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Database Systems MCQs – Mock Test 258

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Learn Lock Based Protocols Multiple Choice Questions (MCQ) with Answers PDF (Lock Based Protocols MCQs PDF e-Book) download Ch. 3-258 to study Database Systems Practice Tests. Study Concurrency Control quiz answers PDF, Lock Based Protocols Multiple Choice Questions (MCQ Quiz) to complete DBMS coursework. Download the Lock Based Protocols MCQ App: Free Database Systems MCQ App to study history of database systems, relational algebra, transaction model, lock based protocols test prep for database online instruction.

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Lock Based Protocols MCQs – Mock Test 258 PDF Download

MCQ 1286: The data item may be locked by:

  1. 2 modes
  2. 3 modes
  3. 4 modes
  4. 5 modes

MCQ 1287: For an individual transaction ensuring consistency is the responsibility of:

  1. Process itself
  2. System programmer
  3. Database integrity manager
  4. Application programmer

MCQ 1288: The rename operation of any relational algebra is:

  1. Strictly required
  2. Not strictly required
  3. Dependent
  4. Complex

MCQ 1289: Relational databases had become competitive with network and hierarchical database systems even in the area of performance, in:

  1. 1960s
  2. 1970s
  3. 1980s
  4. 1990s

MCQ 1290: A query takes as input several tables and returns a:

  1. Multiple Records
  2. Multiple Schemas
  3. Multiple tables
  4. Single table

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