Connecting with Computer Science Chapter 4 Review: Chapter Summary:
|
|
|
- Maud Hunt
- 7 years ago
- Views:
Transcription
1 Chapter Summary: Networking is essential to modern computing. Networking requires a transmission medium to carry information from one computer device to another. Transmission media are rated in terms of their: bandwidth, signal-to-noise ratio, bit error rate and attenuation. Copper wire has been the most widely used network conductor, primarily in the form of coaxial and twisted pair cable. Fiber-optic cable has a much higher band-width than copper conductors. Cat 5 is a twisted pair copper cable used most commonly in Ethernet networks; it has a transmission speed of up to 100 Mbps. Wireless technologies allow networking to be conducted by using electromagnetic waves or light. The IEEE family of standards applies to wireless networking. A protocol is a set of rules designed to facilitate communication and is essential to networking. The OSI defines a set of protocols necessary for data communication; the 7 protocol layers are: Physical, Data Link, Network, Transport, Session, Presentation, Application. The main network types are: WAN, LAN, WLAN. LAN topologies are: Star, Ring and Bus. The most popular LAN technology is Ethernet, and token ring is another LAN technology. Various hardware devices are used in networking, such as NICs repeaters, hubs, switches, bridges, gateways routers and firewalls. Voice telephone service is widely used to extend networks, and modems handle the conversion from digital binary to analog audio to make using voice networks possible. Transmission media are shared among users by using FDM and TDM techniques. DSL, cable modems, and satellite are popular broadband WAN solutions.
2 Key Terms: 10BaseT: (140) 100BaseT: (141) 10GBaseT: (141) A twisted pair Ethernet networking cable capable of transmitting at rates up to 10 Mbps A fast Ethernet networking cable made up of 4 twisted pairs of wire and capable of transmitting at 100Mbps The fastest Ethernet networking cable, capable of transmitting at 10Gbps over twisted pairs of wire : (144) A family of specifications for WLANs developed by IEEE; Currently includes: , a, b, g, n AM: (155) ATM: (152) Attenuation: (138) Bandwidth: (138) Bit Error Rate: (138) Bluetooth: (144) Bridge: (153) Cable Modem: (159) Cat5: (141) CCITT: (147) Coaxial: (139) Datagram: (147) DSL: (158) Ethernet: (152) FDDI: (152) FDM: (158) Fiber Optic: (141) Firewall: (154) FM: (155) Gateway: (154) Guided Media: (139) Hub: (153) IEEE: (142) Impedance: (140) Inductance: (140) ISO: (146) ISO OSI ref Model: (146) LAN: (149) Modem: (155) NIC: (153) Network topology: (150) Node: (150) PDU: (148) PM: (155) Protocol: (144) Repeater: (153) Router: (154) Signal-to-Noise Ratio: (138) Switch: (153) (Amplitude Modulation) A technique of placing data on an alternating carrier wave by varying the signal s amplitude; this technique is often in modems. A network technology based on transferring data in cells or packets of a fixed size at speeds up to Gbps A reduction in the strength of an electrical signal as it travels along a medium A measurement of how much information can be carried in a given time period over a wired or wireless communication medium usually measured in bps. The percentage of bits that have errors in relation to the total number of bits received in a transmission; a measure of the quality of a communication line. A specification for short-range RF links between mobile computers, mobile phones, digital cameras and other portable devices. A special type of network switch that can be configured to allow only specific network traffic through, based on the destination address. A type of digital modem that connects to a local cable TV line to provide a continuous connection to the Internet. A popular Ethernet twisted pair communication cable capable of carrying data rates up to 100Mbps A standards group involved in the development of the ISO OSI reference model. Communication cable that consists of a center wire surrounded by insulation and then a grounded foil shield wrapped in steel or copper braid. A packet of information used in a connectionless network service that is routed to its destination by using an address included in the datagram s header. (Digital Subscriber Line) A method of sending and receiving data over regular phone lines, using a combination of FDM and TDM A common method of networking computers in a LAN, using copper cabling at speeds up to 100Mbps (Fiber Distributed Data Interface) A token passing, fiber optic cable protocol with support for data rates up to 100 Mbps; FDDI networks are typically used as the main lines for WANs. (Frequency-Division multiplexing) A technique for combining many signals on a single circuit by dividing available transmission bandwidth by frequency into narrow bands, each used for a separate communication channel. Guided network cable consisting of bundles of thin glass strands surrounded by a protective plastic sheath A network device that protects a network by filtering out potentially harmful incoming and out-going traffic. (Frequency Modulation) A technique of placing data on an alternating carrier wave by varying the signal s frequency; this techniques is often used in modems. A network component, similar to a bridge that allows connecting networks of different types. Physical transmission media, such as wire or cable. A network device that functions as a multiport repeater; signals received on any port are immediately retransmitted to all other on the hub. An organization involved in formulating networking standards. The opposition a transmission medium has toward the flow of alternating electrical currents The magnetic field around a conductor that opposes changes in current flow An organization that coordinates worldwide standards