When building her database, Diane wants to make sure that if users at a lower clearance level attempt to interact with an object at a higher classification level that he will not be told that the object is off limits because of clearance and classification issues. Which of the following best describes what Diane should implement?

If a database administrator wants to allow middle management members to see their departments’ profits and expenses but not show them the whole company’s profits,what can she implement?

To ensure that aggregation and inference attacks do not take place, which of the following should Linda not implement?

Linda has found out that two people who work for her who do not have the clearance level to know about certain military troop movement have learned about the activity and sold the information to enemy states. Which of the following best describes what type of issue is Linda dealing with?

In some cases, two transactions may, in the course of their processing, attempt to access the same portion of a database at the same time, in a way that prevents them from proceeding. Which of the following best describes this type of situation?

Which of the following best describes what transaction-processing system provides?

Which of the following best describes an operation that allows changes to adatabase to be available to all applications and users?

Josh has figured out that software glitches and power fluctuations that caused systems to go off line has resulted in incorrect data being saved into the company database. What does Josh need to make sure is configured so that this type of activity does not continue?

Database software performs three main types of integrity services: semantic,referential, and entity. Which of the following correctly describes one of these services?

i.A semantic integrity mechanism makes sure structural and semantic rules are enforced.
ii. A database has referential integrity if all foreign keys reference existing primary keys.
iii. Entity integrity guarantees that the tuples are uniquely identified by primary key values.

What needs to be put into place to ensure that two users cannot access and modify the same data within a databaase at the same time?