chapter 4  data security and storage

... formats and data standards Different formats were implemented by different GIS vendors; different standards come about with different standardization committees The good news about both formats and ... 84/167 Chapter Data entry and preparation ERS 120: Principles of Geographic Information Systems and δf/δy Here, f stands for the elevation field as a function of x and y, and δf/δx, for instance, ... describe the geometry and behaviour of moving and stationary objects on and near the surface of the Earth Figure 4.4: (a) The International Terrestrial Reference System (ITRS), and (b) the International...

Ngày tải lên: 21/10/2014, 10:09

... BACKING UP AND RESTORING DATA 30 DISASTER RECOVERY Chapter 4: BACKING UP AND RESTORING DATA 31 BACKUP SECURITY • Create specific user account for backups • Password-protect tapes • Store and transport ... Chapter 4: BACKING UP AND RESTORING DATA 16 BACKUP JOB TYPES: NORMAL • Backs up all files • Clears the archive bit • Can require large data storage capacity Chapter 4: BACKING UP AND RESTORING DATA ... require considerably less storage space than a normal backup • Longer to backup than incremental, faster restore Chapter 4: BACKING UP AND RESTORING DATA 19 COPY JOBS AND DAILY JOBS • Copy job...

Ngày tải lên: 01/08/2014, 07:20

... with 25 molecules of O2 to form 16 molecules of CO2 and 18 molecules of H2O moles of C8H18 react with 25 moles of O2 to form 16 moles of CO2 and 18 moles of H2O mol C8H18 : 25 mol O2 : 16 mol ... McGraw Hill O + H H O + O H H 11 Limiting and Excess Reactants in the Combustion of Methane CH4(g) + O2(g) → CO2(g) + H2O(g) • If we have molecules of CH4 and molecules of O2, which is the limiting ... Yield, and Percent Yield Example: • When 28.6 kg of C are allowed to react with 88.2 kg of TiO2 in the reaction below, 42.8 kg of Ti are obtained Find the Limiting Reactant, Theoretical Yield, and...

Ngày tải lên: 28/11/2013, 01:11

Ngày tải lên: 17/12/2013, 15:18

... right, and the height by subtracting the top from the bottom On the main monitor, the left and top fields of the BRect returned by Frame() are 0, so the right and bottom fields provide the width and ... window’s: • Size and screen placement • Title • Type or look • Behavioral and peripheral elements The BWindow constructor prototype, shown here, has four required parameters and an optional fifth ... parameters (look and feel) in place of the one type parameter discussed above The separate look and feel parameters provide a means of more concisely stating just how a window is to look and behave...

Ngày tải lên: 26/01/2014, 07:20

... Operating Systems and File Management 19 Handheld Operating Systems Chapter 4: Operating Systems and File Management 20 SECTION File Basics C File Names and Extensions File Directories and Folders ... Systems and File Management 31 File Management Metaphors Storage metaphors help you visualize and mentally organize the files on your disks – Logical storage models Chapter 4: Operating Systems and ... “empty” sectors with random 1s and 0s Files in the Windows Recycle Bin and similar utilities can be undeleted Chapter 4: Operating Systems and File Management 40 Physical File Storage Fragmented...

Ngày tải lên: 06/03/2014, 09:21

... www.bkacad.com Developing a Security Policy • A security policy meets these goals: Informs users, staff, and managers of their obligatory requirements for protecting technology and information assets ... - Website: www.bkacad.com Open Access Network • • • An open security model is the easiest to implement Simple passwords and server security become the foundation of this model If encryption is ... users are not trustworthy, and that threats are frequent Network security departments must clarify that they only implement the policy, which is designed, written, and approved by the corporation...

Ngày tải lên: 16/03/2014, 08:20

... 22 © 2009 Windows Common Dialog Boxes (dlg prefix) • Predefined standard dialog boxes for: – – – – File Open and Saving Printing and Previewing Color selection Font selection • Add the Common Dialog ... tip p 204) • Enabled, True/False • Visible, True/False 4- 16 © 2009 Menu Design Standards • Follow the industry standards for Windows for names, order/location, access keys, shortcut keys • Basic ... Information • Code must be written to retrieve and use the choices made by the user in the Common dialog • Example – Color Dialog displayed – User selects color and clicks OK – Code must be written to...

Ngày tải lên: 13/05/2014, 11:31

... multiply, we must take the two significant sets of digits (6.25 and 3.6) and multiply them together; and we need to take the two powers-of-ten and multiply them together Taking 6.25 times 3.6, we get ... pair of digits in the upper-right hand corner of the display, and are visible only in the "scientific" and "engineering" modes The difference between "scientific" and "engineering" display modes ... multiplication, we can handle the significant digits and powers-of-ten in separate steps (remember that you subtract the exponents of divided powers-of-ten): (2.25 / 6.25) x (1022 / 1018) And the answer...

Ngày tải lên: 09/08/2014, 13:21

... transfer standards Standards are accepted either as industry and de facto standards, or as authoritative national or international standards Industry standards are frequently used standards that were ... required Metadata standards For metadata to be easily read and understood, standards create a common language for users and producers Metadata standards provide appropriate and adequate information ... constituents in x -and ydirection, respectively δx and δy Analogously to the calculation of the variance and standard deviation of a statistical sample, the root mean square errors mx and my of a series...

Ngày tải lên: 21/10/2014, 10:09

... financial, government, and consumer industries 28 It highlighted how to meet domestic and international regulations for corporate-level and government-level standards on security and privacy We believe ... yielding new security issues in current health care systems With appropriate policies and techniques in place, organizations may still have operational handicap in enforcing security [8] First, security ... information technology, and they often lack awareness and training in security enforcement Human factor can constitute the weakest link in the chain of security User awareness promotion and training has...