development. A data communication model consisting of seven functional layers. A network of computers in a single building or in close proximity. A device that converts binary signals into audio signals for transmission over standard voice-grade telephone lines and converts the audio signals back into binary. A circuit board that connects a network medium to the system bus. And converts a computers binary information into a format suitable for the transmission medium; each NIC has a unique 48-bit address. A schematic description of the arrangement of a network, including its nodes and connecting lines. Any addressable device attached to a network that can recognize, process or forward data transmissions. (Protocol Data Unit) A data communication packet containing protocol information in addition to a data payload. (Phase Modulation) A technique of placing data on an alternating carrier wave by varying the signal s phase; the most common modulation type in modems. A set of rules designed to facilitate communication; protocols are heavily used in networking. A network device used to amplify signals on long cables between nodes. A network device, similar to a gateway that directs network traffic, based on its logical address A measure of the quality of a communication channel. A network repeater with multiple inputs and outputs; each input can be switched to any of the outputs, creating a point-to-point circuit.
3 Key Terms: (cont ) T1-LIne: (157) TDM: (158) Token Ring: (152) Transmission Medium: (138) Twisted Pair: (139) Unguided Media: (139) WAN: (149) WLAN: (149) A digital transmission link with capacity of Mbps; T1 uses two pairs of normal twisted wires, the same used in most homes. (Time Division Multiplexing) A technique for combining many signals on a single circuit by allocating each signal on a single circuit by allocating each signal a fixed amount of time but allowing each signal the full bandwidth during an allotted time. A LAN technology that has stations wired in a ring, in which each station constantly passes a special message token on to the next; whichever station has the token can send a message. A material with the capability to conduct electrical and/or electromagnetic signals. A pair of insulated wires twisted together and used as a transmission medium in networking. Transmission media that you cannot see, such as air or space, that carry radio or light signals. A network in which computer devices are physically distant from each other, typically spanning cities, states or even continents. A local network that uses wireless transmission instead of wires; the IEEE protocol family is often used in WLAN s.
4 Test yourself: 1.) What are 2 types of transmission media? 2 types of transmission media are: Guided and Un-guided media. 2.) What are the four ways to rate transmission media? The 4 ways to rate transmission media are: Band Width. Signal-to-noise ratio. Bit error rate. Attenuation. 3.) What are the 2 basic copper wire formats? The 2 basic copper wire formats are: Twisted pair. Coaxial. 4.) What is the maximum frequency of Cat 5 cable? The maximum frequency of Cat 5 cable is: 100MHz. 5.) What are examples of networking protocols? Examples of networking protocols are: HTTP protocol. FTP protocol. 6.) How many layers are there in the OSI model? There 7 layers in the OSI model. 7.) What is WAN? WAN stands for Wide Area network. It allows for computers to connect internationally. 8.) What are the 3 LAN topologies? Three LAN topologies are: Bus. Ring. Star. 9.) Which of the 3 LAN topologies has emerged as the most popular? With the advent of the internet; The Star topology has increased in popularity. 10.) What is a NIC? A circuit board that connects a network medium to the system bus. And converts a computers binary information into a format suitable for the transmission medium; each NIC has a unique 48-bit address.
5 11.) Which network device can interpret and translate different network protocols? Routers. 12.) What is the difference between a hub and a switch? The difference between a switch and a hub is: Switch: Not all the inputs and outputs are connected. Instead, the switch examines the input s packet header and switches a point-to-point connection to the output addressed by the packet. Hub: All the inputs and outputs are connected. 13.) Which network device is designed to prevent damage to an inside network from an outside source? Firewall. 14.) What frequency range are voice-grade telephone lines designed to carry? The frequency range voice-grade telephone lines carry are designed to carry are: 300 to 3300Hz. 15.) What is the speed range for DSL? The speed range for DSL is: 256 Kbps to 1.5Mbps. 16.) What is bandwidth? A measurement of how much information can be carried in a given time period over a wired or wireless communication medium usually measured in bps. 17.) How does a WLAN differ from a LAN? WLAN differs from LAN in that WLAN is a wireless topology that spans continents as opposed to being confined to one building, structure or area. 18.) What is the difference between AM and FM? The difference between AM and FM are as follows: AM: (Amplitude Modulation) A technique of placing data on an alternating carrier wave by varying the signal s amplitude; this technique is often in modems. FM: (Frequency Modulation) A technique of placing data on an alternating carrier wave by varying the signal s frequency; this techniques is often used in modems. 19.) How many standard voice lines are equivalent to a T1 line? There are: 28 standard voice lines on a T1 line. 20.) Which type of multiplexing combines signals on a circuit by dividing available transmission bandwidth into narrow bands? FDM: (Frequency Division Multiplexing) combines signals on a circuit by dividing available transmission bandwidth into narrow bands.
