Scoping

Question 1

of a variable is a range of statements in which the variable is visible.

Answer 1

scope

Question 2

A variable is visible in a statement if it can be … in that statement

Answer 2

referenced

Question 3

What are the two scoping rules for name? 1

Answer 3

1. Static scoping (Lexical scoping)
2. Dynamic scoping

Question 4

is the method of binding names to nonlocal variables

Answer 4

Static scoping

Question 5

is based on the calling sequence of subprograms, not on their spatial relationship to each other. Thus, the scope can be determine only at run time

Answer 5

Dynamic scoping

Question 6

of statement is the collection of all variables that are visible in the statement

Answer 6

referencing environment

Question 7

is a variable that is bound to a value only once; its value cannot be changed by an assignment or by an input statement

Answer 7

name constant

Question 8

is the binding of a variable to a value at the time it is bound to a storage

Answer 8

Initialization