Download CIW v5 Database Design Specialist.1D0-541.Prep4Sure.2020-02-22.124q.tqb
| Vendor: | CIW |
| Exam Code: | 1D0-541 |
| Exam Name: | CIW v5 Database Design Specialist |
| Date: | Feb 22, 2020 |
| File Size: | 7 MB |
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Demo Questions
Question 1
With regard to databases, what is normalization?
- The process of reducing the cardinality of a relation
- The process of organizing and refining relations
- The process of duplicating data to reduce the number of tables
- The process of limiting data stored in a table to a specific range of values
Correct answer: B
Question 2
Which three pieces of information did E.F. Codd describe as necessary to retrieve a data value from a relational database?
- Attribute, domain, and tuple
- Entity, relation name, and domain
- Table name, primary key, and entity
- Attribute, relation name, and primary key
Correct answer: D
Question 3
What is a virtual table?
- A virtual table is a relation created as the result of data manipulation; it exists only in computer memory, and is not a permanent part of the database.
- A virtual table is a relation stored in the database; it is used when multiple users access the same relation in a database.
- A virtual table is a relation derived from the database data dictionary; it contains metadata about a base relation. A virtual table is a relation derived from the database? data dictionary; it contains metadata about a base relation.
- A virtual table is a relation that consists of primary and foreign keys for a particular set of relations in a database.
Correct answer: A
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