OSI vs. TCP/IP Model Comparison & Overview The Open Systems Interconnection (OSI) reference model created in the late seventies and used today consists of seven layers that include Application‚ Presentation‚ Session‚ Transport‚ Network‚ Data Link and Physical. The Application layer often dubbed Layer 7 is the most common layer to end users and can consist of applications such as Microsoft’s Internet Explorer or other browser software. The Presentation layer provides a translation of application
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Juvenile delinquency along with the punishments associated with it seems to be one of the touchier subjects in today’s society. When it comes to juveniles‚ there are a number of different things that lead them to commit crimes. Things like the level of crime in their community‚ the bond they have with their parents‚ and even their economic status all lead juveniles to crime. In order for communities to even start to deter crime among juveniles‚ they need to start implementing a number of sources
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Chapter 1. The TCP/IP and OSI Networking Models Page 1 of 22 Chapter 1. The TCP/IP and OSI Networking Models This chapter covers the following exam topics: Operation of IP Data Networks Recognize the purpose and functions of various network devices such as Routers‚ Switches‚ Bridges and Hubs. Select the components required to meet a given network specification. Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models. Welcome to the first chapter in your
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interoperability. It was common for large networks to support multiple network protocol suites‚ with many devices unable to interoperate with other devices because of a lack of common protocols. However‚ while OSI developed its networking standards‚ TCP/IP came into widespread use on multivendor networks for internetworking; while on the local network level both Ethernet and token ring gained prominence. The OSI reference model was a major advance in the teaching of network concepts. It promoted the
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Internet daemon) is started in my system rather than inetd (internet service daemon). Both of them are super-server daemon started only under request. Because xinetd is more secure than inetd‚ more Unix- services now replace inetd with xinetd. Exercise 4 Q:Compare the file ser_more and ser_cp. Are these two files identical? A:Yes‚ they are identical. Q:Display the file sizes using ls –l ser*. Save the output. What are the sizes of files A: ser_more‚ ser_cp‚ and ser_cat? ser_cat 39870 bytes
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Networking Topologies and TCP/IP protocol Bus Topology It just doesn’t get much simpler than the physical bus topology when it comes to connecting nodes on a Local Area Network (LAN). The most common implementation of a linear bus topology is IEEE 802.3 Ethernet. All devices in a bus topology are connected to a single cable called the bus‚ backbone‚ or ether. The transmission medium has a physical beginning and an end. All connections must be terminated with a resistor to keep data transmissions
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TCP/IP LAN Check Point #8 Answer: C Explanation: The network address 150.50.0.0 that was originally assigned is a class B‚ so it has a default subnet mask of 255.255.0.0. Then you need to divide this network into 7 subnets and only the net work address 255.255.240.0 provides enough networks because it will provide 16 - 2 = 14 subnets (-1 for the network address and -1 for the broadcast address‚ which gives a -2 from the total of subnets). #9 Answer: C Explanation: The network address 209
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Week 4 Assignment PSY 240 November 13‚ 2013 To Eat or Not to Eat Hello everyone. My name is Ruth and I want to talk to you guys about eating disorders. An eating disorder is essentially an illness that disrupts a person’s every day diet which can cause a person to pretty much stop eating or over eat‚ depending on the illness. These illnesses are more apparent in the teenage years and in to young adulthood (Pinel‚ 2011)‚ which makes sense because this is when we start becoming
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This paperwork of COM 220 Week 4 Checkpoint includes: Developing a Thesis Statement Computer Science - General Computer Science DQ1 Week 4 Why is the systems development life cycle important (SDLC)? Who participates in the SDLC methodology? NOTE: -Responses to discussion question should be at least 200-300 words. Make sure that you have correctly checked for grammar and spelling. -Also‚ if you are citing from the internet‚ please remember to provide reference
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Week 4 Checkpoint – Part 1 (5 points) The following are common categories on a classified Balance Sheet: Current Assets Long-term Investments Plant Assets Intangible Assets Current Liabilities Long-term Liabilities For each of the following items‚ select a category from above that identifies the Balance Sheet category where the item typically would appear. Category on Balance Sheet Account Title Long-term Investments Notes Receivable Current Assets Merchandise
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