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| Section | Objectives |
|---|---|
| Topic 1: Object-Oriented Programming | - Inheritance - Constructors (__init__) - Attributes and Methods - Classes and Objects - Encapsulation |
| Topic 2: Data Structures | - Dictionaries - Sets - Lists and List Operations - String Manipulation - Tuples |
| Topic 3: Testing and Debugging | - Trace Errors - Unit Testing Concepts - Debugging Techniques |
| Topic 4: File Handling and Exceptions | - Reading and Writing Files - Exception Handling (try, except, finally) - Custom Exceptions |
| Topic 5: Python Fundamentals | - Input/Output Operations - Variables and Data Types - Type Conversion - Operators and Expressions |
| Topic 6: Functions | - Recursion - Return Values - Scope (local and global) - Parameters and Arguments - Function Definition and Call |
| Topic 7: Control Structures | - Loop Control (break, continue, pass) - Loops (for, while) - Conditional Statements (if, elif, else) - Nested Conditionals and Loops |
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NEW QUESTION # 23
A program needs to display only positive, non-zero numbers from a list containing a mixture of integer and decimal values. Which conditional statement should be placed inside the loop?
Answer: D
Explanation:
To display only positive, non-zero numbers, the condition should check whether each number is greater than 0.
Correct condition:
if number > 0:
Example:
numbers = [-2, 0, 1, 3.5, -4.2]
for number in numbers:
if number > 0:
print(number)
Output:
1
3.5
The condition number > 0 works for both integers and decimal values. The condition number > = 1 would incorrectly exclude positive decimal values such as 0.5.
Therefore, the correct answer isA. if number > 0:.
NEW QUESTION # 24
Complete the function add_item(numeric_list, new_number) that takes a list of numbers and a new number, and returns a new list that appends the new number to the end of the list.
For example, add_item([1, 2, 3], 4) should return [1, 2, 3, 4] .
Answer: A
Explanation:
The correct function uses the list method append() to add new_number to the end of numeric_list.
Correct code:
def add_item(numeric_list, new_number):
numeric_list.append(new_number)
return numeric_list
Example:
add_item([1, 2, 3], 4)
Result:
[1, 2, 3, 4]
Python's data structures documentation explains that list.append(x) adds an item to the end of the list.
Therefore, the correct answer isA.
NEW QUESTION # 25
Which Python data structure allows duplicate values and supports methods like append() and remove()?
Answer: A
Explanation:
A list is a Python data structure that can store multiple values. Lists can contain duplicate values, and they support methods such as append() and remove().
Example:
fruits = [ " apple " , " banana " , " apple " ]
fruits.append( " orange " )
fruits.remove( " banana " )
print(fruits)
Output:
[ ' apple ' , ' apple ' , ' orange ' ]
The value " apple " appears more than once, showing that lists allow duplicates.
The official Python documentation lists list.append() as a method that adds an item to the end of a list and list.
remove() as a method that removes the first matching value from a list.
Therefore, the correct answer is C. List.
NEW QUESTION # 26
What happens when the command python is entered in a terminal without a filename?
Answer: D
Explanation:
When the command python is entered in a terminal without a filename, Python starts aninteractive Python session, also called interactive mode.
In interactive mode, Python displays the primary prompt:
> > >
The user can then type Python statements directly, such as:
> > > 2 + 3
5
The official Python documentation explains that when commands are read from a terminal, the interpreter is in interactive mode and prompts for the next command.
Python does not automatically run the most recent file, open a file browser, or necessarily display an error when started this way.
Therefore, the correct answer isC. An interactive Python session starts.
NEW QUESTION # 27
Which terminal command is used to navigate to a different directory before running a Python script?
Answer: C
Explanation:
The command cd means "change directory." It is used in a terminal to move from one folder to another.
Example:
cd Desktop
After navigating to the correct folder, a Python script can be run with a command such as:
python script.py
Therefore, the correct answer isC. cd.
NEW QUESTION # 28
......
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