Which one of the following statements is true about primary keys?
(A) A column of names is usually a good choice for use as a primary key.
(B) Only a single record can be used as a primary key.
(C) Social Security numbers are never used as a primary key.
(D) A primary key is used to uniquely identify records in a table.
(D) A primary key is used to uniquely identify records in a table.
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Which of the following best describes a warm site?
A) A backup facility that has power and HVAC but no equipment B) A self-contained unit that has hardware, software, and peripherals C) A fully operational location that is ready for immediate move in and contains all data D) An operational location that contains all equipment but data must be restored
_________________________ are resolution-dependent bitmap images that are created with the painting or selection tools.
Fill in the blank(s) with the appropriate word(s).