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
If you have the latest dump please send it to ssmm49@hotmail.com
more question please on ipv6 that will help most of us because it seems most of the site user have problems with ipv6
These days ipv6 questions are asked more ive heard. Where else can we get a set of such questions??
Hi Layer13
I check 2004:1:25A4:886F::1 is valid.
I check it with http://www.intermapper.com/ipv6validator
Q7, 2000:: is actually valid, but agree it’s confusing. Better with a mask?
https://learningnetwork.cisco.com/thread/34410
Also confirmed valid with the ipv6validator site
I got one other link with testing
https://learningnetwork.cisco.com/thread/25035
2000:: is treated such that while prefix 2000::/3 is right, the host bits are all zero
Question 4
@xallax and the Co. please come to the rescue
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 ??????
originally posted by @pothami
@ropam
the only IPv6 loopback address i know of is ::1
there could be a typo in the question…
check here too: http://www.computernetworkingnotes.com/ipv6-features-concepts-configurations/special-ipv6-to-devices.html
@xallax…thanks for the reply,
=>U mean there is a typo in which qn of the two?
=>and if there is only one loopback address ( i.e ::1 ) then does that mean, the statement on Qn.4 about Ipv6 is not correct:
“C – Every IPV6 interface contains at least one loopback address”
=>from the statement in the quote…an interface can have many loopback addresses, then how is that possible if we only have one loopback interface!
sorry for the typo! i meant…
“=>from the statement in the quote…an interface can have many loopback addresses, then how is that possible if we only have one loopback address in ipv6″
Question 3 is wrong, broadcast were elimited in IPv6, but they were not replaced by multicast. In IPv6, we have unicast, multicast, and the one that was replaced by broadcast, anycast.
Please update.
@victorCCNP: No, anycast is a new concept of IPv6. Broadcast was really replaced by multicast in IPv6.
@9tut, yes you’re right. I misread the question itself. Broadcast were replaced with multicast, and the new concept, anycast was introduced in IPv6.
@9tut, plz tell me the correct answer of Q7 , i will take my exam tommorow , thnx in advance .
@9tut, plz tell me if this Question correct or not & why “F” is True !
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
There is this quesiton about ipv6 multicast address for ripng
Which IPV6 routing protocol uses multicast group FF02::8 to send updates?
A. RlPng
B. OSPFv3
C. IS-IS for IPv6
D. static
Shouldn’t it be FF02:9 for RIPng?
@shawn,
Which IPV6 routing protocol uses multicast group FF02::8 to send updates?
A. RlPng
B. OSPFv3
C. IS-IS for IPv6
D. static
Answer: C is correct
cause RlPng—> FF02::9
IS-IS—-> FF02::8
xallax can you thep me with this Question:
Which of these represents an IPv6 link-local address?
A- FE08::280e:611:a:f14f:3d69
B- FE81::280f:512b:e14f:3d69
C- FE80::380e:611a:e14f:3d69
D- FEFE:0345:5f1b::e14d:3d69
I think the correct answer is C but I found in some dumps they choose B,C
@smart86
link-local addresses always start at fe80::/10
each hex number takes 4 bits to represent
fe80 is
1111 – F
1110 – E
1000 – 8
0000 – 0
FE80 = 1111 1110 1000 0000
the mask is /10 so the first 10 bits are invariable
9th bit is always 1, 10th bit is always 0, that makes the maximum value for the first group of hex numbers in binary: 1111 1110 1011 1111, or FEBF in hex
the entire range would be… FE80:: to FEBF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
that’s a HUGE space. nothing new tho as this is ipv6 we’re talking about.
this means option B could be valid too. and it is
some reference:
http://en.wikipedia.org/wiki/Reserved_IP_addresses
http://en.wikipedia.org/wiki/Link-local_address
Q7 is on ICND2 exam today. And is it updated? Last time I check choose four instead of choose all that apply. The exam still asks to choose four, but I still believe all are correct. Whatever, I passed anyway.
Hi guys please send me latest IPv6 dumps on sarolkar.varun@gmail.com
Hi guys can any send me the latest dumps at magednasr@gmail.com pls
DID IT!!…907…thx 9tut!!!!..CCNA certified….tons of questions from this site…read from top to bottom every question, because you will not know what pops up…q6 and 7 on exam…study concept…good luck to all…can’t stress enough…read EVERY question on this site…
hi 9 tut i have a question,why you didn’t put ipv6 questions in 9tut.net for icnd2 part???
