...Support for High-Definition IP Cameras DeVry University NETW206: Introduction to Switching Submitted to: Yves Gollo Professor: Yves Gollo Date: 9-14-13 Understanding of the purpose of the operations at hand is key to the function of the change in the university. The main purpose of the case study presented is to present the task of implementing a high definition security video surveillance system solution that can replace and magnify what already exists at DeVry University today. As mentioned, DeVry requests a high definition security system that is to require the following features: 1. PoE (Power over Ethernet), avoid any additional wiring, the mounting of power bricks or using power injectors. Conserve and confine; 2. Segment camera IP traffic from the existing network for security purposes; 3. Provide sufficient bandwidth for full HD support; 4. Support a minimum of 150 cameras; 5. Comply with the cisco hierarchical design model; 6. Integrate 1Gb uplinks; and 7. Minimize rack space. During this process, DeVry has not yet purposed a budget for this action taken for this project but as any company would, DeVry would like the most cost efficient method possible. With such a request as this, it seems almost impossible to find such a camera that can withstand everything. Almost as if it was an indestructible camera seeming almost impossible until there was some research conducted. The discovery of the D-Link DCS-7513 Full HD Day &...
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...CATALYTIC CONVERTER THEORY, OPERATION AND TESTING 2 The gasoline used in the modern automobile is a complex blend of both straight and branched chain hydrocarbons. In simpler terms it is a mixture of different types of bunches of hydrogen and carbon. We will use the fictitious molecule C8H17 to approximate the blend of different hydrocarbon compounds found in gasoline. In more simple terms one gasoline molecule* contains 8 atoms of carbon for every 17 atoms of hydrogen and nothing else*. ONE GASOLINE MOLECULE* GASOLINE IS --> C8H17 8 CARBON ATOMS + 17 HYDROGEN ATOMS BONDED TOGETHER *There is no such thing as a single gasoline molecule. Gasoline is a very complex blend of several different molecules. C8H17 is used to represent the average “gasoline molecule”. COMPOSITION OF AIR 1 PART OXYGEN (O2) AND 4 PARTS NITROGEN (N2) When gasoline is mixed with air and ignited in the combustion chamber it burns, and in doing so reorganizes the hydrogen, carbon and oxygen atoms. As these atoms are reorganized they can form CO, CO2, H2O, NO (and other NOx), and of course if some of the gasoline is left unburned, C8H17 or other forms of generic HC. Optimum combustion occurs at an A/F ratio of about 14.64:1. If all of the fuel vaporizes and takes part in combustion and no NOx is formed we would have perfect combustion. Perfect combustion would result in the formation of nothing CO2, H2O. Perfect combustion: Air + Fuel CO2 + H2O (and nothing else) Unfortunately as more and more CO2 is formed...
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...NI-LIMIT 11 NI-LIMIT COMPUTER NETWORK SYSTEM PROPOSAL [Type the document subtitle] [Type the author name] TABLE OF CONTENTS ACKNOWLEDGEMENTS My fellow group members would like to thank our dear lecturer Mrs. Noris Ismail for doing her lecturing job professionally which broadened our knowledge greatly about networking and enabled us to come up with such a detailed proposal for network infrastructure and mixing it with several other ideas to finally make a final report on it. I would also want to thank my fellow group members for the effort and dedication they put in to complete the task of coming up with the report and the final proposal. Chapter one: Company profile NI-Limits Sdn Bhd NI-Limits Sdn Bhd is a digital design & web management company that provides stateof-the-art service through a mixed team of local and foreign professionals with the mission of delivering unparallel service and support to both Malaysian and International markets. NI-Limits Sdn Bhd is a Malaysian based company resulting from a merger of several independent web development agencies (Pixel Media, Webb Designs and Quartz Interactive) and international freelancers that have been in business since 1997. Mark Smalley and Nigel Webb formed Pixel Media in Sarawak, Malaysia in 1997. As a team of independent freelancers working together, they developed online marketing material to clients throughout Asia. The company primarily dealt with Oil and Gas related companies that were...
