Computer network Essays & Research Papers

Computer Networks NETWORKING CONCEPTS Network A network is basically an interconnection of various points to make a connected system e.g Road, Telephone, Social Data Network A computer network therefore refers to an interconnection of computers and other peripherals by use of a communication link Peer to Peer Networks In a peer-to-peer network, all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are...

CS601: Computer Networks lab EXERCISE - 1 Write a Program in C/ C++ for error detecting code using CRC-CCITT (16 bit) Objective: To enable the receiver of a message transmitted through noisy channel to check whether the message has been corrupted. The aim of an error detection technique is to enable the receiver of a message transmitted through noisy channel to determine whether the message has been corrupted. To do this, the transmitter constructs a value called a checksum that is the...

NETWORK Computer Network also called Network is a group of computers and other devices connected to each other to share resources electronically. Networks can be as small as two computers or many thousand computers that are connected to one another. These computers are usually connected to one another through wires, satellite, and modems. Each device connected to the network is called a “node”, and the computer that is connected to the network is called a workstation. There are...

University of Technology, Jamaica School of Computing & Information Technology INTRODUCTION TO COMPUTER NETWORKS Handout #1 COMPUTER NETWORK - A communication system that allows computers to exchange information with each other in a meaningful way. - A collection of computers and devices, connected by communication channels that facilitate communications among users, and allows users to share resources with other users - Networks may link computer...

CS T53 COMPUTER NETWORKS UNIT I Introduction to Computer Networks: Need for Networking - Service Description – Connectionless and Connection-Oriented Services – Circuit and Packet Switching – Access Networks and Physical Media – Wireless Links and Characteristics – Queuing Delay and Packet Loss – Internet Protocol stack – OSI Reference Model - Service Models – History of Computer Networking and the Internet. UNIT II Application Layer: Principles of Network Applications – The Web and...

Computer Network A computer network is a number of computers linked together to allow them to share resources. Networked computers can share hardware, software and data. Most computer networks have at least one server. A server is a powerful computer that provides one or more services to a network and its users. For example, file storage and email. LANs and WANs There are two main types of network: 1. Local Area Network (LAN) 2. Wide Area Network (WAN) LAN A LAN covers a small area...

Enterprise network design Name Number Course Tutor Date The enterprise network system is made up of a set of local area networks interlinked through a wide area network. Such a network system is made up of several networking devices such as routers, gateways and switches. An enterprise network is always managed by the organization 1. Enterprise Network Design Model The network design model is particularly crucial when it...

I am proposing to write about becoming a network and computer systems administrator, one of the reasons I chose this field to do my final project on is I am already in this field of work and feel that I have a fairly good background and plenty of information to share with others. I started in the Information Technology field in 2000 as a System Support Specialist for a fairly good sized Insurance Company. I have always like computer and figuring out what makes them work so when I had the...

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...

COMPUTER NETWORKS Assignment NAME: __________________________________________ SEAT #_______ SCORE:____ CASE STUDY: Analyzing Physical Layer Part 1` Mining Enterprise is a small company with 15 employees. They have just opened shop in a small office complex. They need to install a LAN, because they have an information database that all the employees use,, for purpose of payroll, accounting, and for the geological informational database. Because money is fairly tight, the company...

Computer Communications: Bus Network Bus Network, in computer science, a topology (configuration) for a local area network in which all nodes are connected to a main communications line (bus). On a bus network, each node monitors activity on the line. Messages are detected by all nodes but are accepted only by the node(s) to which they are addressed. Because a bus network relies on a common data "highway," a malfunctioning node simply ceases to communicate; it doesn't disrupt operation as...

| | ROAMWARE “CASE STUDY” Presented By:- Name: - ROLL NO. PRASAD B. DHAVADE. 10 SUMIT V. TIRLOTKAR. 56 Case study submitted in Second year for the degree of BACHELOR OF SCIENCE Branch: INFORMATION TECHNOLOGY Of University of...

Security of Computer Network System Abstract: This paper discussed the secure and dependable problem about the computer network system. On some aspects: the importance of network security, basic theory, function, and the method of solving a problem, etc. Good views for solving the problem are put forward. It strengthens people’s consciousness on network security. Key words: Computer network Virtual private network Encryption techniques Firewall ...

