Q96.
Section
b
7-1 Basic theory
Answer
A truth table is a table indicating logical combinations. One is true and zero (0) is false. b) indicates the logical product, and is expressed in a Venn diagram as follows:
Passenger
vehicle
Mini-car
a): The truth table indicates the logical sum, and is expressed in a Venn diagram as follows:
Passenger
vehicle
Mini-car
c): The truth table indicates the exclusive logical sum. For the exclusive logical sum, if one
value is 1 (truth) and the other value is 0 (false), it indicates 1 (truth), but if both values are
the same, it indicates 0 (false). This is expressed in a Venn diagram as follows:
Passenger
vehicle
Mini-car
d): The truth table indicates the negative logical sum. For the negative logical sum, if either
value is 1 (truth), it indicates 0 (false), but if both values are 0 (false), it indicates 1 (truth).
This is expressed in a Venn diagram as follows:
Passenger
vehicle
Q97.
c
Mini-car
Section
5-1 Project management
Answer
The interdependency of the work is determined using the arrow diagram.
a): Data conversion (D2) cannot be started until data extraction (D1) is completed.
b): Customization of application software (S3) cannot be started until installation of application software (S2) is completed.
d): Installation of application software (S2) is performed after building of the hardware environment (H2) is completed.
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