Using a log-based recovery scheme might improve performance as well as provide a recovery mechanism by a. writing the log records to disk when each transaction commits b. writing the appropriate log records to disk during the transaction’s execution c. waiting to write the log records until multiple transactions commit and writing them as a batch d. never writing the log records to disk

Each time you save a document, you will need to type in the file type in which it should be saved you can select the save button to save it with the same file name if it has been previously saved you will need to select the location to save the file you will need to use the save as dialog box

Dereck works for long hours on his computer.  he frequently experiences physical strain by the end of the day because he does not follow an important rule of ergonomics with respect to the use of keyboards.  which of the following actions of dereck could lead to physical strain? a.  placing the keyboard exactly in front of him while typingb.  keeping hands and wrists straight while typingc.  using wrist pads throughout the dayd.  pounding at the keys on the keyboard while typinge.  resting his hands on the keyboard when he is not typing

Why should the technician watch for signs of contamination in the oil when recovering refrigerant from a system