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application layer, 617. application layer, 617 client service, 270 server service, 270. See Extensible authentication protocol. See Extensible authentication protocol over LAN. See Extensible authentication protocol over wireless. architecture (EISA), 118 Extensible authentication protocol. Extensible authentication protocol over wireless (EAPoW), 198, 460. 272–273 active mode, 396 application layer, 615. See Point-to- multipoint topology Hubs . application layer, 616–617. See Network...
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xi ChApTEr 1 Network Fundamentals Introduction What Is a Network Logical Networking topologies Physical Networking Models Network types summary of exam objectives exam objectives Fast track exam objectives Frequently Asked Questions self test self test Quick Answer Key ChApTEr 2 Network Media Introduction Cabling and Connectors overview Media Issues Cable testers and troubleshooting simplex, half-Duplex, and Full-Duplex Cabling Cable Management...
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Robert also has many years of diverse experience deploying and engineering mainframes and Linux- and Unix-based systems such as Red Hat and Sun Solaris. She holds many Microsoft certifications, includ- ing an MCSE and MCT, as well as additional industry certifications such as. Since the start of her technical career she has worked in many facets of the technology world,...
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massive changes in the later part of the twentieth century. After the first successful words were sent over the device on March 10, 1876, a revolu- tion of communication began. These events would have a massive impact on the innovation of computers, even though they wouldn’t be invented until 60 years after Bell’s first successful phone call.. Although arguments could...
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This would keep everyone’s files on one or more servers, allowing their work to be kept secure and regularly backed up.. When a decentralized network model is used, a network’s resources are distributed through different areas of the network, and administration is shared by designating responsibility to system administrators or individual users. For example, printers may be scattered throughout an...
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It doesn’t take data and then resend or regenerate it, so each computer isn’t essential to the network as a whole. Another benefit of this topology is that it is inexpensive, as less cable is used than other topologies we’ll discuss. In a bus topology, every computer is connected to a single cable.. If the cable breaks, then each segment...
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In this chapter, we discussed the fundamentals of networking, including what defines a network, and how networks came to be. In creat- ing this network, it will use one or more topologies, which is the physical layout of network components. The topologies we covered in this chapter were bus, star, ring, mesh, and wireless. Finally, the geographic scope of this...
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Connectors attached to the ends of the cables are plugged into or coupled in some way with a network card or other device on your network. Just as a car uses an on ramp to enter a high- way, the connector provides an access point for data to move along the cable to its intended destination.. A network card passes...
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If you’ve ever extended the cable for your cable TV, you’re probably familiar with some of the ease and difficulty you’ll face. The connectors for coaxial cable are fairly simple to install, but the cable is relatively thick and rigid and can require some finesse in navigating it around corners.. Not only is it somewhat difficult to install, but it...
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When connecting twisted-pair wire to an RJ-45 connector, the wires will have to be aligned so that they match up with the pins of the connector.. When installing cable, you first need to choose the location of the hub, switch, or router. These devices will be where the cable will attach to, and as we’ll see in the next chapter,...
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Twisted-pair and Coaxial Cable Connectors. Several types of connectors are available for coaxial cable. Depending on the need, connectors that connect to different cable and devices are available for twisted-pair and coaxial. As shown in Figure 2.2, with some imagination, the D connector can be seen as looking like a letter D turned on its side. The number of pins...
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In addition to this, it allows a single 1394 port to have up to 63 external devices connected to it. As we discussed briefly in the previous chapter and will discuss in greater detail in Chapter 4, wireless networks require minimal cabling. They are also the part of the interface that actually connects to the media.. Transceiver types can be...
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Use 10BaseT cabling in each of the buildings, and connect the two buildings together using 10Base5 cabling.. Use 100BaseFX cabling in each of the buildings, and connect the two buildings together using 10BaseT cabling.. Your network uses 100BaseFX so that data can be transferred at 9.. Which of the following transmission methods is used?. Which of the following types of...
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hEAd oF ThE ClASS…. what do I Need to Know About Token ring for the Network+ Exam?. Although an aging technology, Token Ring is still sup- ported on a great many networks. The reason is that the mainframes used to be the rulers of the world and many companies relied on them to store their data.. Many of those older...
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It will also be clearer due to the fact that the data is being passed in a digital format.. This means that the data is not hindered by the session setups and the communications required by the devices. The D channel keeps all of this information off the data streams. Because of the separation, the setup and takedown of each...
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Firewalls are devices or software that has the ability to control the traffic that’s sent from an external network, such as the Internet, to an internal network or local computer. As we’ll see later in this chapter, the features that are provided by a firewall will vary depending on the type you choose for your network.. The most common implementation...
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Furthermore, an IDS often stores a database of known attack signatures and can compare patterns of activity, traffic, or behavior it sees in the logs it is monitoring against those signatures to recognize when a close match between a signature and current or recent behavior occurs. To be more specific, intrusion detection means detecting unauthorized use of the network or...
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What makes a switch different is that it will take the data sent to one port on the switch, and then determine which of the other ports will allow the data to get to its intended destination.. required for me to communicate on the ISDN medium?. ISDN line and to receive the data packets from the ISDN connec- tion and...
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is the process of sending data from segment to segment based on the MAC address, what happens when data has to be sent to a remote network? The data is sent to the default gateway (commonly a router), which sends the data to its destination. The time spent sending the data from the switch to the router and then the...
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Install a bridge to break the larger LAN into two smaller ones, and then connect these to the other LAN using a switch.. Install a switch to break the larger LAN into two smaller ones, and then connect these to the other LAN using a switch.. When it reaches the hub, which of the following will occur?. The message is...