User john updates some rows and asks user damir to log in and check the changes before he commits them. which of the following statements is true?
a. damir can see the changes but cannot alter them because john will have locked the rows.
b. damir will not be able to see the changes.
c. john must commit the changes, so that damir can see them and if necessary roll them back.
d. none of the above

1. before plugging in a new device to a computer you should unplug all other devices turn off the computer turn on the computer 2. many of the maintenance tools for a computer can be found in the control panel under administrative tools display personalization

Write a grading program for a class with the following grading policies: a. there are two quizzes, each graded on the basis of 10 points. b. there is one midterm exam and one final exam, each graded on the basis of 100 points. c. the final exam counts for 50% of the grade, the midterm counts for 25%, and the two quizzes together count for a total of 25%. (do not forget to normalize the quiz scores. they should be converted to a percentage before they are averaged in.) any grade of 90 or more is an a, any grade of 80 or more (but less than 90) is a b, any grade of 70 or more (but less than 80) is a c, any grade of 60 or more (but less than 70) is a d, and any grade below 60 is an f. the program will read in the student’s scores and output the student’s record, which consists of two quiz and two exam scores as well as the student’s average numeric score for the entire course and final letter grade. define and use a structure for the student reco

With editing, word automatically displays a paste options button near the pasted or moved text. a. cut-and-paste b. drag-and-drop c. inline d. copy-and-carry