1.8/29 vlan 1
    168.1.48/27 vlan 10
    168.1.144/26 vlan 20

    B,C,E ?

  39. Vlad
    December 3rd, 2015

    Sorry ! This subnets
    168.1.8/29 vlan 1
    168.1.48/27 vlan 10
    168.1.80/26 vlan 20

    B,C,E ?

  40. kassof
    February 22nd, 2016

    Hello 9tut team,

    in the explanation of Q7, we can read : “In the output above we learn that the Configuration register value is 0×2102 so the router will try to boot the system image from Flash memory first”

    But int the ccna bbok we can read :

    If boot field = 0, use the ROMMON OS.
    If boot field = 1, load the first IOS file found in flash memory.
    If boot field = (2 – F):
    A. Try each boot system command in the startup-config file, in order, until one works.
    B. If none of the boot system commands work, load the first IOS file found in flash memory.

    boot field = the last hex digit of the register. In our example boot field =2.


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    May 13th, 2016
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    May 28th, 2016

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  43. DoubleA
    July 14th, 2016

    “Can anyone explain Q4, why option B (Send entire routing table to all routers in the routing domain.) is wrong ?”

    The only thing I can think of is that the phrase “all routers in the routing domain” makes it incorrect in the case that it is a RIP network we are talking about and a router in that same routing domain is more than 15 hops away from another advertising router.

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    July 22nd, 2016

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  45. Mon [ Q4 – Explaination]
    August 15th, 2016


    In Distance vector routing protocols, routers send their entire routing table only to their neighbors [not all the routers withing in the routing domain]

  46. nelson
    September 26th, 2016

    Were can I get the Questions? I cannot finde them, only the answer

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    November 16th, 2016

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    January 8th, 2017


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