1. In Database Life Cycle (DBLC), the phase after the database initial study is a. operation b. database design c. database initial study d. implementation 2. The last step in the Database Life Cycle (DBLC) is a. maintenance and evolution c. testing and evaluation b. operation d. implementation and loading 3The SQL command that can complete a transaction is a. INSERT b. SELECT c. COMMIT d. ROLLBACK is the process of determining the data storage organization and data access a. Conceptual design b. DBMS selection 4. characteristics of the database to ensure its integrity, security, and performance. c. Logical design d. Physical design 5. The SQL command that can undo a transaction is a. INSERT c. COMMIT b. SELECT d. . ROLLBACK 6. One of the three most common data integrity and consistency problem without proper concurrency control is a. lost updates b. disk failures c. user errors d. deadlocks 7. Which of the following queries will display the table PRODUCT's contents when the value of V CODE is not equal to 21344? a. SELECT P DESCRIPT, P INDATE, P_PRICE, V_CODE b. SELECT P DESCRIPT, P INDATE, P_PRICE, V CODE c. SELECT P DESCRIPT, P INDATE, P PRICE,V CODE d. SELECT P DESCRIPT, P INDATE, P_ PRICE, V.CODE FROM PRODUCT WHERE V_CODE21344; FROM PRODUCT WHERE V_CODE21344; FROM PRODUCT WHERE V CODE-21344; FROM PRODUCT WHERE V CODE=> 21344