Local Area Network(LAN)

Size: px
Start display at page:

Download "Local Area Network(LAN)"

Transcription

1 Local Area Network(LAN) A local area network (LAN) is a computer network that interconnects computers within a limited area. Example: a residence, school, laboratory, university campus,office building etc. Ethernet and Wi-Fi are the two most common technologies in use for local area networks.

2

3 Ethernet Ethernet is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks(wan). It was commercially introduced in 1980 and first standardized in 1983 as IEEE It supports higher bit rates and longer link distances. Over time, Ethernet has largely replaced competing wired LAN technologies such as token ring, FDDI and ARCNET.

4 . Systems communicating over Ethernet divide a stream of data into shorter pieces called frames. Each frame contains source and destination addresses, and error-checking data so that damaged frames can be detected and discarded. As per the OSI model, Ethernet provides services up to and including the data link layer. The original Ethernet uses coaxial cable as a shared medium, while the newer Ethernet variants use twisted pair and fiber optic links in conjunction with hubs or switches. Ethernet data transfer rates vary from the original 2.94 Mbits/s to the latest 400 Gbits/s.

5 Virtual LAN A virtual local area network (VLAN) is a logical group of workstations, servers and network devices that appear to be on the same LAN despite their geographical distribution. A VLAN allows a network of computers and users to communicate in a simulated environment as if they exist in a single LAN and are sharing a single broadcast and multicast domain. VLANs are implemented to achieve scalability, security and ease of network management. They can quickly adapt to changes in network requirements and relocation of workstations and server nodes. Higher-end switches allow the functionality and implementation of VLANs. The purpose of implementing a VLAN is to improve the performance of a network or apply appropriate security features.

6 .

7 . The key benefits of implementing VLANs include: Allowing network administrators to apply additional security to network communication Making expansion and relocation of a network or a network device easier Decreasing the latency and traffic load on the network and the network devices, offering increased performance

8 . VLANs also have some limitations as listed below: High risk of virus issues because one infected system may spread a virus through the whole logical network. Equipment limitations in very large networks because additional routers might be needed to control the workload More effective at controlling latency than a WAN, but less efficient than a LAN

9 A Token Ring network A token ring network is a local area network (LAN) topology where nodes/stations are arranged in a ring topology. Data passes sequentially between nodes on the network until it returns to the source station. To prevent congestion and collision, a token ring topology uses a token to ensure that only one node/station on the line is allowed to transmit at a time. A token ring LAN is physically wired as a star topology but configured as a ring topology. The token ring LAN system was standardized by the Institute of Electrical and Electronics Engineers as IEEE

10 .

11 .

12 . The token ring LAN process undergoes following sequence of events: A token continually circulates inside the token ring LAN To transmit a message, a node inserts a message and destination address inside an empty token. The token is examined by each successive node. The destination node copies the message data and returns the token to the source with the source address and a data receipt message. The source receives the returned token, verifies copied and received data and empties the token. The empty token now changes to circulation mode, and the process continues.

13 Fiber Distributed Data Interface.(FDDI) FDDI is a set of ANSI and ISO standards for data transmission on fiber optic lines in a local area network (LAN) that can extend in range up to 200 km (124 miles). The FDDI protocol is based on the token ring protocol. In addition to being large geographically, an FDDI local area network can support thousands of users. FDDI is frequently used on the backbone for a wide area network (WAN).

14 . A FDDI network contains two rings, one as a secondary backup in case the primary ring fails. The primary ring offers up to 100 Mbit/s capacity. When a network has no requirement for the secondary ring to do backup, it can also carry data, extending capacity to 200 Mbit/s.

15 Metropolitan Area Network A metropolitan area network (MAN) is similar to a LAN but spans an entire city or campus. MANs are formed by connecting multiple LANs. Thus, MANs are larger than LANs but smaller than wide area networks (WAN). MANs are extremely efficient and provide fast communication via high-speed carriers, such as fiber optic cables.

16 .

17 Distributed Queue Dual Bus ( DQDB ) IEEE defined a MAN standard for covering an entire city. This was called Distributed Queue Data Interface (DQDB) and put up as IEEE standard It is a distributed multi-access network that : (i) supports integrated communications using a dual bus and distributed queuing (ii) provides access to LAN and MAN networks (iii) supports connectionless data transfer, connectionoriented data transfer, and voice communications.

18 A wide area network (WAN) A WAN is a telecommunications network that extends over a large geographical distance. WAN is a computer networking technology used to transmit data over long distances, and between different LANs and MANs. WANs are often established with leased telecommunication circuits. Business, education and government entities use WAN to relay data to staff, students, clients, buyers, and suppliers from various locations across the world. In essence, this mode of telecommunication allows a business to effectively carry out its daily function regardless of location. The Internet may be considered a WAN. Typically, TCP/IP is the protocol used for a WAN in combination with devices such as routers, switches, firewalls and modems.

