CCNA Flash Card Practice Exam
The OSPF, Part III
Time for some more OSPF! Let's get right to it!
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1. What's the difference between the administrative distance of an internal OSPF route and an external OSPF route?
2. What is the default OSPF code of a route that is learned by OSPF via route redistribution?
3. What command allows an OSPF router to advertise a default route that it does not actually have in its routing table?
4. Which of the following terms describes OSPF?
supports VLSM
is a hybrid protocol
supports neighbor authentication
suitable for multivendor networks
Answers right after this brief, important message!
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And now -- the answers!
1. There is no difference between the AD of an internal or external route in OSPF - it's always 110 by default.
It's EIGRP that has a different AD for internal and external routes (90 and 170, respectively).
2. The default code for a route learned by OSPF via route redistribution is "O E2".
3. The command default-information originate always allows an OSPF router to advertise a default route even when one is not present in the routing table.
4. OSPF supports VLSM, is suitable for use in multivendor networks, and supports neighbor authentication. It's EIGRP that is considered a hybrid protocol, not OSPF.
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(I'll even throw in my CCNA Study Guide ebook!)
"You are the reason I'm a CCNA today!" - Paul Laudenslager
To Your Success,
Chris Bryant
CCIE #12933
"The Computer Certification Bulldog"
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