DBMS for Competitive Exams MCQs & Quiz Online PDF Book Download

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Learn database system architectures MCQ: while an ddl operation acts on or refers to object, it is protected by, with choices encapsulation, encryption, locking, and views log for information technology masters programs. Practice merit scholarships assessment test, online learning dbms for competitive exams quiz questions for competitive exams in computer science major .

MCQs on DBMS for Competitive Exams PDF 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