Which of the following statements best describes object capability?
A) Mandatory access controls embedded in object and subject properties
B) Used to determine access based on a combination of specific criteria
C) Used programmatically and based on a combination of an unforgettable reference and an operational message
D) The process of assigning authenticated subjects permission to carry out a specific task
C) Used programmatically and based on a combination of an unforgettable reference and an operational message
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Which of the following SQL statements deletes an object?
A. ALTER B. REMOVE C. DROP D. DEL
(Quicksort) You have previously seen the sorting techniques of the bucket sort and selection sort. We now present the recursive sorting technique called Quicksort. The basic algorithm for a single-subscripted array of values is as follows:
a) Partitioning Step: Take the first element of the unsorted array and determine its final location in the sorted array (i.e., all values to the left of the element in the array are less than the element, and all values to the right of the element in the array are greater than the element). We now have one element in its proper location and two unsorted subarrays. b) Recursive Step: Perform Step 1 on each unsorted subarray. Each time Step 1 is performed on a subarray, another element is placed in its final location of the sorted array, and two unsorted subarrays are created. When a subarray consists of one element, that subarray must be sorted; therefore, that element is in its final location. The basic algorithm seems simple enough, but how do we determine the final position of the first element of each subarray? As an example, consider the following set of values (the element in bold is the partitioning element—it will be placed in its final location in the sorted array): 37 2 6 4 89 8 10 12 68 45 a) Starting from the rightmost element of the array, compare each element with 37 until an element less than 37 is found. Then swap 37 and that element. The first element less than 37 is 12, so 37 and 12 are swapped. The values now reside in the array as follows: 12 2 6 4 89 8 10 37 68 45 Element 12 is in italics to indicate that it was just swapped with 37. b) Starting from the left of the array, but beginning with the element after 12, compare each element with 37 until an element greater than 37 is found. Then swap 37 and that element. The first element greater than 37 is 89, so 37 and 89 are swapped. The values now reside in the array as follows: 12 2 6 4 37 8 10 89 68 45 c) Starting from the right, but beginning with the element before 89, compare each element with 37 until an element less than 37 is found. Then swap 37 and that element. The first element less than 37 is 10, so 37 and 10 are swapped. The values now reside in the array as follows: 12 2 6 4 10 8 37 89 68 45 d) Starting from the left, but beginning with the element after 10, compare each element with 37 until an element greater than 37 is found. Then swap 37 and that element. There are no more elements greater than 37, so when we compare 37 with itself, we know that 37 has been placed in its final location of the sorted array. Once the partition has been applied to the array, there are two unsorted subarrays. The subarray with values less than 37 contains 12, 2, 6, 4, 10 and 8. The subarray with values greater than 37 contains 89, 68 and 45. The sort continues with both subarrays being partitioned in the same manner as the original array. Based on the preceding discussion, write recursive function quickSort to sort a single-sub- scripted integer array. The function should receive as arguments an integer array, a starting sub-script and an ending subscript. Function partition should be called by quickSort to perform the partitioning step.
Match the following results with the proper comparison operators:
I. Does not equal 5000 II. Is less than 5000 III. Is less than or equal to 5000 IV. Is greater than 5000 V. Is greater than or equal to 5000 A. <5000 B. <=5000 C. >=5000 D. >5000 E. <>5000
The AutoFill method of copying the underlying value of a cell can be used on cells containing the function IF
Indicate whether the statement is true or false.