CCNA – IPv6 Questions
Here you will find answer to CCNA – IPv6 questions
If you are not sure about IPv6, please read my IPv6 tutorial
Question 1
As a CCNA candidate, you must have a firm understanding of the IPv6 address structure. Refer to IPv6 address, could you tell me how many bits are included in each filed?
A – 24
B – 4
C – 3
D – 16
Answer: D
Explanation:
The format of a IPv6 address is X:X:X:X:X:X:X:X where X is a 16-bit hexadecimal field. For example: 110A:0192:190F:0000:0000:082C:875A:132c
Question 2
In practical IPv6 application, a technology encapsulates IPv6 packets inside IPv4 packets, this technology is called what?
A – tunneling
B – hashing
C – routing
D – NAT
Answer: A
Question 3
Internet Protocol version 6 (IPv6) is the next-generation Internet Protocol version designated as the successor to IPv4 because IPv4 address space is being exhausted. Which one of the following descriptions about IPv6 is correct?
A – Addresses are not hierarchical and are assigned at random.
B – Broadcasts have been eliminated and replaced with multicasts.
C – There are 2.7 billion available addresses.
D – An interface can only be configured with one IPv6 address.
Answer: B
Question 4
Which two of these statements are true of IPv6 address representation? (Choose two)
A – The first 64 bits represent the dynamically created interface ID.
B – A single interface may be assigned multiple IPV6 addresses of any type.
C – Every IPV6 interface contains at least one loopback address.
D – Leading zeros in an IPV6 16 bit hexadecimal field are mandatory.
Answer: B C
Explanation:
Leading zeros in IPv6 are optional do that 05C7 equals 5C7 and 0000 equals 0 -> D is not corect.
Question 5
Which three of the following are IPv6 transition mechanisms? (Choose three)
A – 6to4 tunneling
B – GRE tunneling
C – ISATAP tunneling
D – Teredo tunneling
E – VPN tunneling
F – PPP tunneling
Answer: A C D
Explanation:
Below is a summary of IPv6 transition technologies:
6 to 4 tunneling: This mechanism allows IPv6 sites to communicate with each other over the IPv4 network without explicit tunnel setup. The main advantage of this technology is that it requires no end-node reconfiguration and minimal router configuration but it is not intended as a permanent solution.
ISATAP tunneling (Intra-Site Automatic Tunnel Addressing Protocol): is a mechanism for transmitting IPv6 packets over IPv4 network. The word “automatic” means that once an ISATAP server/router has been set up, only the clients must be configured to connect to it.
Teredo tunneling: This mechanism tunnels IPv6 datagrams within IPv4 UDP datagrams, allowing private IPv4 address and IPv4 NAT traversal to be used.
In fact, GRE tunneling is also a IPv6 transition mechanism but is not mentioned in CCNA so we shouldn’t choose it (there are 4 types of IPv6 transition mechanisms mentioned in CCNA; they are: manual, 6-to-4, Teredo and ISATAP).
Question 6
Which two descriptions are correct about characteristics of IPv6 unicast addressing? (Choose two)
A – Global addresses start with 2000::/3.
B – Link-local addresses start with FF00::/10.
C – Link-local addresses start with FE00:/12.
D – There is only one loopback address and it is ::1.
Answer: A D
Explanation:
Below is the list of common kinds of IPv6 addresses:
| Loopback address | ::1 |
| Link-local address | FE80::/10 |
| Site-local address | FEC0::/10 |
| Global address | 2000::/3 |
| Multicast address | FF00::/8 |
Question 7
Select the valid IPv6 addresses. (Choose all apply)
A – ::192:168:0:1
B – 2002:c0a8:101::42
C – 2003:dead:beef:4dad:23:46:bb:101
D – ::
E – 2000::
F – 2001:3452:4952:2837::
Answer: A B C D F
Explanation:
Answers A B C are correct because A and B are the short form of 0:0:0:0:192:168:0:1 and 2002:c0a8:0101:0:0:0:0:0042 while C are normal IPv6 address.
