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Learning/Knowledge checks/Week 6/Day 29/Check

Module checkpoint

Day 29 · Advanced Constraints knowledge check

Answer every question from your current understanding. After submission, compare your reasoning with the explanation and revisit any weak concept.

6 QuestionsOne Answer eachImmediate ScoreDetailed Explanations

Read→Reason→Select→Review

Question 1 of 6What does a dist constraint control?

Which values become legal despite other constraintsThe order in which the solver picks variablesRelative weights of legal values or ranges

Question 2 of 6What is the purpose of solve a before b?

It makes an otherwise unsatisfiable set solvableIt sets solver order, which can shape distributionsIt assigns a before simulation without any solving

Question 3 of 6Why use a soft constraint?

To set a default that a conflicting constraint can overrideTo mark a variable as random only when tests enable itTo make a hard constraint apply only on the first call

Question 4 of 6What does constraint_mode(0) do for a constraint block?

Turns that block off for later randomize() callsDeletes that constraint block from the class definitionForces every rand variable to keep its value of zero

Question 5 of 6What does rand_mode(0) do for a random property?

Disables every constraint that mentions the propertyExcludes it from randomization; it keeps its valueResets the property to zero before each randomize call

Question 6 of 6What is the best first response to an unexpected randomization failure?

Rerun with new seeds until one randomization passesIgnore it and keep the object's previous field valuesCheck the result and isolate conflicting constraints

Review every selection before submitting. You can retry after reading the explanations.

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