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CIW 1D0-541 Exam Actual Questions

The questions for 1D0-541 were last updated on April 20, 2024.
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  • Viewing questions 1-4 out of 127 questions
 

Topic 1 - Single Topic

Question #1 Topic 1

With regard to databases, what is normalization?

  • A. The process of reducing the cardinality of a relation
  • B. The process of organizing and refining relations
  • C. The process of duplicating data to reduce the number of tables
  • D. The process of limiting data stored in a table to a specific range of values
Reveal Solution Hide Solution   Discussion   1

Correct Answer: B 🗳️

Question #2 Topic 1

Which three pieces of information did E.F. Codd describe as necessary to retrieve a data value from a relational database?

  • A. Attribute, domain, and tuple
  • B. Entity, relation name, and domain
  • C. Table name, primary key, and entity
  • D. Attribute, relation name, and primary key
Reveal Solution Hide Solution   Discussion   1

Correct Answer: D 🗳️

Question #3 Topic 1

What is a virtual table?

  • A. 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.
  • B. A virtual table is a relation stored in the database; it is used when multiple users access the same relation in a database.
  • C. 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.
  • D. A virtual table is a relation that consists of primary and foreign keys for a particular set of relations in a database.
Reveal Solution Hide Solution   Discussion   2

Correct Answer: A 🗳️

Question #4 Topic 1

Your enterprise has reached the conceptual design phase for a database project. What is the desired goal at the end of this design phase?

  • A. A set of normalized relations
  • B. A reviewed entity-relationship (ER) model
  • C. An entity-relationship (ER) model with no redundant data
  • D. A set of denormalized relations
Reveal Solution Hide Solution   Discussion   1

Correct Answer: B 🗳️

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