Variety refers to heterogeneous sources and the nature of data, both structured and unstructured. (ii) Variety – The next aspect of Big Data is its variety. Hence, ‘Volume’ is one characteristic which needs to be considered while dealing with Big Data solutions. Also, whether a particular data can actually be considered as a Big Data or not, is dependent upon the volume of data. Size of data plays a very crucial role in determining value out of data. (i) Volume – The name Big Data itself is related to a size which is enormous. Looking at these figures one can easily understand why the name Big Data is given and imagine the challenges involved in its storage and processing.ĭo you know? Data stored in a relational database management system is one example of a ‘structured’ data.Īn ‘Employee’ table in a database is an example of Structured Dataīig data can be described by the following characteristics: However, nowadays, we are foreseeing issues when a size of such data grows to a huge extent, typical sizes are being in the rage of multiple zettabytes.ĭo you know? 10 21 bytes equal to 1 zettabyte or one billion terabytes forms a zettabyte. Over the period of time, talent in computer science has achieved greater success in developing techniques for working with such kind of data (where the format is well known in advance) and also deriving value out of it. DBMS MCQs - Database MCQs With Answers Set 7 1.Any data that can be stored, accessed and processed in the form of fixed format is termed as a ‘structured’ data. Database mcqs geeksforgeeks, database mcqs online test, database mcqs pdf, database mcqs test, database mcq with answers pdf, database mcq quiz, database administrator mcqs, database architecture mcqs, oracle database architecture mcqs, database system mcqs with answers, basic database mcq with answers, database basic mcqs, dbms mcq questions, data management mcqs nts, mcq on dbms with answers.
This database mcqs set covers the following topics which are mostly searched in Google. Any student who is preparing for DOEACC A Level, DOEACC B Level, and DOEACC C Level exams can also use Database Questions Answers. The students who are preparing for his university admission test. The job seeker who is preparing for his job test. Who can benefitĭatabase management system mcqs is for those students who are doing a master of computer science with core subjects of the database management system. The semantic object model can represent the perceptions of the user more closely than the E-R model. It is based on the concepts presented by Codd. The semantic object model takes semantic objects as the basic element. It views the entire system as a collection of objects related to one another.
Semantic object model is a logical representation of data in an organization.
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