Chapter 2 Communicating Over the Network
|
|
|
- Monica Francis
- 5 years ago
- Views:
Transcription
1 Chapter 2 Communicating Over the Network
2 Elements of Communication
3 Communicating the Messages Continuous stream of bits I have to wait Single communications (e.g. video, message) could be: Continuous stream of bits Take over (hog) the network. Significant delays Inefficient use Any loss - resend entire message 3
4 Communicating the Messages Segmentation Better approach segmentation. Multiplexing: Different conversations can be interleaved. 4
5 Communicating the Messages X Benefits Reliability (3) Different paths Alternate path Only the missing segments need to be retransmitted 5
6 Disadvantage of Segmentation Disadvantage added level of complexity. Analogy: 100 page letter one page at a time Separate envelopes Sequencing 6
7 Components of the Network Devices (hardware) End devices, switch, router, firewall, hub Media (wired, wireless) Cables, wireless mediums Services (software) Network applications, routing protocols, processes, algorithms 7
8 End devices End devices or hosts: The source or destination of a message. 8
9 Source Address: Destination Address: Each host is identified by an address. IP (Internet Protocol) address (later) 9
10 Servers and Clients Client Server A host Client, Server, or both. Software determines the role. Servers provide information and services to clients or web pages Clients request information from the server. 10
11 Intermediary Devices switch or hub routers switch or hub Intermediary devices: Connectivity to and between networks Examples (4): Network Access Devices (Hubs, switches, and wireless access points) Internetworking Devices (routers) Communication Servers and Modems Security Devices (firewalls) 11
12 Network Media Network media: The medium over which the message travels. Metallic wires - electrical impulses. Fiber optics pulses of light Wireless electromagnetic waves. 12
13 Network Media Different media considerations (4): Distance it will carry signal Environment it works in Bandwidth (speed) Cost 13
14 Local Area Network (LAN) Local Area Network (LAN) An individual network usually spans a single geographical area, providing services and applications to people within a common organizational structure, such as a single business, campus or region. 14
15 Wide Area Network (WAN) T1, DS3, OC3 PPP, HDLC Frame Relay, ATM ISDN, POTS Wide Area Networks (WANs) Leased connections through a telecommunications service provider network. Networks that connect LANs in geographically separated locations Telecommunications service provider (TSP) interconnect the LANs at the different locations. Voice and data on separate networks or converged networks 15
16 The Internet A Network of Networks ISPs (Internet Service Providers) Often also TSPs Connect their customers to the Internet. The Internet ISPs connected to other ISPs 16
17 Network Representations Network Interface Card (NIC) Ports and interfaces (used interchangeably) Physical Port Interface - Connect to individual networks. 17
18 Protocols
19 Protocol Protocol Rules that govern communications. Protocol suite - A group of inter-related protocols - Example: TCP/IP 19
20 Message uses Multiple protocols (encapsulated) Protocols HTTP Data Frame IP TCP App Data Frame Trailer Message: Data Multiple protocols 20
21 Multiple protocols (encapsulated) Protocols HTTP Data Frame IP TCP App Data Frame Trailer Encapsulation Process of adding a header to the data or any previous set of headers. Decapsulation Process of removing a header. 21
22 Example: Protocol IPv4 Frame IP TCP HTTP Data Frame Trailer 22
23 Frame IP TCP HTTP Frame Trailer Data
24 Protocols Networking protocols suites include rules for: (4) Format Accessing the media Error detection Setup and termination 24
25 Protocol Suites and Standards Early days proprietary network equipment and protocols. Now Industry standards Institute of Electrical and Electronics Engineers (IEEE) Examples: (Ethernet), (WLAN) Internet Engineering Task Force (IETF) Internet standards RFCs (Request for Comments) Example: TCP, IP, HTTP, FTP 25
26 Example: RFC 791 IPv4 26
27 Interaction of Protocols Protocols HTTP Data Frame IP TCP App Hypertext Transfer Protocol (HTTP) Data Protocol that governs interaction between web server and a web client. Frame Trailer 27
28 Interaction of Protocols Protocols HTTP Data segment Transmission Control Protocol (TCP) Responsible for controlling the information exchanged between the server and the client: Size of data Flow control Reliability 28
