...Exercise 1 TASK You are setting up a new network for your company. You have a single location with approximately 145 hosts. Plans IT plans should accommodate 50% growth within the next 2 years. Growth 70 – 75 more hosts. What subnet range/s should be used? I would use a Classless addressing and start with a 172.16.0.0 Network address with a Subnet Mask of 255.255.255.0. This gives you 254 hosts per subnet which accommodates for your 50% growth over the next 2 years. For the time being you could use this one subnet and add another down the road if needed. If we add a second subnet down the road, and we are using DHCP, we would also setup a DHCP Relay Agent to relay the DHCP Broadcast messages across both subnets. Should IP addresses be dynamically or statically assigned? While you are setting this up, you can statically assign IP addresses for your servers, routers, firewalls, and printers. The rest of the computers and laptops should be setup to use dynamic IP addresses from DHCP. It should be standard security to have a firewall installed for your network to protect company information. You would have a router setup at access the internet for business purposes. If DHCP is used, should a router, firewall, or Windows Server be utilized and why? I would definitely setup a DHCP server to centrally manage your IP address pool. DHCP gives you a centralized administration point for dynamic IP...
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...Week 2 Exercise. Respond to the following technical support email from a junior IT admin. Dear IT Admin, I am working at a branch office and have been tasked with changing out the DHCP scope to match the overall corporate IP address scheme. The main office assigned me an IP address range of 192.168.0.200 through 192.168.0.225. I changed the scope on Friday afternoon and came in on Monday morning to discover that only some of the workstations had picked up new leases from the new DHCP scope. Any ideas as to what may be happening, what I might check or adjust? Thank you, Junior Admin Dear Junior Admin After reading the problem you are having, I have also run across this issue before and would be glad to offer what advice I can. I know how frustrating this can be especially when you feel like you have done everything right only to have the network get the better of you. A DHCP scope only determines which IP address is allocated to the clients. A scope defines the set of IP address and associated configuration information that can be supplied to a DHCP client. As you are aware a scope must be defined and activated before a DHCP client can use the DHCP server for dynamic TCP/IP configuration. You are more than able to configure as many scopes on a DHCP server as you need on your network environment. You are aware that as a DHCP administrator you can create one or more scopes especially on one or more Windows Server 2008 which is running the DHCP server service...
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...The first alternative will have a special tool developed in C++ that clients will download onto their computers to run. The tool will communicate with the DRUB server to select data to analyze. – This alternative would be client based architecture. The client gives the command to the server. 2. Alternative Two: The second alternative will have the C++ program running on the server; the client will use his or her browser to interact with the server. – This alternative would be two tier thin client server architecture. This requires a web browser, a server and application layer. B) Outline the pros and cons of the two alternatives and make a recommendation to Fred about which is better. Alternative One – Client Based Architecture. Pros: 1. This is an affordable alternative since microcomputers are cheaper than mainframes and it does not take long periods to implement. 2. On a client based architecture, varying hardware manufacturers can cross function. Cons: 1. All data on the server must travel to the client for processing; this can lead to an overload of the circuits on the network since far more data than is needed is usually transmitted. Alternative Two – Two Tier Thin Client Server Architecture Pros: 1. There is a balance of processing since both the server and the client do the same processing making the system an efficient one. 2. Cross functioning is able on client server architecture, so that different software and hardware from different...
