Intro to Python Exam Questions: well
answered to pass (33)
Why are functions helpful? - correct answer ✔✔Functions facilitate code reusability, readability, and
maintenance
What is "scope" in terms of programming language python? - correct answer ✔✔Scope is the term used
to describe the points at which in code variables and functions are defined.
Why is there an error when trying to run this code?
a=int(input())
b=int(input())
if c<a+b:
print("Less than a +b:)
a = b= c=1
print (a,b,c) - correct answer ✔✔The variable c is not in scope or defined in line 3.
Which of the following lines of code defines a function named "my_func" that has three parameters (a,
b, and c) where b defaults to 0 and c defaults to "Yes"?
a. my_func(a,b,c):
b. def my_func(a, b(0), c("yes"):
c. def my_func(a, b=0, c="Yes"):
d. def my_func(a, b, c): - correct answer ✔✔c
,Which of the following lines of code will not call a function named "my_func" that has three parameters
(a, b, and c) where b defaults to 0 and c defaults to "Yes"?
a.) my_func( )
b.) my_func(1, c="No")
c.) my_func(1)
d.) my_func(1, 2) - correct answer ✔✔a
Which of the following will import a specific function "add_numbers" from a library "adding_library"? -
correct answer ✔✔from adding_library import add_numbers
import <file name without the .py extension> (How to import the full module/libray)
from <file name without the .py extension> import < function name >
There is a function, "my_function". Within that function, a variable called "my_var" is created. In which
namespace does my_var exist? - correct answer ✔✔local
Python's int( ) function will take an argument and convert it to an integer. In which namespace does int( )
exist? - correct answer ✔✔built-in
Which best describes the difference between a comment and a docstring in Python? - correct answer
✔✔Comments do not have a functional purpose but docstrings tie into the Python documentation help
library.
Which of the following is not a Python library used frequently for data science applications?
a.) NumPy
b.)SciPy
,c.) Pandas
d.) DataPyScience - correct answer ✔✔d.
What is the difference between a syntax error and an exception? - correct answer ✔✔Exceptions are
run-time errors that cause application termination, if remaining untreated. Syntax errors are errors that
prevent an application from running because code does notconform to the language rules.
Which of the following options describes the best way to deal with a syntax error? - correct answer
✔✔Find the section of code referenced by the interpreter's error message as well as understanding the
code related to this section, to identify the problem.
If I try to open a file that does not exist using Python's open function, what will likely be the result? -
correct answer ✔✔A FileNotFoundError exception
Some code is being written where an exception may occur. The exception should be handled properly so
the application will not crash. The specific exception that may occur is the ZeroDivisionError exception.
Regardless of whether or not the exception occurs, there's some cleanup code that needs to run. What
should be done? - correct answer ✔✔Implement a try block, a specific ZeroDivisionError except block,
and a finally block.
Which of the following will set my logging level to CRITICAL? - correct answer
✔✔logging.basicConfig(level = logging.CRITICAL)
Why is Python a popular software development language? - correct answer ✔✔Python has a large
community of active developers building libraries and tools for Python development.
Python is very concise, meaning you can do more with less code.
Python is relatively easy to read.
NOT A REASON:
, (Python code is compiled into an executable, which is helpful for web development.)
In which specializations is Python a primary language of choice for professionals and researchers? -
correct answer ✔✔data science/artificial intelligence
The primary function of the python interpreter is to: - correct answer ✔✔read code, execute it, and
return the output
One of the benefits of Jupyter Notebook is that it... - correct answer ✔✔allows developers to combine
code, Markup, and raw text in one document
JupyterLab uses IPython as... - correct answer ✔✔the backend interpreter for python code
How do you represent a hexadecimal number in python? - correct answer ✔✔0x42
What is the result of this equation 80%25? - correct answer ✔✔5
If I have a string "my_string" with the value "Python is so powerful!" how do I substring to get just "is
so"? - correct answer ✔✔my_string[7:12]
remember, the string starts with 0, and the number 12, means that it will stop at 11
I want to open and write to a file called "thatfile.txt". If the file does not exist, I want to create it but if it
does exist, I want to write at the end of the file, preserving what's already in the file. How do I do that? -
correct answer ✔✔open("thatfile.txt", "a")
What is the value of the variable c after the following statement? a=b=c=d=5 - correct answer ✔✔5
What is the output of the following code if the user enters the number 0?
my_num = int(input())
answered to pass (33)
Why are functions helpful? - correct answer ✔✔Functions facilitate code reusability, readability, and
maintenance
What is "scope" in terms of programming language python? - correct answer ✔✔Scope is the term used
to describe the points at which in code variables and functions are defined.
