Database Questions

• Parenthesis is never required in Postfix or Prefix expressions
• Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity?
• To eliminate definition duplication, XML Schemas define:
• When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?
• The HAVING clause does which of the following?
• When three or more AND and OR conditions are combined, it is easier to use the SQL keyword(s):
• If a table has been normalized so that all determinants are candidate keys, then that table is in:
• When assessing the table structure of an acquired set of tables with data, accessing the validity of possible referential integrity constraints on foreign keys is (part of) the:
• Legacy data is which of the following?
• The command to eliminate a table from a database is
• Which of the following describes a relational database?
• An entity is a thing in the real world with an independent existence.
• In the relational model, relationships between relations or tables are created by using:
• A transaction for which all committed changes are permanent is called:
• A benefit of the three-tier architecture is which of the following?
• The load and index is which of the following?
• To remove duplicate rows from the results of an SQL SELECT statement, the ________ qualifier specified must be included.
• The ODBC Level 1 API contains which of the following functions?
• Cloud computing uses Server virtualization.
• Cloud computing is not suited for situations