29 Protocols HTTP Data packet Internetwork Protocol (IP) Assigns the appropriate source and destination addresses, Original source address of host Final destination address of host Used by routers in selecting the best path 29
30 Interaction of Protocols Protocols HTTP Data frame Network access protocols (Data link and Physical layer protocols) Format and physical transmission of data on the media. 30
31 Technology-Independent Protocols Frame IP TCP HTTP data Frame Trailer IP Packet Ethernet Ethernet IP Packet T1, DS3, OC3 PPP, HDLC Frame Relay, ATM ISDN, POTS IP is a protocol that will travel over different types of media. 31
32 Using Layered Protocols
33 Benefits of a Layered Model Protocols HTTP Data Using a layered model: Fosters competition Prevents changes in one layer from affecting other layers above and below. Provides a common language to describe networking functions and capabilities. 33
34 Protocol and Reference Models 34
35 Protocol and Reference Models The Open Systems Interconnection (OSI) model is the most widely known internetwork reference model. The International Organization for Standardization (ISO) released the OSI reference model in 1984, was the descriptive scheme they created. 35
36 TCP/IP Model TCP/IP Model and Protocol Suite is an open standard. 36
37 The Communication Process - Encapsulation Data Link IP TCP HTTP Data Data Link Trailer Server HTTP Data Encapsulation Process of adding control information as it passes down through the layered model. 37
38 The Communication Process - Decapsulation Data Link IP TCP HTTP Data Data Link Trailer HTTP Data Client Decapsulation Process of removing control information as it passes upwards through the layered model. 38
39 Wireshark will let us examine protocols! 39
40 The Communication Process Protocol Data Unit (PDU) - The form that a piece of data takes at any layer. PDUs are named according to the protocols of the TCP/IP suite. Data - Application layer PDU Segment - Transport Layer PDU Packet - Internetwork Layer PDU Frame - Network Access Layer PDU Bits - A PDU used when physically transmitting data over the medium 40
41 Layer 2 Data Link Frame Layer 3 IP Packet Dest. Add MAC 0B-31 FF-FF 0B Source Add MAC 0A C-22 Type 800 Dest. IP Source IP IP fields Data Trailer The sending host builds message with multiple encapsulations. Data Link IP TCP HTTP Data Data Link Trailer The receiving host receives the message with multiple decapsulations. Data Link IP TCP HTTP Data Data Link Trailer 41
42 Getting Data to the Right Application Protocols HTTP Data Layer 4 (TCP/UDP) contains a port number which represents the application or service carried in the IP packet. Destination port destination application Source port source application 42
43 Getting Data to the Right Application Destination port number tells the OS (TCP/IP) stack which application to hand the data to. Examples: 80 = HTTP (www) 23 = Telnet 20, 21 = FTP 25 = SMTP 43
Chapter 2. Communicating Over The Network. CCNA1-1 Chapter 2
Chapter 2 Communicating Over The Network CCNA1-1 Chapter 2 Communicating Over the Network The Platform for Communications CCNA1-2 Chapter 2 Elements of Communication People communicate in many different
Chapter 2. Communicating Over The Network
Chapter 2 Communicating Over The Network CCNA1-1 Chapter 2 Note for Instructors These presentations are the result of a collaboration among the instructors at St. Clair College in Windsor, Ontario. Thanks
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
Network Fundamentals Chapter 2 Modified by Tony Chen 05/20/2008
Communicating Over the Network Network Fundamentals Chapter 2 Modified by Tony Chen 05/20/2008 ITE I Chapter 6 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Objectives Drippy Sweet Pancakes
Objectives. Network Structure. Network Structure
2007 Cisco Systems, Inc. All rights reserved. Cisco Public Objectives Communicating over the Network Network Fundamentals Chapter 2 Chapter 1 1 Describe the structure of a network, including the devices
CCNA 1: Chapter 2 Exam Answer v %
1. Refer to the exhibit. Cell A at IP address 10.0.0.34 has established an IP session with IP Phone 1? at IP address 172.16.1.103. Based upon the graphic, which device type best describes the function
Chapter 3: Network Protocols and Communications CCENT Routing and Switching Introduction to Networks v6.0 Instructor Planning Guide
Chapter 3: Network Protocols and Communications CCENT Routing and Switching Introduction to Networks v6.0 Instructor Planning Guide CCNET v6 1 Chapter 3: Network Protocols and Communications CCENT Routing
