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The MCQ: While an DDL operation acts on or refers to the object, it is protected by; "DBMS for Competitive Exams" App Download [Free] with answers: encapsulation, encryption, locking, and views log for online SQL language certification. Practice DBMS for Competitive Exams Quiz Questions, download Google e-Book (Free Chapter) for computer science associate degree.

DBMS for Competitive Exams MCQs PDF Download – Prep Test

MCQ 1: While an DDL operation acts on or refers to the object, it is protected by:

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

MCQ 2: Restricting data access and database activities is the responsibility of:

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

MCQ 3: Oracle Database acquires a DDL lock on behalf of?

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

MCQ 4: The definition of a schema object is protected through:

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

MCQ 5: The data dictionary cache holds data in the form of:

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

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