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...QUESTION NO: 57 New switches have been purchased for a network upgrade. The objective for the network design emphasizes efficient, error-free transport instead of fast transport. Which switching mode should be configured on the new switches to provide error-free transport to the network? A. cut-through B. fragment-free C. frame-filtering D. store-and-forward E. 802.1q forwarding F. VTP transparent mode Answer: D Explanation: The Switch receives and stores all bits in the frame before forwarding the frame. This allows switch to check the FCS before forwarding the frame. FCS is Ethernet Trailer. Incorrect answers: A. The Switch performs the address table lookup as soon as the destination address field in the header is received. The first bits in the frame can be sent out to out port before the final bits in the incoming frame are received. This does not allow the switch to discard frames that fail the FCS check. B. This is also same as A. But Switch waits 64 bytes to be received before forwarding the first bytes of the outgoing frame. Collisions may occur during first 64 bytes of the frame. Frames in error due to collision will not be forwarded. The FCS still cannot be checked. C,E,F : They are not related to Switch mode transport. QUESTION NO: 107 Which protocol admin overhead in a switch network by allowing the configuring of a new VLAN to be distributed to all the switches in a domain? A. STP B. VTP C. GVRP D. SNMP E. DHCP Answer: B Explanation...
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...about 14.7 to 1, meaning that for each pound of fuel, 14.7 pounds of air will be burned. The fuel mixture actually varies from the ideal ratio quite a bit during driving. Sometimes the mixture can be "lean" (an air-to-fuel ratio higher than 14.7); and other times the mixture can be "rich" (an air-to-fuel ratio lower than 14.7).] Most modern cars are equipped with three-way catalytic converters. "Three-way" refers to the three regulated emissions it helps to reduce - carbon monoxide, unburnt hydrocarbons and nitrogen oxide molecules. The converter uses two different types of catalysts, a reduction catalyst and an oxidization catalyst. Both types consist of a ceramic structure coated with a metal catalyst, usually platinum, rhodium and/or palladium. The idea is to create a structure that exposes the maximum surface area of the catalyst to the exhaust stream, while also minimising the amount of catalyst required (they are very expensive). There are three main types of structures used in catalytic converters - ceramic honeycomb, metal plate and ceramic beads (now almost obsolete) - the Scorpio like most cars today use a ceramic honeycomb structure. CATALYTIC...
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...Meanwhile, BDC is a highly centralized organization, authority for decision making power is held in the hand of managers at the top the hierarchy. In the case of BDC, it could be revealed that the rigid structure with multi-layer hierarchy and centralization of power and authority has inhibited cross functional or inter-departmental teamwork and stifled business innovation, and become the major obstacle for encouraging initiative. There are three key problems that I have identified, which consist of organizational inflexibility, resistance to change, culture and motivation. Each problem is examined in details as following: Organizational Inflexibility - A computer-based business analysis system as an innovative product can enable customers to undertake their own database interrogation, and generate internal analysis reports. Such innovative product or service is aligned with company's strategy to promote the widespread use of computer within company, and offer customized product with a far better profit margins than conventional one. But as it can be perceived that BDC is a highly bureaucratic system of formalization with emphasize on rules and procedures to control and coordinate the activities of implementing a new idea; and more importantly, BDC's senior staffs are used to current work style and feel comfortable with time-consuming procedures to getting the approval for a new idea through a centralized and multi-level decision-making process. From the complaint of BDC's...
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...Case Study 2 January 24, 2013 ISSC 340: Local Area Network Technologies American Military University This document is a proposal for a full network solution to support multiple users and services at the America One Car (AOC) dealership located in Washington DC. The following will include a description of recommended internet service provider (ISP), network cable and infrastructure to include all network equipment, i.e. routers, switches, wireless access points, file and storage server, print server and email server. It also includes the proposed number of network wall drops in each office, the number of phones both VoIP and POTS, total number and type of workstations, and total number and types of printers. This will address the best solution that will meet the company needs while keeping the total cost as low as possible without hindering the network performance. First we will discuss the recommended internet access method and the minimum recommendation for you ISP. The best option for a small business with the possibility of future expansion would be to use a commercial service provider. It is recommended that you use an Ethernet internet that will provide you with a fast, reliable solution that is cost effect and easily upgradable if required. Windstream offers a dedicated Ethernet line with bandwidth speeds up to 1Gbps, having a dedicated Ethernet connection will allow for uninterrupted network access that will not be affected by other users during high traffic...