Communicating over the Network
CHAPTER 2 Communicating over the Network Objectives Upon completion of this chapter, you will able to answer the following questions: What is the structure of a network, including devices and media necessary
CCNA Exploration - Network Fundamentals
2.0 Chapter Introduction 2.0.1 Chapter Introduction More and more, it is networks that connect us. People communicate online from everywhere. Efficient, dependable technology enables networks to be available
Communicating over the Network
Communicating over the Network Network Fundamentals Chapter 2 1 Objectives Describe the structure of a network, including the devices and media that are necessary for successful communications. Explain
Refer to the exhibit. Which set of devices contains only end devices? A,C,D B,E,G,H C,D,G,H,I,J D,E,F,H,I,J E,F,H,I,J
1. What is the purpose of the TCP/IP Network Access layer? path determination and packet switching data presentation the division of segments into packets network media control 2. Which characteristic
E&CE 358: Tutorial 1. Instructor: Sherman (Xuemin) Shen TA: Miao Wang
E&CE 358: Tutorial 1 Instructor: Sherman (Xuemin) Shen TA: Miao Wang Email: m59wang@uwaterloo.ca 1 About Tutorials TA: Miao Wang Office: EIT 3133; Tutorials: Th 4:30 5:20 pm Topics Supplementary knowledge
Network Reference Models
Network Reference Models LECTURE (2) Network Reference Models A framework (guideline) for network implementation and troubleshooting. Divides complex functions into simpler components. Importance of reference
Chapter 3: Network Protocols and Communications
Chapter 3: Network Protocols and Communications Introduction to Networks Intro to Networks v5 Message Delivery Options IPv4 Unicast One-to-One Multicast One-to-Many Broadcast One-to-All IPv6 Unicast One-to-One
Draft Manuscript Draft M. Manuscript Draft Ma. cript Draft Manuscript D. t Manuscript Draft Manu ipt Draft Manuscript Dra. anuscript Draft Manuscri
M aft Ma CHAPTER 2 ript Dra Communicating over the Network an Cisco Press is committed to providing the Cisco Networking Academy community with quality products to aft support teaching and learning the
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
OSI Data Link Layer. Network Fundamentals Chapter 7. Version Cisco Systems, Inc. All rights reserved. Cisco Public 1
OSI Data Link Layer Network Fundamentals Chapter 7 Version 4.0 1 Objectives Explain the role of Data Link layer protocols in data transmission. Describe how the Data Link layer prepares data for transmission
Guide to Networking Essentials, 6 th Edition. Chapter 6: Network Reference Models and Standards
Guide to Networking Essentials, 6 th Edition Chapter 6: Network Reference Models and Standards Objectives Explain the OSI reference model layers and their relationship to hardware and software Explain
Module 2 Overview of Computer Networks
Module 2 Overview of Computer Networks Networks and Communication Give me names of all employees Who earn more than $00,000 ISP intranet backbone satellite link desktop computer: server: network link:
Module 2 Overview of. Computer Networks
Module Overview of Networks and Communication Give me names of all employees Who earn more than $00,000 ISP intranet backbone satellite link desktop computer: server: network link: CS454/654 - Issues How
Operating Systems CS 571
Computer Networks: Overview Operating Systems CS 571 Network types Range Bandwidth (Mbps) Latency (ms) LAN 1-2 kms 10-1000 1-10 WAN worldwide 0.010-600 100-500 MAN 2-50 kms 1-150 10 Wireless LAN 0.15-1.5
Internetworking Concepts Overview. 2000, Cisco Systems, Inc. 2-1
Internetworking Concepts Overview 2000, Cisco Systems, Inc. 2-1 2000, Cisco Systems, Inc. www.cisco.com ICND v1.0a 2-2 Objectives On completion of this chapter, you will be able to perform the following
Communicating over the Network. Network Fundamentals. ITE PC v4.0 Chapter Cisco Systems, Inc. All rights reserved.
Communicating over the Network Network Fundamentals 1 Network Structure Define e the components of a network Network components hardware software 2 Network Structure End Devices and their Role in the Network
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
Data Communication and Network. Introducing Networks
Data Communication and Network Introducing Networks Introduction to Networking Computer network, or simply network Refers to the connection of two or more computers by some type of medium You can connect
The OSI Model. Open Systems Interconnection (OSI). Developed by the International Organization for Standardization (ISO).
