CCNA INTRO: Introduction to Cisco Networking Technologies - download pdf or read online

By Todd Lammle

ISBN-10: 0470068507

ISBN-13: 9780470068502

Take your first step to CCNA certification From bestselling writer Todd Lammle comes the main updated e-book on CCNA examination 640-821, the 1st examination in Cisco's renowned two-exam Cisco qualified community affiliate (CCNA) certification tune. comprehend networking for the small or domestic place of work marketplace, arrange for the examination, and obtain the talents you would like with this accomplished advisor. within you will find: entire assurance of all examination goals in a scientific process, so that you could be convinced you are getting the guide you would like functional hands-on workouts to augment serious abilities Real-world situations that convey you existence past the school room and positioned what you will have discovered within the context of exact activity roles hard overview questions in each one bankruptcy to arrange you for examination day examination necessities, a key characteristic on the finish of every bankruptcy that identifies serious parts you want to turn into informed in ahead of taking examination 640-821 A convenient tear card that maps each legit examination aim to the corresponding bankruptcy within the ebook, so that you can song your examination prep aim by way of aim glance inside of for entire assurance of all examination pursuits. Featured at the CD SYBEX try out ENGINE: try your wisdom with complicated trying out software program. comprises all bankruptcy evaluation questions and bonus tests. digital FLASHCARDS: make stronger your knowing with flashcards which could run in your notebook, Pocket workstation, or Palm hand held. additionally on CD, you will find preview variations of the CCNA Video sequence and the CCNA Audio sequence from writer Todd Lammle, in addition to the complete ebook in searchable and printable PDF. examine wherever, any time, and method the examination with self belief.

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Extra info for CCNA INTRO: Introduction to Cisco Networking Technologies Study Guide: Exam 640-821

Sample text

In fundamental, reliable, connection-oriented data transfer, datagrams are delivered to the receiving host in exactly the same sequence they’re transmitted—and the transmission fails if this order is breached! If any data segments are lost, duplicated, or damaged along the way, a failure will transmit. This problem is solved by having the receiving host acknowledge that it has received each and every data segment. , a three-way handshake). It uses sequencing. It uses acknowledgments. It uses flow control.

1 with a switch? Whether you did or didn’t, the reason I did that is because hubs don’t segment a network; they just connect network segments together. So basically, it’s an inexpensive way to connect a couple of PCs together, which is great for home use but that’s about it! Routers are used to connect networks together and route packets of data from one network to another. Cisco became the de facto standard of routers because of its high-quality router products, great selection, and fantastic service.

Another example for our nibble values would be 1010, which means that the 8 bit and the 2 bit are turned on, which equals a decimal value of 10. If we have a nibble binary value of 0110, then our decimal value would be 6, because the 4 and 2 bits are turned on. But the byte values can add up to a value that’s significantly higher than 15. This is how: If we counted every bit as a one (1), then the byte binary value would look like this (remember, 8 bits equal a byte): 11111111 We would then count up every bit spot because each is turned on.

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CCNA INTRO: Introduction to Cisco Networking Technologies Study Guide: Exam 640-821 by Todd Lammle

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