UNIVERSITY OF COMPUTER & EMERGING SCIENCE Computer Network Lab ( CS-314) Lab Session 01 Lab Instructor: Shahbaz Siddiqui‚ Shoiab Raza Week 1 Network Command TASK: Use the appropriate networking commands to solve these networking problems. 1. Find the IP address of the computer you are currently using. Command: ________________________________________________________ IP address: ________________________________________________________ 2. Find the IP address of the computer you are currently
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1.1 Firewall in computer networks Firewall: A set of related programs‚ located at a network gateway server‚ which protects the resources of a private network from users from other networks using security policies. The Internet has made large amounts of information available to the average computer user at home‚ in business and in education. For many people‚ having access to this information is no longer just an advantage‚ it is essential. Yet connecting a private network to the Internet can
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COMPUTER NETWORKS 4TH MARCH 2012 Examination Paper Answer ALL questions. Clearly cross out surplus answers. Time: 2 hours Any reference material brought into the examination room must be handed to the invigilator before the start of the examination. ANSWER ALL QUESTIONS Marks QUESTION 1 a) State FOUR (4) principles underpinning the Open Systems Interconnection (OSI) Reference Model. b) Describe the purpose of the physical layer of the OSI Reference Model. c) State THREE (3) elements
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TYPES OF COMPUTER NETWORKS: A computer networks is a communication system connecting two or more computers that work together to exchange information & share resources. A network may consist of microcomputers or it may integrate microcomputers or other devices with large computer. Networks can be controlled by all nodes co-ordinarily & supply all resource. These networks differ in geographical size. There are three important types of networks. 1. Local Area Network 2. Metropolitan Area
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COMPUTER NETWORK ADMINISTRATOR A computer network (the "network") is the connection of at least two or more computers for the purpose of sharing data and resources. These resources can include printers‚ Internet access‚ file sharing‚ and electronic mail ("e-mail"). In today ’s technological environment‚ most companies and businesses have some kind of network used on a daily basis. Thus‚ it is imperative to day-to-day operations that networks run smoothly. Companies employ at least one person
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COMPUTER COMMUNICATION NETWORKS Objectives • • • • • What is telecommunication History of telecommunication Role of telecommunication in Organizations Interpersonal communication applications Computer networks What is telecommunication? “Transmission of data or audible/visible information by electrical/electronic means” e.g. telephone‚ telegraph‚ radio‚ television‚ computer networks (Internet) Basic elements 1. Transmitter : takes information and converts it to a signal 2. Transmission
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A network topology that is generally in a line formation‚ which uses several devices that are all connected to a common central cable called a bus and commonly used for LAN’s. Component Description Usually 2 or more desktop of notebook computers with a network interface card. A common printer is shared by all desktops or notebook computers. The server process requests and delivers data to the client computers over the internet or network.
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world 300 international airports 100+ major stadiums around the world 200+ hospitals around the world Nearly 9 million commercial‚ government and residential customers Communications Methods used by Unlimited Security International 1. Desktop computers – Used by management‚ sales‚ service‚ and administrative workers to conduct daily transactions‚ email‚ and training. 2. Plain old telephone service- Used to conduct routine conversations with customers‚ and field technicians. 3. VoIP – Used to
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NETWORK DESIGN PROPOSAL for OASIS COURIER SERVICES TABLE OF CONTENTS Contents INTRODUCTION 3 The Company Needs 3 LAN Design 4 Topology 6 Media 6 VLAN 6 Internet 7 Servers 7 INTRODUCTION The purpose of this report is to discuss review and elaborate the proposed network design for the company Oasis Courier Services. This report will cover in details the desired the network
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Table of Contents Introduction Below is the report is a report outlining the steps that were undertaken in order to come up with a computer network design that will benefit the company‚ and help improve the security and safety of the company’s information while also improving communication among the four offices. Task 1 To improve my work I could use some images depicting each and every device. Available media…. Wired Media Cable type Types Connectors Unshielded twisted pair Category
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