Exercise 2.3.1 LAN – Local Area Network – within a building MAN – Metropolitan Area network – larger than a LAN, smaller than a WAN PAN – Personal Area Network – less than 30 feet WAN – Wide Area Network – collection of LANs geographically spread over large distance Exercise 2.3.2 Network Topology – A drawing of a series of connected nodes via links, including descriptions. Exercise 2.3.3 It would take 1 (hop) message to send a message from node A to node B. It would take 3 (hop)...

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...

Bishop’s Centenary College (St. Cecilia’s) Wednesday 3rd October, 2012 Electronic Document Preparation and Management Project 1- Ms Douglas Form- 4B1 Topic: Build a Computer Network Table of Contents Build a computer Network ……………………………………………………….. 1 What is a computer…….……………………………………………………………. 2 (b) What are the main types of computers used in a Network? … 2 What is a Network…………………………….…………………………………… 3 What hardware and software is found in a computer network……….....

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...

Chapter 11 Enterprise Resource Planning Systems 1. Closed database architecture is a. a control technique intended to prevent unauthorized access from trading partners. b. a limitation inherent in traditional information systems that prevents data sharing. c. a data warehouse control that prevents unclean data from entering the warehouse. d. a technique used to restrict access to data marts. e. a database structure that many of the leading ERPs use to support OLTP applications. 2. Each of the...

Network and Computer Systems Administrator Sage Marolf Everest Online University Network and Computer Systems Administrator When I got my first computer as a young teenaged boy I knew right then that I wanted a career working in the field of computer technology. The network and computer systems administration filed has a high growth rate growth rate of 28% and an average salary of $69,160 per year and is full of many opportunities. As a Systems Administrator you need...

Computer Network Specialist Abdool Samad GLC2O0-B Mr. Shin Nov. 6th , 2013 The reason I have chosen a Computer Network Specialists is because I love computers of what they do and what they are capable of doing and how it has helped the humans thrive and succeed in ways other species can’t. Computer Network Specialists develop, install, and maintain the networks that connect computers to each other. Their duties are to set-up computers and...

Question : Discuss the goals of computer networking in the business and any three topologies and which one you would recommend for your organization and why. Computer networking is when a set of electronically connected computers can share information and resources amongst themselves, and also define how this sharing is going to take place this is according to (www.technopedia.com). It creates borderless interrelationships .it is a practice that is adopted by most business organizations...

BUS TOPOLOGY 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...

 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...

COMMUNICATION AND COMPUTER NETWORK 4.1 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 of data communication facilities. The communication between computers has increased and it thus it has extended the power of computer beyond the computer room. Now a user sitting at one place can communicate computers of any remote sites through communication channel. The aim of this...

Question 1: Define and explain the following terminologies: Computer network; Personal area networks; Local area networks; Metropolitan area networks; Wide area networks; Data communications; Multiplexing; Network management. Computer network: A computer network is an interconnection of devices, generally computing assets in this case via physical wires or wireless mediums that use radio waves. This interconnection allows for the transmission of data and information from one point...

 Syllabus College of Information Systems & Technology IT/240 Version 4 Intro to LAN Technologies Copyright © 2012, 2009, 2007 by University of Phoenix. All rights reserved. Course Description This foundational course covers local area network topics including rationale for networking, the open systems interconnection (OSI) model, common network topologies and architecture, client/server concepts, basic hardware devices and usage, and basic networking security concepts. Policies...

Abstract In today’s ever changing market, the Information Technology professional remains in high demand. In practically every career field, businesses are moving toward a paperless system which will require the use of computers, data storage and servers. With this said, the IT professional will need to be familiar with not just the IT portion of their job, but the ins and outs of the professions they work for. From the medical to the musical career, an IT professional can assist in the day...

Introduction: CareGroup was established in 1996 from a three-way merger of several hospitals in the eastern Massachusetts area. The merger was driven by the intense financial pressure and competitiveness in the healthcare community. CareGroup was the second largest hospital group in the area, and was a force to be reckoned with in the war of medical costs that included healthcare providers and employers. Problem: On Nov 13, 2002, a researcher executed an application without terminating it,...

Axia College Material Appendix A Final Project Overview and Timeline Final Project Overview You have been hired to set up a local area network with a firewall for a Windows® network at a medium-sized company, Taylor & Sons Financial Consulting. The network will have 100 users and 10 applications used extensively by 80 of the employees. Ten of the employees are clerks and should have read-only access to the databases generated by the applications. The owner is worried about security and...