19 Switched Multimegabit Data Service(SMDS) Switched Multimegabit Data Service is a wide area networking (WAN) service designed for LAN interconnection through the public telephone network. SMDS is a connectionless service. It is a switching service that provides data transmission in the range between 1.54 Mbit/s to 45 Mbit/s

20

21

LANs do not normally operate in isolation. They are connected to one another or to the Internet. To connect LANs, connecting devices are needed.

LANs do not normally operate in isolation. They are connected to one another or to the Internet. To connect LANs, connecting devices are needed. LAN interconnecting devices INTRODUCTION LANs do not normally operate in isolation. They are connected to one another or to the Internet. To connect LANs, connecting devices are needed. Connecting devices

More information

M242 COMPUTER NETWORS AND SECURITY

M242 COMPUTER NETWORS AND SECURITY M242 COMPUTER NETWORS AND SECURITY 2.1. Network Models: UNIT - II OSI MODEL AND LAN PROTOCOLS 1. Explain Network model A network is a combination of hardware and software that sends data from one location

More information

Data Communication. Introduction of Communication. Data Communication. Elements of Data Communication (Communication Model)

Data Communication. Introduction of Communication. Data Communication. Elements of Data Communication (Communication Model) Data Communication Introduction of Communication The need to communicate is part of man s inherent being. Since the beginning of time the human race has communicated using different techniques and methods.

More information

COMPUTER NETWORKING. By: Dr. Noor Dayana Abd Halim

COMPUTER NETWORKING. By: Dr. Noor Dayana Abd Halim COMPUTER NETWORKING By: Dr. Noor Dayana Abd Halim Defining Computer Network Computer network is a collection of computers and other hardware devices so that network users can share hardware, software,

More information

Introduction to Computer Networks INTRODUCTION TO COMPUTER NETWORKS

Introduction to Computer Networks INTRODUCTION TO COMPUTER NETWORKS INTRODUCTION TO COMPUTER NETWORKS Computer Networks Computer network connects two or more autonomous computers. The computers can be geographically located anywhere. LAN, MAN & WAN Network in small geographical

More information

Communication Networks - 3 general areas: data communications, networking, protocols

Communication Networks - 3 general areas: data communications, networking, protocols Communication Networks - Overview CSE 3213 Fall 2011 1 7 September 2011 Course Content 3 general areas: data communications, networking, protocols 1. Data communications: basic concepts of digital communications

More information

KIBABII UNIVERSITY COLLEGE DEPARTMENT COMPUTER SCIENCE & IT ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO QUESTIONS IN SECTION B

KIBABII UNIVERSITY COLLEGE DEPARTMENT COMPUTER SCIENCE & IT ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO QUESTIONS IN SECTION B KIBABII UNIVERSITY COLLEGE DEPARTMENT COMPUTER SCIENCE & IT TITLE: DATACOMMUNICATION COURSE CODE: 223 SECTION A: 30 Marks ANSWER ALL QUESTIONS IN SECTION A AND ANY TWO QUESTIONS IN SECTION B TIME ALLOWED:

More information

COMPUTER NETWORK. PBL(1)

COMPUTER NETWORK. PBL(1) COMPUTER NETWORK. PBL(1) BY : MUSTAFA H.NABBOUS NO : 1644 LIBYAN INTERNATIONAL MEDICAL UNIVERSITY FACULTY OF INFORMATION TECHNOLOGY LEARNING OBJECTIVES: WHAT IS COMPUTER NETWORK AND HOW IT WORKS? WHAT

More information

Introduction to LAN Protocols

Introduction to LAN Protocols CHAPTER 2 Introduction to LAN Protocols This chapter introduces the various media-access methods, transmission methods, topologies, and devices used in a local area network (LAN). Topics addressed focus

More information

Chapter 16 Networking

Chapter 16 Networking Chapter 16 Networking Outline 16.1 Introduction 16.2 Network Topology 16.3 Network Types 16.4 TCP/IP Protocol Stack 16.5 Application Layer 16.5.1 Hypertext Transfer Protocol (HTTP) 16.5.2 File Transfer

More information

IT 2004 Data Communication & Networking

IT 2004 Data Communication & Networking IT 2004 Data Communication & Networking Week 4 Network Topology, Architecture & Access Methods P.G.R Nayomi Gamlath MSc(Pdn), BSc (Rajarata) ATI -Kurunegala Why networks? To share resources (such as printer,

More information

COMPONENTS OF DATA COMMUNICATION

COMPONENTS OF DATA COMMUNICATION COMPONENTS OF DATA COMMUNICATION ANALOG AND DIGITAL TRANSMISSION An analog signal is one that is continuous with respect to time and may take on any value within a given range of values. Eg Human voice.

