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| Section | Weight | Objectives |
|---|---|---|
| Functions and Modular Programming | 20% | - Variable scope and code reuse - Defining and calling functions - Parameters, arguments, and return values |
| Control Flow and Decision Making | 20% | - Comparisons and logical operators - If, elif, else statements - Conditional expressions |
| Data Structures and Input/Output | 20% | - Lists, tuples, dictionaries, sets - Basic file handling - User input and output operations |
| Loops and Iteration | 20% | - For loops and while loops - Iterating over sequences - Break, continue, and pass statements |
| Variables, Data Types, and Basic Operations | 20% | - Arithmetic operations and type conversion - Variables and assignment - Data types: integers, floats, strings, booleans |
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NEW QUESTION # 15
A program uses this while loop to count down:
count = 5
while count > 0:
print(count)
Which issue is preventing the loop from working correctly?
Answer: B
Explanation:
The loop condition is:
while count > 0:
At the start, count is 5, so the condition is true. The program prints the value of count.
However, inside the loop, the value of count is never changed. That means count always stays 5, so the condition count > 0 is always true. As a result, the loop runs forever.
A corrected version would be:
count = 5
while count > 0:
print(count)
count = count - 1
This decreases count by 1 during each loop iteration. Eventually, count becomes 0, and the condition count >
0 becomes false.
Therefore, the correct answer isB. It runs infinitely because count is never modified.
NEW QUESTION # 16
What does the string method ' ' .join() return when applied to the list [ ' Hello ' , ' World ' ]?
Answer: A
NEW QUESTION # 17
How does Jupyter Notebook function as a development environment?
Answer: D
Explanation:
Jupyter Notebook works as acell-based interactive coding platform. A notebook is made up of cells, and code can be written and executed inside those cells.
For example, a code cell may contain:
x = 10
print(x)
When the cell is run, the output appears directly below the cell.
The Jupyter Notebook documentation explains that notebooks consist of a sequence of cells, and the contents of a cell can be executed using keyboard shortcuts or the toolbar button.
Jupyter Notebook is not simply a command-line terminal replacement, not limited to static text editing, and not mainly a framework for compiling Python into standalone applications.
Therefore, the correct answer isB. Cell-based interactive coding platform.
NEW QUESTION # 18
Which tool is used to execute Python code line-by-line interactively within a terminal?
Answer: A
Explanation:
The Python shell allows Python code to be entered and executed interactively, one line at a time.
Example:
> > > 2 + 3
5
Python's documentation explains that when commands are read from a terminal, the interpreter is in interactive mode and prompts for the next command.
Therefore, the correct answer isA. Python shell.
NEW QUESTION # 19
Complete the function get_dict_keys(data) that takes a dictionary and returns a list of all its keys.
For example, get_dict_keys({ " name " : " John " , " age " : 25}) should return [ " name " , " age " ].
def get_dict_keys(data):
# TODO: Return a list of all dictionary keys
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: A dictionary stores data as key-value pairs.
Step 2: The .keys() method returns the dictionary's keys.
Step 3: To return the keys as a list, use list(data.keys()).
Correct code:
def get_dict_keys(data):
return list(data.keys())
Example:
print(get_dict_keys({ " name " : " John " , " age " : 25}))
Output:
[ ' name ' , ' age ' ]
NEW QUESTION # 20
......
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