Authentication methods are the only way to verify identity on a computer or network.
Answer the following statement true (T) or false (F)
False
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The Internet2 is much faster than the Internet because it has a fiber optic backbone instead of a mixture of telephone cables and fiber optics
Indicate whether the statement is true or false
The modal property setting of "Yes" can display the Minimize and maximize buttons
Indicate whether the statement is true or false
(Quicksort) The recursive sorting technique called quicksort uses the following basic algo- rithm for a one-dimensional vector of values:
a) Partitioning Step: Take the first element of the unsorted vector and determine its final location in the sorted vector (i.e., all values to the left of the element in the vector are less than the element’s value, and all values to the right of the element in the vector are greater than the element’s value—we show how to do this below). We now have one value in its proper location and two unsorted subvectors. b) Recursion Step: Perform the Partitioning Step on each unsorted subvector. Each time the Partitioning Step is performed on a subvector, another value is placed in its final location of the sorted vector, and two unsorted subvectors are created. When a subvector consists of one element, that element’s value is in its final location (because a one-element vector is already sorted). The basic algorithm seems simple enough, but how do we determine the final position of the first element value of each subvector? As an example, consider the following set of values (the value in bold is for the partitioning element—it will be placed in its final location in the sorted vector): 37 2 6 4 89 8 10 12 68 45 Starting from the rightmost element of the vector, compare each element value with 37 until an element value less than 37 is found; then swap 37 and that element’s value. The first element value less than 37 is 12, so 37 and 12 are swapped. The new vector is 12 2 6 4 89 8 10 37 68 45 Element value 12 is in italics to indicate that it was just swapped with 37. Starting from the left of the vector, but beginning with the element value after 12, compare each element value with 37 until an element value greater than 37 is found—then swap 37 and that element value. The first element value greater than 37 is 89, so 37 and 89 are swapped. The new vector is 12 2 6 4 37 8 10 89 68 45 Starting from the right, but beginning with the element value before 89, compare each element value with 37 until an element value less than 37 is found—then swap 37 and that element value. The first element value less than 37 is 10, so 37 and 10 are swapped. The new vector is 12 2 6 4 10 8 37 89 68 45 Starting from the left, but beginning with the element value after 10, compare each element value with 37 until an element value greater than 37 is found—then swap 37 and that element value. There are no more element values greater than 37, so when we compare 37 with itself, we know that 37 has been placed in its final location of the sorted vector. Every value to the left of 37 is smaller than it, and every value to the right of 37 is larger than it. Once the partition has been applied on the previous vector, there are two unsorted subvectors. The subvector with values less than 37 contains 12, 2, 6, 4, 10 and 8. The subvector with values greater than 37 contains 89, 68 and 45. The sort continues recursively, with both subvectors being partitioned in the same manner as the original vector. Based on the preceding discussion, write recursive function quickSortHelper to sort a one-dimensional integer vector. The function should receive as arguments a starting index and an ending index on the original vector being sorted.
A formula that refers to an empty cell as the divisor creates a(n) ________ error
A) #NUM! B) #DIV/0! C) #REF! D) #NULL!