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SOLUTION MANUAL
For
Business Data Communications and
Networking14th Edition
N
by Jerry FitzGerald
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CHAPTER 1
INTRODUCTION TO DATA COMMUNICATIONS
Chapter Summary
This chapter introduces the students to the concept of data communications in business. It
describes why it is important to study data communications and introduces you to the three
fundamental questions that this book answers. Next, it discusses the basic types and components
of a data communication network. Also, it examines the importance of a network model based on
layers. Finally, it describes the three key trends in the future of networking and the importance of
cyber security.
N
Learning Objectives
U
• Be aware of the three fundamental questions this book answers
• Be aware of the applications of data communications networks
• Be aware of how data communications fit within the discipline of MIS
•
R
Be familiar with the major components of and types of networks
• Understand the role of network layers
• Be familiar with the role of network standards
•
SE
Be aware of cyber security issues
• Be aware of three key trends in communications and networking
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C
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Key Terms
American National Standards Institute Internetwork layers
(ANSI) Intranet
Application layer Layers
Attacks Local area network (LAN)
Backbone network (BN) Mail server
Bring Your On Device (BYOD) Native apps
Browser-based Network of Things (NoT)
Cable Network layer
N
Circuit Open Systems Interconnection Reference
Client model (OSI model)
Cyber security Peer-to-peer networks
Data link layer Physical layer
U
Extranet Protocol
File server Protocol Data Unit (PDU)
Hardware layer Protocol stack
R
Institute of Electrical and Electronics Request for Comment (RFC)
Engineers (IEEE) Router
International Telecommunications Union- Server
SE
Telecommunications Group (ITU-T) Standards
Internet Engineering Task Force (IETF) Switch
Internet model Transport layer
Internet of Things (IoT) Web server
Internet service provider (ISP) Wide area networks (WAN)
Wireless access point
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Chapter Outline
1.1 Introduction
1.2 Data Communications Networks
1.2.1 Components of a Network
1.2.2 Types of Networks
1.3 Network Models
1.3.1 Open Systems Interconnection Reference Model
1.3.2 Internet Model
1.3.3 Message Transmission Using Layers
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1.4 Network Standards
1.4.1 The Importance of Standards
1.4.2 The Standards-Making Process
1.4.3 Common Standards
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1.5 Future Trends
1.5.1 Wireless LAN and BYOD
1.5.2 The Internet of Things
R
1.5.3 Massively Online
1.6 Implications for Cyber Security
Summary
SE
D
O
C
S
lkjhfgds
SOLUTION MANUAL
For
Business Data Communications and
Networking14th Edition
N
by Jerry FitzGerald
U
R
SE
D
O
C
S
lkjhfgds
, kljhgfds
CHAPTER 1
INTRODUCTION TO DATA COMMUNICATIONS
Chapter Summary
This chapter introduces the students to the concept of data communications in business. It
describes why it is important to study data communications and introduces you to the three
fundamental questions that this book answers. Next, it discusses the basic types and components
of a data communication network. Also, it examines the importance of a network model based on
layers. Finally, it describes the three key trends in the future of networking and the importance of
cyber security.
N
Learning Objectives
U
• Be aware of the three fundamental questions this book answers
• Be aware of the applications of data communications networks
• Be aware of how data communications fit within the discipline of MIS
•
R
Be familiar with the major components of and types of networks
• Understand the role of network layers
• Be familiar with the role of network standards
•
SE
Be aware of cyber security issues
• Be aware of three key trends in communications and networking
D
O
C
S
lkjhfgds
, kljhgfds
Key Terms
American National Standards Institute Internetwork layers
(ANSI) Intranet
Application layer Layers
Attacks Local area network (LAN)
Backbone network (BN) Mail server
Bring Your On Device (BYOD) Native apps
Browser-based Network of Things (NoT)
Cable Network layer
N
Circuit Open Systems Interconnection Reference
Client model (OSI model)
Cyber security Peer-to-peer networks
Data link layer Physical layer
U
Extranet Protocol
File server Protocol Data Unit (PDU)
Hardware layer Protocol stack
R
Institute of Electrical and Electronics Request for Comment (RFC)
Engineers (IEEE) Router
International Telecommunications Union- Server
SE
Telecommunications Group (ITU-T) Standards
Internet Engineering Task Force (IETF) Switch
Internet model Transport layer
Internet of Things (IoT) Web server
Internet service provider (ISP) Wide area networks (WAN)
Wireless access point
D
O
C
S
lkjhfgds
, kljhgfds
Chapter Outline
1.1 Introduction
1.2 Data Communications Networks
1.2.1 Components of a Network
1.2.2 Types of Networks
1.3 Network Models
1.3.1 Open Systems Interconnection Reference Model
1.3.2 Internet Model
1.3.3 Message Transmission Using Layers
N
1.4 Network Standards
1.4.1 The Importance of Standards
1.4.2 The Standards-Making Process
1.4.3 Common Standards
U
1.5 Future Trends
1.5.1 Wireless LAN and BYOD
1.5.2 The Internet of Things
R
1.5.3 Massively Online
1.6 Implications for Cyber Security
Summary
SE
D
O
C
S
lkjhfgds
