By Troy McMillan
An attractive technique for a person starting a occupation in networking
As the realm chief of networking services and products, Cisco items are consistently growing to be popular. but, few books are geared toward people who find themselves starting a occupation in IT--until now. Cisco Networking Essentials offers a superior starting place at the Cisco networking services and products with thorough assurance of basic networking options. writer Troy McMillan applies his years of lecture room guideline to successfully current high-level issues in easy-to-understand phrases for rookies. With this imperative full-color source, you'll speedy examine the options, methods, and abilities which are necessary to administer Cisco routers and switches.* starts with a transparent breakdown of what you could count on to profit in each one bankruptcy, via a simple dialogue of strategies on middle themes* contains urged labs and assessment questions on the end of every bankruptcy, which inspire you to augment and degree your realizing of the themes mentioned* Serves as an awesome start line for studying Cisco networking items and services
If you have an interest in a occupation in IT yet have very little wisdom of networking and are new to Cisco networking items, then this booklet is for you.
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Example text
However, with respect to the study of the TCPIIP protocol suite, it is important that you understand the TCPIIP model, which is covered in detail in the next chapter. Introducing the Layers of the OSI Model There are seven layers in the OSI modet each layer plays a role in creating a package of data along with critical information describing the data. This package will be sent from one device to another device, where it will be taken apart and read. This process is called encapsulation and de-encapsulation and will be explained more fully in the last section of this chapter.
De facto D. Registered 7. Which statement is true ,;vith regard to a LAN? A. Distributed across a large geographical area B . High speed C. Leased from a telecommunications company D . Requires a server 8. True or False: A de facto standard is one that all parties agree to and is usually adopted by a body formed to create standards. 9. A peer-to-peer network is also sometimes called a. A. Realm B. Domain C. Workgroup D. Organizational unit 10. Which of the follovving are shortcomings of a peer-to-peer network?
Using another protocol in the TCP/IP suite, Address Resolution Protocol (ARP), the MAC address will be learned and placed in the package. The process that is used to "learn" the MAC address is discussed in Chapter 3. " To accomplish its goal, the Data-Link layer adds the MAC address "in front" of the information it receives from the Network layer. As all the layers do, it considers all the information from above as data and does not concern itself with the specific information added at layers 3, 4, 5, 6, and 7.