...Devices on the Network Michael Gustafson NTC/405 10/8/2012 JOHN-HUNG HO Devices on the Network There have been many advances in the world of networking and there are a multitude of devices which are a part of any particular network. I will go over the following network devices: Network interface card (NIC), modems, network hubs, switches, routers, gateways, and repeaters. Also the difference between channels and circuits and the difference between circuit switching and packet switching will be addressed as well as the concept of Ohm’s law and its importance to circuit trouble shooting. A NIC or network interface card is a device which lets a piece of equipment interface with a network. A NIC is a card encoded with a special 48 bit unique number known as a MAC address which helps the network recognize the user so that it can access the network, a NIC supports a transfer up to 1000+ mbps. A transceiver is embedded in the NIC that can transfer media from the network to the NIC. A wireless NIC or WNIC is essentially the same as a wired NIC in that it too has a 48 bit address although the connection is through radio waves transmitted electronically from the NIC’s antennae. The connection is started electronically through antennae and transferred over radio waves then back into an electronic signal in the device. A modem is a piece of equipment used to connect a user’s computer to a network. The modem is essentially a converter in that it can convert analog cables to digitals...
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...Network devices we can use in the topology are: Network Interface Card (NIC): Allows our PC to communicate with other PC’s. It converts data transmission technology. Bridge: To improve the performance, networks are divided in smaller networks. Bridge is used to divide a large network in smaller networks. Switch: connect multiple computers together in a LAN segment. • Router is a device which forwards data packet from one logical network segment to another. Router • forwards packets on the bases of their destination address Considering all the above network configuration and network devices we can Connect all users to company resources (e.g. printers, scanners, and other items), provide file sharing options, manage these resources in a central location. IP Infrastructure The IP infrastructure represents a key boundary...
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...Wii, Netbooks, iPods, etc…) like wireless devices, there are many advantages and disadvantages in operating wirelessly. No matter how you feel about the advantages or disadvantages of the devices, they need to be protected, along with setting up some form of security. On the website Howstufworksvideo (12) they show you the basics on how to setup home Network Security. You can go there can see how it is done. Just a few years ago, (25 Sep 07) there were some so-called experts saying that there was no need to secure your wireless system. In an article, David Ramel alleges that the importance of wireless security is overhyped, that it's now trivial to secure wireless nets and that IT pros have far more serious security concerns they should be addressing -- while home users have little to lose even in the remote chance someone tries to breach their network. (3) This person was obviously living in a sheltered environment because identity theft and credit card theft was out of control then. Now he is saying don’t worry about protecting your network and to just hold on to your wallet; basically. Either he was very innocent or totally clueless and is eating humble pie about now. Here are a few disadvantages. A limited spectrum, war driving, interfering signals can be generated by other devices in the office environment, for example printers, microwave ovens and other electromechanical devices. Wireless is a public frequency network therefore its interface is highly risky because...
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...Enterprise Security Network Access Control: User and Device Authentication August 2005 Intel IT is piloting new security methods to provide network access control by authenticating devices as well as users. Since networking has evolved to support both wired and wireless access, securing corporate networks from attack has become ever more essential. Therefore, to effectively enforce network access control policies in a proactive manner, we are developing a method to authenticate users and devices before they connect to the network. Network Access Control at Intel • Over 90,000 employees worldwide • 80 percent of knowledge workers are mobile and unwired • Over 50,000 remote access users Background As a global corporation, Intel IT supports more than 90,000 employees and contractors all over the world, and 80 percent of our knowledge workers are mobile and unwired. Network access depends more and more upon wireless LANs and WANs, as well as virtual private network (VPN) remote access. All of these technologies have the potential to open our network perimeter to threats. When we considered the threat of viruses and worms, it was evident that we needed additional controls to secure the enterprise network and its information assets from unauthorized devices and unauthorized people. Figure 1 shows how we could authenticate devices and users as part of the authentication pyramid. Figure 1. Authentication pyramid Info Use Auditing Access Control User Device Authentification...
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...no single device that offers the best features of all the gadgets and hence a need of integrating them into one arises. With the already existing concept of internet of things, the need of the hour is to enable this technology to understand and analyse human habits and act accordingly. * The need of a common platform that interacts with all the devices and supports the interaction of all gadgets amongst themselves. E.g. here we wish to have a network pool registered with the Master Controller which enables connectivity and interaction of all the devices with each other. So a DSLR connected to a Smart TV through the master controller shall enable us to see the captured moments on the big screen. * The humanoid thinking of the Master Controller is what we intend to achieve in order to derive the maximum value of all the devices. The devices shall in this case act as per my thoughts. UNDERSTANDING THE APPROACH Here we see the Master Controller (MC) connected to all the devices through the Li-Fi ("light fidelity" technology, that can be a complement of RF communication or a replacement in contexts of data broadcasting. It is high speed and bidirectional which carries much more information and has been proposed as a solution to the RF-bandwidth limitations) and Bluetooth, the devices in turn are connected to this common pooled network established by the Master controller. CASE: Peter has been working on his DELL STUDIO for a long time now. The MC device interacts...
