Question
Quick sort average time
complexitySolution
Quick Sort is a divide-and-conquer algorithm that works by selecting a 'pivot' element from the array and partitioning the other elements into two sub-arrays, according to whether they are less than or greater than the pivot. The sub-arrays are then sorted recursively.
- O(N log(N)) : This is the average time complexity of Quick Sort. The reason is that in an average case, the pivot divides the array into two nearly equal parts, and sorting each part takes O(log(N)) divisions, with each division taking O(N) time to partition the array.
- O(N) : This represents linear time complexity, which is not the case for Quick Sort.
- O(log(N)) : This represents logarithmic time complexity, which does not apply to sorting an array.
- O(N log(N*N)) : This is not a standard time complexity notation for sorting algorithms.
- none : This is incorrect because the average time complexity of Quick Sort is well-known to be O(N log(N)).
Shadow paging in recovery eliminates the need for:
Which of the following is a type of database index?
In relational algebra, the operation that combines tuples from two relations using common attribute values is:
What is the maximum number of processes that can be in the Ready state?
A transaction that reads a value then later sees a different value because another transaction updated and committed in between experiences which anomaly?
MVCC (Multi-Version Concurrency Control) ensures:
Which of the following is true about ACID properties in DBMS?
Which normal form removes partial dependency?
Which of the following is not part of the process control block (PCB)?
In an E-R Diagram, entities are typically represented by:
