What is low balling? What are some reasons that often make time estimates overly optimistic?
Answer to relevant QuestionsDistinguish between primary and secondary sort keys.What is normalization? Distinguish between first, second, and third normal forms.For each of the following applications, specify a file organization method (sequential, direct access, indexed sequential). Briefly justify your selection in terms of the anticipated activity ratio, processing time frame, ...Consider the two- record hierarchyDEPARTMENT (DEPT#, DEPT- NAME, PROFESSOR)PROFESSOR (PROF#, PROF- NAME,) in which professors are linked to their department by the field PROFESSOR in the DEPARTMENT record. Does this relation ...Consider the following relation: CLASS- LIST (STUDENT#, CLASS#, STUDENT- NAME, STUDENT- MAJOR, CLASS- TIME, and CLASSROOM)Requireda. Suppose that we wish to add a new class time and room (i. e., a new section) for a ...
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