Steve,
Welcome to the Thursday, July 3 edition of The Mastermind!
The response to the new CCNA certifications has been huge, and I can tell that many of you who were taking the summer off from your studies have gotten back on track, which is great to see!
To help you get there, I've got four CCNA question set links for you today, a special offer for CCNP candidates, and CCNA Security questions are a daily part of the newsletter now as well!
There's also a new CCNA Security tutorial for you on the main site, and I've got a link to that article in today's newsletter as well.
And you thought the summer would be boring! ;)
Let's get started!
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Thought For The Day:
"Believe and act as if it were impossible to fail." -- Charles Kettering
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New CCNA And CCENT Questions Have Been Posted!
I've got three sets of CCNA and CCENT questions for you over on the main site, and a fourth set was added earlier this week. Here are the first three in the series:
CCNA Certification: Frame Relay Questions
CCNA Certification: HDLC And PPP Questions
CCNA Certification: Static Routing And RIP Questions
The questions on static routing and RIP includes a tutorial on floating static routes that you CCNP candidates should read as well!
CCNA Certification Training Questions: RAM, ROM, Flash, And More!
Enjoy!
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Cisco Has Announced Three Additional CCNA Certifications -
But To Earn Them, You've Got To Be CCNA Certified, So Get Started Today!
Cisco has announced three brand-new CCNA-level Certifications:
CCNA Security
CCNA Voice
CCNA Wireless
Click those links to go to the new resource pages I've created for each new exam - I'll post practice questions, written tutorials, and video training on those pages in the weeks and months ahead. There is a new CCNA Security tutorial on using SDM to configure one-step lockdown - the link is on the CCNA Security page.
These new certifications are going to be a tremendous career boost to those who earn them.
Why? Just look at these statistics!
Security: Right now, 46% of companies included in the survey have a position dedicated to security - that's going to almost double over the next five years to 80%.
Voice: Currently, 40% of surveyed customers have a voice specialist. That number will rise to 69% in the next five years.
Wireless: While 33% of surveyed companies currently have a position dedicated to wireless, that value will double over the next five years to 66%.
(Stats were arrived at by Forrester Consulting during a study sponsored by Cisco. You can get a copy here.)
Those statistics tell a simple tale:
Network admins who have knowledge and certification in security, wireless, and voice will have a huge advantage over network admins who do not.
That's why Cisco is introducing these new certifications, and exactly why I'll be releasing Study Packages for all three of these specializations, beginning in September!
There's one detail you need to take care of now, though.
To earn any of these CCNA specialist certifications, you must earn your CCNA first, by either the one-exam (640-802) path or the two exam path (ICND 1 and 2).
This announcement by Cisco makes it more important than ever to be CCNA certified. Be ready to earn these new certifications by earning your CCNA now!
Just imagine how impressive your resume and reputation will be when you're CCNA certified and certified in security, voice, and wireless!
Personally, I'd hire you in a minute, and I've always been tough about who I hire. And if you already worked for me, you'd get the next promotion.
Get ready for these new certifications by starting on your CCNA now. Take five minutes to read this page - it's more important than ever.
The Ultimate CCNA Study Package
Starting this September, I'll be releasing Study Packages for CCNA Security, CCNA Voice, and CCNA Wireless. While I'm working on those, you need to be working on your CCNA to take advantage of these vital new certifications.
Click that link and let's get started!
The Ultimate CCNA Study Package
If you prefer CBT training, check out my CCNA Video Boot Camp - over 25 hours of CCNA training from yours truly, shipped to you by my friends at Trainsignal!
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Here are today's Cisco certification exam questions!
CCNA Certification:
Convert the hex value "Cd" into both a decimal value and binary string.
CCNA Security:
What is the net effect of this command?
R1(config)#aaa authentication login default group radius group tacacs
CCENT Certification:
Name the layers of the TCP/IP networking model and describe how those layers map to the OSI model.
CCNP / BSCI Exam:
What makes a floating static route "float"?
CCNP / BCMSN Exam:
What is an Etherchannel? Why do we use them? What physical limitations should be considered when configuring one?
CCNP / ISCW Exam:
Name the four available severity levels for IPS signatures.
CCNP / ONT Exam:
You can configure TCP header compression and RTP header compression in "passive mode". What's the net effect of doing so?
Answers right here on Friday, July 4!
