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Networking: A Beginner’s Guide Fifth Edition- P8 pps

Networking: A Beginner’s Guide Fifth Edition- P18 ppsx

Networking: A Beginner’s Guide Fifth Edition- P18 ppsx

... the backup switch. In contrast, a larger unit can switch to redundant features automatically. As always, consider such trade-offs carefully for your particular company and its needs.69Chapter ... build a network using smaller 24-port switches. You can simply purchase an extra 24-port unit as a hot-swap backup (a backup unit that can be quickly swapped in to take the place of a failed ... contain address information about all the parts of your network, through either a static routing table that you program or a dynamic, learning-tree system that discovers all the devices and addresses...
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Networking: A Beginner’s Guide Fifth Edition- P19 pps

Networking: A Beginner’s Guide Fifth Edition- P19 pps

... Network Architecture (SNA) model, use a gateway. Gateways can also translate from Ethernet to Token Ring, although simpler solutions than gateways exist if you need such a translation. Because gateways ... that are handled by gateways. Most e-mail systems that can connect to disparate systems either use a computer set up as a gateway for that chore or let the e-mail server handle the gateway ... is discussed in later chapters. In particular, you should also know about remote access hardware, hardware that supports WAN links, and certain network functions that are carried out on different...
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Networking: A Beginner’s Guide Fifth Edition- P20 ppsx

Networking: A Beginner’s Guide Fifth Edition- P20 ppsx

... 79Chapter 7: Making WAN ConnectionsAnalyzing Requirements A company’s first WAN is usually driven by a particular application, such as an accounting system. Then once the WAN is operational, ... cloud. Packet-switched networks can be more reliable because the data can take many different paths, but you are not guaranteed that each packet will arrive in 77Chapter 7Making WAN Connections78 Networking: ... speeds, and other factors (including your location), so you need to rely heavily on cost and availability data from local providers for your own WAN analysis. Plus, prices and availability change...
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Networking: A Beginner’s Guide Fifth Edition- P21 pps

Networking: A Beginner’s Guide Fifth Edition- P21 pps

... rural areas.ADSLAs mentioned, ADSL can support up to 8 Mbps of receive data (also called downstream data) and up to 1 Mbps of send data (also called upstream data). In addition to the data ... symmetric, meaning that the available upstream bandwidth and downstream bandwidth are the same.N RADSL Rate-adaptive DSL (RADSL) allows for 600 Kbps to 12 Mbps of data to be received and 128 Kbps ... versa. Most remote access connections, particularly Internet connections, are asymmetrical. The emphasis is on being able to receive data rapidly, rather than on sending data rapidly.Because...
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Networking: A Beginner’s Guide Fifth Edition- P23 ppsx

Networking: A Beginner’s Guide Fifth Edition- P23 ppsx

... either a Class A or a Class B address, and then can handle a number of Class C addresses within its own address structure. Changing ISPs, even for a company that has a valid Class C address, means ... changing the company’s address from a Class C address available through the first ISP to a Class C address available from the new ISP.As mentioned earlier, the addresses 0, 127, and 255 are ... that might also be arriving at the same machine. Ports allow the receiving machine to direct arriving data appropriately. An example is a server that hosts web pages and also receives and processes...
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Networking: A Beginner’s Guide Fifth Edition- P28 ppsx

Networking: A Beginner’s Guide Fifth Edition- P28 ppsx

... of LDAP is that an organization can build a global directory structure using a feature called referral, where LDAP directory queries that are managed by a different LDAP server are transparently ... template for the directory and its entries. Classes are categories to which all entries are attached. Attributes are items of data that describe the classes, such as CN and OU. The syntax for ... the attributes specifies exactly how attributes are named and stored, and what sort of data they are allowed to contain (such as numbers, string text, dates and times, and so forth). Finally,...
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Networking: A Beginner’s Guide Fifth Edition- P32 ppsx

Networking: A Beginner’s Guide Fifth Edition- P32 ppsx

... to an SSL VPN, they are shown a home page that displays all of the connection options available to them, such as the example shown in Figure 10-8. The choices available to a remote user may ... that are managed might be hosted on Windows- or UNIX-based serversN Access to shared corporate applications that have been set up to work through the SSL VPN, such as an accounting systemN Access ... example, the user can select files in the left pane and can then choose to download, add to a download cart, view within the web browser, rename, or even delete files. The user can also manage...
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Networking: A Beginner’s Guide Fifth Edition- P40 pps

Networking: A Beginner’s Guide Fifth Edition- P40 pps

... data needs of all those users. Database servers might manage databases that are many gigabytes or terabytes in size, and they must be able to retrieve large chunks of data from their databases ... certain applications, having such a large number of processors can be an advantage. The Xeon processor family is packaged in a Single Edge Contact Cartridge, which is much larger than the packaging ... It’s far more important for a file and a print server to have a lot of random access memory (RAM) and a fast disk subsystem. Database servers, on the other hand, are processor-hungry and definitely...
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Networking: A Beginner’s Guide Fifth Edition- P48 pps

Networking: A Beginner’s Guide Fifth Edition- P48 pps

... and retransmissions as real data. In fact, the total amount of good data flowing over a saturated Ethernet network will be less than the amount flowing over a less-saturated network.You can ... impact of growth on the different parts of the network that you’ve already examined (applications, users, and services), because linear growth does not always mean a matching linear impact ... 10 arrays and online tape backup systems updating a backup tape every hour or for every transaction. Similarly, some companies might work with data that is so sensitive that they must install...
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