More information

COMPUTER TECHNIQUE. ( Vocational Stream ) Paper : V. ( Computer Network ) ( Theory )

COMPUTER TECHNIQUE. ( Vocational Stream ) Paper : V. ( Computer Network ) ( Theory ) Total No. of Printed Pages 12 HS/XII/V/CT/Paper V/14 2 0 1 4 COMPUTER TECHNIQUE ( Vocational Stream ) Paper : V ( Computer Network ) ( Theory ) Full Marks : 100 Time : 3 hours The figures in the margin

More information

Network Topologies & LAN,MAN and WAN. By: Mr. Binesh Kr. Singh. What is Topology

Network Topologies & LAN,MAN and WAN. By: Mr. Binesh Kr. Singh. What is Topology http://bineshsingh.yolasite.com Network Topologies & LAN,MAN and WAN By: Mr. Binesh Kr. Singh What is Topology NW Topology Defines how various computers or nodes they are connected to each other Or It

More information

Types of Computer Networks. ICS 614: Computer Networks Concepts and Principles 11

Types of Computer Networks. ICS 614: Computer Networks Concepts and Principles 11 Types of Computer Networks ICS 614: Computer Networks Concepts and Principles 11 Types of networks Networks are categorized by distribution, size, and architecture. A network can be as simple as a single

More information

Different network topologies

Different network topologies Network Topology Network topology is the arrangement of the various elements of a communication network. It is the topological structure of a network and may be depicted physically or logically. Physical

More information

INTRODUCTION TO ICT.

INTRODUCTION TO ICT. INTRODUCTION TO ICT. (Introducing Basic Network Concepts) Lecture # 24-25 By: M.Nadeem Akhtar. Department of CS & IT. URL: https://sites.google.com/site/nadeemcsuoliict/home/lectures 1 INTRODUCTION TO

More information

Dr./ Ahmed Mohamed Rabie Sayed

Dr./ Ahmed Mohamed Rabie Sayed 1 Dr./ Ahmed Mohamed Rabie Sayed 2 A network is a group of two or more computer systems linked together to exchange data and share resources, including expensive peripherals. 3 A local area network (LAN)

More information

DATA SECURITY MANAGEMENT. Chris Hare INSIDE. What is a Network? Network Devices; Hubs; Repeaters; Bridges; Routers; Switches; Network

DATA SECURITY MANAGEMENT. Chris Hare INSIDE. What is a Network? Network Devices; Hubs; Repeaters; Bridges; Routers; Switches; Network 87-01-01 DATA SECURITY MANAGEMENT NETWORK TECHNOLOGIES FOR INFORMATION SECURITY PRACTITIONERS: PART 1 Chris Hare INSIDE What is a Network? Network Devices; Hubs; Repeaters; Bridges; Routers; Switches;

More information

Brief Summary of the Chapter: CHAPTER 1 NETWORKING AND OPEN STANDARDS In this chapter we are going to study about computer Networks, associated terminology and related concept along with network devices.

More information

Area Covered is small Area covered is large. Data transfer rate is high Data transfer rate is low

Area Covered is small Area covered is large. Data transfer rate is high Data transfer rate is low Chapter 15 Networking Concepts 1. Define networking. It is the interconnection of independent computing devices for sharing of information over shared medium. 2. What is the need for networking? / What

More information

TYPES OF COMPUTER NETWORKS

TYPES OF COMPUTER NETWORKS TYPES OF COMPUTER NETWORKS What is a Network? A network consists of two or more computers that are linked in order to share resources (such as printers and CDs), exchange files, or allow electronic communications.

More information

CHAPTER 8 NETWORKS: COMMUNICATING AND SHARING RESOURCES

CHAPTER 8 NETWORKS: COMMUNICATING AND SHARING RESOURCES CHAPTER 8 NETWORKS: COMMUNICATING AND SHARING RESOURCES This chapter focuses on the fundamentals of computer networking. As students continue on their journey toward computer fluency, they will need to

More information

Integrating Information Systems: Technology, Strategy, and Organizational Factors

Integrating Information Systems: Technology, Strategy, and Organizational Factors MASSACHUSETTS INSTITUTE OF TECHNOLOGY SLOAN SCHOOL OF MANAGEMENT 15.565 Integrating Information Systems: Technology, Strategy, and Organizational Factors 15.578 Global Information Systems: Communications

More information

Discovering Computers Chapter 9 Communications and Networks

Discovering Computers Chapter 9 Communications and Networks Discovering Computers 2009 Chapter 9 Communications and Networks Chapter 9 Objectives Discuss the components required for successful communications Identify various sending and receiving devices Describe

More information

Types of Computer Networks and their Topologies Three important groups of computer networks: LAN, MAN, WAN

Types of Computer Networks and their Topologies Three important groups of computer networks: LAN, MAN, WAN Types of Computer and their Topologies Three important groups of computer networks: LAN, MAN, WAN LAN (Local Area ) 1 MAN (Metropolitan Area ) 2 WAN (Wide Area ) 3 Problems to be discussed when presenting

More information

Introduction to Computer Science (I1100) Networks. Chapter 6

Introduction to Computer Science (I1100) Networks. Chapter 6 Networks Chapter 6 501 Outline How does Networks and Internet Work? Networking devices Physical Network topology Types of Network Intranets - extranets Copper Media IP Address 502 How does Networks and

More information

Navpreet Singh INTRODUCTION TO COMPUTER NETWORKS. Computer Centre Indian Institute of Technology Kanpur Kanpur INDIA

