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The MCQ: A set of roles is created in the database and authorizations can be granted to; "Database Systems" App Download [Free] with answers: roles, tuples, instances, and schemas for online computer science certification. Solve Concurrency Control Concept in DBMS Quiz Questions, download Google e-Book (Free Chapter) for associates in computer science.

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MCQ 21: A set of roles is created in the database and authorizations can be granted to:

  1. Tuples
  2. Roles
  3. Instances
  4. Schemas

MCQ 22: To revoke an authorization, we use the statement:

  1. Revoke
  2. Modify
  3. Alter
  4. Define

MCQ 23: Roles can be granted to users, as well as to other:

  1. Administrators
  2. Roles
  3. Developers
  4. Creators

MCQ 24: In the authorization graph, a user has an authorization if and only if there is a path from the:

  1. Leaf node
  2. Neighboring node
  3. Child node
  4. Root node

MCQ 25: In most database systems, cascading revocation is the:

  1. Non acceptable behavior
  2. Acceptable behavior
  3. By default behavior
  4. Not encouraged behavior

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