1. Scalabilit y refers to the ability of a computer, product, or system to be available 24/7 for constant use without breaking down. (True/False) 2. Software that manages the resources of the computer is called A) operating system software. B) application software. C) data management software. D) network software. 3. Reducing computer power consumption is a top priority for grid computing. (True/False) 4. The network standard for connecting desktop computers into local area networks...

IT220 Chapter 7 1.What’s a routing table? Keeps track of the routes to use for forwarding datat to its destination 2. What is the most common static route used in a host computer? Default gateway 3. What command is used to view a PC computer's routing table? Netstat –r /route prints 4. What is meant by a O.O.O.O network address entry with a subnet mask of 0.0. 0.0. in a PC's routing table? Default route 5. What is the 127.0.0.1 IP address and what is it used for?loopback, the...

Network security Security has moved to the forefront of network management and implementation. The overall security challenge is to find a balance between two important requirements: the need to open networks to support evolving business opportunities, and the need to protect private, personal, and strategic business information. The application of an effective security policy is the most important step that an organization can take to protect its network. It provides guidelines about the...

Objective: 1. Provide knowledge of computer communications from user point of view in the context of local area network. 2. Explain the basic concepts of communications within Local Area Network with emphasis on access techniques and basic protocol. 3. Providing user services Assignment Overview: * This is an individual assignment * The student must produce a written report and must be submitted on the dateline * The student expected to present the assignment Question:...

NETWORK TYPES LAN - Local Area Network A LAN[->0] connects network devices over a relatively short distance. A networked office building, school, or home usually contains a single LAN, though sometimes one building will contain a few small LANs (perhaps one per room), and occasionally a LAN will span a group of nearby buildings. In TCP/IP networking, a LAN is often but not always implemented as a single IP subnet. In addition to operating in a limited space, LANs are also typically owned,...

* Why are switches needed in a network? * Why are routers needed in a network? * Explain the difference between a collision domain, a broadcast domain, and network segmentation. * Describe one method for segmenting collision domains and one method for segmenting broadcast domains, including explaining what equipment would be needed and how it would be configured. A switch is a hardware device that manages the sharing of multiple computers or multiple networks on the same connection....

 Networks During the Program Student Worksheet 1 What are networks? 1. Describe the purpose of networking computers. 2. Describe the two types of network: a. LAN b. WAN 3. List the core business functions of Destra. 4. As a retailer, describe how Destra is different to more traditional retailers. 5. What does Destra's network consist of? 6. What is VPN and what is its purpose? 7....

1. What are the advantages of networking computers together? There are two advantages to networking computers: access to information, and access to equipment. 2. Identify one disadvantage of networking computers together. The disadvantages of networking computers are hacking and pirating in the networks is very easy and it can lead to information damage or robbery and also if one compute is affected by a virus it can spread to the other easily. 3. What technology allows computer networks...

 Kirk Samuda University of Phoenix October 14, 2013 NTC/362 Securing a Hospital's Computer Network The strategic identification of hardware and software needed to secure the hospitals network against most electronic threats, would be designed and implemented around the premise of a more robust and inclusive collective network infrastructure, with faster data access. To commence this exercise, adequate consideration must be given to the business...

Patton-Fuller Community Hospital Joshua Harris NTC/362 August 9th, 2012 Richard Douglass Patton-Fuller Community Hospital ”Patton- Fuller Community Hospital has prided itself on providing top-of-the-notch not-for-profit health care organization since their opening in 1975” (University of Phoenix, 2012). The hospital’s specialty is in providing high-quality health care to all patients, and establishing peaceful work relationships within the staff. Services...

“DESIGN EXCHANGE OF THE SINGLE CHIP MULTI-COMPUTER NETWORKS” Abstract Submitted in Partial fulfillment of the requirement for the degree of DOCTOR OF PHILOSOPHY IN COMPUTER SCIENCE by Chandra Shekhar Enrollment No:- ____________ Under the Supervision of Dr. Mohammad Hussain Professor, AIET, Lucknow COMPUTER SCIENCE Sai Nath University Ranchi, Jharkhand Year of Submission: ______ Introduction A recent trend in high performance computing (HPC) has been towards the use of...

