Database admiistration
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The document discusses the responsibilities of a database administrator (DBA). It begins by defining a DBA as a resource that supervises both the database and use of the database management system. It then lists some of the key responsibilities of a DBA, including formulating and implementing access and security policies, planning for disaster recovery, managing archives of removed data, and maintaining the data dictionary. Additional responsibilities mentioned are training users, supporting the database management system, designing the database, and tuning the design to improve performance.
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This document discusses continuous technology versus breakthrough technology and provides examples of each. Continuous technology refers to incremental improvements made to existing infrastructures, knowledge, markets, and involves convergent thinking. Breakthrough technology involves the discovery of new knowledge and can reshape businesses and industries. Some examples provided include cars replacing horses and kerosene replacing lighting. The document argues that breakthrough technologies are occurring rapidly in many industries and nations, presenting both opportunities and threats that are difficult to predict. It recommends an "open source" approach to launching breakthrough energy technologies by making the core technology and plans widely available without patents or licensing to encourage global participation in improving the technology.
System Software vs.Application Software
System software includes operating systems, compilers, loaders, linkers, and interpreters. It manages and controls hardware so that application software can perform tasks. Application software includes programs that do real work for users, like word processors, spreadsheets, graphic presentations, and database management systems. System software is designed to operate computer hardware and provide a platform for running application software, while application software is for specific tasks like document creation, data analysis, presentations, and data storage. Examples of system software include Windows, Linux, compilers from C to machine code, and loaders that load programs into memory, while examples of application software include Microsoft Word, Excel, PowerPoint, and Access.
Protocols
This document compares the OSI model and TCP/IP model. The OSI model has 7 layers - physical, data link, network, transport, session, presentation, and application layer. The TCP/IP model has 4 layers - network access, internet, transport, and application layer. The OSI model is a generic standard while TCP/IP is its implementation for internet. Key differences are that OSI has strict layering and reliably delivers all packets, while TCP/IP has loose layering and TCP reliably delivers packets while IP does not.
Search engine optimization
The document provides an outline for a presentation on search engine optimization, defining SEO as making a site relevant for search engines and users, and describing how search engines work by using crawlers to gather content and build indexes to rank websites based on various on-page optimization techniques like keywords, links, titles, and meta descriptions. It also lists some SEO tools and techniques to use, as well as techniques to avoid, for improving a site's ranking in organic search results.
Understanding creativity
This document discusses creativity and how to nurture it. It defines creativity as possessing newness and transforming existing domains. Creativity involves four stages: preparation, incubation, illumination, and verification. Creativity leads to innovation, which Drucker defined as endowing resources with new wealth-creating capacity. Nurturing creativity involves encouraging challenge, activity-based projects, teamwork, using various creativity techniques and tools, presenting familiar information unfamiliar ways, and making programs exciting and fun with humor. Educational institutions play a key role in enhancing individual and team creative skills to enrich entrepreneurial culture.
Disruptive technology
This document discusses disruptive and emerging technologies. It begins by providing examples of famous incorrect predictions about new technologies like the automobile, telephone, radio, and computers. It then defines sustaining technologies as steady improvements to existing technologies, while disruptive technologies introduce new approaches that can transform an industry. Examples of disruptive technologies provided include the personal computer and digital photography. The document discusses how disruptive technologies appeal to new customer segments before disrupting incumbents. It introduces the concept of the innovator's dilemma, where established companies may not invest in disruptive technologies that do not meet current customer needs. Finally, it discusses models for technology adoption like the technology adoption lifecycle curve and the 2/10 rule.
Introduction to databases
This document introduces databases and database management systems. It discusses the disadvantages of file-based systems, including data duplication, incompatible formats, and fixed queries. A database was created to address these issues by centralizing data storage and control. A database management system provides tools to define, create, maintain and control access to a database. Common examples of databases include those for supermarkets, credit cards, travel agencies, libraries, insurance, and universities.