Navpreet Singh INTRODUCTION TO COMPUTER NETWORKS. Computer Centre Indian Institute of Technology Kanpur Kanpur INDIA INTRODUCTION TO COMPUTER NETWORKS Navpreet Singh Computer Centre Indian Institute of Technology Kanpur Kanpur INDIA (Ph : 2597371, Email : navi@iitk.ac.in) About Myself About Myself I am Network Manager

More information

A LAN is a high-speed data network that covers a relatively small geographic area. It typically connects workstations, personal computers, printers,

A LAN is a high-speed data network that covers a relatively small geographic area. It typically connects workstations, personal computers, printers, CBCN4103 A LAN is a high-speed data network that covers a relatively small geographic area. It typically connects workstations, personal computers, printers, servers, and other devices. LANs offer computer

More information

CEN 444 Computer networks

CEN 444 Computer networks CEN 444 Computer networks Associate-Professor: Mohamed M. Abd-Eldayem Dept. of Comp. Engineering College of Computer and Information Sciences (CCIS) King Saud University Email: mdayem@ksu.edu.sa Chapter

More information

Prepared by Agha Mohammad Haidari Network Manager ICT Directorate Ministry of Communication & IT

Prepared by Agha Mohammad Haidari Network Manager ICT Directorate Ministry of Communication & IT Network Basics Prepared by Agha Mohammad Haidari Network Manager ICT Directorate Ministry of Communication & IT E-mail :Agha.m@mcit.gov.af Cell:0700148122 After this lesson,you will be able to : Define

More information

CHAPTER 2 - NETWORK DEVICES

CHAPTER 2 - NETWORK DEVICES CHAPTER 2 - NETWORK DEVICES TRUE/FALSE 1. Repeaters can reformat, resize, or otherwise manipulate the data packet. F PTS: 1 REF: 30 2. Because active hubs have multiple inbound and outbound connections,

More information

Computer Networks and Internet

Computer Networks and Internet Computer Networks and Internet Objectives Computer Networks Internet 2 Computer Networks Introducing Computer Networks A computer network consists of two or more computers linked together to exchange data

More information

Lecture #25: Networks and Communications. Communication and Networks. What will we learn?

Lecture #25: Networks and Communications. Communication and Networks. What will we learn? Lecture #25: Networks and Communications Communication and Networks What will we learn? How a communications system works What a network is What networks used for What network operating systems do What

More information

Netwoking Essentials

Netwoking Essentials Mark Sportack Walter J. Glenn Sams' Teach Yourself MCSE Netwoking Essentials SAMS PUBLISHING IN 14 DAYS Sams Publishing is an independant entity from Microsoft Corporation, and not affiliated with Microsoft

More information

CCNA Exploration1 Chapter 7: OSI Data Link Layer

CCNA Exploration1 Chapter 7: OSI Data Link Layer CCNA Exploration1 Chapter 7: OSI Data Link Layer LOCAL CISCO ACADEMY ELSYS TU INSTRUCTOR: STELA STEFANOVA 1 Explain the role of Data Link layer protocols in data transmission; Objectives Describe how the

More information

VISUAL SUMMARY COMMUNICATION CHANNELS COMMUNICATIONS. Communications and Networks

VISUAL SUMMARY COMMUNICATION CHANNELS COMMUNICATIONS. Communications and Networks Rev.Confirming Pages VISUAL SUMMARY Communications and Networks COMMUNICATIONS COMMUNICATION CHANNELS Communications is the process of sharing data, programs, and information between two or more computers.

More information

Computers Are Your Future

Computers Are Your Future Computers Are Your Future Networks: Communicating and Sharing Resources. Network Fundamentals What You Will Learn About Basic networking concepts Advantages and disadvantages of networks Peer-to-peer and

More information

Class X Subject : IT (Vocational) Chapter -1 Ouestion / Answer

Class X Subject : IT (Vocational) Chapter -1 Ouestion / Answer Class X Subject : IT (Vocational) Chapter -1 Ouestion / Answer Q1 What is a computer network? A computer network, often simply referred to as a network, is a collection of computers and other hardware

More information

Computer Networks. Lecture 8 Local Area Network, IEEE 802.x

Computer Networks. Lecture 8 Local Area Network, IEEE 802.x Computer Networks Lecture 8 Local Area Network, IEEE 802.x Local area network A local area network (LAN) is a computer network that interconnects computers within a limited area such as a home, school,

More information

It is the process of sharing data, programs, and information between two or more computers.

