p;patient is discharded from the hospital, how many occurrences
of the TREATMENT records will be stored in the TREATMENT database file on the
average? (2 Points)
A) 6,000 B) 4,800 C) 18,000 D)1,600
(76)Which of the following conditions will make a relation that is in first normal form
to be in second normal form?
Ⅰ.every non-key attribute is functionally dependent on the full set of primary key
attributes.
Ⅱ.no non-key attributes exist in the relation.
Ⅲ.the primary key consists of only one attribute.
A) Ⅰ only B) Ⅰand Ⅱ only C) Ⅰand Ⅲ only D) any of them
(77)The most commonly used locking level in implementing concurrency control is at which
of the following levels?
A) database B) table C) record D)field
(78)Which function is NOT served by building a prototype?
A) It takes the place of the final system.
B) It assists in gathering software requirements
C) It assists in estimating the cost of the project.
D) It is used as the foundation of the larger projects.
(79)Software document is an important part of software and a basis of software development
phase.It also influnces software’s (2 Points)
A) Reusability B) Maintanence
C) Expansibility D) Portability
(80) Which phase of the software development requires the most development time?
A) the design phase B) the testing phase
C) the maintenance phase D) the development phase
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