Extensively using nested loops can significantly degrade performance. Each additional level of nesting increases the number of iterations exponentially, which can lead to slower code execution and increased resource usage. It's essential to carefully consider the need for nested loops in your code.

The action of executing a function within a program is called "Invocation." When you invoke a function, you are instructing the program to execute the code inside that function. The other options have different meanings: Prototype is a declaration of the function's signature, Declaration is a statement that tells the compiler about a function's name and signature, and Definition is the specification of a function's behavior.

Chris should revisit the PEMDAS principle, which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). It helps clarify the order of operations in complex mathematical expressions.

The ternary conditional operator (a ? b : c) in C++ is right-to-left associative. This means that it evaluates from right to left, making it different from most other operators in the language.

For Lisa's scenario, the most appropriate control structure is the "Switch Statement." A switch statement allows you to evaluate a single expression against multiple possible constant values, making it ideal for executing different code blocks based on the day of the week.

A common mistake that leads to infinite loops is forgetting to update the 'Counter' variable. In loops, the counter variable is crucial for controlling the loop's progress and termination.

In nested loops, a break statement is used to exit the innermost loop. When it's executed, control exits the inner loop, not the outer one. Therefore, the correct option is 'Inner.'

The 'if' statement in C++ is used to make a single conditional decision. It allows you to execute a block of code only if a specified condition is true. This is fundamental for controlling the flow of your program based on conditions.

The 'if-else' statement in C++ is used when you have multiple conditions to test sequentially. It allows you to define different blocks of code to execute for different conditions, providing a structured way to handle multiple possibilities.

Yes, for both. In C++, you can use default arguments for both member methods of a class and standalone (non-member) functions. Default arguments provide flexibility when calling functions or methods by allowing you to omit some arguments if they have defaults defined.