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Quiz

Data Storage

Brandon Gagon 11 perguntas Atualizado em 26 mai 2018

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Perguntas do quiz (11)

  1. 1The hierarchical database model is based on a ____.
    1. Atree structure
    2. Black of a parent segment
    3. Clack of a child segment
    4. Dmatrix
  2. 2Database models can be grouped into two categories: conceptual models and ____ models
    1. Aimplementation
    2. Blogical
    3. Cphysical
    4. Dquery
  3. 3A(n) ____ model is independent of both hardware and software.
    1. Aconceptual
    2. Bexternal
    3. Cdevelopmental
    4. Dlogical
  4. 4Which model represents the end user’s view of the database?
    1. AInternal
    2. BConceptual
    3. CPhysical
    4. DExternal
  5. 5What type of relationship is expressed with the phrase “Employee manages Store”?
    1. A1:M
    2. B1:1
    3. CM:1
    4. DM:N
  6. 6The key's role is based on a concept known as ____.
    1. Aconsistency
    2. Bavailability
    3. Cdetermination
    4. Duniqueness
  7. 7The ERD is used to graphically represent the ____ database model.
    1. Acondensed
    2. Bphysical
    3. Clogical
    4. Dconceptual
  8. 8A ____ relationship exists when an association is maintained within a single entity.
    1. Aunary
    2. Bternery
    3. Cbinary
    4. Dweak
  9. 9A ____ relationship exists when two entities are associated.
    1. Aunary
    2. Bbinary
    3. Cternary
    4. Dweak
  10. 10The extended entity relationship model (EERM) is sometimes referred to as the ____.
    1. Aentity relationship model
    2. Benhanced entity relationship model
    3. Centity clustering relationship model
    4. Dextended entity relationship diagram

Informações

Descrição
Data Storage
Idioma
English
Visualizações
9
Histórico
Criado em 26 mai 2018 · atualizado em 26 mai 2018
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