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...establish a career in Computer Programming. Once completed, I hope to be employed by one of the many Fortune 500 companies that would be able to utilize my skills. While here at Pueblo Community College I will be pursuing an AGS degree in Computer Information Systems. I will then transfer to a university to obtain my Masters in Computer Science. The reason I chose to return to school for this was because I have always had a love for computers and electronics. Ever since I was ten years old computers have fascinated me. I believe that if you are doing something that you are passionate about, you are more likely to succeed. I would like to start a career with Google with such a degree. They are leading the industry in the search engine battle, especially with the acquisition of Skype and YouTube, making it possible to explore different areas of programming. I will accept a position with Yahoo or Facebook solely because I think it would be a stimulating work environment. By furthering my education, I not only secure my life but my family’s lives as well. Obtaining my degree will put me on the necessary path to becoming a very successful Software Engineer. As aforementioned, Pueblo Community College will be the catalyst for firstly obtaining my degree, and then securing a career that maintains my standards of lifelong satisfaction. Pueblo Community College is building the basis for a six year, scholarly extravaganza to acquire my Master’s Degree in Computer Science. Choosing to...
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...Sr. | index | 1 | inroduction | 2 | VLAN Concept | 3 | Designing VLANS | 4 | The Access & Trunk Links | 5 | VLAN Tagging(- ISL, 802.1q, LANE and IEEE 802.10) | 6 | Analysing Tagging Protocols | 7 | InterVLAN Routing | 8 | Virtual Trunking protocol (vtp) | Introduction Virtual Local Area Networks or VLANs are one of the latest and coolest network technologies developed in the past few years, though have only recently started to gain recognition. The non-stop growth of Local Area Networks (LANs) and the need to minimize the cost for this expensive equipment, without sacrificing network performance and security, created the necessary soil for the VLAN seed to surface and grow into most modern networks. The truth is that VLANs are not as simple as most people peceive it to be. Instead they cover extensive material to be a whole study in itself as they contain a mixture of protocols, rules, and guidelines that a network administrator should be well aware of. Unfortunately, most documentation provided by vendors and other sites is inadequate or very shallow. They lightly touch upon the VLAN topic and fail to give the reader a good understanding on how VLANs really work and the wonderful things one can do when implementing them. Like most topics covered on our site, VLANs have been broken down into a number of pages, each one focusing on specific areas to help the reader build up their knowledge as preparation for designing and building their own...
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...resources. The R&D director doesn’t agree with the new computer system so Dan’s, the computer PM, project is given a low priority. There are currently two proposals pending and could be won by Kent Corp provided the new computer model is available for use. Kent Corp is capable of handling 100 projects simultaneously but this system creates a continual reshuffling of resources. Question 2. How would you sum up the situation at Kent and attack the problem? Kent is a large corporation that can handle several different projects at once but they should consider reducing the number of projects by 10-15%. The reduction of work in progress would reduce the burden on resources. Priorities need to be enforced across the board and an independent committee needs to be formed to decide on the priority listing for the company. This would eliminate any potential biases coming from various department heads. Currently the R&D director is the only employee not on board with the new computer system and he has the ability to assign a low priority to the project. No one employee should be able to independently decide the fate of one project that is important to the rest of the company. Upper management needs to have a meeting with R&D and explain the importance of the new system to the company. The government sponsored the computer project with $750,000 and now has a vested interest in the success of the new computer system. If the computer project fails, Kent may have trouble acquiring assets...
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...Printing Press The Ancient Catalyst of Culture DeVry University Humanities 303 Printing Press, the Ancient Catalyst of Culture How did we get to the latest art form of printing, the wireless printer? Through years of evolutional design and determination, this technology was possible. The printing press allowed people to learn different styles of the art of printing, education, arts, literature, and cultural differences quicker, and learning was more widespread, in addition; it provided the world with the most efficient means of communication of the written word through mass production. I will show how the decision of humankind to advance the printing presses worthiness did advance literacy in many cultures. Through the printing presses, humble beginnings of block printing to the latest technological advancements, the printing press has continued to evolve in one form or other. The printing presses evolution would not be complete without some prior knowledge of how it all began; therefore, a little history is necessary to fully understand the evolutional picture of communicational needs and the printing press. In ancient times before the beginning of a written dialogue, when reading and writing was nonexistent, communication was nothing more than some obscured hand drawings on clay tablets or cave walls. Communication was limited to the imagination of the ancient artist who wanted to explain life’s surrounding and how to survive. The validation of communications in religion...