6 Practice Exercises 1.) Which is a better signal-to-noise ratio? A. High. 2.) Fiber-optic cable is made of: A. Glass. 3.) Which is a faster networking cable? B. 100BaseT. 4.) Which of the following standards IS USED in wireless networking? C ) Which of the following IS NOT one of the OSI model layers? B. Wireless 6.) Which of the OSI layers is responsible for guaranteed delivery of data? C. Data-Link 7.) Which of the OSI layers is involved with a network s electrical specifications? A. Physical 8.) Which of the following is a LAN topology? C. Star 9.) A hub has a single input and single output. B. False 10.) Normal speeds of a cable modem are approximately: B. 1 Mbps 11.) DSL speeds range from: A. 256 Kbps to 1.5 Mbps 12.) Standard voice-grade lines are designed to carry frequencies in the range of: D. 300 Hz to 3300 Hz 13.) Modems convert binary digits into sounds by modulating tones. A. True. 14.) Which of the following is not a network device? C. Ramp 15.) Which of the following is used to connect a computer to a network? B. NIC
7 16.) What factors reduce the strength of an electrical signal as it travels along a transmission medium? D. Attenuation 17.) Which of the following is the most commonly used twisted pair cable category? B. Cat 5 18.) Which type of guided medium is the least susceptible to attenuation and inductance? C. Fiber-optic cable 19.) Which topology has become more popular with the advent of the Internet and home networking? B. Star 20.) DSL is a combination of what two types of multiplexing? A. FDM and TDM
1 Which network type is a specifically designed configuration of computers and other devices located within a confined area? A Peer-to-peer network
Review questions 1 Which network type is a specifically designed configuration of computers and other devices located within a confined area? A Peer-to-peer network B Local area network C Client/server
Chapter 9A. Network Definition. The Uses of a Network. Network Basics
Chapter 9A Network Basics 1 Network Definition Set of technologies that connects computers Allows communication and collaboration between users 2 The Uses of a Network Simultaneous access to data Data
Computers Are Your Future. 2006 Prentice-Hall, Inc.
Computers Are Your Future 2006 Prentice-Hall, Inc. Computers Are Your Future Chapter 3 Wired and Wireless Communication 2006 Prentice-Hall, Inc Slide 2 What You Will Learn... ü The definition of bandwidth
Solution. (Chapters 5-6-7-8) Dr. Hasan Qunoo. The Islamic University of Gaza. Faculty of Engineering. Computer Engineering Department
The Islamic University of Gaza Faculty of Engineering Computer Engineering Department Data Communications ECOM 4314 Solution (Chapters 5-6-7-8) Dr. Hasan Qunoo Eng. Wafaa Audah Eng. Waleed Mousa 1. A cable
Wireless Links - Wireless communication relies on radio signals or infrared signals for transmitting data.
Uses of a network A network is a way to connect computers so that they can communicate, exchange information and share resources in real time. Networks enable multiple users to access shared data and programs
Telecommunications, Networks, and Wireless Computing
Objectives Telecommunications, Networks, and Wireless Computing 1. What are the features of a contemporary corporate telecommunications system? On what major technology developments are they based? 2.
Introduction To Computer Networks
Introduction To Computer Networks 1. LAN s and WAN s 2. Some network and internetwork components 3. The communication process 4. Communication media 5. Topologies 6. Communication models and Standards
IT4504 - Data Communication and Networks (Optional)
- Data Communication and Networks (Optional) INTRODUCTION This is one of the optional courses designed for Semester 4 of the Bachelor of Information Technology Degree program. This course on Data Communication
Objectives. Lecture 4. How do computers communicate? How do computers communicate? Local asynchronous communication. How do computers communicate?
