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Which of the following statements is wrong?

  1. $2-$ phase Locking Protocols suffer from dead locks.
  2. Time-Stamp Protocols suffer from more aborts.
  3. Time-Stamp Protocols suffer from cascading roll back where as $2-$phase locking Protocol donot.
  4. None of these
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Option C

2-Phase locking: It provides a serializable schedule but does not provides a deadlock free serializable schedule. Deadlock might occur using this concurrency control mechanism.

Time Stamp Protocol: It suffers more aborts in comparison of other concurrency control protocols because of allowing the execution of the transactions based upon their time stamp ordering. A transaction with higher timestamp is allowed to execute otherwise if a transaction with lower timestamp requests for execution then in that case that transaction will be aborted.

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