PROPOSAL TO PURSUE A CAREER IN NETWORK AND COMPUTER SYSTEMS ADMINISTRATOR INTRODUCTION Purpose This proposal is to encourage high school student to pursue a career in network and computer systems administrator. Scope This report present information on network and computer systems administrator, a description of the career, the advantages of the career and the reasons to pursue a career in the professional field. BACKGROUND Job Description Network or computer...

Network Topologies Week 6 Management of Information Systems There are three primary types of network topologies, which refer to the physical and logical layout of the network cabling. They are the bus, star and ring. Bus and star are the most widely used for Ethernet networks and ring is used for token ring networks. The topology is the networks virtual shape or structure. The shape, ring, bus or star, does not necessarily correspond to the actual physical layout of the devices....

COMPUTER | NETWORK AND COMMUNICATION | | NOTES | | | | | INDEX (COMMUNICATION AND NETWORK CONCEPT) I.NETWORK II.EVALUATION OF NETWORKING 1.ARPANET III. SWITCHING TECHNIQUES 1. CIRCUIT 2. PACKET 3. MESSAGE IV.TRANSMISSION MEDIA: Two types of media GUIDED MEDIA 1.TWISTED PAIR CABLE...

Executive SummaryThe objective at hand was to build a network from the ground up. This was accomplished by breaking down all of the sections and building upon all previous assignments. This was a good course as I learned a lot about all of the different sections of building a network. The pros are now I know how to build a network on the design side from the ground up. I learned quite a bit about using a lot of the technologies associated with networking and it allowed me to learn quite a few...

Bead Bar Network Paper University of Phoenix Online   Bead Bar Network Paper The Bead Bar is a company that allows customers to make their own jewelry. The company consists of many branches throughout the United States, franchises, and cruise ship contracts. The Bead Bar has grown exponentially since the building of the first studio in New Canaan, Connecticut. Due to the growth of the business, the company’s current system of processing and storing information is grossly outdated. The Bead...

iLab Grading Rubric Category | Points | Description | Introduction | 10 | Introduce the objective and goal(s) for the report. | Manufacturer | 5 | Provide the manufacturer of the selected equipment. | Model number | 5 | Provide the model number of the selected equipment. | Cost | 5 | Provide the cost for the piece of required equipment. | Mounting | 5 | Explain how the equipment is mounted to a building. | Speed | 5 | Provide the maximum speed that each link will be able to...

“Wireless Network” A wireless network is any type of computer network that uses wireless data connections for connecting network nodes. Wireless networking is a method by which homes, telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations.[1] Wireless telecommunications networks are generally implemented and administered using radio communication. This...

INTRODUCTION In today’s modern world computer networks are the basic source of information exchange for all types of businesses. Different technologies are used within the context of networking depending on the requirements of an organization. Ethernet is off course the best technology for the “local area network” (LAN), but when the organization spread their business to much longer distances (cities) then WAN technologies need to be deployed to keep the business running. The selection of an...

NETWORK TYPES Esteban Solorzano-Vivar Wilmington University WIS.200.B2N01.SP2013 March 13, 2013 Introduction In today’s world, computers have had a quite impressive evolution. Computers are not only needed to do homework, but they have also become essential tools for work, social life, and everyday tasks. With the help of technology, computers now allow us to share information (emails, documents, etc.), resources and software applications in just seconds. This sharing often occurs...

Network Design Rodney T Caldwell NTC/362 November 28, 2012 Marjorie Marque Network Design In this paper I will explain what Kudler Fine Foods need to do so the company can make a business decision on what course of action to take to upgrade the infrastructure of their current network. The network Kudler is using is called a bus topology that uses a common backbone to connect all devices. If one of the systems on the network wants communicates to another system, it broadcast a...

Network Expansion The fundamental characteristics and components of the a network of communications is well put together and is suited to their needs to support three stores. The Kudler network is small and only automated at the store level. In analyzing the current network setup, a determination will be made on a new network design. This will better automate the network communications between all physical locations of Kudler Fine Foods. Kathy Kudler’s business is still growing with...

EE 607: Advanced Network Algorithms Spring 2009 Last updated: Jan 9, 2009 ❑ Instructor: Galen H. Sasaki. Email: sasaki@spectra.eng.hawaii.edu. Tel: 348 9432 (cell). Office: Holmes 436. Office Hours: MW 1:45-2:45. ❑ Days and Times: MW 12:30-1:45pm (May change if we can find a room and days/times) ❑ Room: Holmes 389 ❑ Brief Course Description: The course will cover algorithms that are used in network research and implementation. These include graph algorithms, transmission...