Lecture 4 Continuation of transmission basics Chapter 3, pages 75-96 Dave Novak School of Business University of Vermont Objectives Line coding Modulation AM, FM, Phase Shift Multiplexing FDM, TDM, WDM
Networks. The two main network types are: Peer networks
Networks Networking is all about sharing information and resources. Computers connected to a network can avail of many facilities not available to standalone computers: Share a printer or a plotter among
NETWORKING TECHNOLOGIES
NETWORKING TECHNOLOGIES (October 19, 2015) BUS3500 - Abdou Illia, Fall 2015 1 LEARNING GOALS Identify the major hardware components in networks. Identify and explain the various types of computer networks.
Think! Think! Data communications. Long-Distance. Modems: to analog and back. Transmission Media. The last mile is the hardest for digital information
Data communications Think! Think!?? What makes it possible to communicate from point A to point B?? Long-Distance Transmission Media If you place a call outside the local transport area, an interchange
Introduction to Computer
PDHonline Course E175 (8 PDH) Introduction to Computer Instructor: Dale W. Callahan, Ph.D., P.E. and Lea B. Callahan, P.E. 2012 PDH Online PDH Center 5272 Meadow Estates Drive Fairfax, VA 22030-6658 Phone
Computer Networks. Definition of LAN. Connection of Network. Key Points of LAN. Lecture 06 Connecting Networks
Computer Networks Lecture 06 Connecting Networks Kuang-hua Chen Department of Library and Information Science National Taiwan University Local Area Networks (LAN) 5 kilometer IEEE 802.3 Ethernet IEEE 802.4
Chapter 9. Communications and Networks. McGraw-Hill/Irwin. Copyright 2008 by The McGraw-Hill Companies, Inc. All rights reserved.
Chapter 9 Communications and Networks McGraw-Hill/Irwin Copyright 2008 by The McGraw-Hill Companies, Inc. All rights reserved. Competencies (Page 1 of 2) Discuss connectivity, the wireless revolution,
Chapter 9 Communications and Networks
Chapter 9 Communications and Networks Chapter 9 Objectives Discuss the components required for successful communications Identify various sending and receiving devices Explain the purpose of communications
Mathatma Gandhi University
Mathatma Gandhi University BSc Computer Science IV th semester BCS 402 Computer Network &Internet MULTIPLE CHOICE QUESTIONS 1. The computer network is A) Network computer with cable B) Network computer
EECC694 - Shaaban. Transmission Channel
The Physical Layer: Data Transmission Basics Encode data as energy at the data (information) source and transmit the encoded energy using transmitter hardware: Possible Energy Forms: Electrical, light,
Discovering Computers 2008. Chapter 9 Communications and Networks
Discovering Computers 2008 Chapter 9 Communications and Networks Chapter 9 Objectives Discuss the the components required for for successful communications Identify various sending and receiving devices
Local Area Network By Bhupendra Ratha, Lecturer School of Library and Information Science Devi Ahilya University, Indore Email: bhu261@gmail.com Local Area Network LANs connect computers and peripheral
CCNA 1: Networking Basics. Cisco Networking Academy Program Version 3.0
CCNA 1: Networking Basics Cisco Networking Academy Program Version 3.0 Table of Contents CCNA 1: NETWORKING BASICS...1 TARGET AUDIENCE...3 PREREQUISITES...3 COURSE DESCRIPTION...3 COURSE OBJECTIVES...3
2. What is the maximum value of each octet in an IP address? A. 128 B. 255 C. 256 D. None of the above
1. How many bits are in an IP address? A. 16 B. 32 C. 64 2. What is the maximum value of each octet in an IP address? A. 128 B. 255 C. 256 3. The network number plays what part in an IP address? A. It
Local-Area Network -LAN
Computer Networks A group of two or more computer systems linked together. There are many [types] of computer networks: Peer To Peer (workgroups) The computers are connected by a network, however, there
Introduction to Ethernet
Technical Tutorial 2002 12-06 Table of Contents 1: Introduction 2: Ethernet 3: IEEE standards 4: Topology 5: CSMA/CD 6: Wireless-LAN 7: Transmission Speed 8: Limitations of Ethernet 9: Sena Products and
ADSL or Asymmetric Digital Subscriber Line. Backbone. Bandwidth. Bit. Bits Per Second or bps
ADSL or Asymmetric Digital Subscriber Line Backbone Bandwidth Bit Commonly called DSL. Technology and equipment that allow high-speed communication across standard copper telephone wires. This can include
MANAGEMENT INFORMATION SYSTEMS 8/E
MANAGEMENT INFORMATION SYSTEMS 8/E Raymond McLeod, Jr. and George Schell Chapter 10 Data Communications Copyright 2001 Prentice-Hall, Inc. 10-1 Objectives Understand data communication basics. Know the
