Nursing homework help. Final Exam IT 507
Multiple Choices
17 questions, 3 points each
- The SQL command that allows a user to insert rows into a table is .
- INSERT SELECT
- COMMIT d. UPDATE
- The SQL command that allows a user to permanently save data changes is .
- INSERT SELECT
- COMMIT d. UPDATE
- The SQL command that allows a user to list the contents of a table is .
- INSERT SELECT
- COMMIT d. UPDATE
- To list all the contents of the PRODUCT table, a user would use .
- LIST * FROM PRODUCT SELECT * FROM PRODUCT
- DISPLAY * FROM PRODUCT d. SELECT ALL FROM PRODUCT
- The SQL command that modifies an attribute’s values in one or more table’s rows is _____.
- INSERT SELECT
- COMMIT d. UPDATE
- The command is used to restore the database to its previous condition.
- COMMIT; RESTORE; COMMIT; BACKUP;
- COMMIT; ROLLBACK; d. ROLLBACK;
- The special operator is used to check whether an attribute value is null.
- BETWEEN IS NULL
- LIKE d. NOT NULL
- The SQL aggregate function that gives the arithmetic mean for a specific column is .
- COUNT AVG
- MAX d. SUM
- The process of creating an information system is known as .
- systems development database development
- network development d. enterprise development
- The traditional Systems Development Life Cycle (SDLC) is divided into phases.
- two three
- four d. five
11.The initial assessment and the feasibility study are part of the Systems Development Life Cycle’s
(SDLC’s) ………….. phase.
- Planning analysis c. detailed systems design d. implementation
- During what phase of System Development Life Cycle you will ask the following question?
“What are the requirements of the current system’s end users?” B
- planning analysis
- implementation d. maintenance
- The logical systems design is created during the phase of the Systems Development Life
Cycle (SDLC).
- planning analysis
- implementation d. maintenance
- The design of the system’s processes is completed during the phase of the Systems
Development Life Cycle (SDLC).
- planning analysis
- detailed systems design d. implementation
- Analyzing the company situation is part of the phase of the Database Life Cycle (DBLC).
- database initial study
- database design
- testing, and evaluation
- operation
- The last step in the Database Life Cycle (DBLC) is .
- maintenance and evolution operation
- testing and evaluation d. implementation and loading
- Once the data has been loaded into the database, the tests and fine-tunes the database for
performance, integrity, concurrent access, and security constraints.
- programmer b. manager
- database administrator d. systems administrator
Short Essay
10 points each (50 points)
- List and describe the levels of database backup.
- List and describe Logical design and Physical design steps.
- List and describe security goals for database.
- What is a trigger? Explain and provide an application example. What is/are views in a database? Explain and provide an application example.
- List and describe the DBA’s managerial role.