Answer D is correct because “::” is named the “unspecified” address and is typically used in the source field of a datagram that is sent by a device that seeks to have its IP address configured.
Answer E is not correct because a global-unicast IPv6 address is started with binary 001, denoted as 2000::/3 in IPv6 and it also known as an aggregatable global unicast address.The 2000:: (in particular, 2000::/3) is just a prefix and is not a valid IPv6 address.
The entire global-unicast IPv6 address range is from 2000::/128 to 3FFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF/128, resulting in a total usable space of over 42,535,295,865,117,307,932,921,825,928,971,000,000 addresses, which is only 1/8th of the entire IPv6 address space!
Question 8
What is the Multicast for all-router muticast access ?
A – FF02::4
B – FF02::3
C – FF02::2
D – FF02::1
Answer: C
(New) Question 9
Which IPv6 address used the all-rip-routers multicast group as the destination address for RIP updates?
Answer: FF02::9
thanks for all the help — I remember v6 — then I forget it — this tutorial helps a lot for review
@bunty
thanks for the info have learnt something too.
regards
Nice consolidation of essential IPv6 related questions !
Good job !
Explanation of Question 6 is Wrong :
Site-local address is FC00::/8 = 1111 1100
hi ..why Q7(F) Is correct explain plz
if (::) write in the end of IPV6 add.
hi guys can you send me the latest dumps plz
my email is cabdifatax_12@hotmail.com
thanks.
How often do CCNA exam holds, say, in a week or month upon registration?
thanks 9tut!=D
Thnxxx ….!
I think in Q 7 ..ans 7 is incorrect since ending :: is not allowed ..Let me know if i am wrong ??
I mean option F
Yea… i agree about Q7. F may not be the correct option… could sm1 confirm??
yes F is wrong
Yes F to question 7 is wrong and should not be in the answer, as you must have a 64bit value in the Interface ID field of a global ipv6 address. B is correct as an example.
hi…..may som1 explan q7
thax
@9tut
Question 7:
Answer E is not correct because a global-unicast IPv6 address is started with binary 001, denoted as 2000::/3 in IPv6
I guess you want to say 010 instead of 001 am right?
you are right
it is 001 as it is three bits
Hi all, I am taking CCNA 640-802 exam first time on 30/05/2012. Could anyone please send me latest dumps which are valid for UK? My e-mail address is puneet_gill84@yahoo.co.uk. Many thanks.
hi 9 tut…
yes you are right
what about :: in the end of add. is legal ?
@ENG.Shaymaa: Yes, it is legal.
@Mounir Sahali
1 character in ipv6 has four bits (xxxx)
0000 – 0
0001 – 1
0010 – 2
.
.
.
1111 – F
9tut on mentioned 001 but its actually 0010
2000::/3 = 0010 0000 0000 0000 ::/3
I PASSED CCNA EXAM TODAY THANKS TO ALL MIGHTY ALLAH
960/1000
got some quesiton today in my exam for IPv6
advantage of IPv6 against IPv4(choose 2)
whats the lop back address of IPv6
choose IPv6 addresses
forgot the options
can anyone send me the dumps-mssoldier87@gmail.com- for ICND2 for the US, i take it in like a week, and this website has been the biggest help in the world.
Question 4
Which two of these statements are true of IPv6 address representation? (Choose two)
C – Every IPV6 interface contains at least one loopback address.
Question 6
Which two descriptions are correct about characteristics of IPv6 unicast addressing?
D – There is only one loopback address and it is ::1.
Can anyone explain please ??????
