protocols of data link layer of osi model pdf
Tài liệu Module 7- Data Link Layer CCNA Exploration 4.0 pptx
... Data Link Layer Protocols- The Frame31• Remember that although there are many different Data Link layer protocols that describe Data Link layer frames, each frame ... www.bkacad.comOverviewUpon completion of this chapter, you will be able to:• Explain the role of Data Link layer protocols in data transmission. • Describe how the Data Link layer prepares data for transmission ... consists of virtual connections between the nodes of a network independent of their physical layout. – These logical signal paths are defined by Data Link layer protocols. • The Data Link layer...
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Tài liệu ADC KRONE - White Paper - Data Center - 3 principles of Data Center Infrastructure Design (with n pdf
... manageability.WHITE PAPERThe Three Principles of Data Center Infrastructure DesignThe Three Principles of Data Center Infrastructure DesignPage 5Choosing the Right Mix of EquipmentSince the total spend ... fraction of the entire data center cost, decisions for the so-called physical layer are often taken lightly. But the fact remains that 70% of all network downtime is attributed to the physical layer, ... percentage of terminations as copper, fiber optic cabling and connectivity is a significant part of the data center. Fiber links are also the most critical links because they carry data to and...
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Chapter 2 OSI MODEL pdf
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Tài liệu The OSI Model: Understanding the Seven Layers of Computer Networks ppt
... developed standards for this layer. Note: The Physical Layer of the OSI model is only part of a LAN (Local Area Network). Layer 2 – The Data Link Layer Layer 2 of the OSI model provides the following ... 9The TCP/IP model uses four layers to perform the functions of the seven -layer OSI model. The network access layer is functionally equal to a combination of OSI physical and data link layers (1 ... differently layered arrangement.An Overview of the OSI Model Paul Simoneau, Global Knowledge Course Director, Network+, CCNA, CTPThe OSI Model: Understanding theSeven Layers of Computer NetworksCopyright...
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Hình ảnh Protocols in relation to the OSI model.doc
... SessionNetwork Data link Physical zone 1 zone 2H2:H.323 Protocols in relation to the OSI model G.711G.722G.728G.729G.723.1.1PresentationH.261 ... typical H.323 TerminalVideo I/OEquipmentAudio I/OEquipmentUser Data ApplicationsSystemControlUserInterfaceH.225.0 Layer LocallAreaNetworkIntererfacerecoveryPathDelayVideo codecH261, ... WANAdmission Control Via Zone BandWidth in the Cisco IOS MCM GatepeerMay I call 2111 with a bandwidth of 384K? 1. Setup 2. Alerting 3. Connect 4. TermCapSet 5. TermCapAck 6. mSDet 7. mSDetAck...
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MOB TME - Other aspects of wireless The layer transport - Bluetooth - Wifi Security
... of TCP be affected in by the use of wifi connections?3. What does the use of the mechanism of fast retransmit improve the performances of TCP in wireless environments in?4. Another series of ... information such asthe type of packet and the address of the recipient. The body contains the data to transmit. Theradio layer uses the dispersion of spectrum by jumping of FHSS frequency (Frequency ... apacket of duration of a time interval each one.b) Represent then the sequence of frequencies used on the successive timeintervals when the master station has a packet of a duration of three...
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Radio Link Performance of Third Generation (3G) Technologies For Wireless Networks
... 3.2 Link Quality Control GPRS introduces the concept of Link Quality Control (LQC) to the packet-switched overlay. Link quality control adapts the protection of the data to the quality of ... for data services, but offers the possibility of handing over to a regular 1X carrier in the case of simultaneous voice and data connections. The separate carrier offers the advantage of delivering ... with standard deviation of 7 dB. Single - slot mobile stations. Single Packet Data Channel (SPDC) dedicated to data traffic. Traffic model: Poisson distribution of packet of packet inter-arrival...
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Bullding tables of data
... unnamedTable = new System .Data. DataTable(); System .Data. DataTable namedTable = new System .Data. DataTable("Customer");Visual BasicDim unnamedTable As New System .Data. DataTable() Dim namedTable ... the process of crafting tables that ensure data integrity and take advantage of the processing power of relational database systems. E.F. Codd, inventor of the relational database model, proposed ... tabular data as a collection of collections. Each DataTable object contains a collection of ordered rows, each existing as an instance of a DataRow object. Each row contains its own collection of...
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Statistical Description of Data part 1
... measures of central tendency, the moments of a distribution, the median and mode. In §14.2 we learn to test whether different data sets are drawn from distributions with different values of these ... of integer powers of the values.Best known is the mean of the values x1, ,xN,x=1NNj=1xj(14.1.1)which estimates the value around which central clustering occurs. Note the use of an ... 610Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5)Copyright (C) 1988-1992...
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Statistical Description of Data part 2
... with positive kurtosis is termed leptokurtic; the outline of the Matterhorn is an example. A distribution with negative kurtosis is termedplatykurtic; the outline of a loaf of bread is an example. ... (outside North America).The standard deviation of (14.1.6) as an estimator of the kurtosis of anunderlying normal distribution is96/N. However, the kurtosis depends on sucha high moment that there ... the mean is not the only available estimator of this614Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN 0-521-43108-5)Copyright...
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Statistical Description of Data part 3
... makes use of the following routine for computing the mean and variance of a set of numbers,620Chapter 14. Statistical Description of Data Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC ... can be given lists of individual burnout times or of stellar positions. The data sets on chicken pox and educational level are binned, since we are giventables of numbers of events in discrete ... 1 degrees of freedom.The routine is#include <math.h>void tptest(float data1 [], float data2 [], unsigned long n, float *t,float *prob)Given the paired arrays data1 [1 n]and data2 [1 n],...
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Statistical Description of Data part 4
... the data sets aredrawn from the same distribution. Small values of probshow that the cumulative distributionfunction of data1 is significantly different from that of data2 . The arrays data1 and data2 are ... can be given lists of individual burnout times or of stellar positions. The data sets on chicken pox and educational level are binned, since we are giventables of numbers of events in discrete ... number of data points, Ne= N for the case (14.3.5) of one distribution, andNe=N1N2N1+ N2(14.3.10)for the case (14.3.6) of two distributions, where N1is the number of data points...
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