Chapter 10 - Programming language translators

What is the role of an assembler in programming language translation?

• An assembler translates assembly code into machine code or intermediate bytecode.

• An assembler translates high-level code into assembly language.

• An assembler translates machine code into high-level language.

• An assembler translates pseudo code into flowcharts.

Before an assembly code program can be executed, it must be translated into the equivalent machine code, or an intermediate form called ________.

• bytecode

• source code

• hexadecimal code

• object-oriented code

Which of the following is an example of a semantic error?

• Using the wrong variable name in a calculation

• Misspelling a keyword

• Forgetting a semicolon

• Incorrectly nesting loops

What type of error is indicated by the interpreter in the screenshot?

• SyntaxError: invalid syntax

• TypeError: unsupported operand type(s)

• NameError: name 'x' is not defined

• IndentationError: unexpected indent

Which of the following best describes how a library is invoked by a program?

• By calling its functions or routines in the code

• By copying its code into the program manually

• By renaming the library file

• By deleting the library after use

What are the three main stages shown in the diagram?

• Input (Source code), Process (Compile), Output (Object code)

• Input (Object code), Process (Compile), Output (Source code)

• Input (Source code), Process (Execute), Output (Object code)

• Input (Source code), Process (Debug), Output (Object code)

According to the symbol table, what is the run-time address or value of 'pi'?

• 3.14159

• 0x7ffeefbff5c8

• 42

• NULL

When a syntax error is present in a program, such as a missing closing bracket, what does the interpreter do before executing any code?

• The interpreter scans through the whole program checking for certain types of error before executing any of it.

• The interpreter ignores the error and continues execution.

• The interpreter automatically corrects the error and runs the program.

• The interpreter executes only the lines before the error and skips the rest.

Which of the following best describes the function of the lexical analyser in the compilation process?

• It links different program modules together.

• It converts the source code into tokens and removes comments and unnecessary spaces.

• It generates the final machine code for execution.

• It executes the program line by line.

Which stage of the compilation process is responsible for checking the grammatical structure of the source code?

• Linking

• Code generation

• Lexical analysis

• Syntax analysis