Network Models The OSI Model Open Systems Interconnection (OSI). Developed by the International Organization for Standardization (ISO). Model for understanding and developing computer-to-computer 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.
OSI Network Layer. Network Fundamentals Chapter 5. Version Cisco Systems, Inc. All rights reserved. Cisco Public 1
OSI Network Layer Network Fundamentals Chapter 5 Version 4.0 1 Objectives Identify the role of the Network Layer, as it describes communication from one end device to another end device. Examine the most
Chapter 7. OSI Data Link Layer
Chapter 7 OSI Data Link Layer CCNA1-1 Chapter 7 Note for Instructors These presentations are the result of a collaboration among the instructors at St. Clair College in Windsor, Ontario. Thanks must go
Chapter 7. OSI Data Link Layer. CCNA1-1 Chapter 7
Chapter 7 OSI Data Link Layer CCNA1-1 Chapter 7 Note for Instructors These presentations are the result of a collaboration among the instructors at St. Clair College in Windsor, Ontario. Thanks must go
Data Encapsulation & OSI & TCP/IP Models Week 2. Lecturer: Lucy White Office : 324
Data Encapsulation & OSI & TCP/IP Models Week 2 Lecturer: Lucy White lbwhite@wit.ie Office : 324 1 Network Protocols A protocol is a formal description of a set of rules and conventions that govern a particular
Introduction to computer networking
edge core Introduction to computer networking Comp Sci 3600 Security Outline edge core 1 2 edge 3 core 4 5 6 The edge core Outline edge core 1 2 edge 3 core 4 5 6 edge core Billions of connected computing
Link download full: Test Bank for Business Data Networks and Security 9th Edition by Panko https://digitalcontentmarket.org/download/business-data-networks-and-security-9thedition-by-panko/ Business Data
ELC 537 Communication Networks
Modern Academy for Engineering and Technology Electronics Engineering and Communication Technology Dpt. ELC 537 Communication Networks Prepared by: Dr. Nelly Muhammad Hussein Sections & Objectives Principles
ITEC 3800 Data Communication and Network. Introducing Networks
ITEC 3800 Data Communication and Network Introducing Networks Introduction to Networking Computer network, or simply network Refers to the connection of two or more computers by some type of medium You
Data and Computer Communications. Chapter 2 Protocol Architecture, TCP/IP, and Internet-Based Applications
Data and Computer Communications Chapter 2 Protocol Architecture, TCP/IP, and Internet-Based s 1 Need For Protocol Architecture data exchange can involve complex procedures better if task broken into subtasks
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
Network Layers. Standardization Cruelty 2009/08/12. (C) Herbert Haas
Network Layers Standardization Cruelty (C) Herbert Haas 2009/08/12 The good thing about standards is that there are so many to choose from Andrew S. Tanenbaum Standards We need networking standards Ensure
Computer Communication & Networks / Data Communication & Computer Networks Week # 03
Computer Communication & Networks / Data Communication & Computer Networks Week # 03 M.Nadeem Akhtar CS & IT Department The University of Lahore Email: nadeem.akhtar@cs.uol.edu.pk URL-https://sites.google.com/site/nadeemuolcsccn/home
Lecture 3 Protocol Stacks and Layering
Lecture 3 Protocol Stacks and ing Hui Zhang School of Computer Science Carnegie Mellon University 15-441 Networking, Fall 2007 http://www.cs.cmu.edu/~srini/15-441/f07/ 1 What is a Communication Network?
