What type of database software integrity service guarantees that tuples are uniquely identified by primary key values?

Which of the following best describes the role of the Java Virtual Machine in the execution of Java applets?

Which of the following is the best description of a component-based system development method?

There are many types of viruses that hackers can use to damage systems. Which of the following is not a correct description of a polymorphic virus?

Fred has been told he needs to test a component of the new content management application under development to validate its data structure, logic, and boundary conditions. What type of testing should he carry out?

Which of the following correctly best describes an object-oriented database?

Robert has been asked to increase the overall efficiency of the sales database by implementing a procedure that structures data to minimize duplication and inconsistencies. What procedure is this?

Lisa has learned that most databases implement concurrency controls. What is concurrency, and why must it be controlled?

Database software should meet the requirements of what is known as the ACID test. Why should database software carry out atomic transactions, which is one requirement of the ACID test, when OLTP is used?

Data marts, databases, and data warehouses have distinct characteristics. Which of the following does not correctly describe a data warehouse?