Make sure your workspace and you are visible at all times. Y…

Make sure your workspace and you are visible at all times. Your phone should remain face down for the duration of the exam. When you have finished the exam, use your phone to scan your exam into Gradescope.Note the following:failure to mark the pages in Gradescope to correspond to your questions may result in a deduction of points from the exam overall.failure to maintain the proper workspace environment may result in a grade of zero for the exam.Using the exam:you can zoom the document by pressing the plus button to zoom in or the minus to zoom outyou can also zoom in on the entire browser window: use “pinch and zoom” if you have a trackpad. If using a mouse, hold “ctrl” and use the scroll wheel on the mouse.

A company notices that its database queries are running slow…

A company notices that its database queries are running slowly even though no schema changes were made. Upon investigation, it turns out that the data files are intact, but the indices became corrupted, and the system takes longer to locate records. Which database system component is most responsible for handling and optimizing these operations?