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The MCQ: A subclass also inherits participation in the relationship sets in which its superclass is; "Extended ER Features MCQ" App (Android, iOS) with answers: invoked, called, executing, and participating for online degrees. Practice Database Design and ER Model Questions and Answers, Google Book to download free chapter for associates in computer science.

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MCQ 1366: A subclass also inherits participation in the relationship sets in which its superclass is:

  1. Called
  2. Invoked
  3. Participating
  4. Executing

MCQ 1367: A superkey may contain extraneous:

  1. Attributes
  2. Keys
  3. Instances
  4. Entries

MCQ 1368: We can write 'relation A contains relation B' as:

  1. exists (B except A)
  2. exists (A except B)
  3. notexists (A except B)
  4. notexists (B except A)

MCQ 1369: High throughput can be obtained by system component's:

  1. Low utilization
  2. High utilization
  3. Low responses
  4. High responses

MCQ 1370: Any database modification that would cause a null to be inserted in an attribute declared to be not null generates an:

  1. Exception
  2. Rejection
  3. Output
  4. Error

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