@Muhammad Rashid , Please share your Experience with us about your preparation for Exam…
@xallax: can you please explain to me why do you think question 7, answer F is ok? I dont get it and there are so many comments here about it, Im not sure who to listen…
@mariah
2001:3452:4952:2837:: means 2001:3452:4952:2837:0000:0000:0000:0000
16+16+16+16 bits. as long as the mask isnt /64 or bigger than that it should be assignable
the question says nothing about the subnet mask so it must be /3 and that makes this address perfectly valid on the 200/3 ~ 3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff range.
it’s like it IPv4 but geekier.
take this IPv4 address: 21.22.23.0
i tell you nothing about subnets so you assume the default subnet mask is in use
is it a valid IP address? sure it is on the 21.0.0.0/8 class A network
same goes for the question a hand. the main difference is that it spans from [001 and 125 0s] (200/3) to [001 and 125 1s] (3 and 31 Fs)
many typos… just tired
@xallax: thank you so much for your answer. the logic is simple when i read your comment :)
@xallax: you know its /3? is it because its global unicast?
@mariah
it is a minimum of /3 on this given address space. 2000 to 3fff
you are correct, this is the range for global addresses
if you turn it from hex to bits then it always starts with 001 in the first byte.
those 3 bits will always be the same on that given network.
@xallax: Great, thanks :)
hi guys anyone with the lateset dumps?please email it to me at bolas119@yahoo.com
@ 9TUT
So, what is the final outcome? Is Question #7 incorrect or not?
Please respond.
Thank you.
@9tutfan
it is correct
Which option is a valid IPv6 address?
A.
2001:0000:130F::099a::12a
B.
2002:7654:A1AD:61:81AF:CCC1
C.
FEC0:ABCD:WXYZ:0067::2A4
D.
2004:1:25A4:886F::1
the answer is D Why not A & B?? can anyone explain thanx
The answer isn’t a or b because those are invalid address. A – not to sets of ::, can only truncate one set of 0000s. B – the address is to short, only 6 “octets” (really double octets or chunks). C – invalid hex e.g. there is no WXYZ D – the only answer – you should go study ipv6 and stop studying questions.
I passed my ccna exam today Praise be to God! Thank you Jesus! and thanks to 9TUT for the tutorials and explanations, great site and thanks to xallax for your explanations to questions and thanks to http://www.examcollection.com for the dumps. Pls guys lets donate and help to keep this site up!
48 ques for exams including 3 simulation, I had EIGRP, Acesslist2 and VTP. Make sure the practice the simulation, use packet tracer or gns3. Best wishes to all!
thanx comeonman
it is easy as you explain..i wasn’t consentrated
thanx you
Which statement is right..????
Broadcasts have been eliminated and replaced with multicasts
OR
Broadcasts have been eliminated and replaced with Anycast
i think :Broadcasts have been eliminated and replaced with Anycast
Which IPv6 address is valid?
A.
2031:0:130F::9C0:876A:130B
B.
2001:0DB8:0000:130F:0000:0000:08GC:140B
C.
2001:0DB8:0:130H::87C:140B
D.
2031::130F::9C0:876A:130B
he answer is A Why not B & C?? can anyone explain thanx
@big
valid characters used for addressing are 0-9 and A-F
in option B you have “G”. in option C you have “H”. option D is invalid because there are 2 abbreviations using “::”
@9tut
Question 4
I think there is mistake:
C – Every IPV6 interface contains at least one local(noot loopback) address.
Please check.
Do you need to know the configurations for IPv6 for the icnd2 exam??
example
r1(config)#int f 0/0
r1(config-IF)#IPv6 address
Thanks
@xallax
Do you think they are trying to ask “which are valid IPv6 HOST addresses?” I don’t see how 2000:: is invalid, or just a prefix. The :: at the end tells us to fill in the rest, and 2000:0000:0000:0000:0000:0000:0000:0000 looks valid. It follows the IPv6 format, however it may not work for a host- just like some of our addresses in IPv4. That doesn’t mean it’s an invalid address.
I think that once again the wording in a question is just poor, and I should memorize this question.
I can remember when I did the CCNA exam, I was asked which technologies were used when migrating from IPv4 to IPv6. I can’t remember what the choices were.
Does anyone know what technologies you use? I can’t work this out by searching on Google.
@chris i think Q5 is your question
Dual stack router is to run ipv4 and v6
Hi all,
can anybody tell me why this IPv6 address is NOT correct, please?
2004:1:25A4:886F::1
Thanks