A data base, a DBMS, and the application programs that use the data nuke up a da

Question

A data base, a DBMS, and the application programs that use the data nuke up a database environment A Database Administrator is a skilled and trained IS professional who directs all activities related to an organisation's database, including providing security from intruders In a database, an attribute is a general class of people, places, or things for which data is collected, stored, and maintained In a database table, a collection of attributes about a specific object is an entity/record Today, all organizations use the relational database approach to data management In a database table, the specific value of an attribute is called a data entity Due to their size, all databases must be stored on mainframe computers or other large, powerful computers Climate control is an important component of modem data centers Business and technology vendors are working to develop green data centers that run more efficiently and require less energy for processing and cooling Microsoft built a data center taking up 16 football fields of space packed with servers When organizing a database, key considerations include determining what data to collect, who will have access to it. how they might want to use it. and how to monitor database performance A data model is a diagram of data attributes and their relationships The relational model describes data using a standard tabular format, all data elements are placed in tables called relations Microsoft is currently the market leader in databases, with about three-fourths of the multi-billion dollar database market In the relational model, each row of a table represents a data entity or record and each column of the table represents an attribute 16 While manipulating data using SQL, "selecting" involves combining two or more tables While manipulating data using SQL, "projecting involves eliminating rows in a table L One of the primary advantages of a relational database is that it allow* tables to be linked to reduce data redundancy and allows data to be organized logically The relational database model is by far the most widely used model in today's DBMS 20 One of the steps in installing and using a large database involves telling" the DBMS the logical and physical structure of the data and the relationships among the data for each user The DBMS serves as an interface between the database and the applications The Database Administrator is an important non-technical individual responsible for defining and implementing consistent principles for a variety of data issues, including setting data standards and data definitions that apply across all the databases in an organization The DBA must have a clear understanding of the fundamental business of the organization, be proficient in the use of selected database management systems, and stay abreast of emerging technologies and new design approaches A data warehouse stores historical data that has been extracted from operational systems, external sources, and. sometimes, even unique sources Big data refers to Large amounts of unstructured data from sources such as the Internet, photos, videos, audio, social networks, and sensors that is difficult to capture, store, and manipulate using traditional database management systems SQL. stands for Standard Query Language Predictive analysis is a form of data mining that combines historical data with assumptions about future conditions to predict the outcome of events Counterintelligence turns data into useful information that then is kept closely guarded to avoid this information from failing into the hands of the wrong employees Business intelligence is gained through industrial espionage and the gathering of this information often includes illegal or unethical means Data Loss Prevention (DLP) and data mining are essentially the same things

Explanation / Answer

1>True

2>True

3>False

4> True

5>False (Because relational database is not that much powerful and it only deals with structured data, today some organisations uses databases which works on NoSQL).

6>False

7>False

8>True

9>False

10>True

11>True

12> False(Because it is the diagram of data Entities and their relationships)

13>True

14>False(Oracle is the market leader today)

15>True

16>false( Because selection operation selects those rows of table that satisfy the given condition .)

17>false( Because projection operation chooses column(s) that satisfy a given condition.)

18>True

19>True

20> True

21> True

22>True

23>True

24> True

25>True

26>False(It stands for Structured Query Language)

27>True

28>True

29>False

30>False

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