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Get All Four Of My CCNP Study Packages With The CCNP Study Package Bundle - You Save $70 And Begin Studying For CCNP Exam Success Immediately!
My BSCI, BCMSN, ONT, and ISCW Study Packages have helped CCNP candidates just like you master the skills needed to earn your certification, and right now you can save $70 and start studying for CCNP exam success just a few minutes from now with my CCNP Study Package Bundle!
The Ultimate CCNP Study Package Bundle
"I passed the ISCW with a 989!" - Terry Vinson, CCNP
"I passed the BSCI with a 922. Your study materials have been great!" - Pablo Mariano
"The BCMSN Study Guide and lab time were just what I needed to pass the 642-812 exam on my first attempt! The study guide helped me understand things in plain English." - Bryan Bartik
The road to the CCNP begins here - with a single click!
The Ultimate CCNP Study Package Bundle
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Here are the answers to yesterday's questions!
CCNA Certification:
What character or combination of characters indicates a statically configured default route?
Answer: An "S*" next to a route indicates that it is a default static route. If there were no asterisk next to the "S", that indicates a regular static route.
CCNA Security Exam:
What is a honeypot? What purpose does it serve in today's networks?
Answer: With so much emphasis put on network security, it sounds really strange that we would invite attacks on a server. That's exactly what we do when we create a honeypot! A honeypot isn't just an unprotected network device - we're actually inviting attacks.
There's a method to the madness, though!
Honeypots serve a dual purpose. First, they lure network attackers away from our production servers. If you have one server that's an easy target and then others that are not, you can bet that easy target will be the first one attacked.
Honeypots aren't just a diversionary tactic, though. As network attacks on the honeypot begin and the packets are analyzed, this information can be used to identify new attacks - and to help create signatures to defend against them.
CCENT Certification Question:
Which one of the following networking terms is not associated with the same OSI layer as the others?
A. router
B. packet
C. TCP
D. IP
Answer: C. TCP runs at the Transport layer of the OSI model. The other three terms are associated with the Network layer.
CCNP Certification / BSCI Exam:
If an IPv6 address begins with "FF", what kind of address is it?
A. broadcast
B. unicast
C. anycast
D. multicast
Answer: D. Any IPv6 address beginning with "FF" is a multicast. IPv6 does not use broadcasts.
CCNP Certification / BCMSN Exam:
You've configured an Etherchannel and note that the trunk has gone down. You check the interfaces on one switch and note that two are "err-disabled". The corresponding ports on the other switch are not. What should you do?
A. Nothing - that's the normal and desired behavior.
B. Shut and reopen the err-disabled interfaces.
C. Shut and reopen the non-err-disabled interfaces.
D. Use the err-abled command on the err-disabled interfaces.
Answer: B. After finishing the config, shut and reopen the err-disabled interfaces. If the configuration is correct, that will do the trick.
CCNP / ISCW Exam:
Name three separate actions that can be taken when certain traffic matches a signature in IPS.
Answer: Here are four actions that can be taken when a signature matches network traffic:
Drop the packets
A TCP Reset can be sent
Block traffic from the source IP or the connection as a whole for "X" minutes, "X" being a configurable value
Send an alarm message to a management device or to the log
CCNP / ONT Exam:
What is global synchronization? If it's good, describe the benefits. If it's bad, describe why it's bad.
Answer: Here's a quick tutorial on global synchronization.
When a queue is full, packets that are trying to queue up for transmission literally have nowhere to be put! These packets are then subject to tail drop, which is a fancy way of saying "you're being dropped because we have no place to put you".
You know that TCP has a detection and recovery scheme when it comes to missing segments, so tail drop is no big deal, right? Quite the opposite, it's a huge deal.
The problem starts innocently enough, as the senders realize their TCP packets are being dropped. As we'd expect, the senders then throttle back on their transmission speed. After doing so, the senders will then gradually speed their transmission rates back up.
As multiple senders increase their tranmission rates, the queue will fill up again, and the senders will again almost simultaneously slow their tranmission rates, followed by another near-simultaneous increase.
As a result of this global synchronization, the links are perpetually in one of two states - congested or underused. Basically, the network ends up being either hammered or not being used to its full potential, and those are both circumstances we want to avoid.
Whew! That's it for today! Enjoy your day, and I'll see you Friday!
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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