Thursday, September 18, 2008

Cisco CCNP Certifications Exam 642-892

This series of articles 642-642 is intended for people who are interested in diving into the "guts" of serial data communications systems. This material is rarely taught in university courses, and it can be tough to learn "on the job".

As with any software development, the individual topics are simple, but tying them all together can be very complex. 642-825 This text takes a layered approach to the subject, in order to avoid overwhelming the novice. The first chapter deals with the bare copper wires and how they are handled. Subsequent chapters will add layers of protocol.

Typical serial communication can happen at just about any level. Some applications pull "raw" data right off the wires 642-892 while others use full packet networks on multiple computers. For more, see "Why Serial Programming?" in the introduction.

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