Installing and Configuring SQL Server 2005

  • In order to change collation settings, reinstall SQL Server 2005 on a server with the same collation settings as on another server.
  • In order to install SQL Server 2005 on a computer on which SQL Server 2000 is already installed, install SQL Server 2005 as a named instance.
  • Members of the db_access role can assign permissions to other users to enable them to access and query the database.
  • RAID-0, also known as disk striping, is made up of a disk set in which data is divided into blocks and spread equally in each disk. It provides best performance because data read and data write operations are not limited to a single disk, but to a set of disks. It does not provide data redundancy. Data once lost cannot be recovered.
  • The Service Broker can be attached to a database by using the FOR ATTACH clause of the CREATE DATABASE statement.
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Fundamental Object-Oriented Concepts

  • In Java, a narrowing conversion is also known as an explicit type conversion or casting.
  • A byte can represent values between -128 to 127.
  • An array, in Java, is an ordered collection of primitives, object references, or other arrays. All the elements of an array must be of the same type, except in case of polymorphism.
  • Array elements are initialized to default values, wherever they are created.
  • The increment operator can be used in either of the two forms given below:
    1. Prefix form: In the prefix form, it appears before the operand. For example, ++a;
    2. Postfix form: In the postfix form, it appears after the operand. For example, a ++;
  • Numeric promotions are used to convert the operands in a numeric expression to a common type before an operation is performed between the operands.
  • In Java, there are two kinds of numeric promotions as follows:
    1. Unary numeric promotion
    2. Binary numeric promotion
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    Introduction to JavaScript

    • VBScript is another scripting language that uses Visual Basic code for writing scripts.
    • ECMA approved JavaScript as an international standard in 1997.
    • The Microsoft version of JavaScript is known as JScript.
    • JavaScript is the first scripting language used for a browser.
    • The old name of JavaScript is LiveScript.
    • CGI was used to validate forms when JavaScript was not developed.
    • JavaScript is the default scripting language of Netscape Navigator.
    • If the language attribute is not defined, Netscape Navigator uses JavaScript as the default scripting language.
    • Netscape develops the JavaScript language.
    • A property is an attribute of an object used to change the style of the object.
    • Every property has a value that changes the style of an object.
    • JavaScript is interpreted at runtime. The script is not compiled.
    • The comment tag is used to hide the script from the non-scriptable browsers.
    • The <script>…<script> tag is used to insert scripts in a Web page.
    • An HTML document can contain any number of <script>…<script> tag
    • A variable declared inside the <script>…<script> tag but outside any function is known as global variable and can be accessed from any function within the <script tag>.
    • The increment (++) operator is used to increment the value of a variable by one.
    • Instantiation is a process of creating copies of different objects.

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    Envisioning the Solution

    • A solution concept is developed based on the existing business strategy. A developing team creates the solution concept on the basis of the business requirements and scope of the solution.
    • A project team identifies and understands the current business process in order to incorporate it in the proposed or new system.
    • During the Envisioning phase of the business project, the project team evaluates the current business situation. The team analyzes the difference between the current and expected business situation. A gap analysis is performed to identify a path towards the desired state of a business. The team also identifies and outlines the scope of the project.
    • A team identifies basic solution concept during the Envisioning phase.
    • A feasibility study determines and documents a project’s viability. The analysis of the feasibility study identifies whether a particular business concept can be realized as a scalable design.
    • During the Envisioning phase, various tasks are identified that address the goals and constraints of the project. During this phase, the project team determines the objectives of the solution by identifying business problems or opportunities.
    • A team analyzes business feasibility of a solution during the Envisioning phase.
    • The project scope is the number and complexity of tasks to be performed by a software solution. The scope comprises the overall project requirements and incorporates the constraints imposed on the project by resources, time, and other limiting factors.
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    • Project scope defines what will or will not be included in a project. Therefore, the project scope is the number and complexity of tasks to be performed by a software solution.
    • A team prepares the functional specification that will contain the scope of the solution. The project scope is the number and complexity of tasks to be performed by a software solution.
    • A developer plans and creates modules in order to define scope components in a project.
    • A project team identifies and analyzes the current and expected business system of an organization.
    • The project team identifies a set of initial risks during the Envisioning phase. The best technique to manage a risk is to identify all the potential risks with high priority level and to prevent them by following a good mitigation and prevention strategy.
    • During the solution development, greatest potential risks of an organization are identified.
    • A project team monitors the status of high-priority risks of an organization. The team identifies a set of initial risks during the Envisioning phase. This set of risks is continuously updated at the later phases of the project.
    • A team should identify the biggest threat that can occur within the organization. It should also try to control and mitigate the threat to the organization.
    • Risk Management is a decision-making process that involves the organization, users, and the project team. It deals with the uncertainties that might occur during the application development. This ensures that all the vital assets and resources of the organization are safeguarded.
    • A team identifies business risks of an organization.

