Programming Languages and Compilers

JavaScript is an object-based language, meaning it uses objects as its fundamental building blocks but doesn't have classical inheritance. Unlike purely objective languages like C++, it uses prototype-based inheritance. It's not subjective or evil in any technical sense.

Single-line comments in JavaScript start with two forward slashes (//). Option B describes the end of a multi-line comment (/), option C is just multiplication, and option D is the start of a multi-line comment (/), which can span multiple lines but isn't used for single lines.

ITERATE is a REXX command that skips the remaining instructions in the current DO loop iteration and immediately proceeds to the next iteration. DO UNTIL and DO WHILE are loop control structures that determine when the loop exits, not what skips within an iteration. Option D is clearly invalid.

In REXX, compound variables (stacks) use stem notation where STEM.0 automatically contains the element count. Reading and counting manually is inefficient, STACK.MAX doesn't exist, and MAX is for numeric comparisons.

REXX is typeless and dynamically typed - variables need no declaration and automatically handle alphanumeric values. DEFINE and DECLARE aren't REXX keywords for variable declaration.

ASP.NET applications require a web server, such as IIS (Internet Information Services), to process requests and host the application, making the statement that they run without a web server false.

Java eliminated C-style direct pointer manipulation and pointer arithmetic to improve memory safety and security, relying instead on managed object references and automatic garbage collection.

APL used a special character set with symbols that couldn't be typed on standard keyboards, requiring specialized input equipment. This made it impractical as keyboards standardized. Option B is wrong (APL predates Mac OS), C is wrong (APL handled strings), and D is a joke.

Python uses line breaks instead of semicolons to terminate statements. Java and C++ require semicolons. Since Python doesn't require them, 'All of the above' is correct - not all languages need semicolons.

Functional programming emphasizes pure functions with no side effects - they don't modify state (option C is false, thus 'NOT a characteristic'). Options A (higher-order functions), B (mathematical style), and D (recursion) are all true characteristics.

SQL is a query language for databases, not a general-purpose programming language - it lacks features like loops, conditionals, and general computation. PostScript, AppleScript, and Tcl are all Turing-complete programming languages.

NetBeans is a comprehensive IDE for Java development, similar to how Visual Studio serves C# developers. It provides code editing, debugging, and project management features. Subversion is version control, Apache Ant is a build tool, and Spring is a framework - none are full IDEs.

ActionScript is a dialect of ECMAScript, the standardized scripting language specification. JavaScript is the most well-known ECMAScript implementation, but ActionScript (used in Adobe Flash) was also built on the ECMAScript standard. The other options are not ECMAScript dialects: AppleScript is Apple's native scripting language, PostScript is a page description language, and VBScript is Microsoft's Visual Basic scripting language.

The DATA step uses _null_ which does not create a dataset. When proc print; runs, it attempts to print the most recently created dataset. Since no dataset was created, it results in an error.