Networking: A Beginner’s Guide Fifth Edition- P17 doc
Networking: A Beginner’s Guide Fifth Edition- P17 doc
... This area is continuing to evolve very rapidly, and a solution purchased today
may not be compatible with equivalent hardware available in a couple of years.
Chapter Summary
In this chapter, ... equipment transmits its information through the
power wiring, and all that’s needed is to plug a special adapter into an available outlet
near each computer.
Be aware that powerline networks...
Networking: A Beginner’s Guide Fifth Edition- P9 doc
... are usually accomplished with a stand-alone computer—called
a gateway server—that handles the e-mail interface between the two systems, by using
gateway software that is part of the file-based ... server-based applications that are
packaged together to make them more economical for smaller companies.
N Use mailboxes from a service provider that runs a high-end e-mail system (and
h...
Networking: A Beginner’s Guide Fifth Edition- P10 docx
... physical layer so the
network layer (layer 3) can transmit its data. The data-link layer typically includes error
detection and correction to ensure a reliable data stream. The data elements carried ... part of the physical layer.
Data-Link Layer
The data-link layer, layer 2, defines standards that assign meaning to the bits carried by
the physical layer. It establishes a reliable prot...
Networking: A Beginner’s Guide Fifth Edition- P14 docx
... guessed it a much
thicker coaxial cable called RG-8. Figure 4-6 shows an example of coaxial cable.
Fiber-optic cable uses a glass strand and carries the data signals as light instead of
electricity. ...
using connectors and patch cables that also meet that level of performance. For
example, for a Cat-5 installation, you must have Cat-5 cable, connectors, patch panels,
and patch cabl...
Networking: A Beginner’s Guide Fifth Edition- P22 docx
... model, the
application layer.
Network layer units of data, such as those carried by IP, are called datagrams.
Units of data carried at the data-link layer (layer 1) are called frames.
All of these ... than IP, at the transport layer. TCP manages
connections between computers. TCP messages are carried (encapsulated) in IP
datagrams.
The User Datagram Protocol (UDP) serves the same role as...
Networking: A Beginner’s Guide Fifth Edition- P25 doc
... Usenet reader (also called a news reader) and a Usenet server. It also provides for message
formatting, so messages can be text-based or can also contain binary attachments. Binary
attachments ... just as data
packets do over the Internet. Also, available circuits would be used more efficiently,
allowing more calls to be routed within a particular geographic area.
VoIP also has some...
Networking: A Beginner’s Guide Fifth Edition- P38 doc
... time is available to make the backup? Make sure that you avoid
situations where you need to back up terabytes of data using a system that can
handle only megabytes per hour.
N If a partial or ...
cost/MB
170
Networking: A Beginner’s Guide
N Protect against backup media failure
N Protect the data from an environmental failure, such as a fire, that destroys the
original system...
Networking: A Beginner’s Guide Fifth Edition- P45 doc
... them. And if a computer does not, then it can be added as a network
interface card.
NICs are also usually specific to the cable media you have installed. For example,
Ethernet NICs are available ... dialog box in Windows Vista
203
Chapter 14: Purchasing and Managing Client Computers
You can also improve serviceability if you standardize on a particular manufacturer
because then you...
Networking: A Beginner’s Guide Fifth Edition- P51 docx
... You are asked whether to perform an upgrade installation or a custom (clean)
installation of Windows Server 2008, as shown in Figure 16-5. If you are
installing on a computer that has an upgradable ... log in.
12. After you set your password and log in, you will soon see the new server’s
desktop, along with the Initial Configuration Tasks window (which appears
automatically), as show...
Networking: A Beginner’s Guide Fifth Edition- P53 docx
... checkbox. You can
choose any combination of roles that you need, and the wizard will walk you through
any necessary additional setup with a minimum of hassle. In this example, we are
installing Windows ... networking
246
Networking: A Beginner’s Guide
CAUTION Join an existing forest only if you are the network administrator responsible for the
existing Active Directory forest, a...