O False QUESTION 19 It is better to have transactions with a short duration True O False QUESTION 20 The locking mechanism is very important in a DBMS environment to ensure ite consistency False QUESTION 8 The DBA should check that there is sufficient free disk storage before installing True False QUESTION 9 Explain why the transaction should issue a COMMIT, once it has been accomplished? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BI U S Paragraph Arial v 14px Click Save and Submit to save and submit. Click Save All Answers to save all answers. W QUESTION 15 DB2 belongs to the Tier-1 DBMS vendors O True O False QUESTION 16 We should consider the license cost of required supporting software when calculating the total cost of ownership for a new DBMS O True O False QUESTION 17 The very conservative organization are often willing to consider new DBMS O True False QUESTION 12 There is no direct relation between the supporting architecture for the DBMS environment and the success of the database applications O True O False 0.75 p QUESTION 13 SQL server as a DBMS product has two different platforms for windows and unix O True 0.75 poir O False QUESTION 14 When purchasing a DBMS, we have the choice to purchase the related installation manual or no O True 0.75 points O False Click Save and Submit to save and submit. Click Save All Ansurers to save all answers. SaveAAN