MCSE Training Guide: Networking Essentials, Second
Edition is designed for advanced end-users, service technicians,
and network administrators with the goal of
certification as a Microsoft Certified Systems Engineer
(MCSE). The “Networking Essentials” exam (70-058)
measures your ability to implement, administer, and
troubleshoot information systems that incorporate
Windows 95 as well as any of the BackOffice family of
products. According to Microsoft, the exam covers only
the networking knowledge and skills common to both
Windows 95 and BackOffice products....
Networks are currently one of the fastest growing and most important developments in
the computer industry. Not only are more and more PCs becoming parts of networks, but
networked PCs are being incorporated into larger enterprise-wide applications so that everyone
in a company can access and share data.
With the expanding technology of networking comes the terminology to describe it.
Dictionary of Networking
provides definitions for all the terms you will encounter
when dealing with networks of any type....
"Network and system security" provides focused coverage of network and system security technologies. It explores practical solutions to a wide range of network and systems security issues. Chapters are authored by leading experts in the field and address the immediate and long-term challenges in the authors’ respective areas of expertise. Coverage includes building a secure organization, cryptography, system intrusion, UNIX and Linux security, Internet security, intranet security, LAN security; wireless network security, cellular network security, RFID security, and more.
This document provides design considerations and guidelines for implementing Cisco Quality of Service
within an enterprise environment.
This document is the second major update to the design guidelines and information presented in the
Cisco AVVID Network Infrastructure Enterprise Quality of Service Design Solutions Reference Network
Design (August, 2002).
This document assumes that you are already familiar with Quality of Service terms and concepts. If you
want to review any of those terms and concepts, refer to Cisco Quality of Service documentation at:...
The Internet is now a household term in many countries. With otherwise serious people beginning to joyride
along the Information Superhighway, computer networking seems to be moving toward the status of TV sets and
microwave ovens. The Internet has unusually high media coverage, and social science majors are descending on
Usenet newsgroups, online virtual reality environments, and the Web to conduct research on the new "Internet
This document provides design considerations and guidelines for implementing Cisco IP Telephony
solutions based on the Cisco Architecture for Voice, Video, and Integrated Data (AVVID).
This document is primarily an update of the design guidelines and information presented in the Cisco IP
Telephony Solution Reference Network Design (SRND) for Cisco CallManager releases 3.1 and 3.2,
which is available online at
This document assumes that you are already familiar with the terms and concepts presented in previous
versions of the Cisco IP Telephony SRND.
Chapter 1 targets the following objectives in the Standards and Terminology section of the Networking Essentials exam:
Compare a client/server network with a peer-topeer network.
. This objective makes sure you are familiar with the two main network classiﬁcation models.
Deﬁne common networking terms for LANs and WANs.
. The purpose of this objective is to make sure people working in the networking ﬁeld understand the difference between a local area network (LAN) and a wide area network (WAN). These terms are the main topics of discussion throughout this chapter.
Value is a concept that many equipment vendors talk about, especially when the subject concerns T1
service delivery equipment. But unlike some companies that just talk about value in shallow market-
ing terms or catch phrases, ADC Telecommunications demonstrates true value – manifest and
validated in actual cost savings and performance efficiencies in carrier operations. To experience this
value, however, carriers must take a fundamentally different approach to the way they deliver T1
Consider the spontaneous emission term describing the contribution of the spontaneous emission to the laser oscillation, which appears as the final term on the right-hand side of the rate equation for the photon density (Eq. (6.21)). Since this term represents the component of the spontaneous emission belonging to the same mode as the laser oscillation (angular frequency !m), it is closely related to the gain for the oscillation mode. Consider a laser of index-guiding type, and let E ¼ E(r) ¼ E(x, y)E(z) be the complex electric field of the oscillation mode. ...
Access Control: Mechanism(s) used to restrict access to an object.
ACL Access Control List. A list of resources and the
permissions or authorizations allowed.
Active Code/Active Content: Generic term for software delivered via the world Wide
Web that executes directly on the user's computer.
Alert: A formatted message describing a circumstance relevant
to network security. Alerts are often derived from critical
This chapter offers a brief introduction to networking and some basic networking terms
and concepts. This material should be a review of many already known concepts. You
should be familiar with the various networking topologies used in networks, as well as
different types of networks, such as local area networks (LANs) and wide area networks (WANs).
Internetworking continues to be one of the fastest developing high-technology fields today. Businesses and individuals have come to depend on the Internet for completing a wide range of their daily operations and activities. It is no secret that Cisco Systems has capitalized on the Internet’s potential, doing many of their business operations and functions across the Web, including over 85% of their annual sales transactions across the Internet. For these reasons, the World Wide Web and the field of internetworking continue to grow at accelerated speeds.
A short term solution to the problem of the depletion of IP addresses
Long term solution is IP v6 (or whatever is finally agreed on)
CIDR (Classless InterDomain Routing ) is a possible short term solution
NAT is another
NAT is a way to conserve IP addresses
Hide a number of hosts behind a single IP address
192.168.0.0-192.168.255.255 for local networks
A Connector is a device used to provide a semi-permanent link between two optical fibers. Connectors must be able to maintain good optical contact between the fibers at the connector interfaces. In theory, only the cross sectional face of the two fibers need to touch, hence the term Physical Contact (PC) connector is used.
The basic components of a connector include the body, the ferrule, the barrel (coupling nut/insert), and the boot. The body is the physical shell of the connector, which houses the mechanism used to secure the fiber to the connector.
The performance of current transport systems is inadequate when viewed in
terms of economic efficiency, sustainability, and safety. Towards Better Performing
Transport Networks examines the tools that are necessary to effectively
measure these systems and those that are required to improve them.
Utilising advanced tools of network analysis, the contributors challenge
various pieces of conventional wisdom and in particular the view that intermodal
transport is more environmentally benign than road transport.
Cisco Systems, Inc., the worldwide leader
in networking for the Internet, has
prepared this guide to make networking
easier for your campus or district. If
you’re new to networking, it’s an ideal
introduction, starting with the most basic of components and helping you pinpoint the
best technologies and design for your network. If you already know your networking
ABCs, look to this guide for straightforward explanations of key terms and concepts to
keep building your knowledge base.
The first piece of hardware that I want to discuss is a network adapter. There are many different names for network adapters, including network cards, Network Interface Cards, NICs. These are all generic terms for the same piece of hardware. A network card’s job is to physically attach a computer to a network, so that the computer can participate in network communications.