: III / VI SUBJECT : COMPUTER COMMUNICATION AND NETWORKS Question Bank UNIT I 1. Write about the Evolution of data networks. 2. Explain the various topologies in networking. 3. Explain the ISO – OSI layer model of data communications. 4. Explain the Physical layer functions and various Wired media in detail. 5. Differentiate the connection oriented and connection less data service. 6. Explain the radio wave communications in detail. UNIT II 1. What are the various Local area
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Mobile Phase The mobile phase is the phase that moves through the stationary phase (explain that stuff). As the mobile phase is moving through the stationary phase‚ it picks up compounds that need to be tested‚ taking those compounds with it. Through adsorption‚ the mobile phase separates into different components (soinc). The mobile phase can be liquid‚ gas‚ or supercritical fluid. How Does Chromatography Work? Chromatography is a surface effect. It works by first starting off with an unidentified
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using layers. The message is first created at the application layer using a software application. This software translates the message based on the protocol being used to transfer the message and places the necessary information along with the message into a Protocol Data Unit (PDU) which is also known as a ‘packet’. This packet is then passed on to the Transport Layer. The transport layer‚ using its own Transmission Control Protocol‚ or TCP‚ takes the packet from the application layer and places
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Installations: Operating system of network: Install file and print sharing: Negative aspects of the Internet: Network topology Dividing the transmitted bit stream into frames and determine which route the subnet to use. 2.4 OSI model and the 7 layer diagram. 1. Difference between OSI and TCP/IP Connection – oriented communication and connection less communication Benefit of network Network: Network is very popular common word now. It is a collection
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create standards that apply to multiple countries. 5. Which of the following are true about the commonly used version of the TCP/IP model as shown in this chapter? (Choose two answers.) C) The physical layer sits just below the data link layer. D). The network layer sits in the middle of the five layers. 6. The TCP/IP model refers to standards other than those the IETF defines in RFCs. Which of these standards groups is typically the source of external LAN standards? (Choose two answers.) A) ITU B)
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business information and resources. Since the business is now expanding to a new office with 100 additional personnel‚ migration to a three-layer network architecture is required support business growth and achieves the high availability and security objectives. A three-layer network infrastructure model that includes the Core‚ Distribution and Access layers as depicted in Exhibit 3 will add redundancy‚ increase scalability and facilitate improved performance now and well into the company’s future
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now seems like a good time to learn how the technology works‚ how it can be deployed‚ and what issues still need to be addressed. MPLS operates at an OSI Model layer that is generally considered to lie between traditional definitions of Layer 2 (data link layer) and Layer 3 (network layer)‚ and thus is often referred to as a "Layer 2.5" protocol. It was designed to provide a unified data-carrying service for both circuit-based clients and packet-switching clients which provide a datagram service
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Node In communication networks‚ a node (Latin nodus‚ ‘knot’) is a connection point‚ either a redistribution point or a communication endpoint (some terminal equipment). The definition of a node depends on the network and protocol layer referred to. A physical network node is an active electronic device that is attached to a network‚ and is capable of sending‚ receiving‚ or forwarding information over a communications channel Workstation A workstation is a high-end microcomputer designed for technical
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2 1. Which of the following protocols are examples of TCP/IP transport layer protocols? B. UDP(Your Answer) D. TCP(Your Answer) 2. Which of the following protocols are examples of TCP/IP network access layer protocols? B. Ethernet(Missed) C. PPP(Missed) 3. The process of HTTP asking TCP to send some data and make sure that it is received correctly is an example of what? B. Adjacent-layer interaction(Your Answer) 4. The process of TCP on one computer marking
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Title Identification of Analgesic Compounds Using Thin Layer Chromatography Abstract The objective of laboratory experiment six was to identify an unknown analgesic tablet using Thin Layer Chromatography (TLC) analysis. The procedure involved preparing TLC plates‚ solubilizing standard analgesics (ibuprofen‚ aspirin‚ acetaminophen‚ caffeine) and the unknown in isopropyl alcohol (IPA)‚ and developing the plates in acetone. Rf values were calculated for each compound. The unknown tablet showed an Rf
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