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...ITT Technical Institute NT1230 Client-Server Networking I Onsite Course SYLLABUS Credit hours: 4.5 Contact/Instructional hours: 56 (34 Theory Hours, 22 Lab Hours) Prerequisite(s) and/or Corequisite(s): Prerequisite or Corerequisite: NT1210 Introduction to Networking or equivalent Course Description: This course introduces operating principles for the client-server based networking systems. Students will examine processes and procedures involving the installation, configuration, maintanence, troublshooting and routine adminstrative tasks of popular desktop operating system(s) for standalone and network client computers, and related aspects of typical network server functions. Client-Server Networking I Syllabus Where Does This Course Belong? 1st QTR GS1140 NT1110 GS1145 Problem Solving Theory Computer Structure and Logic Strategies for the Technical Professional 2nd QTR NT1210 Introduction to Networking NT1230 Client-Server Networking I MA1210 College Mathematics I 3rd QTR NT1310 NT1330 MA1310 4th QTR PT1420 NT1430 EN1320 5th QTR PT2520 NT2580 EN1420 6th QTR NT2640 NT2670 CO2520 7th QTR NT2799 SP2750 Physical Networking Client-Server Networking II College Mathematics II Introduction to Programming Linux Networking Composition I Database Concepts Introduction to Information Security Composition II IP Networking Email and Web Services Communications Network Systems Administration Capstone Project Group Theory The follow diagram indicates how this course...
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...the sale of items from the cash registers with additional features for interpreting the data. It uses a client-server model with a connected database to allow multiple stores and warehouses to be connected. This allows for later expansion while still supporting the targeted small businesses. The core features and final framework should be completed within 2 weeks, leaving 5 weeks to implement additional features and testing. 1. Operational Concepts The Inventory Management System is a real-time inventory database capable of connecting multiple stores. This can be used to track the inventory of a single store, or to manage the distribution of stock between several branches of a larger franchise. However, the system merely records sales and restocking data and provides notification of low stock at any location through email at a specified interval. The goal is to reduce the strain of tracking rather than to handle all store maintenance. Further features may include the ability to generate reports of sales, but again the interpretation is left to the management. In addition, since theft does occasionally occur, the system provides solutions for confirming the store inventory and for correcting stock quantities. 2. System Requirements The Inventory Management System uses a web-based interface to display inventory data to the stock manager client. The product will use of open-source software primarily due to cost of implementation. A JSP (JavaServer...
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...Network Assignment #2 1. Compare Peer-to-Peer against Client server Networks. Discuss (briefly) the differences using the following factors: a. Security: Peer-to-Peer does not provide the security available on a client/server network but a client/server has its resources centralized which mean resources and data security are controlled through the server. b. Complexity: Peer-to-Peer only required two computers connected together however client/server required special software to communicate between server and client. c. Operating Systems requirements: Peer-to-Peer required an operating system such as Windows XP or Appleshare to establish a network communication, however for client/server special software such as Novell Netware or Windows 2000 server must be installed on the client and server devices. d. Scalability: Peer-to-Peer e. Redundancy / backup: 2. Define the following: a. Router: is a device that connects two networks - frequently over large distances. b. Hub: is a network device that connects multiple computers on a LAN so they can communicate with one another, the rest of the network. c. Switch: is a small hardware device that joins multiple computers together within one LAN. Technically, network switches operate at layer two Data Link Layer of the OSI Model. d. Gateway: A device that acts as a go-between two or more networks that use the same...
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...\ In the client/server architecture, you need to determine if it will be the client or the server that handles the bulk of the workload. By client, we mean the application that runs on a personal computer or workstation and relies on a server to perform some operations. Thick or thin client architecture is actually quite similar. In both cases, you can consider it as being the client application running on a PC whose function is to send and receive data.. The server would normally communicate that information to the middle-tier software (the backend), which retrieves and stores that information from a database. While they share similarities, there are many differences between thick and thin clients. Thick and thin are the terms used to refer to the hardware, but the terms are also used to describe applications. While this article deals specifically with hardware issues, be sure to check back as we will continue our Thick and Thin discussion as related to applications. 18.3 1. The provision of a stub procedure with the same interface as the called component. 2. The middleware running on computer A accepts the call and discovers the location of the called component. 3. It translates the parameters into a standard format and sends these to computer B along with a request to call the required component. 4. The middleware on computer B converts the parameters into...
