Q. ER diagram is a ------------t

  • (A) Design
  • (B) Coding
  • (C) Testing
  • (D) None of above
πŸ’¬ Discuss
βœ… Correct Answer: (A) Design

Q. ER diagram is a ________of the database system which provides high level conceptual data model and supports the users perception of the data.

  • (A) Graphical representation
  • (B) Hierarchical representation
  • (C) Both of these
  • (D) None above these
πŸ’¬ Discuss
βœ… Correct Answer: (A) Graphical representation

Q. ________ is an object in to real world that is distinguishable from all other objects

  • (A) Entity
  • (B) Attribute
  • (C) Both
  • (D) None
πŸ’¬ Discuss
βœ… Correct Answer: (A) Entity

Q. _______ is set of entities of the same type that share the same properties attributes.

  • (A) Entity
  • (B) Attribute
  • (C) Both
  • (D) None
πŸ’¬ Discuss
βœ… Correct Answer: (A) Entity

Q. Each entity has a set of _____________

  • (A) Entity
  • (B) Attribute
  • (C) Row
  • (D) None
πŸ’¬ Discuss
βœ… Correct Answer: (B) Attribute

Q. ______ attributes cannot be divided into subparts

  • (A) Simple
  • (B) Composite
  • (C) Single valued
  • (D) Multivalued
πŸ’¬ Discuss
βœ… Correct Answer: (A) Simple

Q. _________ attributes can be divided into subparts.

  • (A) Simple
  • (B) Composite
  • (C) Single valued
  • (D) Multivalued
πŸ’¬ Discuss
βœ… Correct Answer: (B) Composite

Q. __________entity does not have a value for an attribute.

  • (A) Null
  • (B) Composite
  • (C) Single valued
  • (D) multivalued
πŸ’¬ Discuss
βœ… Correct Answer: (A) Null

Q. ________ represent entity set.

  • (A) Ellipses
  • (B) Rectangles
  • (C) Diamonds
  • (D) Lines
πŸ’¬ Discuss
βœ… Correct Answer: (B) Rectangles

Q. ___________ represent attributes

  • (A) Ellipses
  • (B) Rectangles
  • (C) Diamonds
  • (D) Lines
πŸ’¬ Discuss
βœ… Correct Answer: (A) Ellipses

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