CPEG514 Advanced Computer Networks. Atef Abu Salim University of Nizwa Spring 2013/2014
CPEG514 Advanced Computer Networks Atef Abu Salim University of Nizwa Spring 2013/2014 Today s Class Topics Course Syllabus Computer Networks LANs and WANs The Internet Protocols, Layers and Interfaces
Reti di Calcolatori I
Reti di Calcolatori I Prof. Roberto Canonico Dipartimento di Ingegneria Elettrica e delle Tecnologie dell Informazione Corso di Laurea in Ingegneria delle Telecomunicazioni Corso di Laurea in Ingegneria
Chapter 11: Wide-Area Networks and the Internet
Chapter 11: Wide-Area Networks and the Internet MULTIPLE CHOICE 1. MAN stands for: a. Manchester Access Network c. Metropolitan-Area Network b. Multiple-Area Network d. Multiple Access Network 2. Packet
Network Models. Behrouz A. Forouzan Data communication and Networking Fourth edition
Chapter 2 Network Models Behrouz A. Forouzan Data communication and Networking Fourth edition 1 Layered Tasks We use the concept of layers in our daily life. As an example, let us consider two friends
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
COMS Introduction to Computers. Networking
COMS 1001 Introduction to Computers Networking What's Ahead Networking layers Network Speeds Protocols, sockets, client/server Routing, DNS, Ethernet, LANs, wireless What is a Network? Loose definition:
NETWORK SECURITY ITEC 435
NETWORK SECURITY ITEC 435 Agenda Chapter 2: Introduction to Networking Introduction to Networking Networking Fundamentals Reasons to Network Getting the Message Across Analog Information on an Analog Medium
Objectives. Learn how computers are connected. Become familiar with different types of transmission media
Objectives Learn how computers are connected Become familiar with different types of transmission media Learn the differences between guided and unguided media Learn how protocols enable networking 2 Objectives
Contents. Introduction to Networking. Preface...i. Introduction... xix
Contents Introduction to Networking Introduction to Networking Preface...i Key Topics...i Course Objectives...ii Pedagogical Features...ii Learning Objectives, Unit Summaries, Discussion Questions, and
OSI Reference Model. Computer Networks lab ECOM Prepared By : Eng. Motaz Murtaja Eng. Ola Abd Elatief
Islamic University of Gaza Faculty of Engineering Computer Engineering Department Computer Networks lab ECOM 4121 OSI Reference Model Prepared By : Eng. Motaz Murtaja Eng. Ola Abd Elatief May /2010 OSI
Networking. Bin Li Assistant Professor Dept. of Electrical, Computer and Biomedical Engineering University of Rhode Island
Networking Bin Li Assistant Professor Dept. of Electrical, Computer and Biomedical Engineering University of Rhode Island Why is Networking Needed? To enhance many devices Cars communicating to reduce
ITP 140 Mobile Applications Technologies. Networks
ITP 140 Mobile Applications Technologies Networks A First Look Under the Hood 2 3 Communication Channels Mediums for transporting data from one system to another Physical Twisted Pair (CAT-3, CAT-5/6)
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?
Lecture (03) Network Model
١ Lecture (03) Network Model By: Dr. Ahmed ElShafee Agenda Layering concept History Discovering the network layers Application Layer same layer interaction concept; Transport Layer Adjacent layer interaction
WAN Technologies CCNA 4
WAN Technologies CCNA 4 Overview Note: Most of this will be described in more detail in later chapters. Differentiate between a LAN and WAN Identify the devices used in a WAN List WAN standards Describe
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.
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
CS3600 SYSTEMS AND NETWORKS
CS3600 SYSTEMS AND NETWORKS NORTHEASTERN UNIVERSITY Lecture 17: Internet architecture Prof. Alan Mislove (amislove@ccs.neu.edu) Slides used with permissions from Edward W. Knightly, T. S. Eugene Ng, Ion
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
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,
System Programming. Introduction to computer networks
Content : by Dr. B. Boufama School of Computer Science University of Windsor Instructor: Dr. A. Habed adlane@cs.uwindsor.ca http://cs.uwindsor.ca/ adlane/60-256 Content Content 1 Introduction to Computer
ACL Rule Configuration on the WAP371
Article ID: 5089 ACL Rule Configuration on the WAP371 Objective A network access control list (ACL) is an optional layer of security that acts as a firewall for controlling traffic in and out of a subnet.
CSE 123A Computer Networks
CSE 123A Computer Networks Winter 2005 Lecture 3: Protocols & Layering Alex Snoeren (standing in for Stefan Savage) Yesterday How to send data from point A to point B? January 13, 2005 CSE 123A -- Lecture
Time : 3 hours. Full Marks: 70. The figures in the margin indicate full marks. Answer from all the Groups are directed. Group A.
