Q. If the tryparse method determines that the string cannot be converted to the data type, it assigns __________ to the variable.

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Q. To covert a number from one data type to another, you use the __________

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Q. A variable’s ____________ indicates where the variable can be used in an application code.

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Q. A variable’s _______________ indicates how long the variable stays in the computer’s internal memory.

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Q. Variables declared in a form’s declaration section have _____________ scope.

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Q. Variable declared in a procedure have ______________ scope.

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Q. Variables declared in a block have _____________ scope.

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Q. When you declare a variable in the form’s declaration section, it is called as ______________

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Q. Lifetime of a class-level variable is till ________________

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Q. A class-level variable is declared using ______________ keyword.

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Q. A procedure-level variable is declared using ____________ keyword.

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Q. Two procedures can have procedure-level variable whose names are same.

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Q. __________ is a variable that remains in memory, and retains its value even after the procedure declaring it ends.

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Q. Static variable can only be used in the __________ in which it is declared.

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Q. A __________ cannot change its value while the application is running.

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Q. Named constants are used because __________

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Q. What is wrong with the expression “const dblPi As Double = 3.141593”?

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Q. What is wrong with the expression “static dblPi AsDouble ”?

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Q. Using a named constant is advantageous because to change a value in future, change __________

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Q. Unintentional errors in application by declaring variables can be reduced by __________

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