Posted by: Richard @ | July 16, 2008

Week 27 Summary

Week 27 à “How have I managed to create >400 questions for a routing protocol I have seen described as “SIMPLE” in the past!?”

Week’s Study Time:

Study Hours = 14 inc.
Lab Hours = 0

Total study time so far:
Total Study Hours = 321  inc.
Total Lab Hours = 20.5

What I have studied during the last 2 weeks:

Recent test scores:
Numerous Boson ExSim tests….

I’ve made some big strides towards getting my workbook to a point where I can use it as a ‘learning-tool’.  OSPF is now finished
à just 400+ questions later!  A small number of the questions are simply statements copied from my notes and “is” has been changed to the option “{is | is not”} à they won’t ever be challenging questions but they will make sure I think about the specific point.  I’m planning to work through BGP over the next few nights, and then take the time to work through the workbook time-after-time….  I think it’s important I pause after the core switching and routing questions I have put-together to make sure I know the theory inside out (especially for my upcoming written exam).


Here are some great links I have come-across within the Cisco ‘blogosphere’:
1) Notes from the Routing TCP/IP books taken by a very talented individual that goes by the name of Stretch (@ Packetlife)
2) Another one from Packetlife
àVisualizing Tunnels
3) Ever heard “We’d better hard-code speed and duplex”
à Greg Ferro @ EtherealMind has sparked a debate following his article….
4) A new venture by Arden Packeer to serve the CCIE online community
à CCIE Magazine
5) Internetwork Expert’s NEW Online Community
6) A new feature introduced in 12.4(20)T explained here
à IOS Packet Capture!


If I can find the time, I plan to put-together a “Route Filtering Options” diagram for all of the routing protocols on the R&S blueprint(s) during the next couple of weeks.  The idea being that it will complement the “Summarisation” and “Default Routes” diagrams I have previously posted.


Here are a few sample questions from my workbook, why not test yourself?

1) On a NBMA network, if the neighbour State is “Down”, the hello interval is the same as the {“name”}
1a) What is the default value of the ‘interval’ above?

2a) MTU mismatch (router to switch) à Configuration option 1 (on the switch)
2b) MTU mismatch (router to switch)
à Configuration option 2 (on the switch)
2c) MTU mismatch (router to switch)
à Configuration option 3

3a) Which neighbor keywords can be used to stop LSAs from being sent out of a point-to-multipoint interface yet still allow adjacencies to form on it?
3b) Which interface-level command can be used to stop LSAs from being sent out of all other interface types yet still allow adjacencies to form?

4a) Secondary IP network advertisement {does | does not} rely on the advertisement of an interface’s primary IP network
4b) Adjacencies {can | cannot} be formed over/using secondary IP networks (addresses)

Scroll down for my answers (correct or not)……..














1) PollInterval
1a) 120 seconds

2a) system mtu 1500
2b) system mtu routing 1504
2c) ip ospf mtu-ignore

3a) database-filter all out
3b) ip ospf database-filter all out

4a) does
4b) cannot

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