Network+ Guide to Networks by Tamara Dean

By Tamara Dean

Realizing the best way to set up, configure, and troubleshoot a working laptop or computer community is a hugely marketable and interesting ability. This ebook first introduces the basic development blocks that shape a contemporary community, equivalent to protocols, topologies, undefined, and community working structures. It then presents in-depth insurance of an important techniques in modern networking, reminiscent of TCP/IP, Ethernet, instant transmission, and protection. After interpreting the ebook and finishing the end-of-chapter workouts, you can be ready to pick the simplest community layout, undefined, and software program on your surroundings. additionally, you will have the talents to construct a community from scratch and continue, improve, and troubleshoot an current community. ultimately, you'll be organized to cross CompTIA?s (the Computing expertise Association?s) community+ certification examination. This booklet explains techniques logically and in a transparent, approachable sort. additionally, options are bolstered by means of real-world examples of networking matters from a professional?s point of view. each one bankruptcy opens with an at the task tale from a community engineer. those real-world examples, besides Hands-on tasks and Case initiatives in every one bankruptcy, make this ebook a realistic studying instrument. the various tables and illustrations, in addition to the glossaries, appendices, and learn questions make the e-book a precious reference for any networking expert

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Figure 1-2 illustrates how resources are shared on a client/server network. To function as a server, a computer must be running an NOS (network operating system). An NOS is a special type of software designed to do the following: • Manage data and other resources for a number of clients. • Ensure that only authorized users access the network. orkstation (client) Server Renting (Short-Term T Option) Advantages Disadvantages No risk of obsollescence No risk of obsollescence No ownership of equipment No long-termfinancial invvestmen entnt en High monthlly costs Disadvantages No initial investment of fundsd Restrictivev rental agreement r s No ownership Maintenance usually included Renting (Short-Term T Option) Advantages No long-termfinancial investmen en ent High monthly No initial investment of funds Restrictive ren r Renting (Short-Term T Option) Leasing ( Advantages Disadvantages Advantages No risk of obsollescence No ownership of equipmentn No risk of obsollescence Maintenancec usually included Leasing (Longer-Term T Option) No long-term financial investment Advantages Disadvantage No initial investment of fundsd No risk of obsollescence HiHigh cost of c Less expensive than rrenting No long-term financial investment Longe nge ger time mm No initial investment of fundsd No owner ner of equip nership No long-termfinancial investmen en ent g No initial investment of funds High monthlly costs Restrictive rrental agrreements Maintenancec usually included Leasing (Longer-Term T Option) Advantages Disadvantages Advantages No risk of obsollescence HiHigh cost of canceling lease Total control over v equipment Lessexpensive than renting No long-term financial investment Longe nge ger time commitment than rentin r g oaxial Co Can sell equipment at any time m Purchasing No initial investment of funds Advantages Disadvantag Cann ddepreciate Ca r equipment Total control over equipment High initial investmen Loww costst if owned for a number of yearsr No owner nerership of equipment e cable Less expensive than rentin r g Purchasing Can sell equipment at any time m Additional cost of mainte Advantages Disadvantages Cann ddeprecia Ca r te equipment Possibility of obsole o scence Total control over equipmentn High initial investmentnt Low costst if owned for a number of yearsr Other expenses, including taxes and nd insuranc r e Can sell equipment at any time m Additional cost of maintena na c nance Cann ddepreciate Ca r equipment Possibility of obsollescence Low costst if owned for a number of yearsr Other eexpenses, including taxxes and nd insurancee d lded Shiee Connectivity device Printer (client) Figure 1-2 Resource sharing on a client/server network p ted-p twist able air ca Workstation (client) 1 6 Chapter 1 • Control which type of files a user can open and read.

By default, no computer on a peer-to-peer network has more authority than another. However, each computer can be configured to share only some of its resources and keep other resources inaccessible. ■ Traditional peer-to-peer networks are usually simple and inexpensive to set up. However, they are not necessarily flexible or secure. ■ Client/server networks rely on a centrally administered server (or servers) to manage shared resources for multiple clients. In this scheme, the server has greater authority than the clients, which are typically desktop or laptop workstations.

Network junction clip d. Network line extender 13. Which of the following is one function of a network protocol? a. To ensure that connectivity devices are configured properly b. To establish rules for routing mail messages in an organization c. To ensure that data arrives at its destination in the proper sequence d. To prevent unauthorized users from logging on to a file server 14. The physical layout of nodes on a network is known as the network’s: a. Schematic b. Topology c. Formation d. Grid 15.

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