@Anonymous: Yes, I am missing that part. Will add it soon. In the mean time, please read the IPv6 part on 9tut.com.
Q4
Answer C is answered officially by Cisco:
http://www.cisco.com/en/US/technologies/tk648/tk872/technologies_white_paper0900aecd8026003d.pdf
“Every IPv6-enabled interface must contain at least one loopback and one link-local address”
@xallax
in ipv6 u said 9th bit is always 1 n 10th it is always 0……y so?
and is this valid for every ipv6 field or jist for first field of ipv6 addrs…..???
plz help………..tnxxxxxxxxxxxxx
@anyone
one mor thing, regarding q8, what is meant by “all-router multicast access”.???
@ankushk
it is valid only for that type of ipv6 addresses (link-local)
Q8: it is a special address that is usable only for contacting all routers on the local network segment (the broadcast doesnt reach routers more than 1 hop away from the origin)
can anyone explain that unique local and site local addresses are the same or different ?
The answer of question no. 3 is shown as….
B – Broadcasts have been eliminated and replaced with multicasts.
But is it correct? I knew broadcasts have been replaced with anycast, not multicast. Multicast still exists in IPv6.
Q4 answer C : atleast 1 loopback address
Q6 answer D : 1 loopback address only
There is a conflict of definition here; both are marked as correct!
Why is Q4 A is incorrect?
@Tathagata
you are correct. but putting it in perspective, unicast is a new concept in IPV6. In the original IPV6 (unicast has not been introduced at the time; about the late 90′s), by then Broadcast was replaced by Multicast “but” then in turn replaced by unicast.
my suggestion, if the choices include the unicast, choose it. but with respect to the question and the choices given, broadcast is correct.
bench October 11th, 2012
@Tathagata
you are correct. but putting it in perspective, anycast is a new concept in IPV6. In the original IPV6 (anycast has not been introduced at the time; about the late 90′s), by then Broadcast was replaced by Multicast “but” then in turn replaced by anycast.
my suggestion, if the choices include the anycast, choose it. but with respect to the question and the choices given, multicast is correct.
how to change ipv4 into ipv6
in Cisco packet tracer????
please tell me if this are valid ipv6 addresses and why or why not…
2002:7654:A1AD:61:81AF:CCC1
2004:1:25A4:886F::1
my answer will be both are valid but i want to be proven wrong if i am missing something
never mind the questions above, got it.
why select FF02::2 in question 8 ?
@philip,
i think that first is not correct, et the second is correct because the format of a IPv6 address is X:X:X:X:X:X:X:X where X is a 16-bit hexadecimal field
@phillip
the first address is not a valid IPv6 address since it is only compose of 96 bits, not unless of course it is a typo whereinyou forgot to include the double colon representing a series of zeros.
the second address however is a valid address (double colon represents 5th to 6th field compose of all zeros)
anyone here can send the latest dumps on ipv6
jim.tagadan@yahoo.com
ill eat the short this time
has anyone got the question in icnd2?
failed ICND2 today with a 790 questions 6,7,and 8 are exact and were included in my test today the frame relay hotspot was there also
2000::/3 Yes this is an IPv6 address but the question states “valid” so this 9tut is right that its not valid… just like in ipv4 192.168.1.255/24 is a ipv4 address but its not valid to use cause its BA..
just to clear it up
hope I helped
Hi, can anyone please send me the latest dumps fuggz37@gmail.com
Please send me latest CCNA dumps gangrel.tusk@gmail.com
Question 7: 2000:: is correct if you use the correct prefix, for me all answers are correct and it should be provided the prefix to make this question more accurate.
dltec(config-if)#ipv6 address 2000::/64
%FastEthernet0/0: Warning: 2000::/64 is a Subnet Router Anycast
dltec(config-if)#do sho ipv6 int bri
FastEthernet0/0 [up/up]
FE80::21E:13FF:FE0B:1AEE
2000::
FastEthernet0/1 [administratively down/down]
unassigned
Serial0/1/0 [administratively down/down]
unassigned
Serial0/1/1 [administratively down/down]
unassigned
dltec(config-if)#