Concurrency in Index Structures MCQs Quiz Online PDF Download

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MCQs on Concurrency in Index Structures Quiz PDF Download

MCQ: System must deal with deadlocks that are not prevented by using schemes of

  1. Validation
  2. Deadlock detection
  3. Deadlock recovery
  4. Both A and B

D

MCQ: A scheme that creates a new version of a data item for each transaction is defined by

  1. Concurrency control scheme
  2. Multiversion concurrency control scheme
  3. Timestamp concurrency control scheme
  4. Wound concurrency control scheme

B

MCQ: A transaction that is inserting a new tuple into database is given an

  1. Shared lock
  2. Mutual lock
  3. Exclusive lock
  4. NO lock

C

MCQ: Concurrency control is a challenging task for transactions that have

  1. Application accesses
  2. I/O activities
  3. User interactions
  4. Application interactions

C

MCQ: In preemption technique, transactions are assigned a unique timestamp to decide whether it should wait or

  1. Executed
  2. Committed
  3. Aborted
  4. Rolled back

D