By Mike Harwood
Research, organize, and perform for examination good fortune grasp each subject at the most recent 2010 community+ examination. verify your wisdom and concentration your studying. Get the sensible place of work wisdom you would like! Start-to-finish community+ guidance from best community administrator, advisor, and best-selling community+ writer Mike Harwood! grasp each community+ subject! Networking parts, units, media, and connectors TCP/IP protocols, addressing, and routing Ethernet networking criteria instant networks vast zone networks The OSI version community functionality and optimization Troubleshooting methods and most sensible practices Command-line networking instruments community administration instruments Documentation tactics community entry safety defense applied sciences and malicious software program try your wisdom, construct your self belief, and prevail! jam-packed with visuals that can assist you examine quickly Dozens of troubleshooting situations Real-world community+ prep recommendation from specialists Easy-to-use examination education activity lists From Mike Harwood, expert community platforms supervisor, advisor, and writer of 3 best-selling books at the community+ examination CD positive aspects 1 whole pattern examination specific factors of right and flawed solutions a number of attempt modes Random questions and order of solutions Shelving type: community Certification
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Extra info for CompTIA Network+ (N10-004) Cert Guide
Example text
Also, the Internet has clients and servers just like a small network might have. The Internet uses certain devices, such as network routers, that are not as common in a home network, but the basic building blocks of both networks are the same. The term Internet is derived from the term internetwork, which describes a group of connected networks. NOTE: The operation of a network needs to be transparent to the people who use it. Users, for example, need to print to a printer connected to the network just as easily as if it were attached to their own PCs.
Network administration—including network security, backups, and network monitoring—is done from the server. To perform their functions, server computers require additional resources and computing power. Server systems often use specialized hardware and software in fault-tolerant configurations to ensure that they remain operational. When a server fails and goes offline, it cannot respond to requests from client systems, and its functions are unavailable. This situation can be frustrating for users and costly for an organization.
Scheduling backups to occur at regular intervals is easier with a centralized network design. Disadvantages of Client/Server Networking The following are some of the disadvantages of the client/server networking model: ■ High cost—A server-based network requires additional hardware and software, so it can be a costly venture. The costs of the client/server model include the costs of the network operating system and at least one server system, replete with specialized server hardware. Also, because the client/server model can support far more systems than the peer-to-peer model, networking devices such as hubs, routers, and switches are often needed.