DBMS for Competitive Exams MCQs & Quiz Online PDF Book Download

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Learn database system architectures test MCQs: while an ddl operation acts on or refers to object, it is protected by, with choices encapsulation, encryption, locking, and views log for online computer science bachelors degree. Practice assessment test for scholarships, online learning dbms for competitive exams quiz questions for competitive assessment in computer science major for data analytics certification.

MCQ on DBMS for Competitive Exams Quiz Book Download

MCQ: While an DDL operation acts on or refers to object, it is protected by

  1. Encapsulation
  2. Encryption
  3. Locking
  4. Views log

C

MCQ: Restricting data access and database activities is responsibility of

  1. Data concurrency control
  2. Data access control
  3. Data atomicity control
  4. Data integrity control

B

MCQ: Oracle Database acquires a DDL lock on behalf of?

  1. Explicit action
  2. Transaction
  3. Query
  4. Retrieval

B

MCQ: Definition of a schema object is protected through

  1. Data dictionary lock
  2. Data declaration lock
  3. Data definition lock
  4. Data administrator lock

A

MCQ: Data dictionary cache holds data in form of

  1. Blocks
  2. Buffers
  3. Rows
  4. Columns

C