Data Mining & Data Ware House Questions and Answers
Data Mining & Data Warehouse Questions with Answers are vital for understanding large-scale data analysis and storage techniques in database management systems (DBMS). Featured often in programming questions and answers for competitive exams, this topic covers key concepts like OLAP, ETL processes, and data modeling. Companies like Infosys, CTS, and IBM frequently test candidates on these concepts during placements. Practicing these MCQs with explanations helps students enhance their analytical and SQL-based problem-solving skills. Download free Data Mining & Data Warehouse aptitude questions with solutions PDF or take our online tests for quick practice.
Data Mining & Data Ware House
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96 questions
31. Decision trees is
- A family of relational database management systems marketed by IBM
- Interactive systems that enable decision makers to use database and models on a computer in order to solve ill-structured problems
- It consists of nodes and branches starting from a single rot node. Each node represents a test, or decision.
- None of these
32. Deep knowledge referred to
- It is hidden within a database and can only be recovered if one is given certain clues be recovered if one is given certain clues (an example IS encrypted information)
- the process of executing implicit previously unknown and potentially useful information from dat(A)
- An extremely complex molecule that occurs in human chromosomes and that carries genetic information in the form of genes.
- None of these
33. Discovery is
- It is hidden within a diatabase and can only be recovered if one is given certain clues (an example if one is given certain clues (an example IS encrypted information).
- The process of executing implicit previously unknown and potentially useful information from dat(A)
- An extremely complex molecule that occurs in human chromosomes and that carries genetic information in the form of genes.
- None of these
34. DNA (Dexoyribonucleic acid)
- It is hidden within a database and can only be recoverd if one is given certain clues (an example IS encrypted information).
- The process of executing implicit previously unknown and potentially useful information from dat (A)
- An extremely complex molecule that occurs in human chromosomes and that carries genetic information in the form of genes.
- None of these
35. Enrichment is
- A stage of the KDD process in which new data is added to the existing selection
- The processo of finding solution for a pssible solutions according to some pre-defined order and then testing them.
- The distance between two points as calculated using the Pythagoras theorem.
- None of these
36. Enumeration is referred to
- A stage of the KDD process in which new data is added to the existing selection
- The process of finding a solution for a problem simply by enumerating all possible solutions according to some pre-defined order and then testing them
- The distance between two points as calculated using the Pythagoras theorem.
- None of these
37. Euclidean distance measure is
- A stage of the KDD process in which new data is added to the existing selection
- The process of finding a solution for a problem simply by enumerating all possible solutions according to some pre-defined order and then testing them.
- The distance between two points as calculated using the Pythagoras theorem
- None of these
38. Heuristic is
- A set of databases from different vendors, possibly using different database paradigms
- An approach toa a problem that is not guaranteed to work but performs well in most cases
- Information that is hidden in a database and that cannot be recovered by a simply SQL query.
- None of these
39. Heterogeneous databases referred to
- A set of database from different vendors, possibly using different database paradigms
- An approach to a problem that is not guaranteed to work but performs well in most cases
- Information that is hidden in a database and that cannot be recovered by a simply SQL query
- None of these
40. Hidden knowledge referred to
- A set of database from different vendors, possibly using different database paradigms
- An approach to a problem that is not guaranteed to work but performs well in most cases
- Information that is hidden in a database and that cannot be recovered by a simple SQL query
- None of these