Free MCQsLearn App Download - View of Data Practice Test PDF Download eBook p. 120
Learn View of data mock test for exam, view of data MCQ with answers pdf to solve data science test 120 for online job interview. Practice Introduction to DBMS Trivia Questions and answers, view of data Multiple Choice Questions (MCQ) for online DBMS, DBA. Free view of data MCQs, 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", view of data Multiple Choice Questions (MCQ) with choices view level, physical level, virtual level, and logical level for software engineering degrees. Learn introduction to dbms questions and answers with free online certification courses for free online classes.
Trivia Quiz on View of Data PDF Download eBook
MCQ: The abstraction level that describes complex low-level data structures in detail, is
- Physical level
- View level
- Virtual level
- Logical level
A
MCQ: The third level of abstraction, that simplifies the user interaction to the system is
- Virtual level
- Physical level
- Logical level
- View level
D
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
A
MCQ: The expression r -s represents a
- Arity
- Unity
- Projection
- Set-difference
D
MCQ: Declarative DMLS requires a user to specify what data are needed and
- Specifying how to get data
- Provides data model
- Provides Schema
- Not specifying to get data
D