Ngày tải lên: 12/09/2015, 10:37

... responsibilities of managers • Economic and legal Responsibility to make a profit and obey the law (invisible hand, hand of government, hand of management) • Ethical and discretionary Ethical behaviour ... perspectives: invisible hand, hands of government and management – Social responsibilities of managers – Social stakeholders: shareholders, employees, customers, local and international community, ... corporation can be summed up as ‘make profits and obey the law’ • Hand of government A view holding that the interests of society are best served by having the law and political process guide the corporation’s...

Ngày tải lên: 22/05/2016, 14:23

... in the area: unconsolidated sands and gravels; sandstones; limestones; and basaltic lava flows Of course it is possible to quote examples of sandstone, limestone, and basalt aquitards, yet more ... Gently dipping sandstone aquifers with outcrop area along mountain front; (b) interfingering sand and gravel aquifers extending from uplands in intermountain region; (c) faulted and folded aquifers ... Stratigraphy and Structure The nature and distribution of aquifers and aquitards in a geological system are controlled by lithology, stratigraphy, and structure of the geological deposits and formations...

Ngày tải lên: 08/06/2016, 14:00

... Classification Underfitting and Overfitting Missing Values Costs of Classification © Tan,Steinbach, Kumar Introduction to Data Mining 50 Underfitting and Overfitting (Example) 500 circular and 500 triangular ... – Class counts in each of the partitions, A < v and A ≥ v Simple method to choose best v – For each v, scan the database to gather count matrix and compute its Gini index – Computationally Inefficient! ... to Data Mining 46 Stopping Criteria for Tree Induction Stop expanding a node when all the records belong to the same class Stop expanding a node when all the records have similar attribute values...

Ngày tải lên: 15/03/2014, 09:20

... (4.29) (except ability, of course) Find y1 and its ^ standard error; find y2 and its standard error when Deduc ¼ 4.2 a Show that, under random sampling and the zero conditional mean as^ sumption ... Eð y j x1 ; x2 Þ, and let a2 be the same for x2 Find a1 and a2 in terms of the bj and mj b Rewrite the regression function so that a1 and a2 appear directly (Note that m1 and m2 will also appear.) ... where only assuming that q and x are uncorrelated would not be enough to ensure consistency of OLS: xK q and x can be correlated even if q and x are uncorrelated If q and x are correlated, we can...

Ngày tải lên: 06/07/2014, 08:20

... X•Y denotes the bitwise AND of X and Y; X + Y denotes the bitwise OR of X and Y; X denotes the bitwise complement of X, i.e NOT(X); and X ⊕ Y denotes the bitwise XOR of X and Y These four nonlinear ... provided for M2 and M3 , as shown in Example 4.2 Example 4.2 Referring to Figure 4.1, M2 = 17b439a12f51c5a8 and M3 = 51cb360000000000 are processed as follows: Using Table 3.4, M2 and M3 are divided ... two registers are shifted by the SL and SR i i positions to the left SL and SR are generated by the state transition function F(r ) shown r r in Figures 4.8 and 4.10 In Figure 4.10, the 64-bit...

Ngày tải lên: 09/08/2014, 06:23

... DATA AND INTERNET RESOURCES Table 4F.18 Seepage Rates for Canals Canal Soil Material Seepage (Feet per Day) Sandy loam Gravelly loam Fine sandy loam and adobe Sand and sandy loam Loam and sandy ... Disturbance Forestland Grassland Forestland Forestland Forestland Forestland Row crop Pastureland Forestland Planting row crops Planting row crops Building logging roads Woodcutting and skidding Fire ... sandy loam Adobe Fine sandy loam 8.2 5.3 3.8 3.4 3.3 3.0 2.1 Canal Soil Material Seepage (Feet per Day) Loam and adobe Loam Silty clay Sand and silty clay Sand and clay Loam and gravelly loam 1.4...

Ngày tải lên: 11/08/2014, 21:21

... created:     OJ and milk, OJ and detergent, OJ and soda, OJ and cleaner Milk and detergent, milk and soda, milk and cleaner Detergent and soda, detergent and cleaner Soda and cleaner This is ... three items, A, B, and C The only rules to consider are those with all three items in the rule and with exactly one item in the result: If A and B, then C If A and C, then B If B and C, then A What ... threshold also implies that: A and B must appear together in at least 10,000 transactions; and, A and C must appear together in at least 10,000 transactions; and, A and D must appear together in...

Ngày tải lên: 14/08/2014, 02:21

... command and a 1- or 2-pixel radius to snatch up those stray, deselected pixels The Smooth command can also eliminate jagged edges along the outside of your selection ߜ Expand: The Expand command ... modification commands The next group of commands in the Select menu actually holds six separate commands, including Refine Edge (discussed earlier in this chapter), and the five Modify commands, each ... the Grow and Similar commands, which are somewhat like the Magic Wand with Contiguous (Grow) and without Contiguous (Similar) selected on the Options bar (In fact, they use the Magic Wand’s Tolerance...

Ngày tải lên: 27/08/2012, 14:35

... Identification and authentication Overview of Security Policies 17 Records retention and backup 18 Security Awareness and education 19 Partner and 3rd party connectivity 20 System development and deployment ... monitoring and audit for policy compliance 13 Firewall implementation and management 14 Virus prevention and protection 15 System and network ownership and management 16 End user accountability and ... accomplished? Overview of Security Policies The following is a list of standard common core security policies Data ownership, classification, and security Trans-border data flow Data and resource access...

Ngày tải lên: 17/09/2012, 09:40