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What is an algorithm?

• A set of instructions to solve a problem.

• A data structure used to store data.

• A programming language syntax.

• A random set of commands.

Which of the following is NOT a property of a good algorithm?

• Precision

• Ambiguity

• Completeness

• Simplicity

What does the `len()` function in Python return?

• The length of the code.

• The total number of characters in a string.

• The number of elements in a list, string, or tuple.

• The number of loops in a program.

In Python, which data type is mutable?

• Strings

• Tuples

• Integers

• Lists

What will be the output of the following code? ```python x = [1, 2, 3] y = x y.append(4) print(x) ```

• [1, 2, 3]

• [1, 2, 3, 4]

• [1, 2, 3] and an error

• An error occurs

Which Python statement will correctly loop through a list?

• `for x in range(list):`

• `for x in list:`

• `while x in list:`

• `for x in list.length:`

What does the following function do? ```python def mystery(a, b): return a + b if a > b else b - a ```

• Adds a and b when a > b; subtracts otherwise.

• Always adds a and b.

• Always subtracts b from a.

• Compares and returns the larger value.

In Python, how do you define a function?

• `func function_name():`

• `def function_name():`

• `function function_name():`

• `method function_name():`

What will be the output of the following code? ```python list1 = [1, 2, 3, 4] list2 = list1[:] list2.append(5) print(list1) ```

• [1, 2, 3, 4]

• [1, 2, 3, 4, 5]

• An error

• [5]

Which statement is true about classes in Python?

• Classes cannot have methods.

• Classes can only have one object.

• Classes can contain both attributes and methods.

• Classes are not supported in Python.