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| Section | Weight | Objectives |
|---|---|---|
| Variables, Data Types, and Basic Operations | 20% | - Variables and assignment - Data types: integers, floats, strings, booleans - Arithmetic operations and type conversion |
| Functions and Modular Programming | 20% | - Parameters, arguments, and return values - Variable scope and code reuse - Defining and calling functions |
| Loops and Iteration | 20% | - Break, continue, and pass statements - Iterating over sequences - For loops and while loops |
| Data Structures and Input/Output | 20% | - Lists, tuples, dictionaries, sets - Basic file handling - User input and output operations |
| Control Flow and Decision Making | 20% | - If, elif, else statements - Conditional expressions - Comparisons and logical operators |
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NEW QUESTION # 59
Fix the logic error in this function that should return the larger of two numbers.
def find_maximum(a, b):
if a < b:
return a
else:
return b
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function should return the larger number.
Step 2: The condition a < b means b is larger than a.
Step 3: In the original code, when a < b is true, it incorrectly returns a.
Step 4: The return values need to be corrected.
Correct code:
def find_maximum(a, b):
if a < b:
return b
else:
return a
Alternative correct code:
def find_maximum(a, b):
if a > b:
return a
else:
return b
Example:
print(find_maximum(10, 20))
print(find_maximum(30, 15))
Output:
20
30
NEW QUESTION # 60
Which Python data structure cannot be modified after creation?
Answer: D
Explanation:
Atupleis immutable, which means it cannot be changed after it is created.
Example:
coordinates = (10, 20)
After this tuple is created, its elements cannot be modified directly. Python's data model documentation explains that tuples are immutable, while lists and dictionaries are mutable.
Therefore, the correct answer isC. Tuple.
NEW QUESTION # 61
Fix the off-by-one error in this function that should return the first 3 characters of a string.
def first_three(text):
return text[0:2]
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: Python string slicing uses this format:
text[start:stop]
Step 2: The start index is included.
Step 3: The stop index is excluded.
Step 4: To return the first 3 characters, start at index 0 and stop at index 3.
Correct code:
def first_three(text):
return text[0:3]
Simplified correct code:
def first_three(text):
return text[:3]
Example:
print(first_three( " Python " ))
Output:
Pyt
NEW QUESTION # 62
Which index position is returned when the string method .find( ' python ' ) is applied to the string ' learning python programming ' ?
Answer: C
Explanation:
The .find() method returns the lowest index where the searched substring is found.
Example:
" learning python programming " .find( " python " )
Output:
9
Indexing starts at 0 in Python. In the string ' learning python programming ' , the word ' python ' begins at index 9. Python's built-in types documentation describes str.find() as returning the lowest index where the substring is found.
Therefore, the correct answer isB. 9.
NEW QUESTION # 63
What distinguishes a terminal-based Python environment from other development environments?
Answer: C
Explanation:
A terminal-based Python environment uses atext-based command line interface. In this environment, the user types commands directly into a terminal or command prompt.
For example, a user may start Python by typing:
python
When Python is started from a terminal, the interpreter can run in interactive mode, where it displays prompts such as > > > and waits for the user to enter Python commands. The official Python documentation explains that when commands are read from a terminal, the interpreter is in interactive mode.
A terminal-based environment is not mainly identified by graphical user interface elements, internet connectivity, or automatic file saving.
Therefore, the correct answer isC. Text-based command line interface.
NEW QUESTION # 64
......
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