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Congratulations on completing another skill.
Now it's time for a review in the form of a quiz.
So let's go ahead and jump in with our first question.
Which of the following statements
is true regarding the default behavior of communities
on IOS XE routers?
So let's just go down our list.
Number 1 says, sent but not received.
Well, if you remember when we were
going through our demonstration, we
had to actually configure IOS XE to send communities.
So, 1 is definitely an incorrect answer.
Number 2, neither sent nor received.
This one's a little bit interesting,
because they actually are received.
We didn't discuss that specifically.
However, the fact that we had to configure
them to be sent but not received, hopefully
gave you a hint there.
So, 2 is also incorrect because they are received--
which of course, leads us to 3 being correct.
Because we just said they are received, but they're not sent.
Of course, 4 would have to be incorrect if 3 is correct.
So that means our correct answer to this question is number 3.
Next question.
If an IOS router receives an update
without the MED attribute set, what is the default behavior?
So of course, the key to this is we're receiving the update
without the MED attribute.
And without the MED attribute, the Cisco IOS
considers that to be a 0.
And unfortunately, that means that we're going
to treat it as the best value.
Now, that of course would make 2 incorrect.
It's not going to be treated as the worst value.
However, keep in mind, we can enable MED missing as worst.
In that case, 2 would become correct,
and 1 would not be correct, of course.
However, the thing is, this question specifically
said the default behavior without enabling any features.
Now, of course, 3 is incorrect-- set it
to the default value of 100.
The default value of 100 is actually
the default value for local preference, not for MED.
Finally, of course, answer 4, to ignore it, also not correct.
Although, honestly, that might actually be a better choice.
But as it is, the correct answer to this question is number 1.
So that concludes this quiz.
If you find that you are missing any of the information
to answer these questions, I would
encourage you to go back and review the sources referenced
on each question.
Otherwise, congratulations on completing Implementing Inbound
BGP Path Selection.
I hope this has been informative for you,
and I'd like to thank you for viewing.