Feasibility anaylsis
A feasibility study is conducted after exploratory work to assess whether a larger project is advisable. It aims to determine the probable market and income for products and show contributions to society. Market feasibility studies involve testing locations for real estate developments and determining the best location and alternative land uses. They assess the importance of the business in the selected area. A technical feasibility study assesses whether the needed technology exists and is not too difficult to build, and if the firm has experience using that technology. It also estimates volumes of data and frequency of updating to determine if a new system will perform adequately. A schedule feasibility study involves questions about the time and resources available to build the new system and potential interference with business operations. An economic feasibility study determines
Global E- business
Global e-business faces important challenges related to globalization, culture, and language. Companies engaged in the global market can increase revenues but must ensure their websites respect various cultures. Effective global e-business requires considering issues like cultural differences, providing translations into multiple languages using machine or human translators, determining profitability in new markets, pricing in local currencies, and navigating tariffs and quotas set by governments. Proper understanding of these challenges is key to removing geographic barriers and successfully expanding business internationally online.
Information system
The document introduces information concepts such as data, information, and knowledge. It explains that data are raw facts, information is organized data that has additional meaning, and knowledge is understanding based on information. It also discusses the characteristics of valuable information for organizations and decision making as well as the components of computer-based information systems.
Object concepts
This document provides an overview of basic object-oriented concepts in C++. It discusses how objects contain both data and methods, and how an object's data represents its state. Classes are described as templates that define an object's fields and methods. The document also covers how objects inherit characteristics from their superclass in a hierarchy, how objects must be instantiated to be used, and how access modifiers control access to an object's fields and methods.
Domain Name System
The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. A domain name represents an Internet Protocol (IP) resource ultimately identifiable by a numeric IP address. DNS servers store records that map domain names to IP addresses and vice versa. The DNS hierarchy consists of root name servers at the top, authoritative name servers for top-level domains and their subdomains below them. When a user enters a domain name, the DNS server first checks its cache and if it doesn't find a match, it queries authoritative name servers to resolve the IP address associated with the domain name.
Software Development Life Cycle
The document discusses several software development life cycle (SDLC) models:
- The waterfall model is a linear model consisting of requirements, design, implementation, testing, installation, and maintenance phases. It works well for stable requirements but lacks flexibility.
- The spiral model adds risk analysis and prototyping to the waterfall model. Each cycle consists of planning, risk evaluation, development, and planning for the next phase. It allows for early risk assessment and feedback.
- The incremental model prioritizes requirements and implements them in groups, delivering an operational product in each release. It lowers costs but requires good planning.
- The rapid application development (RAD) model emphasizes user involvement and productivity tools. It delivers functionality
Data independence
This document discusses data independence in databases. It defines database schemas, including the internal, conceptual, and external schemas that make up the three-schema architecture. The database state and valid state are also defined. Logical data independence allows changes to the conceptual schema without changing external schemas or applications. Physical data independence allows changes to the internal schema without changing the conceptual schema. Both help ensure that changes to lower-level schemas do not require changes to higher-level schemas and applications.
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LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
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environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
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to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
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ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Database admiistration
- 1. Ashima Wadhwa Assistant Professor (IT) Amity University, Noida
- 2. AGENDA Concept of Database Administration Responsibilities of DBA Policy Formulation and Implementation Planning for Disaster Archives Data Dictionary Management
- 3. Database Administration (DBA) DBA is a resource that supervises both the database and the use of the DBMS. DBA is usually a group, but sometimes it refers to the database administrator.
- 5. Policy Formulation and Implementation Access Privileges Users should access the database only in ways in which they are entitled. Security Access restrictions ensure that the database is secure. Encryption and views implement security. Effective password protection is critical.
- 6. Planning for Disaster Databases can be harmed from hardware and software malfunctions, and outsides forces like floods and power outages. DBA’s must take active role in formulating disaster recovery plans.
- 8. Archives An archive is a place where corporate data is kept. Information in an archive is removed from the database and stored in the archive for future reference. Archives are usually kept in a mass- storage device like a disk, tape, CD, or a DVD. It is important such archives be kept off-site to allow recovery should disaster strike
- 9. Data Dictionary Management Essentially the catalog, but it contains a wider range of information, including information on tables, fields, indexes, and programs. The DBA manages and updates the data dictionary, which establishes naming conventions for tables, fields, etc., and data integrity rules.
- 10. Additional responsibilities of DBA Training DBA gives training on the DBMS and how to access the database DBMS Support The DBA is charged with all aspects of a DBMS, including selection and management DBA must evaluate each prospective DBMS using a checklist.
- 11. Additional Responsibilities of DBA Database design DBA is responsible for tuning the design, i.e., making changes that improve system performance.
- 12. Thanks !