Your company must choose which type of database to use for a new project. Which of the
following lists three characteristics of file-based database systems?
The exhibit shows a table called Housing Relation. This table relates a unique student
identification number with a dormitory building and a room fee for that building. The key for the
Housing Relation is Student_ID. If each building charges only one fee and a student can live in
only one building, then this table is in which normal form?

What is the highest normal form of the relation(s) shown in the exhibit?

Consider the Information Engineering diagram shown in the exhibit. Building_ID, R_ID,
Room_Count and Room_Num are integer numbers, whereas Bldg_Name, Location and
Res_Name are all represented by variable-length strings with a maximum of 20 characters. Which
SQL statement best implements the RESIDENT relation shown in this diagram?

Which statement accurately describes a characteristic of attributes?
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