TYPES OF COMPUTER NETWORKS Maninder Kaur professormaninder@gmail.com What is 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. • The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams. Different Types of Networks • Depending upon the geographical area covered by a network, it is classified as: –...

Network Design In this paper I will be going over a network design proposal for a building on the UMUC campus in Adelphi, Maryland. I would plan to run a fiber optic network to ensure the fastest speeds possible and fiber optics are notorious for not having any signal loss compared to a Cat5e. Using a star topology throughout the building with the servers in each classroom connected to the server room on the respective floor. Equipment used to build the network will consist of servers, routers,...

Running Head: NETWORK TOPOLOGIES Network Topologies Kaplan University IT273: Networking Concepts August 21, 2013 The topology I would recommend for the Surfing Shoppe Lab is the Star topology. The seven computers would connected via a centralized device called a switch. Since the star topology has a central connection point, this design is more flexible than a ring or bus topology which requires every node to be directly connected to one another node or...

Networking Devices Maigue, Melleghie Claire T. EE1 - 1/ES1 - 1 Networking Devices ... Hub - commonly used to connect segments of a LAN. A hub contains multiple ports. When a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets. Networking Devices ... Multistation Access Unit (MAU) - a hub or concentrator that connects a group of computers ('nodes' in network terminology) to a token ring local area network. Networking Devices ......

 Types of Networks Title of Paper Networks are the connections between two devices. How they are interconnected changes the type of network, while the principle is the same as our communication. Networks are made to exchange information in the shortest path possible with the best replication of the original data. Local Area Networks (LAN), Wide Area Networks (WAN), Campus Area Networks (CAN), Metropolitan Area Networks (MAN) and Home Area Networks (HAN) are all varieties of how devices...

IPv4 and ipv6 Differences IPv6 Optional Extras: Fixed length (40 Bits, as opposed to 32), but able to extend Header change to aid QoS Checksum: Removed checksum to reduce processing time at each hop. Motivation: Requirement of large number of addresses Stateless Auto-configuration Anycast address route to “best” of several servers – (No broadcast) provides flexibility where we don’t care about which route the data goes through Route Optimization: necessary to improve the internet...

line 1. INTRODUCTION Wireless ad hoc networks have emerged to support applications, in which it is required/desired to have wireless variety of devices without relying on communications among a any infrastructure or central management. In ad hoc networks, wireless devices, simply called nodes, have limited transmission range. Therefore, each node can directly communicate with only those within its transmission range (i.e., its neighbours) and requires other nodes to act as routers in...

What are the advantages and disadvantages of network processors, such as hubs, switches, routers, and gateways? Well the advantages of hubs are they allow nodes to connect to one another that will create a physically attached network and a less expensive than other network devices while being easy to setup. But being an easy-to-use device that broadcast to all ports can be really unsecured for many applications. Lastly the bandwidth is shared by all the PC’s connected to the hub which slows...

Optical Network Solutions planning - performance - management Christian Fenger PhD thesis Author: Christian Fenger Title: Optical Network Solutions planning - performance - management Dansk titel: Optiske netværksløsninger planlægning - effektivitet - styring PhD thesis June 2002 Reseach Center COM Technical University of Denmark DK–2800 Kongens Lyngby Denmark Front cover: Result of optimization of a 25 node network with biconnectivity requirement. Traffic is uniform, duct prices equal...

Top-Down Network Design Third Edition Priscilla Oppenheimer Priscilla Oppenheimer Cisco Press 800 East 96th Street Indianapolis, IN 46240 ii Top-Down Network Design Top-Down Network Design, Third Edition Priscilla Oppenheimer Copyright© 2011 Cisco Systems, Inc. Published by: Cisco Press 800 East 96th Street Indianapolis, IN 46240 USA All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including...

Network Topologies Network topologies are an important part of the network. Without the proper topology, the network may not meet the needs of the organization. The layout of a network is referred to as the topology. How nodes in a network are connected to each other and communicate is determined by the topology. There are three basic topologies with several typical variations, or combinations. A description of four topologies follows. Mesh Topology Mesh topology is the first topology...