It is the process of sharing data, programs, and information between two or more computers. 1 Communications It is the process of sharing data, programs, and information between two or more computers. Numerous applications depend on communication systems: E-mail Instant messaging (IM) Internet

More information

Local Area Networks (LANs) & Networks Inter-Connection Chapter 5

Local Area Networks (LANs) & Networks Inter-Connection Chapter 5 CT 1502 Planning and Design of Communication Networks Local Area Networks (LANs) & Networks Inter-Connection Chapter 5 Nada Al Dosary Aldosary.na@gmail.com http://ct1502.edublogs.org 1 Outlines Understanding

More information

2. LAN Topologies Gilbert Ndjatou Page 1

2. LAN Topologies Gilbert Ndjatou Page 1 2. LAN Topologies Two basic categories of network topologies exist, physical topologies and logical topologies. The physical topology of a network is the cabling layout used to link devices. This refers

More information

Computer Communications and Network Basics p. 1 Overview of Computer Communications and Networking p. 2 What Does Computer Communications and

Computer Communications and Network Basics p. 1 Overview of Computer Communications and Networking p. 2 What Does Computer Communications and Computer Communications and Network Basics p. 1 Overview of Computer Communications and Networking p. 2 What Does Computer Communications and Networking Technologies Mean? p. 3 What Is a Computer Network?

More information

What is a Network? A connection of two or more computers so that they can share resources.

What is a Network? A connection of two or more computers so that they can share resources. NETWORKS What is a Network? A connection of two or more computers so that they can share resources. Network Benefits Remote access Sharing files & resources Communication Cost Maintenance Communication

More information

Chapter 9 Introduction to Networks

Chapter 9 Introduction to Networks Chapter 9 Introduction to Networks 9.1 Uses of a network Networks are used in many situations. We can see networks in places like offices, airports and factories. In fact we use networks in many situations

More information

Chapter 4: Network Access

Chapter 4: Network Access 4.0.1.1 Chapter 4: Network Access To support our communication, the OSI model divides the functions of a data network into layers. Each layer works with the layers above and below to transmit data. 4.0.1.2

More information

Introduction to LAN Protocols

Introduction to LAN Protocols CHAPTER 2 Chapter Goals Learn about different LAN protocols. Understand the different methods used to deal with media contention. Learn about different LAN topologies. This chapter introduces the various

More information

Switched Multimegabit Data Service (SMDS)

Switched Multimegabit Data Service (SMDS) CHAPTER 14 Switched Multimegabit Data Service (SMDS) Background Switched Multimegabit Data Service (SMDS) is a high-speed, packet-switched, datagram-based WAN networking technology used for communication

More information

Chapter Topics Part 1. Network Definitions. Behind the Scenes: Networking and Security

Chapter Topics Part 1. Network Definitions. Behind the Scenes: Networking and Security Chapter Topics Part 1 Behind the Scenes: Networking and Security CS10001 Computer Literacy Business Networks Network Advantages Client/Server Networks Network Classifications Servers Toplogies Chapter

More information

CHAPTER -1. Introduction to Computer Networks

CHAPTER -1. Introduction to Computer Networks CHAPTER -1 Introduction to Computer Networks PRELIMINARY DEFINITIONS computer network :: [Tanenbaum] a collection of autonomous computers interconnected by a single technology. communications network ::a

More information

Chapter 2 Communicating Over the Network

Chapter 2 Communicating Over the Network Chapter 2 Communicating Over the Network Elements of Communication Communicating the Messages Continuous stream of bits 00101010100101010101010101010101010 I have to wait Single communications (e.g. video,

More information

Local Area Networks (LANs): Packets, Frames and Technologies Gail Hopkins. Part 3: Packet Switching and. Network Technologies.

Local Area Networks (LANs): Packets, Frames and Technologies Gail Hopkins. Part 3: Packet Switching and. Network Technologies. Part 3: Packet Switching and Gail Hopkins Local Area Networks (LANs): Packets, Frames and Technologies Gail Hopkins Introduction Circuit Switching vs. Packet Switching LANs and shared media Star, bus and

More information

Introduction to Information Technology Turban, Rainer and Potter John Wiley & Sons, Inc. Copyright 2005

Introduction to Information Technology Turban, Rainer and Potter John Wiley & Sons, Inc. Copyright 2005 Introduction to Information Technology Turban, Rainer and Potter John Wiley & Sons, Inc. Copyright 2005 Network and Telecommunications Basics Chapter Outline The telecommunications system Network services

More information

IT 4504 Section 4.0. Network Architectures. 2008, University of Colombo School of Computing 1

IT 4504 Section 4.0. Network Architectures. 2008, University of Colombo School of Computing 1 IT 4504 Section 4.0 Network Architectures 2008, University of Colombo School of Computing 1 Section 4.1 Introduction to Computer Networks 2008, University of Colombo School of Computing 2 Introduction

More information

Network Infrastructure

Network Infrastructure Network Infrastructure For building computer networks more complex than e.g. a short bus, some additional components are needed. They can be arranged hierarchically regarding their functionality: Repeater

More information

Data Transport Networks

Data Transport Networks DC 8-1 DATACOMM John Abbott College JPC Data Transport Networks M. E. Kabay, PhD, CISSP Director of Education, ICSA President, JINBU Corp Copyright 1998 JINBU Corp. All rights reserved DC 8-2 Data Transport

More information

Networking interview questions

Networking interview questions Networking interview questions What is LAN? LAN is a computer network that spans a relatively small area. Most LANs are confined to a single building or group of buildings. However, one LAN can be connected

More information

Data Communications. Course Design Data Communications. Pre/Post Test (80 Questions/80 Points) Upon Request None No No No