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...classless because you can set the amount of hosts. Unlike classful routing where the amount of hosts are automatically set. For example if you have an IP address of 192.165.1.2 and you need 1024 hosts then your subnet mask would be 255.255.252.0/22 the slash 22 is the CIDR. This says that I borrowed 22 network bits to come up with 1024 hosts. IP classless routing is used to tell the router: To not drop any packet when the default route is configured. Which Means to use classless addressing that is not bound to a network class A, B or C used by Classful routing. * SWITCHING IN ETHERNET (LAN’S) The most common used network is a local-area network (LAN). Ethernet is the most used and often shared-media of an LAN. Most if not all Apple computers and PCs come with 10/100 Ethernet ports for home use. The ports facilitate a user to create a small home bound network although connect to the Internet via a DSL. A 10/100 port means that the network interface supports both 10BASE-T at 10 megabits per second (Mbps) and 100BASE-T at 100 Mbps. In a public Ethernet environment, each device has to run for network bandwidth via the carrier sense multiple access with collision detect mechanism. In a switched Ethernet situation, each sender and/or receiver pair has the complete bandwidth available for use. Ethernet hubs which are used on layer 1 of the OSI model (physical layer) repeat only the physical signal a hub does not look at a source...
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...Office Technology and Management: A Catalyst for Students’ Self-reliance. ABSTRACT This paper discusses office technology and management as a catalyst for students’ self-reliance. The core of the paper is that when students who are considered future leaders are empowered, it subsequently leads to the social, economic and political growth and stability of any nation. Office technology and management formerly known as secretarial studies is proffered as the catalyst education for students’ self-reliance based on all spheres of human endeavour. It guarantees prompt and decent employment for students who have competent secretarial skills. Students, after graduation could also go entrepreneurial to establish small-scale businesses of different types. INTRODUCTION In the national development equation, education remains the fulcrum upon which other indices of national development revolve. It is no doubt, that office technology and management education is one of the disciplines that train students for self-reliance and self-sufficiency. The level and quality of education collectively attained in a given society determines the extent to which other factors of development are exploited for the advancement of that society. Office technology and management creates awareness, develops the potentials in man to subdue and harness the resources in his environment for the betterment of himself and his society. Education according to Boladele (2002) is a process of acculturation through...
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...being the first African American baseball player he open the door for other African Americans to play baseball. He not only did baseball he supported political causes, to pursue a better life for African Americans. He experienced the injustices people treated African Americans but he still supported the peaceful protest for African Americans to get their civil rights. When he broke the color line it was a time of great social change for african americans in 1950’s-1960’s. He show that segregation was more than just for voting rights. He shown people...
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...| Switch Configuration | | | Amanda Robertson | 4/20/2014 | | I was Hired By a company as a network engineer. One of my first jobs was to purchase, install, configure and deploy a Cisco Catalyst 2960-S Series Switches. This is a popular choice with the LAN Base Software, which comes with the switches. I found that this switch would be compatible with the companies needs having 48 ports, POE configurations that offer up to 15.4w per port, USB storage, 10 GB Ethernet uplink flexibility. This switch would use either copper or fiber optic cabling however I would prefer the fiber optic. The first step that I would have to take is to connect all hardware properly. “When you first set up the switch, you should use Express Setup to enter the initial IP information. This enables the switch to connect to local routers and the Internet. You can then access the switch through the IP address for further configuration” (Cisco, 2006-2010). Plug in the AC adaptor cord to the Cisco switch to power it on. The switch will go through POST and then verify that the SYST LED light blinks green rapidly. To run Express Set up mode, hold the mode button for 3 seconds, or when all lights above mode buttons turns green. Connect a CAT5 Ethernet cable to the switch and computer, after 30 seconds launch a browser and enter the IP address 10.0.0.1 in the browser and press enter. I would then fill out all the information requested by the Express Set up Mode, the Management interface would...
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