Networking: A Beginner’s Guide Fifth Edition- P22 docx
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- 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- 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...
Networking: A Beginner’s Guide Fifth Edition- P64 docx
... recommends that each domain controller
also act as a DNS server, and you must have at least one primary and secondary DNS
server for each managed zone.
Understanding RRAS
Routing and Remote Access ... DNS Manager window.
When you set up DNS for an organization, you first establish a root namespace
(a virtual location in which domain names are stored), usually using the domain name...
Networking: A Beginner’s Guide Fifth Edition- P70 docx
... Command-Line Basics
Historically, the aspect of UNIX that makes it so powerful and flexible has been the
options available through the command line. Casual observers of UNIX gurus are often
astounded ... 331
Chapter 21: Introduction to Linux Systems Administration
to IP addresses, and vice versa. Many times, the appropriate DNS servers to use are
automatically assigned through the ...
ast...
Networking: A Beginner’s Guide Fifth Edition- P71 docx
... embed commands as parameters to other commands.
A common instance of the use of this character is to pass a number sitting in a file as a
parameter to the kill command. A typical instance of ... Environment Variables
To set an environment variable, use the following format:
[root@ford /root]# variable=value
where variable is the variable name, and value is the value that you want t...
Networking: A Beginner’s Guide Fifth Edition- P88 docx
... Directory Access Protocol
data channels (D-channels), 82
data communications equipment (DCE), 50
data corruption, 172
data terminal equipment (DTE), 50
data transfer, synchronous, 79
database
client/server, ... 167
datagram, 90
data-link layer, 30
DCE. See data communications equipment
D-channels. See data channels
dd command, 344, 344
decimal numbering system, 12, 13–14
decimal points, 13
de...
Networking, A Beginner''''s Guide, Fifth Edition (Networking Professional''''s Library) ppt
... on. A NIC, for
example, is 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 ... 28
Physical Layer 30
Data-Link Layer 30
Network Layer 30
Transport Layer 31
Session Layer 31
Presentation Layer 31
Application Layer 32
Understanding How Data Travels
Through the OSI Layers...
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