The layers of Earth How do scientists know what is in the center of the earth? How can we know what the core of the earth is made of‚ if scientists have never studied any materials from a depth below 7.5 miles? Earth is approximately 4.6 billion years old‚ and over this time period‚ many things have changed inside and out. The formation of our planet is quite amazing. Earth consists of multiple layers. The three most distinct or main layers are the core‚ mantle and crust. The inner portion is
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The Seven Layers of the OSI Model Kevin Ludwig Bryant and Stratton College TECH 140 Khaled Sabha 12.08.2009 There are seven layers in the OSI model. Each layer has a function or purpose that is used to set up a network. The International Organization for Standardization began to develop the OSI framework in 1984. The purpose was to have each layer interact with the layer directly beneath it. The layers are starting from the top: Application‚ Presentation‚ Session‚ Transport‚ Network
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knows a lot about the Earth ( including its layers)‚ and its environment. Layla- Shy‚ kind‚ sweet‚ genuine‚ generous‚ calm‚ intelligent‚ and self thought. Luna- Smart‚ knowledgeable‚ likes to speak a lot‚ funny‚ and really collaborative. Stella- Gets distracted easily‚ really fashionable‚ loves to look stylish‚ really helpful‚ and kind. Hannah- Very girly‚ loves to shop‚ dress up fancy‚ and really into makeup. Introduction Group Member: Ali Earth Layer: Crust Summary: There are 5 teenage girls
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The environment is affected by the deposition in the ozone layer.It is directly affecting the environment‚ because the environment is being negatively impacted‚ because of the depletion in the ozone. This depletion was created‚ because of all the CFC that is being released by all the factories and other machines that pollute the air. The UVB radiation affects the physiological and developmental processes of plants. Even though there is the existence of various machines and methods to reduce or repair
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target protocols to exploit are the Address Resolution Protocol (ARP)‚ and the Domain Name System (DNS). Steps have been taken to make these protocols more secure in order to prevent MitM attacks. Furthermore‚ the Transport Layer Security (TLS) (and its predecessor‚ Secure Sockets Layer (SSL)) mitigate the risk from MitM attacks over the internet. One of the more targeted protocols to exploit is the Address Resolution Protocol (ARP). This protocol converts
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=========== ORGANIC CHEMISTRY ============ Organic Chemistry Laboratory - CH 201 (2010-2011) Experiment 4B Column and Thin-Layer Chromatography of Capsicum Frutescens L. Pigments John Cyril Abanto*‚ Vernalyn Abarintos and Clarice Gail Abella Department of Chemistry‚ College of Science University of Santo Tomas‚ Espana Street‚ Manila 1050 Date Submitted: September‚ 2010 ____________________________________________________________
Free Chromatography Thin layer chromatography
Sublayers of the data link layer The data link layer has two sublayers: logical link control (LLC) and media access control (MAC). Logical link control sublayer The uppermost sublayer‚ LLC‚ multiplexes protocols running atop the data link layer‚ and optionally provides flow control‚ acknowledgment‚ and error notification. The LLC provides addressing and control of the data link. It specifies which mechanisms are to be used for addressing stations over the transmission medium and for
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4. The Medium Access Sub Layer Broadcast channels [or multi-access channels] are a category of networks and the key issue is how to determine who gets to use the channel when there is competition for it. The protocols which define these factors belong to a sub layer of data link layer called the MAC(medium access control)sub layer. ALOHA: Norman Abramson devised a new and elegant method to solve the channel allocation problem called the “ALOHA” system which used ground-based Radio broad
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Three attacks in SSL protocol and their solutions Hong lei Zhang Department of Computer Science The University of Auckland zhon003@ec.auckland.ac.nz Abstract Secure Socket Layer (SSL) and Transport Layer Security (TLS) is the protocol above TCP‚ which can protect user’s privacy when they sending data from a client side to a web server‚ this is an important protocol due to the expansion of Internet. In fact‚ it is a long way to make the SSL/TLS protocol perfectly. However there are still
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Layer 2 Domains Paper Layer 2 Domains Paper We have chosen an extended star topology connection using a router to designate the VLANS and two 24 port switches to provide the most cost effective setup for this small office network. Being the very small nature of the setup we are using a class C network of 192.168.0.1 that we will designate the first 20 IP addresses of each VLAN as static to support any servers we might install as well as printers we may install in the future. The other
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