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Extended ER Features Quiz Questions and Answers PDF Download eBook p. 274

Practice Extended er features quiz questions and answers PDF, extended er features MCQ with answers to solve data science worksheet 274 for online past papers exam. Practice Database Design and ER Model quiz questions with answers, extended er features Multiple Choice Questions (MCQ) for online DBMS, DBA. Free extended er features MCQs, integrity constraints, aspects of database design, nested subqueries, database keys, extended er features test prep for online software development courses.

"A subclass also inherits participation in the relationship sets in which its superclass is", extended er features Multiple Choice Questions (MCQ) with choices invoked, called, participating, and executing for online computer engineering classes. Learn database design and er model questions and answers with free online certification courses to learn free online courses.

Quiz on Extended ER Features PDF Download eBook

Extended ER Features Quiz

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

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

C

Database Keys Quiz

MCQ: A superkey may contain extraneous

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

A

Nested Subqueries Quiz

MCQ: 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)

D

Aspects of Database Design Quiz

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

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

B

Integrity Constraints Quiz

MCQ: 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

D