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...CMIT 350 WAN and SOHO Skills Implementation Use this document as a guide for formatting and organizing your CMIT 350 Skills Implementation challenge. Title Page Professionalism will be key to your success and advancement in your academic and professional career. Use the title page to identify relevant information such as your name, the course, professor, and submission/completion date. Document Index/Contents Organization will allow your document to be divided into key areas of consideration and allows an overall structure to be placed over the submission. Sample text: I. Site “XXXXXXXX” Challenges and Implementation II. Site “XXXXXXXX” Challenges and Implementation III. Site “XXXXXXXX” Challenges and Implementation IV. Bibliography Site “XXXXXXXXXX” Challenge and Implementation (Provide a section for each site, as suggested in your table of contents.) Site Details and Challenges (Summary) Here, you will simply summarize the site requirements and/or challenges you are attempting to overcome. You will not need to implement solutions or discuss your approach at this point. This information is provided to you and can simply be organized and restated as you understand it. Think of this area as what needs to be corrected. Suggested length would be one or two paragraphs. Sample text: As described in the scenario, the xUMUC site was developed without any VLAN structure, and administrators have found the need to isolate broadcast traffic from a layer-2 perspective. Site...
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...personal use) program has a wizard-based interface which makes it very straightforward to use. Point MiniTool Partition Recovery at the problem drive, specify the area to be searched, and it'll scan for the missing partition. A report will let you know what the program has found, and you can recover the partition in a few seconds. You don't get a bootable recovery disc here, so if your system partition is damaged then MiniTool Partition Recovery won't help you very much. Otherwise, it provides a quick and easy way to locate and restore lost partitions [ (Williams, 2013) ]. A tool called BitPim which is a device that specifically works for CDMA devices, such as LG, Samsung, Sanyo and other manufacturers. This tool is a good one for working with devices that use Sprint, Verizon and U.S. Cellular as their providers, since it primarily works well with CDMA carries & devices. This is not a tool I would recommend that a law enforcement agency should use since it is a freeware...
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...allow you to attach additional cards on the computer, such as video cards, sound cards and modems. It adds the abilities to your computer that the motherboard doesn’t provide. Finally the IO bank. This is the set of connectors that allows you to connect carious devise to your computer. Devices like your Keyboard, monitor, mouse, and flash drives, and connect your computer to network. Upgrading the motherboard will give you some performance improvements to your computer but why is this improvement limited? This improvement is limited because you have to upgrade more than just the motherboard to improve speed and other things. Upgrading the RAM and other things along with your motherboard is a good way to get all around system performance improvements. What is the need for all the different busses found on a motherboard and why can’t These be replaced with a single bus? The difference between computer busses break down as so. Data width, Cycle rate, Device management and type. The data width and cycle rate are used to determine the bandwidth, or the total amount of data the bus can transmit. The device management indicates the maximum number of supported devices and the difficulty of configuring them. The memory...
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...Case Study 1 Bring your own device (BYOD) Cynthia Lopez Networking Security Fundamental OCT. 26, 2015 Good news now your company has bring your own device program so you can finally use your phone that has more capability than the boring company’s phone. Now you can you can use your new shiny iPhone for work. You can now even check your corporate email from home and stream YouTube videos too all while your company splits the bill. Will now that it all seem great and you are happy to join the company’s bring your own device you wake up reach for your phone to check your emails but it doesn’t turn on its become a brick! You do some family investigation you realize that the little one tried to guess your password and entered it wrong several times your company’s security policy shut down your phone to keep sensitive material from unauthorized access. Your phone is brought back to life and restored but realize now that all your pictures are lost and any notes you might have saved on your phone. It is gone forever. (The Dark Side of BYOD) pg1. Many employees are shocked to know that their personal devices can be asked to be surrendered. In bring your own device companies can track you using GPS on your device to track your whereabouts. Selectively disable camera and microphone when the device enters restricted company areas to prevent sensitive data loss. Online activity can also be monitored to protect the company from any liability arising from an improper...
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...In the Lighthouse revenue recognition case, there are two alternatives. The first alternative is that the device and service is a single unit of accounting and both should be recognized as the service is provided. The second alternative is that the devices and services represent two separate earnings processes which need to be recognized separately. Alternative 1. According to FASB 605-25-25-5, there are three criteria that need to be met in order for an arrangement with multiple deliverables to be considered separate accounting units. First, the items need to have standalone value to the customer. Second, there needs to be objective and reliable evidence of the fair value of the undelivered items. Third, if the arrangement includes a general right of return relative to the delivered item, delivery or performance of the undelivered item or items is considered probable and substantially in the control of the vendor. According to these terms, the device and service are not separate because they do not have standalone value since the devices are made to be used exclusively with the Lighthouse services and there are no other competitors making devices that work with the Lighthouse services. Therefore the device should be combined with the service and recognized over the service period. Alternative 2. According to FASB 605-10-25-3, revenue should ordinarily be accounted for at the time a transaction is completed, with appropriate provision for uncollectible accounts...