Data Communications. Course Design Data Communications. Pre/Post Test (80 Questions/80 Points) Upon Request None No No No Data Communications Course Design 2005-2006 Course Information Organization Division EASTERN ARIZONA COLLEGE Business Course Number CMP 205 Title Credits 3 Developed by Lecture/Lab Ratio Transfer Status

More information

Internetworking is connecting two or more computer networks with some sort of routing device to exchange traffic back and forth, and guide traffic on

Internetworking is connecting two or more computer networks with some sort of routing device to exchange traffic back and forth, and guide traffic on CBCN4103 Internetworking is connecting two or more computer networks with some sort of routing device to exchange traffic back and forth, and guide traffic on the correct path across the complete network

More information

UNIT 1. Advantages of Computer Networks

UNIT 1. Advantages of Computer Networks UNIT 1 COMPUTER NETWORKS :- A Network is a set of devices or nodes connected by media links.a node can be a computer, printer,scanner,voip phone etc.computer network means an interconnected collection

More information

Data Communication. Introduction

Data Communication. Introduction Data Communication Introduction Course Information Assistant Instructor Reza Hassanpour Faris Serdar Taşel Office: L214 Office: L205 Phone: 2331338 Phone: 2331357 Email: reza@cankaya.edu.tr Email: fst@cankaya.edu.tr

More information

Computer Communication Networks Lecture No. 1

Computer Communication Networks Lecture No. 1 Computer Communication Networks Lecture No. 1 Reference books used in lectures 1- Computer Networks, Tanenbaum 2- Communication networks, Sharam Hekmat 3- Computer Networks, a system approach, L. Peterson

More information

Chapter 6 Connecting Device

Chapter 6 Connecting Device Computer Networks Al-Mustansiryah University Elec. Eng. Department College of Engineering Fourth Year Class Chapter 6 Connecting Device 6.1 Functions of network devices Separating (connecting) networks

More information

Networks: Communicating and Sharing Resources

Networks: Communicating and Sharing Resources Networks: Communicating and Sharing Resources 1 Local Area Networks Client/server networks o Made up of one or more file servers and clients (any type of computer) o Client software enables requests to

More information

Objectives Overview. Chapter 9 Networks and Communications. Discovering Computers Instructor: Imran Khalil MSc-IT 1 st semester Fall 2016

Objectives Overview. Chapter 9 Networks and Communications. Discovering Computers Instructor: Imran Khalil MSc-IT 1 st semester Fall 2016 Chapter 9 Networks and Communications Instructor: Imran Khalil MSc-IT 1 st semester Fall 2016 Discovering Computers 2012 Your Interactive Guide to the Digital World Objectives Overview Discuss the purpose

More information

TCP/IP and OSI Model Ethernet LAN Network Cables Network Devices Network Topologies Redundant Internet Connections VLANs Wireless LANs Upcoming

TCP/IP and OSI Model Ethernet LAN Network Cables Network Devices Network Topologies Redundant Internet Connections VLANs Wireless LANs Upcoming 2 TCP/IP and OSI Model Ethernet LAN Network Cables Network Devices Network Topologies Redundant Internet Connections VLANs Wireless LANs Upcoming Network Technologies 3 4 Elements of the Network Sender

More information

Zarządzanie sieciami telekomunikacyjnymi

Zarządzanie sieciami telekomunikacyjnymi Ethernet The term Ethernet refers to the family of local-area network (LAN) products covered by the IEEE 802.3 standard that defines what is commonly known as the CSMA/CD protocol. Four data rates are

More information

(Network Programming) Basic Networking Hardware

(Network Programming) Basic Networking Hardware EEE 448 Computer Networks with (Network Programming) Basic Networking Hardware Lecture #2 Dept of Electrical and Electronics Engineering Çukurova University Agenda What is a network device? Network Media

More information

GAYATRI COMPUTERS Prepared by : VENKAT.G 1. Module 1: NETWORK BASICS

GAYATRI COMPUTERS Prepared by : VENKAT.G 1. Module 1: NETWORK BASICS GAYATRI COMPUTERS Prepared by : VENKAT.G 1 What is Networking? Module 1: NETWORK BASICS Networking: Connecting two or more computers or network devices(routers/print Servers / Firewall Devices..etc) for

More information

Chapter 4 NETWORK HARDWARE

Chapter 4 NETWORK HARDWARE Chapter 4 NETWORK HARDWARE 1 Network Devices As Organizations grow, so do their networks Growth in number of users Geographical Growth Network Devices : Are products used to expand or connect networks.

More information

1: Review Of Semester Provide an overview of encapsulation.

