IT2009 Names, Bindings, and Scopes Quiz
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Questions and Answers

Match the following concepts with their definitions:

Referencing Environment = Collection of all variables visible in a statement Named Constant = Variable bound to a value only once, value cannot be changed Initialization = Binding of a variable to a value at the time it is bound to storage Aliasing in Variables = Multiple variables referring to the same memory location

Match the following programming terms with their descriptions:

Keywords vs. Reserved Words = Words with special meaning vs. words reserved by the language Variables Attributes = Properties associated with variables like scope or lifetime Variable Types and Values = Different data types a variable can hold and their corresponding values Binding in Programming = Association of an entity (variable) with properties like type and value

Match the following authors with their book titles:

Robert W. Sebesta = Concepts of Programming Languages Mordechai Ben-Ari = Understanding Programming Languages Allan B. Tucker and Robert E. Noonan = Programming Languages: Principles and Paradigms No match needed = Mc-Graw Hill 04 Handout 1

Static variables are bound to different memory cells after program execution terminates.

<p>False</p> Signup and view all the answers

Stack-dynamic variables have their storage bindings created after their declaration statements are elaborated.

<p>True</p> Signup and view all the answers

Explicit heap-dynamic variables are allocated and deallocated by implicit run time instructions.

<p>False</p> Signup and view all the answers

Implicit heap-dynamic variables are bound to heap storage only when they are assigned values.

<p>True</p> Signup and view all the answers

Static scoping is also known as dynamic scoping.

<p>False</p> Signup and view all the answers

Dynamic scoping is based on spatial relationship of subprograms.

<p>False</p> Signup and view all the answers

The scope of a variable refers to a range of statements in which the variable is invisible.

<p>False</p> Signup and view all the answers

Elaboration of a declaration refers to the storage allocation and binding process.

<p>True</p> Signup and view all the answers

Alias variables have different names but refer to the same memory location.

<p>True</p> Signup and view all the answers

Variables with static lifetimes are bound to random memory cells during program execution.

<p>False</p> Signup and view all the answers

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