In a university database, the student table, with student ID as a primary key, is linked to the university department table through its primary key-department ID. In the student table, department ID is a ________.
A) foreign key
B) primary key
C) complex key
D) functional key
Question 2
The information and communications technology (ICT) component is at the very heart of the company's competitive advantage. Which of the following statements is the most accurate justification of this claim?
A) Companies benefit from the cost savings made possible through information systems.
B) Cost of implementing technology has increased over a period of time.
C) Most businesses are involved in the sale of technical or technological services.
D) Established players in a market favor creative destruction over sustaining technologies.
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