CCNP Practice Exam Questions:
BSCI Exam - BGP Question Set #4
Vital Reading And Watching For All Cisco Certification Candidates:
The July 2010 CCNP Changes (And How To Beat Them!)
Here's our 4th set of BGP practice exam questions to help you prepare for success on the BSCI exam and earn your CCNP!
You'll find the answers at the bottom of the page.
You can find the first set of BGP questions here, and our main CCNP Practice Exam page has many more practice exams for you!
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Chris Bryant
CCIE #12999
"The Computer Certification Bulldog"
chris@thebryantadvantage.com
 
Question 1:
Name BGP's well-known mandatory attributes.
Question 2:
You've configured BGP route aggregation as follows, but both the summary route and the more-specific routes are being advertised. You want only the summary route to be advertised. What changes do you need to make to this configuration?
R5(config)#router bgp 500
R5(config-router)#aggregate-address 16.0.0.0 252.0.0.0
Question 3:
What is the command that will reset all BGP connections on a router?
Question 4:
What BGP regular expression would match an AS_PATH that contains only the AS number 150?
A. ^150$
B. $150$
C. _150$
D. _150_
Question 5:
You've configured a BGP peer relationship between two routers that are not directly connected, nor are they in the same AS. Can a BGP adjacency form between these routers?
A. Not under any circumstances.
B. Only if you use the ebgp-multihop command.
C. Yes, with no additional configuration needed.
D. They can form an adjacency, but cannot perform route reflection or redistribution.
Question 6:
Which of the following are optional BGP attributes?
A. community
B. aggregator
C. AS_PATH
D. MED
E. weight
F. next-hop
G. atomic aggregate
Question 7:
A BGP route displays an origin code of "?". What does this likely mean?
A. The route is corrupt.
B. The route was learned via redistribution.
C. The route was learned via iBGP.
D. It's a static BGP route.
E. The route is currently being computed by BGP's algorithm and should be available in just a few moments (similar to an Active route in EIGRP).
Answers are below!
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Answers:
1. The three mandatory BGP well-known attributes are AS_PATH, origin, and next-hop. These attributes will appear in all BGP update messages.
2. You'll need to add the summary-only option to the aggregate-address command. That will result in only the summary being advertised.
3. clear ip bgp *
4. "A".
5. "B". If potential eBGP neighbors are not directly connected, you'll need the ebgp-multihop command to allow adjacencies to form.
As the command itself indicates, this command isn't used between iBGP neighbors.
6. "A, B, D". Aggregator, community, and MED are all optional BGP attributes.
7. "B". The BGP origin code "incomplete" is signified by a question mark. Generally, this indicates the route was learned by route redistribution.
For more BSCI practice exams, head back to our CCNP Practice Exams Page!
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