Business Data Communications

by Manish Agrawal

• ISBN13: 9780470483367
• ISBN10: 0470483369
• Format: Paperback
• Copyright: 2011-01-01
• Publisher: Wiley

Summary

Unlike other books in the field, Business Data Communications provides IT specialists with a very focused approach that shows how the concepts are relevant to their work. Unique content is presented on topics ranging from multiplexing, signaling, CRC, and CIDR to supporting technologies, subnetting, and 802.11n and 802.16. Numerous lab exercises are integrated throughout the pages to demonstrate how the material is applied. It also includes a companion Web site that enhances each chapter with relevant, easy-to-read research articles that IT specialists will appreciate.

Table of Contents

Introduction and layering

Professional implications

Business implications of networks

Technology milestones

Packetization

Layering

TCP/ IP model

OSI model

Principles of Internet protocols

Physical layer

Functions of the physical layer

Physical media and their properties

Signals and their properties

Multiplexing

Importance of binary signals

Binary counting

Signal representation of data

Data Link Layer

Ethernet overview

CSMA/ CD

Error detection and correction

Ethernet frame structure

Switches

Network Layer

Functions of network layer

Internet protocol (IP)

IP Header

IP Addresses

Binary numbers

CIDR notation

Transport Layer

Need for TCP

TCP functions

Segmentation

Reliability

Flow-control

Multiplexing

Connection establishment

TCP Header

UDP

Applications

Overview of the application layer

Overview of the Web

Overview of E-mail

Overview of FTP

Overview of SSH

Overview of IM

Support services

DHCP

Network address translation

Address resolution protocol

Domain Name System

Home networking

Subnetting

Routing

Routing

Route aggregation

WAN technologies

Virtual circuits

T carriers

Frame relay

ATM

MPLS

Wireless networks

Business role of wireless LANS (WLANs)

ISM frequency bands

802.11 - a/b/g/n - Wi-Fi

802.15 - Bluetooth Personal area networks

802.16 - WiMax

Telephony and cell phones

Circuit switching

Telephone network operation

Cell phone networks - 1G - 3G

CDMA

Network security

Common security concerns

Definition

Inbound security

Firewalls

DMZs

Authentication and authorization

Patching

Outbound security

Encryption, including TLS, WEP, WPA

Standards and legal issues

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