Candidate: Module: Enterprise Networking Programme: BSc Information Systems Case Study: Network Design for China Steel Ltd Table of Contents Introduction 3 Network Diagrams 3 Inter-Site Connections (WANS) 3 Leased Line 4 Circuit Switching 4 ISDN 4 Packet Switching 5 MPLS 5 VPN (Remote Access) 6 Inner-Site Connections (LANS) 6 Physical & Data Link Protocols 6 LAN...

Lecture 6 Telecommunications And Networks Learning Objectives Understand the concept of a network. Apply Metcalfe’s law in understanding the value of a network. Identify major developments and trends in the industries, technologies, and business applications of telecommunications and Internet technologies. Provide examples of the business value of Internet, intranet, and extranet applications. Learning Objectives Identify the basic components, functions, and types of...

ESSAY ON LAN NETWORK • DEFINITION OF LAN • HARDWARE COMPONENTS OF LAN • SOFTWARE COMPONENTS OF LAN • DESCRIPTION OF EACH COMPONENT • DIFFERENT TOPOLOGY IN LAN • ADVANTAGES AND DISADVANTAGES OF EACH TOPOLOGY LAN : The typical definition of Local Area Network (LAN) is "two or more connected stations (PCs, servers, computer…) in the same limited area, sharing data and peripheral devices, and operating .The most popular LANs include 10 Mbps & 100 Mbps Ethernet, 4...

Firewall Quiz 1. A(n) hub____ is a standard network device for connecting multiple Ethernet devices together by using twisted-pair copper or fiber-optic cables in order to make them function as a single network segment. 2. A(n) Router____ is a network device that can forward packets across computer networks. 3. A(n) Proxy server____ is a computer or an application program that intercepts a user request from the internal secure network and then processes that request on behalf of the user. 4....

Network Security Imandi kheerthi Pandranki Divya Revathi III/IV B.E. CSE III/IV B.E. CSE Department Of Computer Science Engineering, Department Of Computer Science Engineering, Dr. L. Bullayya College of Engineering For Women,...

Network Design Companies have issues when designing a network that provides access to data and information in a safe and secure environment. A small retail chain store Kudler Fine Foods sells various products and is upgrading the network to monitor and secure information. Kudler Fine Foods has three locations and needs to communicate data quickly so that customer’s accounts are updated and stores can manage inventory. The central network server is located at the home office in La Jolla,...

I have decided to pursue the career of a network system administrator or IT professional. Over the last ten years or so computers have become fundamental parts of everyday life, used for a variety of reasons at home, in the workplace, and at schools. Of course every computer user runs into obstacles from time to time, whether it is the blue screen of death, the forgotten password, or the loss of important data. The explosive use of computers has created a high demand for specialists to provide...

Problems with Formal Networks Formal networks are defined, setup and maintained by the organization. They are put into place to make sure information, resources, problems and punishments are used efficiently and not abused. When these networks are used properly everything will flow up and down the chain of command smoothly. This chain of command comes from the basic principle of a formal network; assigning titles to employees and to give them a certain amount of responsibility to go along...

The term “topology” in networking refers to the configuration of cables, computers, and peripherals. The six common used topologies in networking are: bus, star, ring, mesh, tree, and hybrid. The three major topologies that I will be discussing further in detail are: bus, star, and ring topology. Bus topology is probably considered the easiest of the network topologies. In a bus topology, the devices are connected to a central cable called the bus. The bus cable carries the transmitted...

Today, it is likely that Machine-to-machine (M2M) architectures are the future of computer networks. These communication systems promise new strains of pervasive services and a better awareness of the world around us. However, they suffer several limitations caused by the very nature of their components: a low data-rate, unreliable transmissions, limited storage and processing capabilities, finite lifespan and unpredictable delays often caused by a high packet loss rate. These are the same...

Objective: The main objective of the research paper is to illustrate most common network threats and provide solution to protect users from threats, hackers and ensures that the data travelling across the networks is safe. Introduction: Computer and network security is a new and fast moving Technology and as such, is still being defined and most probably will always be “still defined”. Security incidents are rising at an alarming rate every year [Figure - 1]. As the complexity of the threats...