Introduction to computer networks and Cloud Computing
Introduction to computer networks and Cloud Computing Aniel Nieves-González Fall 2015 Computer Netwoks A computer network is a set of independent computer systems that are connected by a communication
IT4405 Computer Networks (Compulsory)
IT4405 Computer Networks (Compulsory) INTRODUCTION This course provides a comprehensive insight into the fundamental concepts in data communications, computer network systems and protocols both fixed and
Local Area Networks (LANs) Blueprint (May 2012 Release)
Local Area Networks (LANs) The CCNT Local Area Networks (LANs) Course April 2012 release blueprint lists the following information. Courseware Availability Date identifies the availability date for the
CN1047 INTRODUCTION TO COMPUTER NETWORKING CHAPTER 1 BASIC CONCEPTS OF NETWORK
CN1047 INTRODUCTION TO COMPUTER NETWORKING CHAPTER 1 BASIC CONCEPTS OF NETWORK DEFINTION & APPLICATIONS DEFINTION: A computer network is defined as the interconnection of two or more computers. It is done
11/22/2013 1. komwut@siit
11/22/2013 1 Week3-4 Point-to-Point, LAN, WAN Review 11/22/2013 2 What will you learn? Representatives for Point-to-Point Network LAN Wired Ethernet Wireless Ethernet WAN ATM (Asynchronous Transfer Mode)
Cabling LANs and WANs
Cabling LANs and WANs CCNA 1 v3 Module 5 10/11/2005 NESCOT CATC 1 Cabling the LAN Each media has advantages and disadvantages: Cable length Cost Ease of installation Susceptibility to interference The
Future Stars. Grade X Manual Chapter 1 Networking and Telecommunication. telecommunication. Telephones, telegrams, radios and televisions help
Future Stars Grade X Manual Chapter 1 Networking and Telecommunication 1. Answer the following questions. a. What is telecommunication? Ans: The transfer of information at a far distance is known as telecommunication.
Communication Networks. MAP-TELE 2011/12 José Ruela
Communication Networks MAP-TELE 2011/12 José Ruela Network basic mechanisms Introduction to Communications Networks Communications networks Communications networks are used to transport information (data)
Computer Networking: A Survey
Computer Networking: A Survey M. Benaiah Deva Kumar and B. Deepa, 1 Scholar, 2 Assistant Professor, IT Department, Sri Krishna College of Arts and Science College, Coimbatore, India. Abstract- Computer
What You Will Learn About. Computers Are Your Future. Chapter 8. Networks: Communicating and Sharing Resources. Network Fundamentals
What You Will Learn About Computers Are Your Future Chapter 8 Networks: Communicating and Sharing Resources Basic networking concepts Advantages and disadvantages of networks Peer-to-peer and client/server
Chapter 7: Computer Networks, the Internet, and the World Wide Web. Invitation to Computer Science, C++ Version, Third Edition
Chapter 7: Computer Networks, the Internet, and the World Wide Web Invitation to Computer Science, C++ Version, Third Edition Objectives In this chapter, you will learn about: Basic networking concepts
Chapter 4 Connecting to the Internet through an ISP
Chapter 4 Connecting to the Internet through an ISP 1. According to Cisco what two things are essential to gaining access to the internet? a. ISPs are essential to gaining access to the Internet. b. No
DATA COMMUNICATION AND NETWORKS
DATA COMMUNICATION AND NETWORKS 1. Define the term Computer Networks. A Computer network is a number if computers interconnected by one or more transmission paths. The transmission path often is the telephone
C20.0001 Information Systems for Managers Fall 1999
New York University, Leonard N. Stern School of Business C20.0001 Information Systems for Managers Fall 1999 Networking Fundamentals A network comprises two or more computers that have been connected in
INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA
COMM.ENG INTRODUCTION TO COMMUNICATION SYSTEMS AND TRANSMISSION MEDIA 9/6/2014 LECTURES 1 Objectives To give a background on Communication system components and channels (media) A distinction between analogue
Network Design. Yiannos Mylonas
Network Design Yiannos Mylonas Physical Topologies There are two parts to the topology definition: the physical topology, which is the actual layout of the wire (media), and the logical topology, which
Data Communication and Computer Network
1 Data communication principles, types and working principles of modems, Network principles, OSI model, functions of data link layer and network layer, networking components, communication protocols- X
Chapter 8: Computer Networking. AIMS The aim of this chapter is to give a brief introduction to computer networking.