    Media and Topologies

    • Centralized computing is an environment in which a mainframe computer provides data storage and computational abilities.
    • Bus topology uses a 10Base2 cable.
    • Bus topology is the easiest to implement.
    • Bus and Ring are zero fault tolerant topologies.
    • Full-mesh topology is the most fault tolerant topology.
    • Mesh topology is a type of physical network design where all devices in a network are connected to each other with many redundant connections.
    • In star topology, when a single connection to one of the network hosts fails, the failed connection will be down and the host will not have network connectivity.
    • LEDs on a network card of a client computer indicates the sending and receiving of data.
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    E-Commerce Site Development

    • MIME stands for Multipurpose Internet Mail Extensions. It is a standard for multi-part, multimedia electronic mail messages and World Wide Web hypertext documents on the Internet.
    • The number of hits per page will help you rank the Web pages in your site according to their popularity. The number of hits per page denotes the number of clicks on that particular page. The more the number of hits, the more popular is the page.
    • Electronic commerce (E-Commerce) includes the buying and selling of goods and services, and the transfer of funds, through digital communications.
    • E-Commerce increases efficiency, opens new markets, and can be used to communicate directly with the customer.
    • A Web site that is created should be efficient and easy to use. This is the main idea behind usability.
    • AutoComplete is a feature of a browser in which the user is provided with the options he has previously used.
    • The integration that can be used to manage data, security, etc., for the sales of goods and services conducted through the Internet is known as e-commerce.
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    Installing and Configuring SQL Server 2005

    • In order to change collation settings, reinstall SQL Server 2005 on a server with the same collation settings as another server.
    • In order to install SQL Server 2005 on a computer on which SQL Server 2000 is already installed, install SQL Server 2005 as a named instance.
    • Members of db_access role can assign permissions to other users to enable them to access and query the database.
    • RAID-0, also known as disk striping, is made up of a disk set in which data is divided into blocks and spread equally in each disk. It provides best performance because data read and data write operations are not limited to a single disk, but to a set of disks. It does not provide data redundancy. Data once lost cannot be recovered.
    • The Service Broker can be attached to a database by using the FOR ATTACH clause of the CREATE DATABASE statement.
    • If a snapshot of a database is present on the same computer on which the database is present, the database cannot be deleted.
    • In order to connect to the DAC, specify ADMIN: server_name in the Connect to the Server dialog box.
    • The login information stored in the master database.
    • In order to secure data that is data transmitted over a network, set the value of the ForceEncryption option on a server to Yes.
    • In order to enable a user to connect to the database, a DBA should add the user to that database.
    • The db_ddladmin fixed database role allows its members to add, modify, or drop objects in the database. Members of the db_ddladmin role can issue DDL statements (e.g. CREATE, ALTER, and DROP) in the database.
    • Member of db_ddladmin role have the permission to execute the T-SQL statements.
    • The sysadmin role allows a user to view the security log.
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    Developing applications that use system types and collections

    • Use the CausesValidation property of the ImageButton class to set a value to indicate whether validation is performed on a Web server control when an ImageButton control is clicked.
    • Installation packages are created for deploying a Web application by using a Web Setup project. A merge module project is used for components to be added to the application.
    • Use the Web Setup project and Deployment project to create installation packages for the deployment of Web-based applications such as XML Web services, Web applications etc., to a Web server.
    • Use a RequiredFieldValidator control to check whether or not an input control contains a value.
    • Use a RegularExpressionValidator control to check whether or not the value entered into a form field matches the pattern specified by a regular expression.
    • Use the validation error messages to be displayed on a Web page in a message box by setting the ShowMessageBox property of the ValidationSummary control to true. By setting the ValidationSummary property of the ValidationSummary control to false, the validation summary will not be displayed on the Web page.
    • Create and sort an array of data using the System namespace.
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    Optimizing the performance of database servers and databases

    • Memory: Pages/sec counter is used to detect whether or not the memory bottleneck is caused by I/O overhead.
    • Disk I/O bottleneck can be monitored by Physical Disk: % Disk Time and Physical Disk: Avg Disk Queue Length counters.
    • The System Monitor tool is used to know the cause of slow authentication.
    • The SQLServer: Buffer Manager performance object is used to check the amount of RAM used by a computer.
    • The Physical Disk: %Disk Time counter measures the pressure on a physical hard disk array.
    • Add more RAM if the reading of Memory: Pages/sec counter is high.
    • Reduce the Maximum Worker Thread configuration settings if the value of System: Processor Queue Length counter is high.
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    Developing applications that use system types and collections

    • Use the CausesValidation property of the ImageButton class to set a value to indicate whether validation is performed on a Web server control when an ImageButton control is clicked.
    • Installation packages are created for deploying a Web application by using a Web Setup project. A merge module project is used for components to be added to the application.
    • Use the Web Setup project and Deployment project to create installation packages for the deployment of Web-based applications such as XML Web services, Web applications etc., to a Web server.
    • Use a RequiredFieldValidator control to check whether or not an input control contains a value.
    • Use a RegularExpressionValidator control to check whether or not the value entered into a form field matches the pattern specified by a regular expression.
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