A Relation Is in Second Normal Form (2NF)if and Only

question 64

Multiple Choice

A relation is in second normal form (2NF) if and only if it is in 1NF and ________.

• A)all non-key attributes are determined by the entire primary key
• B)there are no non-key attributes determined by another non-key attribute
• C)every attribute is a candidate key
• D)every candidate key is a determinant
• E)every determinant is a candidate key

Define and calculate slack time within a project schedule.

Describe the purpose and mechanics of the Program Evaluation and Review Technique (PERT) including expected completion times and variance calculations.

Distinguish between the Critical Path Method (CPM) and PERT, including their purposes and methods of calculation.

Understand the construction and analysis of network diagrams, including the calculation of earliest and latest start times, and total project duration.

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Definitions:

Market System

An economic system where decisions regarding investment, production, and distribution are based on supply and demand, with prices serving as signals to participants.

Circular Flow Diagram

An illustration showing the flow of resources from households to firms and of products from firms to households. These flows are accompanied by reverse flows of money from firms to households and from households to firms.

Revenue

Revenue is the total amount of money received by a company for goods sold or services provided during a certain period of time, before any expenses are deducted.

Expenditures

The total amount of money spent by a household or country on consumption and services.