Chapter 8: Computer Networking AIMS The aim of this chapter is to give a brief introduction to computer networking. OBJECTIVES At the end of this chapter you should be able to: Explain the following terms:
Wired & Wireless LAN Connections
Lecture 5 Wired & Wireless LAN Connections Network Interface Card (NIC) Ethernet Wiring - Thick Ethernet - Thin Ethernet - Star (Hub) Ethernet Extending LAN - Fiber Modem - Repeater - Bridge - Switch Short
Signal directionality Lower frequency signals are omnidirectional Higher frequency signals can be focused in a directional beam
Transmission Media Transmission medium Physical path between transmitter and receiver May be guided (wired) or unguided (wireless) Communication achieved by using em waves Characteristics and quality of
Introduction to Optical Networks
Yatindra Nath Singh Assistant Professor Electrical Engineering Department Indian Institute of Technology, Kanpur Email: ynsingh@ieee.org http://home.iitk.ac.in/~ynsingh 1 What are optical network? Telecomm
Data Link Protocols. TCP/IP Suite and OSI Reference Model
Data Link Protocols Relates to Lab. This module covers data link layer issues, such as local area networks (LANs) and point-to-point links, Ethernet, and the Point-to-Point Protocol (PPP). 1 TCP/IP Suite
Local Area Network. OSI Seven Layer Model. Whole Building Network
(MECH3023) 2 Local Area Network Networking for BAS Centralized & Decentralized networks LAN topologies LAN standards & examples Transmission hardware OSI Seven Layer Model Importance of interoperability
FIREWALLS & NETWORK SECURITY with Intrusion Detection and VPNs, 2 nd ed. Chapter 2 An Introduction to Networking
FIREWALLS & NETWORK SECURITY with Intrusion Detection and VPNs, 2 nd ed. Chapter 2 An Introduction to Networking Learning Objectives Upon completion of this chapter, you should be able to: Describe the
Page 1 of 7. Computer Networking
Page 1 of 7 Computer Networking 7.1 What Is Computer Networking? A computer network consists of several computers that are connected to one another using devices that allow them to communicate. Computer
Component 4: Introduction to Information and Computer Science
Component 4: Introduction to Information and Computer Science Unit 7: Networks & Networking Lecture 1 This material was developed by Oregon Health & Science University, funded by the Department of Health
Overview of Computer Networks
Overview of Computer Networks Client-Server Transaction Client process 4. Client processes response 1. Client sends request 3. Server sends response Server process 2. Server processes request Resource
5 Data Communication and Networking
5 Data Communication and Networking 5.1 Introduction Today computer is available in many offices and homes and therefore there is a need to share data and programs among various computers. With the advancement
Certified Telecommunications & Network Professional (CTNP) Syllabus. Version 1.0
(CTNP) Syllabus Copyright This is intellectual property of ACTA S.A. and it is protected by Greek and European legislation concerning copyright. The creation of a copy of part, or of the whole, without
Multiplexing. Multiplexing is the set of techniques that allows the simultaneous transmission of multiple signals across a single physical medium.
Multiplexing Multiplexing is the set of techniques that allows the simultaneous transmission of multiple signals across a single physical medium. The following two factors in data communications lead to
Computer Networks. By Hardeep Singh
Computer Networks Contents Introduction Basic Elements of communication systemnetwork Topologies Network types Introduction A Computer network is a network of computers that are geographically distributed,
Module 5. Broadcast Communication Networks. Version 2 CSE IIT, Kharagpur
Module 5 Broadcast Communication Networks Lesson 1 Network Topology Specific Instructional Objectives At the end of this lesson, the students will be able to: Specify what is meant by network topology
Computer Network and Communication
2 Computer Network and Communication 2.1 INTRODUCTION As we all know, the advances in Information technology revolutionized almost every aspect of our life. Education, industry, banking, researches and
Internet Public Network
Internet Public Network Bandwidth Data rate measured in bits (not bytes) per seconds Kbps (Kilobits per seconds) 125 chars/sec Mbps (Megabits per seconds) 1,250 chars/sec Gbps (Gigabits per seconds) 12,500
3.1 TELECOMMUNICATIONS, NETWORKS AND THE INTERNET
3.1 TELECOMMUNICATIONS, NETWORKS AND THE INTERNET The Business Value of Telecommunications and Networking Business value impacts of the telecommunications and Networking are: Declining transaction costs
Internet and Services
3 Internet and Services 3.1 INTRODUCTION The Internet began way back in 1969 when it was called ARPANet (Advanced Research Project Agency Network) and was used exclusively for military purposes. It soon
CSCI 491-01 Topics: Internet Programming Fall 2008
CSCI 491-01 Topics: Internet Programming Fall 2008 Introduction Derek Leonard Hendrix College September 3, 2008 Original slides copyright 1996-2007 J.F Kurose and K.W. Ross 1 Chapter 1: Introduction Our
What Does Communication (or Telecommunication) Mean?