COPYRIGHT RESERVED End Sem (III) MCA (XVIII) 2017 Time : 3 hours Full Marks: 70 Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate
Network Architecture Models
School of Business Eastern Illinois University Network Architecture Models (September 8, 2009) Abdou Illia, Fall 2009 Learning Objectives 2 Discuss the OSI reference Model Discuss the Internet Model Compare
University of Human Development College of Science and Technology Department of Information Technology. Data Communication and Networking
University of Human Development College of Science and Technology Department of Information Technology Data Communication and Networking 1 Course Administration and Policies (cont.) Studying slides is
PROGRAMMING Kyriacou E. Frederick University Cyprus. Network communication examples
ACSC424 NETWORK APPLICATION PROGRAMMING Kyriacou E. Frederick University Cyprus communication examples The OSI reference model (proposed by ISO) Application A Application B 2 Application Application Presentation
Router Router Microprocessor controlled traffic direction home router DSL modem Computer Enterprise routers Core routers
Router Router is a Microprocessor controlled device that forwards data packets across the computer network. It is used to connect two or more data lines from different net works. The function of the router
Introduction to Networks
Introduction to Networks Khaled Harras School of Computer Science Carnegie Mellon University 15-349 Computer and Network Security Fall 2012 Some material borrowed from Hui Zhang and Adrian Perrig 1 Early
Typical Network Uses
Computer Networks Introduction The next Great Revolution - Computer Networks- computers connected together for exchanging information Our information-oriented society - applications in education, commerce,
Layering in Networked computing. OSI Model TCP/IP Model Protocols at each layer
Layering in Networked computing OSI Model TCP/IP Model Protocols at each layer Learning outcomes Understand the need of layering in Networked computing Understand the OSI model and the tcp/ip model Understand
Cisco Cisco Certified Network Associate (CCNA)
Cisco 200-125 Cisco Certified Network Associate (CCNA) http://killexams.com/pass4sure/exam-detail/200-125 Question: 769 Refer to exhibit: Which destination addresses will be used by Host A to send data
Imi :... Data:... Nazwisko:... Stron:...
Imi :.................................................... Data:....................... Nazwisko:............................................... Stron:...................... 1. Which of the following protocols
Chapter 15 Networks. Chapter Goals. Networking. Chapter Goals. Networking. Networking. Computer network. Node (host) Any device on a network
Chapter Goals Chapter 15 Networks Describe the core issues related to computer networks List various types of networks and their characteristics Explain various topologies of local-area networks Explain
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
Protocol Layers & Wireshark TDTS11:COMPUTER NETWORKS AND INTERNET PROTOCOLS
Protocol Layers & Wireshark TDTS11:COMPUTER NETWORKS AND INTERNET PROTOCOLS Mail seban649@student.liu.se Protocol Hi Hi Got the time? 2:00 time TCP connection request TCP connection response Whats
Chapter 4: Network Access. Introduction to Networks v5.1
Chapter 4: Network Access Introduction to Networks v5.1 4.0 Introduction 4.1 Physical Layer Protocols 4.2 Network Media 4.3 Data Link Layer Protocols 4.4 Media Access Control 4.5 Summary 2013 Cisco and/or
networks List various types of networks and their
Chapter 15 Networks Chapter Goals Describe the core issues related to computer networks List various types of networks and their characteristics Explain various topologies of local-area networks Explain
We are going to see a basic definition of the devices you can find in a corporate wired network, so you can understand basic IT engineering jargon.
