Wednesday, July 31, 2013

Hi Bulldogs!

Here's another new CCNA practice exam for you -- and with just 61 days left until the Sept. 30 deadline, we can use all the practice we can get!  :)  

Let's hit it, and thanks for dropping by the Bulldog Blog today!

Question 1:

Which OSPF network types will result in a dash appearing in show ip ospf neighbor where you'd usually expect to see "DR" or "BDR"?

A.   Broadcast


C.   point-to-point

D.   None of them

Question 2:    

You have sequence number 10, 20, and 30 in an ACL. You remove line 20.  As a result, what will the number of line 30 change to?

A.  20

B.  25

C.  15

D.  It won't change.

Question 3:

Of "access-list" and "ip access-list", which allows you to use sequence numbers in order to edit the line order of an ACL?

A.  "access-list" only

B.  "ip access-list" only

C.   Both of these commands will allow it.

D.  Neither of these commands will allow that.

Question 4:

Give one practical reason for writing an explicit "deny any" as the last line of an ACL, as opposed to relying on the implicit "deny any".

Question 5:

You're editing the lines in an ACL.   What single command will remove line 30 from an existing ACL?

Answers right after this quick, important message!

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OSPF Quick Quiz answers:

1.  (C).   An OSPF point-to-point network will not elect a DR or BDR.  We don't need either for a link that'll literally have two hosts to begin with.

2.   (D).  The existing sequence numbers in your ACL will not change.

3.  (B).  You do need to use "ip access-list" to edit a numbered ACL via the sequence numbers.

4.   You could write the explicit deny with log at the end in order to log the number of packets denied by that line.

5.  The simple line "no 30" will remove that line.  I'll post a free video on my YouTube CCNA Video Training Channel soon to show you how this works.

Be sure to check out the free practice exam in the next blog post!

Chris B.

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