What Does Communication (or Telecommunication) Mean? The term communication (or telecommunication) means the transfer of some form of information from one place (known as the source of information) to
Data Transmission. Data Communications Model. CSE 3461 / 5461: Computer Networking & Internet Technologies. Presentation B
CSE 3461 / 5461: Computer Networking & Internet Technologies Data Transmission Presentation B Kannan Srinivasan 08/30/2012 Data Communications Model Figure 1.2 Studying Assignment: 3.1-3.4, 4.1 Presentation
Network+ Guide to Networks 6 th Edition. Chapter 7 Wide Area Networks
Network+ Guide to Networks 6 th Edition Chapter 7 Wide Area Networks Objectives Identify a variety of uses for WANs Explain different WAN topologies, including their advantages and disadvantages Compare
Computer Networking. Definitions. Introduction
Computer Networking Definitions DHCP Dynamic Host Configuration Protocol It assigns IP addresses to client devices, such as desktop computers, laptops, and phones, when they are plugged into Ethernet or
Analog vs. Digital Transmission
Analog vs. Digital Transmission Compare at two levels: 1. Data continuous (audio) vs. discrete (text) 2. Signaling continuously varying electromagnetic wave vs. sequence of voltage pulses. Also Transmission
Ethernet. Ethernet Frame Structure. Ethernet Frame Structure (more) Ethernet: uses CSMA/CD
Ethernet dominant LAN technology: cheap -- $20 for 100Mbs! first widely used LAN technology Simpler, cheaper than token rings and ATM Kept up with speed race: 10, 100, 1000 Mbps Metcalfe s Etheret sketch
Network Topologies. Network Topologies
Network Topologies LANs and WANs - Geographical coverage LANs A single geographical location, such as office building, school, etc Typically High speed and cheaper. WANs Spans more than one geographical
FBLA: NETWORKING CONCEPTS. Competency: General Network Terminology and Concepts
Competency: General Network Terminology and Concepts 1. Demonstrate knowledge of the purposes, benefits, and risks for installing a network. 2. Identify types of networks (e.g., LAN, WAN, MAN) and their
WAN Data Link Protocols
WAN Data Link Protocols In addition to Physical layer devices, WANs require Data Link layer protocols to establish the link across the communication line from the sending to the receiving device. 1 Data
Networking 101 (Networking Basics) Presentation to UCHUG - 1/03/07 G. Skalka
Networking 101 (Networking Basics) Presentation to UCHUG - 1/03/07 G. Skalka What is a network? A computer network is two or more computers connected together using a telecommunication system for the purpose
Computer Networking Networks
Page 1 of 8 Computer Networking Networks 9.1 Local area network A local area network (LAN) is a network that connects computers and devices in a limited geographical area such as a home, school, office
Unit of Learning # 2 The Physical Layer. Redes de Datos Sergio Guíñez Molinos sguinez@utalca.cl 1-2009
Unit of Learning # 2 The Physical Layer Redes de Datos Sergio Guíñez Molinos sguinez@utalca.cl 1-2009 The Theoretical Basis for Data Communication Sergio Guíñez Molinos Redes de Computadores 2 The Theoretical
Networking Devices. Lesson 6
Networking Devices Lesson 6 Objectives Exam Objective Matrix Technology Skill Covered Exam Objective Exam Objective Number Network Interface Cards Modems Media Converters Repeaters and Hubs Bridges and
Broadband 101: Installation and Testing
Broadband 101: Installation and Testing Fanny Mlinarsky Introduction Today the Internet is an information superhighway with bottlenecks at every exit. These congested exits call for the deployment of broadband
Computer Network. Interconnected collection of autonomous computers that are able to exchange information
Introduction Computer Network. Interconnected collection of autonomous computers that are able to exchange information No master/slave relationship between the computers in the network Data Communications.