Computer network devices, also known as communication devices, are the backbone of a data communication network. In this category we can find routers, switches, hubs, LAN cards, gateways, modems, hardware
ITP 140 Mobile Applications Technologies. Networks
ITP 140 Mobile Applications Technologies Networks A First Look Under the Hood 2 3 Communication Channels Mediums for transporting data from one system to another Physical Twisted Pair (CAT-3, CAT-5/6)
Chapter 1: Introduction
EE4272: Computer Networks Chapter 1: Introduction Instructor: Tricia Chigan Dept.: Elec. & Comp. Eng. 1) Data Communications: Deals with the transmission of signals in a reliable & efficient manner. Topics:
SYSTEMS ADMINISTRATION USING CISCO (315)
Page 1 of 11 Contestant Number: Time: Rank: SYSTEMS ADMINISTRATION USING CISCO (315) REGIONAL 2016 Multiple Choice: Multiple Choice (50 @ 10 points each) TOTAL POINTS (500 points) (500 points) Failure
Data & Computer Communication
Basic Networking Concepts A network is a system of computers and other devices (such as printers and modems) that are connected in such a way that they can exchange data. A bridge is a device that connects
31270 Networking Essentials Focus, Pre-Quiz, and Sample Exam Answers
31270 Networking Essentials Focus, Pre-Quiz, and Sample Exam Answers CONTENTS Focus Questions... 2 Chapter 1: Explore the Network... 2 Chapter 2: Configure a Network Operating System... 5 Chapter 3: Network
Networking. Networking and Communication Trends Convergence (Accessibility) Speed Stability Simplicity* Embeddedness
Networking and Communication Trends Convergence (Accessibility) Speed Stability Simplicity* Embeddedness What is a Computer Network General definition Related hardware Network Interface Card Network Operating
CS1302-COMPUTER NETWORKS UNIT I -DATA COMMUNICATION PART A
SHRI ANGALAMMAN COLLEGE OF ENGINEERING & TECHNOLOGY (An ISO 9001:2008 Certified Institution) SIRUGANOOR,TRICHY-621105. DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING CS1302-COMPUTER NETWORKS Year/Sem:
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
Defining Networks with the OSI Model. Module 2
Defining Networks with the OSI Model Module 2 Objectives Skills Concepts Objective Domain Description Objective Domain Number Understanding OSI Basics Defining the Communications Subnetwork Defining the
Data Communication & Computer Networks MCQ S
Data Communication & Computer Networks MCQ S 1. The translates internet domain and host names to IP address. a) domain name system b) routing information protocol c) network time protocol d) internet relay
Copyleft 2005, Binnur Kurt. Objectives
1 ing Fundamentals Copyleft 2005, Binnur Kurt Objectives Define basic networking terms Describe some commonly used network applications Describe the main purposes and functions of computer networking Describe
Lecture (02) Network Protocols and Standards
Lecture (02) Network Protocols and Standards Dr. Ahmed M. ElShafee 1 Agenda - - 2 Preface Protocols and standards are what make networks work together. Protocols make it possible for the various components
CS 428/528 Computer Networks Lecture 01. Yan Wang
1 CS 428/528 Computer Lecture 01 Yan Wang 2 Motivation: Why bother? Explosive growth of networks 1989, 100,000 hosts on the Internet Distributed Applications and Systems E-mail, WWW, multimedia, distributed
MiPDF.COM. 1. Convert the decimal number 231 into its binary equivalent. Select the correct answer from the list below.
CCNA1 v6.0 Pretest Exam Answers 2017 (100%) MiPDF.COM 1. Convert the decimal number 231 into its binary equivalent. Select the correct answer from the list below. 11110010 11011011 11110110 11100111* 11100101
INTRODUCTORY COMPUTER
INTRODUCTORY COMPUTER NETWORKS LAYERING Faramarz Hendessi Introductory Computer Networks Lecture 3 Fall 2010 Isfahan University of technology Dr. Faramarz Hendessi 2 Layering What is it? Building complex
Computer Networks
15-441 Computer s Lecture 3 Professor Hui Zhang Wean Hall 7126 hzhang@cs.cmu.edu 1 Review of Lecture 1 How long does it take to move 1GB data from campus to your home? 56Kbps modem 2Mbps DSL Other possibilities?
Networking and Health Information Exchange Unit 1a ISO Open Systems Interconnection (OSI) Slide 1. Slide 2. Slide 3
Slide 1 Networking and Health Information Exchange Unit 1a ISO Open Systems Interconnection (OSI) Networking and Health Information Exchange Unit 1a ISO Open Systems Interconnection (OSI) Slide 2 Unit
Computer Networks. Computer Networks. Telecommunication Links. CMPUT101 Introduction to Computing - Spring Chapter 12: Computer Networks 1
Computer Networks Chapter 12 Topics: Communication links LAN / WAN Internet / WWW CMPUT101 Introduction to Computing (c) Yngvi Bjornsson 1 Computer Networks A computer network is a set of independent computer
Networking and Internetworking 1
Networking and Internetworking 1 Today l Networks and distributed systems l Internet architecture xkcd Networking issues for distributed systems Early networks were designed to meet relatively simple requirements
Chapter 8 OSI Physical Layer
Chapter 8 OSI Physical Layer Upper OSI layer protocols prepare data from the human network for transmission to its destination. The Physical layer controls how data is placed on the communication media.
Component Function Example
Network Components Component Names Component Function Example Application, or app, user Uses the network Skype, itunes, Amazon Host, or end-system, edge device, node, source, sink Router, or switch, node,