Steve,
Welcome to the Saturday, June 24 edition of The Mastermind!
I know it's the weekend and you've got a lot you want to do, so thanks for taking a few minutes of your time to read The Mastermind.
Let's get started!
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Thought For The Day:
"Progress always involves risk. You can't steal second base and keep your foot on first."
- Frederick Wilcox
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I've got two sets of CCNA and CCENT questions for you over on the main site. Both question sets now have the answers posted on that same page. Enjoy!
CCNA Certification: Frame Relay Questions
CCNA Certification: HDLC And PPP Questions
I'll post another bonus set of questions - maybe two! - on the website over the weekend. Watch the blog and tomorrow's newsletter for links to these exclusive question sets you'll find nowhere else!
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Here are today's Cisco certification exam practice questions!
CCNA Certification:
Which of the following values must two routers running EIGRP agree upon to become neighbors?
A. The AS number.
B. The process number.
C. The metric weights.
D. The version number.
E. The DUAL version.
CCNP Certification / BSCI Exam:
You see an ISIS route marked as "L2" in a routing table. What do you know to be true about this route?
A. The route was learned via redistribution.
B. The route is a static route.
C. The route is a default route.
D. The route's destination is in another area.
E. The route's destination is in the local area.
CCNP Certification / BCMSN Exam:
You've decided to introduce Backbonefast to your network. On what switches should this service be enabled?
A. All switches in the network.
B. Access-layer switches.
C. Distribution-layer switches.
D. Core-layer switches.
CCNP Certification / ISCW Exam:
Short answer: Name three authentication methods that a Cisco IOS Firewall can use.
CCNP Certification / ONT Exam:
"End-to-end delay" is the sum of which of the following delay types?
A. processing delay
B. queuing delay
C. propagation delay
D. serialization delay
Answers right here on Sunday!
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Give Me Five Minutes, And I'll Show You EXACTLY How I'll Work With You To Make You A CCNA.
"I wrote my CCENT on the 29th of April and my CCNA on the 14th of May, and your study material made the difference." - Edward Van Zyl, New CCENT and CCNA
"Hi Chris, I am glad to report that I have passed my CCNA on the first try. Thank you for your material. I enjoy your material, as you talk straight to me without all the clutter that exist in other CCNA prep materials." - Andre Forestal, New CCNA!
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"Hi Chris, I'd like to thank you for your help and advice. I sat my CCENT 640-822 on Friday the 2nd of May and passed convincingly. A lot of that can be accredited to your CCENT study guide. The section on subnetting was helpful in particular.
I found the material was well explained and well laid out. I'll continue to use your material while I prepare for my CCNA." - Jay McDonald, New CCENT!
It's time for you to join these successful CCNAs and CCENTs.
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The Ultimate CCNA Study Package
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Here are the answers to yesterday's questions!
CCENT And CCNA:
Your router has a Serial1 interface with an IP address of 200.1.1.1 /24. You want to create a static route that sends packets out that interface if there is no other match for the destination in the routing table. What single command will accomplish this?
Answer: ip route 0.0.0.0 0.0.0.0 serial1. You'll only use the IP address in the ip route command when you're referring to an address on the next-hop router. When you're specifying a local exit interface, that interface's IP address is not referred to in the command.
CCNA:
What is the destination address of an EIGRP hello packet?
A. 224.0.0.5
B. 224.0.0.6
C. 224.0.0.9
D. 224.0.0.10
E. 224.0.0.255
F. EIGRP does not send Hello packets.
Answer: D.
CCNP Certification / BSCI Exam:
Identify the optional transitive BGP attributes.
A. origin
B. next-hop
C. LOCAL_PREF
D. AS_PATH
E. aggregator
F. atomic aggregate
G. community
H. MED
Answer: E, G. Community and aggregator are the two transitive optional BGP attributes, "transitive" meaning that their values will be carried from one AS to another. MED is the only optional non-transitive attribute.
CCNP Certification / BCMSN Exam:
Short answer: Briefly describe the purpose and operation of DHCP Snooping.
Answer: DHCP Snooping is a method of detecting rogue DHCP servers and minimizing or eliminating their impact on the network. DHCP Snooping determines whether a DHCP device is trusted or untrusted, and only DHCP messages from trusted devices are passed through the switch.
CCNP / ISCW Exam:
Name the two different methods of running TCP Intercept and briefly discuss the main difference between the two.
Answer: TCP Intercept can run in intercept or watch mode. In Intercept mode, the router will not forward incoming SYN packets directly to the intended destination; the router itself answers those incoming TCP SYN packets with a SYN-ACK.
If the SYN source turns out to be legitimate, the router will have a successful three-way handshake with that source. At the same time, the router will open a TCP connection to the original destination, and then merges the two TCP connections.
SYN packets from non-legitimate sources never reach the original destination.
In watch mode, the router takes a more passive role. The router will not intercept incoming SYN packets, but will allow them to reach the intended destination. The router watches that incomplete TCP connection, and if it's not completed in a certain period of time - by default, 30 seconds - the router will close the connection, preventing the connection from remaining in an incomplete state for an indefinite period of time.
CCNP / ONT exam:
Name the three packet drop modes used by Random Early Detection, and briefly discuss each.
No Drop: When the number of packets in the queue is between zero and the minimum, RED drops no packets. After all, if the queue size is below the minimum threshold, why drop packets?
Random Drop: Between the minimum and maximum thresholds, packets are randomly dropped ("early detection"). As the queue size gets closer to the maximum, RED increases the drop rate.
Full Drop: When the queue size exceeds the maximum, all newly-arrived packets are dropped until the queue size no longer exceeds that maximum. If that sounds like tail drop, that's because it is!
That's it for today! Enjoy your day, and I'll see you Sunday with at least one new set of CCNA practice questions!
To your success,
Chris Bryant
CCIE #12933
http://www.thebryantadvantage.com/
The Bryant Advantage, 9429 Apple Blossom Drive, Mechanicsville, VA 23116, USA
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