[AUDIO LOGO]
Congratulations on completing another skill.
Now it's time for a review in the form of a quiz.
Let's jump in with our first question.
What is the purpose of the type 8 LSA?
Now, this being an open-ended question,
there would be a couple of ways you
can word this, but the way I worded it is that they're used
for the routers to exchange information
about the links that are directly
connected to neighbors, and this includes
the link-local address.
Remember that these are locally significant
and therefore, they'll actually be
different on each router in the OSPF area.
Next question, what is the purpose of the type 9 LSA?
Again, this is open-ended, but we're
going to say that it's used for the routers
to exchange the prefixes that are available on each router
ID.
We use these type 9s in conjunction with the topology
that we learned from the type 1 and type 2 LSAs,
and use that to complete the topology,
and therefore, populate our routing tables.
Next question, which multicast groups are used by OSPFv3?
So we can see by looking at each of these answers, all
of them are FF02, which are the link local multicast.
So this is really just going to be about the last digit.
And if you remember, OSPF version 2
and the IPv6 addresses, they end in 5 and 6.
Therefore, the correct answers here
are going to be 2 and 4 with those
being the multicast addresses used by OSPF version 3.
Final question, what method is used for OSPFv3 authentication?
So this one is simply a matter of remembering
that OSPFv3 actually uses IPsec for its authentication.
Most of these other answers are simply made up.
SHA254 isn't even a thing, it's SHA256.
So again, the rest of these are pretty much made up.
Our answer is number 3.
So that concludes this quiz.
If you find you were missing any of the information needed
to answer these questions, I would
encourage you to review the videos referenced
in the sources on each question.
Otherwise, congratulations on Completing OSPF version 3.
I hope this has been informative for you,
and I'd like to thank you for viewing.