It is very difficult to manage data for which of the following reasons? … Data are scattered throughout organizations. Data are stored in the same format throughout organizations. The decreasing amount of external data needs to be considered. Show
What is a standardized language used to manipulate data?Contents
structured query language. A standardized language used to manipulate data. What does the use of databases enable organizations?The management of data across the entire organization is most accurately defined as: … The use of databases enables organizations to: Minimize data isolation. Which of the following is a repository of historical data that are organized to support decision makers in an organization?A data warehouse is a repository of historical data that are organized by subject to support decision makers in the organization. Which of the following are examples of big data?Big data comes from myriad sources — some examples are transaction processing systems, customer databases, documents, emails, medical records, internet clickstream logs, mobile apps and social networks. How do databases manipulate data?A data control language (DCL) is a syntax similar to a computer programming language used to control access to data stored in a database (authorization). … Examples of DCL commands include: GRANT to allow specified users to perform specified tasks. REVOKE to remove the user accessibility to database object. What is data control language and what are those?The correct answer is option D (can be analyzed with traditional spreadsheets). Big data cannot be analyzed with traditional spreadsheets or database systems like RDBMS because of the huge volume of data and a variety of data like semi-structured and unstructured data. Which of the following is not a characteristic of big data?data mart. an approach to managing data and information across an. entire organization. data governance. a method that organizations use in data governance. What is a formal approach to managing data consistently across an entire organization?provide real-time information in response to requests. … maintains information about various types of objects (inventory), events (transactions), people (employees), and places (warehouses). database management system. creates, reads, updates, and deletes data in a database while controlling access and security. What creates reads updates and deletes data in a database while controlling access and security?Data Warehouse Defined A data warehouse is a type of data management system that is designed to enable and support business intelligence (BI) activities, especially analytics. Data warehouses are solely intended to perform queries and analysis and often contain large amounts of historical data. What is data warehouse in management information system?Answer) c. The data warehouse does not replace the need for all other reporting systems within an organization. Rest all the statements are true as per the book => Decision Support and Business Intelligence Systems. … Rest all statements are properties of a data warehouse. Which of the following is not true of a data warehouse?A data warehouse is database system which is designed for analytical analysis instead of transactional work. Data mining is the process of analyzing data patterns. Data is stored periodically. Data is analyzed regularly. Data warehousing is the process of extracting and storing data to allow easier reporting. What is data warehouse in data mining?Explanation: The examination of large amounts of data to see what patterns or other useful information can be found is known as Big data analytics. … Explanation: Both data and cost effective ways to mine data to make business sense out of it makes Big Data analysis difficult to optimize. What are the challenges of big data?Data growth issues One of the most pressing challenges of Big Data is storing all these huge sets of data properly. The amount of data being stored in data centers and databases of companies is increasing rapidly. As these data sets grow exponentially with time, it gets extremely difficult to handle. What makes big data analysis difficult to optimize?Data Management, Defined Data management is the practice of collecting, keeping, and using data securely, efficiently, and cost-effectively. … Managing digital data in an organization involves a broad range of tasks, policies, procedures, and practices. What are big data problems?Data manipulation allows you to update, modify, delete, and input data into a database. This means that you can leverage data to obtain in-depth insights and make better business decisions. Often, data coming from source systems include redundant, erroneous, or unwanted information. What is data management explain?Data manipulation is the changing of data to make it easier to read or be more organized. … Computers may also use data manipulation to display information to users in a more meaningful way, based on code in a software program, web page, or data formatting defined by a user. Why might such data need to be retrieved or manipulated?In SQL, which of the following is not a data definition language commands? Explanation: With RENAME statement you can rename a table. RENAME, REVOKE and GRANT are DDL commands and UPDATE is DML command. 5. Which one is manipulated of data?Explanation: GRANT is the keyword which is used with Data Control Language statements. Explanation: DCL is used to perform the action like authorization, Access and other control over database. Explanation: DCL command like Grant and Revoke is used for to give access on the database. Which of the following are Data Control Language commands?Verifiability is NOT one of the V’s of Big Data. ( There are 5 V’s of Big data which comprises the velocity, volume, value, variety, and veracity of the data. Which is not part of the data definition language?Volume, velocity, variety, veracity and value are the five keys to making big data a huge business. What are the main statements of Data Control Language Mcq? Is a repository of historical data?A "data warehouse" is a repository of historical data that is organized by the subject to support decision-makers in the organization. Once data is stored in a data mart or warehouse, it can be accessed.
Which of the following is often used as the main repository of a company's historical data ie its corporate memory )?Data warehouses often serve as the main repository of the firm's historical data, or in other words, its corporate memory, and will often serve as an archive of past firm performance.
What kind of a system is when database contains historical performance data?An analytic database, also called an analytical database, is a read-only system that stores historical data on business metrics such as sales performance and inventory levels. Business analysts, corporate executives and other workers run queries and reports against an analytic database.
What is used to ensure that data is organized most efficiently in a database?A database is managed by a database management system (DBMS), a systems software that provides assistance in managing databases shared by many users. A DBMS: 1. Helps organize data for effective access by a variety of users with different access needs and for efficient storage.
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Which of the following is a repository of historical data that are organized to support decision makers in an organization?
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