1: Review Of Semester Provide an overview of encapsulation. 1: Review Of Semester 1 1.1.1.1. Provide an overview of encapsulation. Networking evolves to support current and future applications. By dividing and organizing the networking tasks into separate layers/functions,

More information

Campus Network Design

Campus Network Design Campus Network Design Thana Hongsuwan 2003, Cisco Systems, Inc. All rights reserved. 1-1 Content Ethernet Standard Transparent Bridges LAN Switches LAN and Switch Operation Loop Resolution Virtual LANs,

More information

Computers: Tools for an Information Age. Chapter 7 Networking: Computer Connections

Computers: Tools for an Information Age. Chapter 7 Networking: Computer Connections Computers: Tools for an Information Age Chapter 7 Networking: Computer Connections Objectives Describe the basic components of a network Explain the methods of data transmission, including types of signals,

More information

ก ก Information Technology II

ก ก Information Technology II ก ก 202103 Information Technology II ก ก ก ก ก (LAN), ก LAN, ก ก (LAN) ก ก ก LAN ก LAN ก LAN Topology Bus LAN Star LAN Ring LAN Wireless LAN Wireless LAN Wireless ก (LAN) ก ก ก LAN ก LAN WAN ก Random Access

More information

INTRODUCTION DATA COMMUNICATION TELECOMMUNICATIONS SYSTEM COMPONENTS 1/28/2015. Satish Chandra satish0402.weebly.com

INTRODUCTION DATA COMMUNICATION TELECOMMUNICATIONS SYSTEM COMPONENTS 1/28/2015. Satish Chandra satish0402.weebly.com INTRODUCTION DATA COMMUNICATION Satish Chandra satish0402.weebly.com The term telecommunication means communication at a distance. The word data refers to information presented in whatever form is agreed

More information

Chapter 9. Introduction. Communications

Chapter 9. Introduction. Communications Chapter 9 Communications and Networks McGraw-Hill/Irwin Copyright 2008 by The McGraw-Hill Companies, Inc. All rights reserved. 1 Introduction Page 247 Cell phones and other wireless technologies are allowing

More information

Gigabit Networks, VLANs & Wireless LANs

Gigabit Networks, VLANs & Wireless LANs Hands-On Gigabit Networks, VLANs & Wireless LANs ( Advanced Local Area Networks ) Course Description This Hands-On course will discuss traditional Ethernet as it is evolving today and its future. Ethernet

More information

Local Area Networks CONSYL Introduction to Computer Communications and Networks

Local Area Networks CONSYL Introduction to Computer Communications and Networks Local rea Networks 4/11/40 page 1 Faculty of Engineering, Kasetsart University Local rea Networks 1-1 LN characteristics confined within geographical area relatively high data rate under single management

More information

Electrical and Telecommunications Engineering Technology_TCET3142/TC570 NEW YORK CITY COLLEGE OF TECHNOLOGY THE CITY UNIVERSITY OF NEW YORK

Electrical and Telecommunications Engineering Technology_TCET3142/TC570 NEW YORK CITY COLLEGE OF TECHNOLOGY THE CITY UNIVERSITY OF NEW YORK NEW YORK CITY COLLEGE OF TECHNOLOGY THE CITY UNIVERSITY OF NEW YORK DEPARTMENT: COURSE CODE: COURSE TITLE: Electrical and Telecommunications Engineering Technology TCET 3142/TC570 Computer Systems and

More information

Local Area Network Overview

Local Area Network Overview Local Area Network Overview Chapter 15 CS420/520 Axel Krings Page 1 LAN Applications (1) Personal computer LANs Low cost Limited data rate Back end networks Interconnecting large systems (mainframes and

More information

Computers Are Your Future Eleventh Edition Chapter 7: Networks: Communicating & Sharing Resources

Computers Are Your Future Eleventh Edition Chapter 7: Networks: Communicating & Sharing Resources Computers Are Your Future Eleventh Edition Chapter 7: Networks: Communicating & Sharing Resources Copyright 2011 Pearson Education, Inc. Publishing as Prentice Hall 1 All rights reserved. No part of this

More information

ECE 333: Introduction to Communication Networks Fall Lecture 1: Introduction

ECE 333: Introduction to Communication Networks Fall Lecture 1: Introduction ECE 333: Introduction to Communication Networks Fall 2001 Lecture 1: Introduction Examples of communication networks/uses Course Goals History Classification of networks Related courses 1 Notes: This is

More information

Data Communication. Chapter # 1: Introduction. By: William Stalling

Data Communication. Chapter # 1: Introduction. By: William Stalling Data Communication Chapter # 1: By: Introduction William Stalling Data Communication The exchange of data between two devices via some form of transmission medium such as cable wire. For data communications

More information

Test Bank for A Guide to Designing and Implementing Local And Wide Area Networks 2nd Edition by Palmer and Sinclair

Test Bank for A Guide to Designing and Implementing Local And Wide Area Networks 2nd Edition by Palmer and Sinclair Test Bank for A Guide to Designing and Implementing Local And Wide Area Networks 2nd Edition by Palmer and Sinclair Link download full: https://testbankservice.com/download/test-bank-for-aguide-to-designing-and-implementing-local-and-wide-area-networks-2ndedition-by-palmer-and-sinclair/

