Podcast
Questions and Answers
What is the basis for the identification and high-level description of the main data objects in a database?
What is the basis for the identification and high-level description of the main data objects in a database?
- Physical Model
- External Schema
- Internal Schema
- Conceptual Schema (correct)
Which database model operates at the lowest level of abstraction?
Which database model operates at the lowest level of abstraction?
- Conceptual Schema
- External Schema
- Internal Schema
- Physical Model (correct)
In database design, what requires the designer to match characteristics and constraints from the conceptual model to the selected implementation model?
In database design, what requires the designer to match characteristics and constraints from the conceptual model to the selected implementation model?
- External Schema
- Physical Model
- Conceptual Schema
- Internal Schema (correct)
Which database schema depicts a specific representation using database constructs supported by the chosen database?
Which database schema depicts a specific representation using database constructs supported by the chosen database?
What aspect of the physical model makes it both software and hardware dependent?
What aspect of the physical model makes it both software and hardware dependent?
What are the main features of NoSQL databases?
What are the main features of NoSQL databases?
How do NoSQL databases handle adding capacity during high demand?
How do NoSQL databases handle adding capacity during high demand?
Why are most NoSQL databases geared toward performance rather than transaction consistency?
Why are most NoSQL databases geared toward performance rather than transaction consistency?
What do distributed databases do to ensure high availability and fault tolerance?
What do distributed databases do to ensure high availability and fault tolerance?
What are the three levels of data abstraction defined by ANSI/SPARC architecture?
What are the three levels of data abstraction defined by ANSI/SPARC architecture?
What does the external model represent?
What does the external model represent?
What does the term 'Velocity' refer to in the context of data?
What does the term 'Velocity' refer to in the context of data?
Which of the following is a general characteristic of NoSQL databases?
Which of the following is a general characteristic of NoSQL databases?
What is one advantage of NoSQL databases regarding distributed database architecture?
What is one advantage of NoSQL databases regarding distributed database architecture?
In what way are NoSQL databases geared towards when considering performance?
In what way are NoSQL databases geared towards when considering performance?
What type of data are NoSQL databases particularly suited for handling?
What type of data are NoSQL databases particularly suited for handling?
Which characteristic is NOT typically associated with NoSQL databases?
Which characteristic is NOT typically associated with NoSQL databases?