FIBER OPTIC APPLICATION IN A PROFIBUS NETWORK
FIBER OPTIC APPLICATION IN A PROFIBUS NETWORK Field busses are industrial control systems using Programmable Logic lers (PLC) to control and manage field devices found in industrial environments. The communication
This course has been retired. View the schedule of current <a href=http://www.ptr.co.uk/networkingcourses.htm>networking
Introduction to Data Communications & Networking Course Description: This course has been retired. View the schedule of current networking Courses
Computer Networks Vs. Distributed Systems
Computer Networks Vs. Distributed Systems Computer Networks: A computer network is an interconnected collection of autonomous computers able to exchange information. A computer network usually require
JOB READY ASSESSMENT BLUEPRINT COMPUTER NETWORKING FUNDAMENTALS - PILOT. Test Code: 4514 Version: 01
JOB READY ASSESSMENT BLUEPRINT COMPUTER NETWORKING FUNDAMENTALS - PILOT Test Code: 4514 Version: 01 Specific Competencies and Skills Tested in this Assessment: PC Principles Identify physical and equipment
Introduction to Computer Networks and Data Communications
Introduction to Computer Networks and Data Communications Chapter 11 Learning Objectives Define the basic terminology of computer networks Recognize the individual components of the big picture of computer
Overview of WAN Connections Module 1
Overview of WAN Connections Module 1 Objectives This module introduces the basic elements of WAN connections and describes the role each element plays in creating that connection. After completing this
SSVP SIP School VoIP Professional Certification
SSVP SIP School VoIP Professional Certification Exam Objectives The SSVP exam is designed to test your skills and knowledge on the basics of Networking and Voice over IP. Everything that you need to cover
WAN Technology. Heng Sovannarith heng_sovannarith@yahoo.com
WAN Technology Heng Sovannarith heng_sovannarith@yahoo.com Introduction A WAN is a data communications network that covers a relatively broad geographic area and often uses transmission facilities provided
Chapter 2 - The TCP/IP and OSI Networking Models
Chapter 2 - The TCP/IP and OSI Networking Models TCP/IP : Transmission Control Protocol/Internet Protocol OSI : Open System Interconnection RFC Request for Comments TCP/IP Architecture Layers Application
Course Duration: Course Content Course Description Course Objectives Course Requirements
Course: TCS 201 Telecommunication and Networks I (3 credits compulsory) Course Duration: The course shall comprise of 45hours of theory and practical classes. The theory will be taught for 30hours of 2hours
Multiplexing on Wireline Telephone Systems
Multiplexing on Wireline Telephone Systems Isha Batra, Divya Raheja Information Technology, Dronacharya College of Engineering Farrukh Nagar, Gurgaon, India ABSTRACT- This Paper Outlines a research multiplexing
Chapter 5. Data Communication And Internet Technology
Chapter 5 Data Communication And Internet Technology Purpose Understand the fundamental networking concepts Agenda Network Concepts Communication Protocol TCP/IP-OSI Architecture Network Types LAN WAN
The Telephone Network. An Engineering Approach to Computer Networking
The Telephone Network An Engineering Approach to Computer Networking Is it a computer network? Specialized to carry voice Also carries telemetry video fax modem calls Internally, uses digital samples Switches
Networks 2. Gabriela Ochoa. 2014 University of Stirling CSCU9B1 Essential Skills for the Information Age. Content
Networks 2 Gabriela Ochoa Lecture Networks 2/Slide 1 Content How is Internet connected? Internet backbone Internet service providers (ISP) How to connect a home computer to the Internet? How do networks
Wireless LANs vs. Wireless WANs
White Paper Wireless LANs vs. Wireless WANs White Paper 2130273 Revision 1.0 Date 2002 November 18 Subject Supported Products Comparing Wireless LANs and Wireless WANs Wireless data cards and modules,
OSI Reference Model: An Overview
OSI Reference Model: An Overview Gaurav Bora 1, Saurabh Bora 2, Shivendra Singh 3, Sheikh Mohamad Arsalan 4 ( 1 Department of Electronics, Uttarakhand Technical University, Dehradun, INDIA) ( 2 Department
Cisco Network Performance Evaluation Using Packet Tracer
Cisco Network Performance Evaluation Using Packet Tracer doi: 10.17932/ IAU.IJEMME.m.21460604.2015.5/1.905-911 Muhammet Emin KAMİLOĞLU 1 Abstract In this study, a wide area network designed and simulated.
Networking Basics. Uses of a network
Networking Basics Data communications the electronic transfer of information between computers. This has become a major focus of the computer industry especially since the rapid growth of the internet.
(Refer Slide Time: 2:10)
Data Communications Prof. A. Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture-12 Multiplexer Applications-1 Hello and welcome to today s lecture on multiplexer
Data Communication Networks and Converged Networks
Data Communication Networks and Converged Networks The OSI Model and Encapsulation Layer traversal through networks Protocol Stacks Converged Data/Telecommunication Networks From Telecom to Datacom, Asynchronous