More information

Local Area Networks (LANs) SMU CSE 5344 /

Local Area Networks (LANs) SMU CSE 5344 / Local Area Networks (LANs) SMU CSE 5344 / 7344 1 LAN/MAN Technology Factors Topology Transmission Medium Medium Access Control Techniques SMU CSE 5344 / 7344 2 Topologies Topology: the shape of a communication

More information

Local Area Networks. Ethernet LAN

Local Area Networks. Ethernet LAN Local Area Networks Ethernet 802.3 LAN -7-1 Local Area Networks (Lokale Netze) Wide Area Network LAN -7-2 Local Area Networks What is a LAN? Multiple systems attached to an often shared medium high total

More information

Technology in Action. Chapter 12 Behind the Scenes: Networking and Security. Copyright 2010 Pearson Education, Inc. Publishing as Prentice Hall

Technology in Action. Chapter 12 Behind the Scenes: Networking and Security. Copyright 2010 Pearson Education, Inc. Publishing as Prentice Hall Technology in Action Chapter 12 Behind the Scenes: Networking and Security 1 Networking Advantages Networks Increase productivity Enable the sharing of hardware resources Facilitate knowledge sharing Enable

More information

# DEFINITIONS TERMS. 5) A set of devices interconnected by media links. Network

# DEFINITIONS TERMS. 5) A set of devices interconnected by media links. Network CHAPTER 21 INTRODUCTION TO DATA COMMUNICATIONS AND NETWORKING # DEFINITIONS TERMS 1) Information that is stored in digital form. Information that has been processed, organized and stored. Data 2) Knowledge

More information

Communicating over the Network

Communicating over the Network Communicating over the Network Network Fundamentals Chapter 2 Version 4.0 1 Network Structure The elements of communication 3 common elements of communication Message source people/electronic devices need

More information

Computer science..pharmacy college

Computer science..pharmacy college Is the facility to transfer data to remote locations quickly & conveniently, the data is transferred by means of a telecommunication network. Note: Data communication is the transmission of electronic

More information

Introduction to Open System Interconnection Reference Model

Introduction to Open System Interconnection Reference Model Chapter 5 Introduction to OSI Reference Model 1 Chapter 5 Introduction to Open System Interconnection Reference Model Introduction The Open Systems Interconnection (OSI) model is a reference tool for understanding

More information

Introduction to Networks Network Types. BTEC Nat IT Computer Networks

Introduction to Networks Network Types. BTEC Nat IT Computer Networks Introduction to Networks Network Types 1 BTEC Nat IT Computer Networks Different types of Networks Understand the purpose of a computer network Create network drawings Understand Packet Switching BTEC

More information

ECE 333: Introduction to Communication Networks Fall Lecture 19: Medium Access Control VII

ECE 333: Introduction to Communication Networks Fall Lecture 19: Medium Access Control VII ECE : Introduction to Communication Networks Fall 2002 Lecture 9: Medium Access Control VII More on token ring networks LAN bridges and switches. More on token rings In the last lecture we began discussing

More information

1 Q1. Attempt any THREE 09 1 Give the difference between Human Network and

1 Q1. Attempt any THREE 09 1 Give the difference between Human Network and Sanjivani Rural Education Society s CLASS-TEST-I YEAR:- 2015-16 SANJIVANI K.B.P.POLYTECHNIC, KOPARGAON Model Answer Sub:- Computer Network Sub. Code:- 17429 Class :- Div:- A & B SYCM Dept. :- Computer

More information

Switched Multimegabit Data Service

Switched Multimegabit Data Service CHAPTER 14 Chapter Goals Tell how SMDS works, and describe its components. Describe the operational elements of the SMDS environment, and outline its underlying protocol. Discuss related technologies.

More information

Computer Network : Lecture Notes Nepal Engineering College Compiled by: Junior Professor: Daya Ram Budhathoki Nepal Engineering college, Changunarayan

Computer Network : Lecture Notes Nepal Engineering College Compiled by: Junior Professor: Daya Ram Budhathoki Nepal Engineering college, Changunarayan Computer Network : Lecture Notes Nepal Engineering College Compiled by: Junior Professor: Daya Ram Budhathoki Nepal Engineering college, Changunarayan Chapter3: OSI Reference Model: Network Software: Network

More information

Networking Fundamentals

Networking Fundamentals Networking Fundamentals Cable types and connectors Fiber A fiber optic cable consists of a bundle of glass threads, each of which is capable of transmitting messages modulated onto light waves. Fiber optics

More information

ET4254 Communications and Networking 1

ET4254 Communications and Networking 1 Topic 10:- Local Area Network Overview Aims:- LAN topologies and media LAN protocol architecture bridges, hubs, layer 2 & 3 switches 1 LAN Applications (1) personal computer LANs low cost limited data

More information

6.1.2 Repeaters. Figure Repeater connecting two LAN segments. Figure Operation of a repeater as a level-1 relay

6.1.2 Repeaters. Figure Repeater connecting two LAN segments. Figure Operation of a repeater as a level-1 relay 6.1.2 Repeaters A single Ethernet segment can have a maximum length of 500 meters with a maximum of 100 stations (in a cheapernet segment it is 185m). To extend the length of the network, a repeater may

More information