Which of the Following Is NOT a True Statement Regarding

question 142

Multiple Choice

Which of the following is NOT a true statement regarding a relation?

• A) Each relation consists of a set of named columns and an arbitrary number of unnamed rows.
• B) Each column in a relation corresponds to an attribute of that relation.
• C) An entry at the intersection of each row and column has a single value.
• D) Each row in a relation corresponds to an attribute of that relation.
• E) The rows may be interchanged or stored in any sequence.

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Definitions:

Rung Conditions

In ladder logic programming, these refer to the criteria or states that must be met for the logic within a rung of a ladder diagram to be executed.

Time Increment

A specified increase in time, used in scheduling, simulations, or time-based calculations.

Milliseconds

A unit of time equal to one-thousandth of a second, commonly used to measure durations that require high precision, such as response times in computers.

True To False Transition

refers to the change of a digital signal or condition from a true (high, active) state to a false (low, inactive) state.