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...currently has 20 Windows peer to peer client computers I would like for you to consider moving towards the client server network modelOnce a peer-to-peer network grows beyond 10 computers, it will likely begin to suffer from performance and from administrative problems (Posey, 2000) In the client server network model network hosts have specific roles which are assigned to them. There are certain host that are assigned as servers, which will provide network resources to the workstations. Unlike the current peer to peer model that is supported in your organization today in which everyone workstation has the same or similar operating systems. There are several benefits for your organization to consider to transitioning to client server network model. One of the major benefits of the client server network model is scalability. Since we know the potential for this organization to double in size over the next two years scalability is a key factor. It’s very easy to expand the size of your network with client server model because it will be easy to just add on workstation. Everything is centralized to the server. This server will be the centralized platform for all the workstations. Another major benefit of this client server model is increased security. This server will provide security that Ocper, Inc. current peer to peer model lacks. This server is responsible for the security surrounding the shared resource. In the client server environment you can set the appropriate...
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...TCPserver.java) 2 CODE 2.1 TCP CLIENT package tcp; import java.io.*; import java.net.*; public class tcpclient { public static void main(String argv[]) throws IOException { Socket c = new Socket("localhost", 1342); BufferedReader inuser = new BufferedReader(new InputStreamReader(System.in)); DataOutputStream outser = new DataOutputStream(c.getOutputStream()); BufferedReader inser = new BufferedReader(new InputStreamReader(c.getInputStream())); System.out.println("Send:...
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...application brings substantial advantages to the adopter. This report focuses on 2-tier architecture and mainly on the 3-tier architecture, which is the present web technology. This report will also review the client-side scripting and the server-side scripting. TABLE OF CONTENTS EXECUTIVE SUMMARY 2 1. Introduction 3 2. Need for technology 4 3. Terminology 5 4. 2-Tier Architecture 5 5. 3-Tier Architecture 7 6. Client Server Architecture 10 7. Conclusion 12 REFERENCES 13 1. INTRODUCTION Web sites have quickly evolved from simple, static pages to complex Web applications performing critical operations for many businesses. These applications involve dynamic data from multiple sources; ever changing and various features for e-commerce, personalization and many more. At the same time, customers and internal users have understandably come to expect and demand more and more sophistication in the Web-based applications they use every day. The result? Web application solution providers — and their client companies — face several new challenges. They must meet or exceed increasing user demands and deliver information quickly while adapting to each new stage of the evolution. Yet addressing these challenges effectively requires efficient technologies for application development. 2. NEED FOR TECHNOLOGY Important trends in computing which help in shape...
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...improvement. The following 15 evaluations will be used to access the current state of the network: 1. Evaluation of Client Computer Hardware In the evaluation of client computer hardware, this evaluation seeks to identify all client computer assets owned by the company. All laptops and desktops owned by the company should be made available as needed in order for the evaluation to be as accurate as possible. It will be necessary to perform a review of all client computers that connect to the company assets. These machines will be analyzed for speed, performance, and reliability. I will look for variations in hardware manufacturers. Depending on the circumstance, it can result in better TCO (Total Cost of Ownership) if client computers are limited to one or two manufacturers. In addition, machines that are broken, out of warranty, or outdated will be recommended for repair or replacement. 1. 2. Evaluation of Client Computer Software In the evaluation of client computer software, I will seek to identify all software that is installed on client computers and being used in the workplace. This evaluation can be performed using software metering in software such as Microsoft System Center Configuration Manager, if installed. If not installed, this information will be collected manually by viewing the installed software on each machine. All client computer software will be evaluated to ensure that it is up to date and that it meets or exceeds industry standards. For...