The proposed network is designed to serve The Banana Tree Travel Agency and remote site office. The proposed office located in Cairo, Egypt will have two employees to better serve their international customers. The second site will have a 12 port patch panel, a 12 port Cisco switch, a Cisco router, and a Cisco ASA. The building adjacent to the main office, which is part of the same domain/network, will house 10 to 15 more travel agents. I will set up a file server so all users can have access...

 Establish Networks BSBREL401A For this task, you are to identify 3 different opportunities for networking that will be of benefit to your current vocation and your professional development. You should consider investigating the benefits of the following potential networks. Advisory committees Colleagues Committees Government agencies Internal/external customers Lobby groups Local inter-agency groups Other organizations...

Cambridge TECHNICALS OCR LEVEL 3 CAMBRIDGE TECHNICAL CERTIFICATE/DIPLOMA IN IT COMPUTER NETWORKS R/601/7320 LEVEL 3 UNIT 7 GUIDED LEARNING HOURS: 60 UNIT CREDIT VALUE: 10 COMPUTER NETWORKS R/601/7320 LEVEL 3 UNIT 7 AIM OF THE UNIT This unit aims to give the learners an understanding of the key components, the network protocols and the services provided by network systems. Learners will develop skills required to ensure network security, gain an understanding to the...

Wireless Network A wireless network, as its name would suggest, is a network of computers and computer peripherals that are connected to each other without wires. This enables ease of communication, especially for mobile computing platforms. Further, there are a number of other advantages to a wireless network that make them increasingly common in both the workplace and at home. Nearly all wireless networks in the world work on a standard set up by the Institute of Electrical and...

Hello all, when it comes to designing a wireless network there are four steps to follow the first is the correct deployment scenario like Ad hoc or peer-to-peer, infrastructure, point-to-point and point-to-multipoint remote wireless bridge, Ethernet to wireless bridge, and wireless gate. However, infrastructure is the most commonly used with an access point connected to a wired infrastructure. The second step is to select the IEEE wireless network type 802.11a/b/g/n depending on what type of...

CHAPTER TWO NETWORKING SYSTEMS AND LOCAL AREA NETWORKS (LAN) A network is a system of two or more computers that are connected in some manner. Each computer on the network has access to the files and peripheral equipment (such as printers or modems) on all the other computers on the network. The origin of local area networks can be traced, in part, to IBM terminal equipment introduced in 1974. At that time, IBM introduced a series of terminal devices designed for use in transaction-processing...

 CHAPTER 1 ORGANIZATION PROFILE Snow and Avalanche Study Establishment (SASE) is a laboratory of the Defense Research & Development Organization (DRDO). Located at CHANDIGARH its primary function is research in the field of snow and avalanches to provide avalanche control measures and forecasting support to Armed forces. SASE registered steady growth from 1971 to 1977 and role of SASE was enlarged with the constitution of Advisory Committee....

CHAPTER 3: METHODOLOGY 3.1 Introduction Methodology is a model created to help project developers to plan and schedule their project so that it is more organized and systematic task. It is a method used to breakdown a large project into smaller and more manageable tasks. With methodology as a guideline, each stages of project development will be treated with its needs. It is important for project developers to keep track on the progress of their project. Project developers use...

Category Points Description Section 1 Configuring OSPF Single Area - 30 Points Task 1: Step 5 Related Explanation or Response Task 1: Step 6 Related Explanation or Response Task 1: Step 10 Related Explanation or Response Task 1: Step 19 Related Explanation or Response Summary Paragraph 2 3 2 3 2 3 2 3 10 Paste the requested screenshot Provide the requested answer Paste the requested screenshot Provide the requested answer Paste the requested screenshot Provide the...

Network Components Laurea Pruitt University Of Phoenix March 6, 2011 A computer is a piece of equipment that is used by people to carry out tasks and process. A computer is connected to a network if that computer needs to communicate to another computer on the same network. Computers range in size and processing level. A computer is needed in any wireless network. Price varies from $299.99 to $2,999.99 Cisco .A firewall is directly connected to a network or computer as a device or as...

Which route description best defines a floating static route? a route with a metric equal to the metric of a corresponding dynamic route a route with a metric less than the metric of a corresponding dynamic route a route with a metric greater than the metric of a corresponding dynamic route a route with an administrative distance less than the administrative distance of a corresponding dynamic route a route with an administrative distance greater than the administrative distance of a...

