the question of computer networks

Tài liệu The OSI Model: Understanding the Seven Layers of Computer Networks ppt

Tài liệu The OSI Model: Understanding the Seven Layers of Computer Networks ppt

Ngày tải lên : 24/01/2014, 09:20
... an overview of the network process, which can then act as a framework for understanding the details of computer networking. Since the discussion of networking often includes talk of “extra layers”, ... com- bination of the two. The nature of these stacks is that the lower layers do their work in hardware or firmware (software that runs on specific hardware chips) while the higher layers work in software. The ... operate together, no matter who created the protocols and what computer vendor supports them. The main benefits of the OSI model include the following: • Helps users understand the big picture of networking •...
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The Problem of computer illiteracy

The Problem of computer illiteracy

Ngày tải lên : 26/10/2013, 17:15
... Causes  Lack of useful information in the course of information science  Unwillingness to learning  Lack of access to computer  Dissatisfactory school base  Insufficient allocation of application ... Alternatives  Correction of information science course  Simplification of access to computer classes  Increase the motivation ... searching information in the internet  Necessity to ask more advanced people for help  Waste time  Difficulties in employment assistance Alternatives  Correction of information science...
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Tài liệu Develop computer programs for simplifying sums that involve binomial coefficients: The Art of Computer Programming, Volume 1: Fundamental Algorithms pdf

Tài liệu Develop computer programs for simplifying sums that involve binomial coefficients: The Art of Computer Programming, Volume 1: Fundamental Algorithms pdf

Ngày tải lên : 20/12/2013, 19:15
... proof by generating functions, another of the popular tools used by the species Homo sapiens for the proof of identities before the computer era. Next we’ll show what a computerized proof of the ... − n − 1) . 3. For each of the four parts of Problem 2 above, write out the complete proof of the identity, using the full text of the standardized WZ proof together with the appropriate rational ... enjoy both the mathematics and the software. Taken together, they are the story of a sequence of very recent developments that have changed the field on which the game of discrete mathematics is...
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Tài liệu The State of Computer Security BY Marcus J. Ranum CSO Tenable Network Security, Inc. doc

Tài liệu The State of Computer Security BY Marcus J. Ranum CSO Tenable Network Security, Inc. doc

Ngày tải lên : 14/02/2014, 16:20
... Bob the router guy! When you’re done with turning on the VOIP in the router, turn on the IPS security features too!” Conclusion • Our moment in the sun is coming to a close • 5 years of play ... increase Late Golden Age • The worm and the pro hacker • Everyone is online • Horrible levels of vulnerability • Exposure of data and professionalization of cybercrime • Venture community pulls ... CEO of NFR 1997 • CSO, consultant, teacher, writer Some History • The early days of computer security: • Audit function - oversight • Mainframe usage accounting and system log analysis • Often...
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Tài liệu The Art of Computer Virus Research and Defense pptx

Tài liệu The Art of Computer Virus Research and Defense pptx

Ngày tải lên : 17/02/2014, 15:20
... of Computer Viruses 1.3. Automated Replicating Code: The Theory and Definition of Computer Viruses References Chapter 2. The Fascination of Malicious Code Analysis 2.1. Common Patterns of ... This Book Over the last two decades, several publications appeared on the subject of computer viruses, but only a few have been written by professionals ("insiders") of computer virus ... fight against computer viruses on a daily basis. Nowadays, system administrators as well as individual home users often need to deal with computer worms and other malicious programs on their networks. Unfortunately,...
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The Role of Postal Networks in  Expanding Access to Financial Services  docx

The Role of Postal Networks in  Expanding Access to Financial Services  docx

Ngày tải lên : 15/03/2014, 10:20
... leave much of their potential untouched, they clearly are the economic engine of the post office networks. The Role of African Post Offices in Payments In most African countries, the national ... between the ministries of finance, the IMF, and World Bank. In the recent past in Africa, no distinction was made of the roles of the post as the mail provider, as owner of the post office network, ... Verde. The Caixa is another version of the postal savings fund and managed by the post. The Caixas Postais were set up as entities with their own legal status under the management of the post,...
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Principles of Digital Communication Systems and Computer Networks

Principles of Digital Communication Systems and Computer Networks

Ngày tải lên : 18/09/2012, 10:13
... “Principles of Digital Communication Systems and Computer Networks của nhóm em. Phần I – Các hệ thống truyền thông số (Digital Communation System) Chương 2: Lý Thuyết Thông Tin (Information Theory) Claude ... lý quan trọng cho mỗi kỹ sư truyền thông. Tài liệu tham khảo C. E. Shannon. "A Mathematical Theory of Communication." Bell System Technical Journal, Vol. 27, 1948. Tất cả các kỹ sư ... Theory) Claude Shannon đặt nền móng về lý thuyết thông tin năm 1948. Cuốn sách của ông “A Maththemathical Theroy of Communication ” (Một lý thuyết toán học của sự truyền thông tin) được xuất bản trong...
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A STUDY ON THE RELIABILITY OF THE FINAL ACHIEVEMENT COMPUTER-BASED MCQS TEST 1 FOR THE 4TH SEMESTER NON - ENGLISH MAJORS AT HANOI UNIVERSITY OF BUSINESS AND TECHNOLOGY

A STUDY ON THE RELIABILITY OF THE FINAL ACHIEVEMENT COMPUTER-BASED MCQS TEST 1 FOR THE 4TH SEMESTER NON - ENGLISH MAJORS AT HANOI UNIVERSITY OF BUSINESS AND TECHNOLOGY

Ngày tải lên : 10/04/2013, 14:46
... discriminability Hc: the number of correct response in the high group Lc: the number of correct response in the low group The optimal size of each group is 28% of the total sample. For very large samples of examinees, ... before the tests and then the test is written on the basis of the specifications. After the test is written, the specification should be consulted again to see whether the test matches the objectives ... stem. The primary purpose of the stem is to present the problem clearly and concisely. The stem needs to provide the testees a very general idea of the problem and the answer required. The stem...
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Tài liệu The Little Black Book of Computer Viruses docx

Tài liệu The Little Black Book of Computer Viruses docx

Ngày tải lên : 09/12/2013, 17:15
... think of viruses as sort of a black art. The purpose of this volume is to bring them out of the closet and look at them matter -of- factly, to see them for what they are, technically speaking: computer ... yet. There are two kinds of jump 36 The Little Black Book of Computer Viruses The Basics of the Computer Virus A plethora of negative magazine articles and books have catalyzed a new kind of hypochondria ... with computers are simply their own fault. For example, they accidentally delete all the files in their current directory rather than in another directory, as they intended, or they format the...
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