Identify the four valid IPv6 addresses. (Choose four.)
A.
::
B.
::192:168:0:1
C.
2000::
D.
2001:3452:4952:2837::
E.
2002:c0a8:101::42
F.
2003:dead:beef:4dad:23:46:bb:101
Identify the four valid IPv6 addresses. (Choose four.)
Identify the four valid IPv6 addresses. (Choose four.)
I check using IPv6 validator site and find C and D are valid too. Why are they not chosen?
I think C and D are network address. Not a valid IP address. To make it right, has to be 2000::1, 2001:3452:4952:2837::2 something like that.
how could a person know it?
its very hard,, knowing just even for one ip.. the here times 4
how could a person know it?
its very hard,, knowing just even for one ip.. the here times 4 is much harder.
This is an unclear question when asking :
“Identity the 4 valid IPV6 addresses”.
For example “::” is a valid IPv6 address but we can’t assign it to an interface.
Other five addresses are correct!
It is weird when the question asks us to choose only 4 addresses
Below is a quick summary about IPv6:
0:0:0:0:0:0:0:0 (or :: ) equivalent of 0.0.0.0 in IPv4
0:0:0:0:0:0:0:1 (or::1) loopback, equivalent of 127.0.0.1 in IPv4
2000::/3 Globally unique addresses
FC00::/7 Unique local unicast
FE80::/10 Link-local unicast
FF00::/8 multicast addresses
2002::/16 for transmitting IPv6 over IPv4 network
I was very surprised on my cisco exams to see that there are some questions like this one that have a bug.
They are not tricky …It’s just a bug 🙂
The last 64 bits can not be all zero for a valid ipv6 address.
except ::