Why is there an error when trying to run this code?
a=int(input())
b=int(input())
if c<a+b:
print("Less than a +b:)
a = b= c=1
print (a,b,c) - correct answer ✔✔The variable c is not in scope or defined in line 3.
Which of the following lines of code defines a function named "my_func" that has three parameters (a,
b, and c) where b defaults to 0 and c defaults to "Yes"?
a. my_func(a,b,c):
b. def my_func(a, b(0), c("yes"):
c. def my_func(a, b=0, c="Yes"):
d. def my_func(a, b, c): - correct answer ✔✔c
,Which of the following lines of code will not call a function named "my_func" that has three parameters
(a, b, and c) where b defaults to 0 and c defaults to "Yes"?
a.) my_func( )
b.) my_func(1, c="No")
c.) my_func(1)
d.) my_func(1, 2) - correct answer ✔✔a
Which of the following will import a specific function "add_numbers" from a library "adding_library"? -
correct answer ✔✔from adding_library import add_numbers
import <file name without the .py extension> (How to import the full module/libray)
from <file name without the .py extension> import < function name >
There is a function, "my_function". Within that function, a variable called "my_var" is created. In which
namespace does my_var exist? - correct answer ✔✔local
Python's int( ) function will take an argument and convert it to an integer. In which namespace does int( )
exist? - correct answer ✔✔built-in
Which best describes the difference between a comment and a docstring in Python? - correct answer
✔✔Comments do not have a functional purpose but docstrings tie into the Python documentation help
library.
Which of the following is not a Python library used frequently for data science applications?
a.) NumPy
b.)SciPy
,c.) Pandas
d.) DataPyScience - correct answer ✔✔d.
What is the difference between a syntax error and an exception? - correct answer ✔✔Exceptions are
run-time errors that cause application termination, if remaining untreated. Syntax errors are errors that
prevent an application from running because code does notconform to the language rules.
Which of the following options describes the best way to deal with a syntax error? - correct answer
✔✔Find the section of code referenced by the interpreter's error message as well as understanding the
code related to this section, to identify the problem.
If I try to open a file that does not exist using Python's open function, what will likely be the result? -
correct answer ✔✔A FileNotFoundError exception
Some code is being written where an exception may occur. The exception should be handled properly so
the application will not crash. The specific exception that may occur is the ZeroDivisionError exception.
Regardless of whether or not the exception occurs, there's some cleanup code that needs to run. What
should be done? - correct answer ✔✔Implement a try block, a specific ZeroDivisionError except block,
and a finally block.
Which of the following will set my logging level to CRITICAL? - correct answer
✔✔logging.basicConfig(level = logging.CRITICAL)
Why is Python a popular software development language? - correct answer ✔✔Python has a large
community of active developers building libraries and tools for Python development.
Python is very concise, meaning you can do more with less code.
Python is relatively easy to read.
NOT A REASON:
, (Python code is compiled into an executable, which is helpful for web development.)
In which specializations is Python a primary language of choice for professionals and researchers? -
correct answer ✔✔data science/artificial intelligence
The primary function of the python interpreter is to: - correct answer ✔✔read code, execute it, and
return the output
One of the benefits of Jupyter Notebook is that it... - correct answer ✔✔allows developers to combine
code, Markup, and raw text in one document
JupyterLab uses IPython as... - correct answer ✔✔the backend interpreter for python code
How do you represent a hexadecimal number in python? - correct answer ✔✔0x42
What is the result of this equation 80%25? - correct answer ✔✔5
If I have a string "my_string" with the value "Python is so powerful!" how do I substring to get just "is
so"? - correct answer ✔✔my_string[7:12]
remember, the string starts with 0, and the number 12, means that it will stop at 11
I want to open and write to a file called "thatfile.txt". If the file does not exist, I want to create it but if it
does exist, I want to write at the end of the file, preserving what's already in the file. How do I do that? -
correct answer ✔✔open("thatfile.txt", "a")
What is the value of the variable c after the following statement? a=b=c=d=5 - correct answer ✔✔5
What is the output of the following code if the user enters the number 0?
my_num = int(input())
