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Lesson 1
Windows Server 2003 and the Network Infrastructure
1-9
Implementing a Network Infrastructure
The process of implementing the technologies outlined in a network
infrastructure
plan typically involves a number of disciplines. Tasks such as the
installation of net-
work cables, for example, are frequently delegated to outside contractors
that special-
ize in that type of work. The installation of operating systems and other
software
components is also part of the implementation process, but this is not a
primary focus
of the 70-293 exam.
The elements of the implementation process that are covered in the 70-293
exam focus
largely on the selection of protocols, operating systems, applications, and
security
mechanisms that satisfy the requirements of a network’s owners,
administrators, and
users, as determined in the planning process. The exam also covers the
process of
deploying technologies such as the TCP/IP protocols, the DNS and WINS
name-reso-
lution mechanisms, and the IPSec protocol extensions. These deployments
include
tasks such as selecting the IP addresses and subnet mask that the computers
on a net-
work will use, designing a DNS namespace, and creating IPsec policies that
ensure the
security of communications between specific users or systems.
As a rule, the 70-293 exam focuses on the deployment of these technologies
on a
medium-to-large network, and it concentrates more on the organizational
elements of
the deployment than on the process of configuring an individual computer.
For exam-
ple, the exam is more concerned with the process of creating a DNS namespace
suit-
able for a large organization than the installation and configuration of the
DNS server
application on a single computer running Windows Server 2003.
Maintaining a Network Infrastructure
The completion of the network planning and implementation processes is not
the end
of the professional’s concern for the network infrastructure. To maintain
the network
properly, administrators must have an intimate knowledge of the
infrastructure and the
technologies used to implement it. Network infrastructure maintenance
includes such
tasks as updating operating systems and applications, monitoring ongoing
processes,
and troubleshooting problems.
Keeping the network’s operating systems and applications updated is more
compli-
cated than simply downloading the latest patch releases and installing them
on all the
computers. For a large and complex network infrastructure, you must be
careful to test
each release before deploying it on the production network. This entails
using a lab
network to develop an update-release test plan so that you can run the
updates in a
protected environment before installing them throughout the enterprise. To
build a lab
network that adequately duplicates the real network, familiarity with the
network’s
infrastructure is essential.
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