Our topic is that social networks encourage people to have good “interpersonal skills”. According to the research, the most popular method of communication among teens is social network. This format is an opportunity for teenagers to practice and develop social skills. Firstly, social network provides a virtual place to spend time and share thoughts and objects with personal meaning, such as pictures and stories, and remain closely connected with friends regardless of geographic distance. For...

Section 1 Introduction 1.1 COMMUNICATIONS Computer communications is the process of sharing data, programs, and information between two or more computers. We have discussed numerous applications that depend on communication systems, including: • E-mail – Provides a fast, efficient alternative to traditional mail by sending and receiving electronic documents. • Instant messaging – Supports direct, “live” electronic communication between two or more friends or buddies. •...

I. Computer Dynamics Computer Dynamics is a microcomputer software development company that has a 300-computer network. The company is located in three adjacent five-story buildings in an office park, with about 100 computers in each building. The current network is a poorly designed mix of Ethernet and token ring (Ethernet in two buildings and token ring in the other). The networks in all three buildings are heavily overloaded, and the company anticipates significant growth in network traffic....

Table of contents Introduction……………………………..……………..1 Task1 The Media Used…………………………………………………….2 The Connectors Used…………………………..…….2 The Cost of cabling and installation…………………2 Fig. 1…………………………………………………….3 Recommandation……………………………………….4 Task2 Data Transfer rate and/or Memory Storage space..5 Hardware options……………………………………..5 Cost of Purchase and installation…………………...5 Fig .2 ………………………………………………….6 Recommandation……………………………………..7 Task3 Security Issues………………………………………8 Protection...

Computer Architecture and Systems Brian Finn Information Technology 1 Part one Table of Contents Aims…………………………….. 3 Introduction……………………... 4 Plan for the assignment………….. 5 Part 1 (computer system)……....... 6-18 Part 2 (operating system)………... 19-22 Part 3 (networks)………………… 22-27 Part 4 (internet)………………….. 28-34 Conclusion………………………. 34 References……………………… 35 Aims This project will focus on computer system, networks and operating system, then will seek to address...

Routers are Computers A router is a computer, just like any other computer including a PC. The very first router, used for the Advanced Research Projects Agency Network (ARPANET), was the Interface Message Processor (IMP). The IMP was a Honeywell 316 minicomputer; this computer brought the ARPANET to life on August 30, 1969. Note: The ARPANET was developed by Advanced Research Projects Agency (ARPA) of the United States Department of Defense. The ARPANET was the world's first operational...

Computer Networking Type A: Very Short Answer Questions 1. Ans: 2 Ans: 3 Ans: 4 Ans: 5 Ans: 6 Ans: 7 Ans: 8 Ans: 9 Ans: 10 Ans: 11 Ans: Define a network. What is its need?  A computer network is a system in which computers are connected to share information and resources.  Computer networks help users on the network to share the resources and in communication. Write two advantages and disadvantages of networks.  Advantages: 1. Data or information can be shared among the user. 2. Fast...

entExamination Paper: Fundamentals of Computer IIBM Institute of Business Management Semester-I Examination Paper MM.100 Fundamentals of Computer Section A: Objective Type (20 marks) ********************************************************** Multiple Choices: 1. b. 2 types 2. b. 1 or more input signals to produce output 3. d. Both (a) & (c) 4. b. Non-volatile 5. c. Direct-access storage device 6. c. Multiple object program files of...

Lots of people accept the most invention that is computer. While people didn’t need to computers in the days of old, nowadays computers are used almost everywhere. The life without computer is impossible for people. Not only computer but, also internet. We are so much dependent on computers. Although PCs make many things esaier for us, there are some evidence that depending on computers brings negative results. Supporters of dependence on computers a good thing say that we can learn easily...

INTRODUCTION Computer networking is the engineering discipline concerned with the communication between computer systems or devices. A computer network is any set of computers or devices connected to each other with the ability to exchange data. It is sometimes considered a sub-discipline of telecommunications, computer science, information technology and computer engineering since it relies heavily upon the theoretical and practical application of these scientific and engineering...

 Becoming a Network Administrator October 3, 2013 Becoming a Network Administrator I have always had a strong interest in technology and computer networks. After years of strenuous personal deliberation I finally made the decision to focus on obtaining a career as a network administrator. I had to weigh many options in making this decision and ultimately I decided that network administration had more positive aspects than negative. In my deliberations I learned that the network...