Exams..

Hi people, just a few simple questions if I may,

I did a CCNA course a while ago and never did the exam, I looked over some old books and notes recently and decided to re-study the CCNA.

Ive decided to do the 2 exam path, as I work full time, one thing ive noticed is that there seems to be conflicting information on some sites, for example the CCNA full exam is 640-802, yet here you say its 640-801??

I noticed this with the CCNA INTRO and CCNA ICND (640-822 and 640-816?) or some sites say its 640-821 and 640-811? its most confusing...

I also started reading an INTRO booklet my friend gave me from CISCO PRESS, and in the first chapter it goes on about the TCP/IP model over OSI model?? I thought the standard is OSI, so why is this book saying that TCP/IP model has won the standards war?

Many thanks people.

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Comments

ptlinva

Hi WebSponge,

I'm new so take this with a grain of salt...

The only place to take Cisco test is with with VUE, found at

http://www.vue.com

You may start at

http://www.vue.com/cisco

The first two test we should take are...

640-816 Interconnecting Cisco Networking Devices Part 2
640-822 Interconnecting Cisco Networking Devices Part 1

These are the latest versions of those two test.

This may be verified at...
http://www.cisco.com/web/learning/le3/le2/le45/learning_certification_level_home.html

Good Luck!
-Paul

mikej412

Check out the CCNA FAQ

If you are a Network Academy Graduate from the 640-801 days, you might have until about June or July 2009 to take the old exam. I think we did have someone just recently take it and that's where I think I heard that date. You'd have to check with your Academy to find the procedure (probably a code and call Vue).

Otherwise the FAQ has the link to the Cisco CCNA Certification page. That gives you the current single 640-802 CCNA exam option or the two exam 640-822 ICND1 and 640-816 ICND2 option.

While the TCP/IP crowd was busy running the Internet, the losers of the protocol war spent all their new found free time convincing everyone else that their model was superior (even though their protocols got their packets kicked) and should be used to describe network communications.

When someone pointed out that TCP/IP seems to be ruling most of the worlds networks, the losers said that the TCP/IP model could be mapped to the OSI Model (and for some payback, they dropped the physical/hardware layer from the TCP/IP model in their mapping and claim the TCP/IP model only has 4 layers).

websponge

OK., that helps a little, how different is the old exam? thats what I studied for, but would rather do the new exam, I assume whats new is more wireless topics and perhaps IPV6?

and for the 2 CCNA exams, Im ok studying the TCP/IP model then, correct?

jscimeca715

I'm studying for the CCENT currently and have studied the TCP/IP model. I think it would help to know how the TCP/IP model maps to the OSI model in terms of what layers match.

Kaminsky

The OSI model never really got taken up primarily due to the long standardisation process. TCP/IP was developed by a load of university researchers and got taken up and eventually took control of the marketplace.

However, although the TCP/IP stacks may be in use in reality, the OSI model is used as a way of referencing particular areas/aspects of functionality of the stack under discusion.

So you still need to know both.

pitviper

jscimeca715 wrote: »

I'm studying for the CCENT currently and have studied the TCP/IP model. I think it would help to know how the TCP/IP model maps to the OSI model in terms of what layers match.

From Wikipedia:

The Internet Layer is usually directly mapped to the OSI's Network Layer. The Transport Layer of the TCP/IP model, sometimes also described as the host-to-host layer, is mapped to the OSI Layer 4 (Transport Layer) and lower part of OSI Layer 5 (Session Layer) functionality. OSI's Application Layer, Presentation Layer, and the remaining functionality of the Session Layer are collapsed into TCP/IP's Application Layer. The argument is that these OSI layers do normally not exist as separate processes and protocols in the Internet world.

However, the Internet protocol stack has never been altered by the Internet Engineering Task Force (IETF) from the four layers defined in RFC 1122. The IETF makes no effort to follow the seven-layer OSI model and does not refer to it in standards-track protocol specifications and other architectural documents. The IETF has repeatedly stated that Internet protocol and architecture development is not intended to be OSI-compliant.

mikej412

websponge wrote: »

I assume whats new is more wireless topics and perhaps IPV6?

Yep, and Security.

What you hopefully learned before about the OSI model and TCP/IP model (and how Cisco says they relate) is still what you need to know. For troubleshooting the 7 layer OSI model is useful.

But personally I think they left out 2 other layers from the OSI Model that would make it even more useful for troubleshooting -- layer 0 (power - is it plugged in?) and layer 8 (PIBCAK - the user).