... and right now, let's get started with today's practice exam!
1. The "feasible distance" of an EIGRP route is the total of which two of the following values?
A. The metric from the ASBR to the destination
B. The metric from the ABR to the destination network
C. The metric from the next-hop router to the destination
D. The metric of the route from the local router to the next-hop router
E. The metric from the local router to the ASBR
F. The admin distance from the local router to the next-hop router
G. The AD from the next-hop router to the ASBR
2. You're seeing only classful network numbers in your routing table when you expect to see subnets.
Which two of the following could cause this behavior?
A. Using RIP v2
B. Using RIP v1
C. Misconfiguring an OSPF virtual link
D. Autosummarization
E. Using EIGRP without the AS numbers
F. A mismatch in EIGRP metric weights
3. For each of the following, identify the protocols that send out full routing updates on a regular basis, and the amount of time that elapses between those updates.
A. EIGRP
B. RIP v1
C. OSPF
D. RIP v2
E. Static routing
4. You hear a lot of great things about link state protocols - so many that you might wonder why you'd ever run anything else.
There are some negatives with link state protocols, though. Which of the following is such a consideration?
A. Hammers the CPU
B. Regularly sends full routing updates, which aren't really necessary in a stable network
C. Autosummarization
D. Lack of VLSM support
5. Here's a question inspired by a recent tweet I received!
You just ran show ip ospf neighbor and notice that your local router is showing two separate routers as Designated Routers. How is this possible?
A. It's not -- there's some kind of configuration error or IOS bug.
B. The routers are on different network segments.
C. The routers are in different areas.
D. One of the routers is an ASBR.
E. One of the DRs is an ABR.
Answers right after this VERY important opportunity - for you!
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Let's get to those answers!
1. (C, D). The FD is the total of the EIGRP metric from the next-hop router to the destination network and the metric from the local router to the next-hop router.
2. (B, D). Unexpected classful network numbers in your routing table can be caused by using RIPv1 (which only recognizes classful networks) or the effects of autosummarization.
3. Both versions of RIP send out full routing table updates after 30 seconds. Neither EIGRP nor OSPF do that, and with static routing there are no updates.
4. (A). One thing about link state protocols such as OSPF -- you have to watch the workload on the router. Your higher-end routers should be the workhorses of your OSPF network.
5. (B). It's vital to remember that a DR will usually be elected for every segment, not just every network. In this case, it's likely your router is connected to two OSPF networks, and it sees a different router as the DR for each of those segments.
Great work!
I'm posting CCNA and CCNP practiceexams 4 - 5 times a week on the Bulldog Blog, so be sure to visit there and these other TBA CCNA resources ..
... and thanks for making TBA part of your CCNA success story!
22 hours of my world-class CCNA instruction.
All videos fully downloadable.
An exclusive online forum to ask me questions.
All of this - and you're paying around $5 an hour for the videos.
Beats going into hock for thousands of dollars ... and you can click this widget to watch the first two OSPF lessons free - a full and free hour of my Video Boot Camp training!
