Database Systems Quiz PDF - Complete

View of Data Quiz MCQ Online p. 120

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Practice View of Data quiz questions and answers PDF, view of data trivia questions 120 to learn online Database Systems course for online classes. Introduction to DBMS MCQ questions, View of Data Multiple Choice Questions (MCQ) for online college degrees. "View of Data Quiz" PDF eBook: relational algebra, sql data types and schemas, view of data test prep for computer information science.

"The abstraction level that describes complex low-level data structures in detail, is" MCQ PDF: view level, physical level, virtual level, and logical level for associates in computer science. Solve introduction to dbms questions and answers to improve problem solving skills for free online classes.

Trivia Quiz on View of Data MCQs

MCQ: The abstraction level that describes complex low-level data structures in detail, is

Physical level

View level

Virtual level

Logical level

MCQ: The third level of abstraction, that simplifies the user interaction to the system is

Virtual level

Physical level

Logical level

View level

MCQ: An index on an attribute of a relation is a data structure that allows database system to find tuples in relation that have specified value for attribute

Efficiently

Inefficiently

Costly

Optimized

MCQ: The expression r -s represents a

Arity

Unity

Projection

Set-difference

MCQ: Declarative DMLS requires a user to specify what data are needed and

Specifying how to get data

Provides data model