Computers and Technology, 24.12.2019 19:31 chessacs2950
Suppose that sales is a two-dimensional array of 10 rows and 7 columns wherein each component is of the type int , and sum and j are int variables. which of the following correctly finds the sum of the elements of the fifth row of sales? 1. sum = 0; for(j = 0; j < 10; j++)sum = sum + sales[5][j]; 2. sum = 0; for(j = 0; j < 7; j++)sum = sum + sales[4][j]; 3. sum = 0; for(j = 0; j < 10; j++)sum = sum + sales[4][j]; 4. sum = 0; for(j = 0; j < 7; j++)sum = sum + sales[5][j];
Answers: 3
Computers and Technology, 21.06.2019 22:00
Which of the following statements correctly identifies a problem with sanitization methods? a. methods are not available to remove data ensuring that unauthorized personnel cannot retrieve data.b. even fully incinerated media can offer extractable data.c. personnel can perform sanitization steps improperly.d. stored data is physically etched into the media.
Answers: 1
Computers and Technology, 23.06.2019 10:20
Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?
Answers: 1
Computers and Technology, 23.06.2019 22:50
What is an rss reader used for? for creating a user account on a social new site
Answers: 2
Computers and Technology, 24.06.2019 03:00
Using a conditional expression, write a statement that increments numusers if updatedirection is 1, otherwise decrements numusers. ex: if numusers is 8 and updatedirection is 1, numusers becomes 9; if updatedirection is 0, numusers becomes 7.
Answers: 1
Suppose that sales is a two-dimensional array of 10 rows and 7 columns wherein each component is of...
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