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...The highly anticipated Samsung Galaxy S5 is finally announced and what all the hype led to was, to me, a very disappointing device with only very incremental updates to the device's predecessor, the Galaxy S4. First of all, whether or not someone would like the new design is very subjective. I personally was expecting a more premium choice of material like metal and glass rather than plastic but the plastic was not the largest disappointment since all of the Galaxy devices made by Samsung are all plastic but I personally really dislike the design patterns on its back which looks more awkward than it is glamorous. The camera is one part of the device that I would say met my expectations with the ability to capture 4k videos and being able to see HDR pictures while I'm taking the picture are examples of features that are actually useful. The speed of the camera, as Samsung would say has the fastest autofocus in any smartphone to date, another feature that I would still consider relevant the some people's daily life. There are many more things to say about the S5, but I think that it is still a little early to give my full opinions about the phone before actually using it because who knows? I may end up liking the design patterns or maybe just put one of Samsung's designer cases on it and call it a day. The Galaxy S5 in by no means a bad phone, but it just didn't live up to all the...
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...trucking companies offices. The trucking company is provided with detailed information: GPS location of both the tractor and the trailer, speed of the truck/trailer, whether the trailer doors are open, how much weight the trailer is carrying, etc. Truck Locators must install a dedicated hardware unit on the truck and the trailer before the Truck Finder service can be used. Customers generally sign their contract on the date of the sale for both the hardware (devices) and for the truck monitoring services. Service contracts generally have a duration of 12 months and are billed monthly. Service and devices are sold at standard rates, but discounts are offered depending on the number of units purchased and placed in service. The discounts do not appear to be unreasonable. Standard pricing for the services and devices is as follows: Product or Service Price Truck Finder Device $15,000 per unit, MSRP Truck Finder Services $500 per month, per unit (tractor is billed separately from trailer) The Truck Locator devices are made to be used exclusively with the Lighthouse services. No competitor makes...
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...plus any necessary appendixes (i.e. organizational charts, graphs etc.) The e-commerce company that I have selected is gazelle.com. Actually, they like to consider themselves a re-commerce company, because part of their service is to take devices that might otherwise find their way directly into a landfill and sell them to other people who might still want them. Gazelle.com is a very simple website to use. The most basic explanation of what they do is that they allow you to get money for your old electronics. In order to sell your old devices, you start by navigating to their website, www.gazelle.com. Once you’re there, it’s pretty simple to figure out what’s next. You have a few options, iPhone, Cell Phones (which pertains to other-than-iPhone smartphones), IPad, IPod, Macbook, or Mac. There are pictures of each type of device so it’s dead simple to figure out. Just click on the type of device, and then click on the model of device. Once you have selected your device model, you indicate the condition of your used device, and gazelle.com will give you a quote. If you choose to accept that quote, you’ll enter your personal information, lock in the quote (which is good for 30 days), and gazelle.com will ship you a container to put your device in and ship it...
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...interaction with peers and adult facilitators. The task of defning developmentally appropriate technology use is no different from the task of defning developmentally appropriate use for any other learning tool, such as a book or a set of blocks. Collaborative, interactive use of technology appears to have positive efects on social skills, whereas excessive solitary use may be harmful.10 3. Whether use is sedentary or mobile. Active play is an important part of ECE, and technology use should support this goal. Sedentary technology use is associated with increased rates of obesity, but incorporating technology into active play (e.g., exploring outdoor environments while using a tablet to identify wildlife, exercise-based games on such devices as the Wii gaming system) can...
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...There were quite a few rhetorical devices in the movie clip. My favorite was when Mr. McGee was describing his old Executive Assistant. Back in the day they we all called secretaries, but they knew as much of the goings on of the company than their immediate boss and other executives wanted to admit or believe. I think that is one reason why the named changed. The other reason is that it sounds more professional and less demeaning. There are four classes of rhetorical devices. Class one consists of one word or a phrase that makes something less important, gives a way out if challenged, and specific words to upscale something. Class two devices succeed on unwarranted assumptions. Class three, which is my favorite, is humor or exaggeration. I use this one all the time and never realized that there was a specific name for what I was doing. Class four is using or conforming a definition to meet your needs. The devices when used properly can captivate the audience. If they are used wrong it can get the audience in an uproar very quickly. If the author or speaker uses these devises the way they are intended to one could not argue against them and they would have an air tight opinion. A very experienced person using these devices can convey their argument to any group and have them at least stop and think. If these devices are once again used correctly the claims that are made could sound extremely creditable. It will once again depend on how they are used and if confronted how the...
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