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...employees: 22 Business History: CR Media is a business that provides rentals of video games and movies. The business came to life in December of 2011 and is in the process of becoming established. Movies and Games can be rented via the internet and mailed to the home address in addition to visiting a physical location in the above mentioned cites. Network Architecture The network architecture that will be used for the organization will be the client/server network. A client/server network would be more suitable because this is a business that is growing thus it will be easier to make changes and additions to the network. A WLAN Star Topology is going to be used because it will be cost effective and will allow room for future growth. The client/server network will be composed of Windows 2000 File Server, Exchange Server and Firewall Server. We plan to connect 17 users in three locations with 5 users in our main location. Internet access would be controlled through the main location. We also hope to add a Citrix Server and will be linking the locations using a VPN solution with mobile users. Network Model TBD Layer 3: Session: Router Layer 3: Session: Router Reeivers: Monitors 1, 3, 4, 5 Reeivers: Monitors 1, 3, 4, 5 Layer...
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...architecture is a client-based architecture. As it states that the downloaded tool will communicate with the DRUB server to select data and analyze, which is very similar to the client-based architecture where the clients tells the server what data to select and analyze and processes data will be sent back to the client for display. The second alternative in terms of application architecture is two-tier client-server architecture. The application logic can be partitioned between the client and the server. The server is responsible for the data and the client, the application and presentation. Using the web browser the client will talk to the web server using a standard called HTTP (Jerry Fitzgerald, 2009). b. Outline the pros and cons of the two alternatives and make a recommendation to Fred about which is better. 1. Client-based architecture: a. Pros: 1. Much more inexpensive to implement as microcomputers are considerably cheaper versus mainframe. 2. Hardware of different manufactures or platforms can function together on the same network. b. Cons: 1. Data traffic must be sent and received between client and host. 2. Due to the potential amount of information that must be sent between client and host, this can put a significant performance hit against the network, affecting all machines. 2. Two-tier Client-Server architecture: a. Pros: 1. The cost of infrastructure is low as they place less of a load on networks and thus require less network capacity. 2. Performance...
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...CLIENT SERVER PROGRAMMING AND MULTIMEDIA Introduction Client/server describes the relationship between two computer programs in which one program, the client, makes a service request from another program, the server, which fulfills the request. Although the client/server idea can be used by programs within a single computer, it is a more important idea in a network. In a network, the client/server model provides a convenient way to interconnect programs that are distributed efficiently across different locations. Computer transactions using the client/server model are very common. For example, to check your bank account from your computer, a client program in your computer forwards your request to a server program at the bank. That program may in turn forward the request to its own client program that sends a request to a database server at another bank computer to retrieve your account balance. The balance is returned back to the bank data client, which in turn serves it back to the client in your personal computer, which displays the information for you. The client/server model has become one of the central ideas of network computing. Most business applications being written today use the client/server model. So does the Internet's main program, TCP/IP. In marketing, the term has been used to distinguish distributed computing by smaller dispersed computers from the "monolithic" centralized computing of mainframe computers. But this distinction has largely disappeared...
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...IS3220 VPN connectivity troubleshooting checklist 1. Users can't access file servers If the user can access the file server using an IP address but not a name, then the most likely reason for failure to connect is a name resolution problem. Name resolution can fail for NetBIOS or DNS host names. If the client operating system is NetBIOS dependent, the VPN clients should be assigned a WINS server address by the VPN server. If the client operating system uses DNS preferentially, VPN clients should be assigned an internal DNS server that can resolve internal network host names. When using DNS to resolve internal network host names for VPN clients, make sure that these clients are able to correctly resolve unqualified fully qualified domain names used on the corporate network. This problem is seen most often when non-domain computers attempt to use DNS to resolve server names on the internal network behind the VPN server. 2. Users can't access anything on the corporate network Sometimes users will be able to connect to the remote access VPN server but are unable to connect to any resources on the corporate network. They are unable to resolve host names and unable to even ping resources on the corporate network. The most common reason for this problem is that users are connected to a network on the same network ID as the corporate network located behind the VPN server. For example, the user is connected to a hotel broadband network and is assigned a private...
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