Question 1

What two methods can be used to return a copy of a string named s converted to all lowercase and all uppercase respectively?

Accepted Answer

A)   s.lower() 
B)   s.lowcase() 
C)   s.upper() 
D)   s.upcase() E) A) and C)
F) None of the above

Question 2

The string is a mutable data structure.

Accepted Answer

A) True 
 B)False

Question 3

Using a text editor such as Notepad or TextEdit, you can create, view, and save data in a text file.

Accepted Answer

A) True 
 B)False

Question 4

You are attempting to open a file containing a list of integer numbers, each on a separate line, and read them into Python as int types. What statement could you use to do this, assuming each line is represented by the line variable in a continuous loop?

Accepted Answer

A)   num = int(line.strip() ) 
B)   num = line.strip() 
C)   num = line.strip(int(line) ) 
D)   num = line[:-1]E) B) and C)
F) All of the above

Question 5

What statement regarding the structure of strings is accurate?

Accepted Answer

A)   A string is a sequence of zero or more characters.
B)   A string's length as calculated by the len()  function is always "1".
C)   A string cannot be decomposed into more primitive parts.
D)   A string is a mutable data structure.E) A) and C)
F) A) and B)

Question 6

A Caesar cipher uses a plaintext character to compute two or more encrypted characters, and each encrypted character is computed using two or more plaintext characters.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following are examples of protocols that utilize encryption for data transfer? (Choose two.)

Accepted Answer

A)   HTTP
B)   HTTPS
C)   FTPS
D)   RCPE) None of the above
F) All of the above

Question 8

What happens if you attempt to access a string using an index equal to the string's length?

Accepted Answer

A)   The entirety of the string will be accessed.
B)   The name of the string will be accessed.
C)   The string's location in memory will be returned.
D)   An error will occur, indicating the index is out of range.E) None of the above
F) A) and B)

Question 9

The exists file system function is included in the os.path module.

Accepted Answer

A) True 
 B)False

Question 10

A difference between functions and methods is that methods cannot return values.

Accepted Answer

A) True 
 B)False

Exam 4: Strings and Text Files

What happens if you attempt to access a string using an index equal to the string's length?

Correct Answer
verified

The string is a mutable data structure.

Correct Answer
verified

What statement regarding the structure of strings is accurate?

Correct Answer
verified

A Caesar cipher uses a plaintext character to compute two or more encrypted characters, and each encrypted character is computed using two or more plaintext characters.

Correct Answer
verified

Which of the following are examples of protocols that utilize encryption for data transfer? (Choose two.)

Correct Answer
verified

The exists file system function is included in the os.path module.

Correct Answer
verified

Using a text editor such as Notepad or TextEdit, you can create, view, and save data in a text file.

Correct Answer
verified

You are attempting to open a file containing a list of integer numbers, each on a separate line, and read them into Python as int types. What statement could you use to do this, assuming each line is represented by the line variable in a continuous loop?

Correct Answer
verified

What two methods can be used to return a copy of a string named s converted to all lowercase and all uppercase respectively?

Correct Answer
verified

A difference between functions and methods is that methods cannot return values.

Correct Answer
verified

Exam 4: Strings and Text Files

What happens if you attempt to access a string using an index equal to the string's length?

Correct AnswerverifiedShow Answer

The string is a mutable data structure.

Correct AnswerverifiedShow Answer

What statement regarding the structure of strings is accurate?

Correct AnswerverifiedShow Answer

A Caesar cipher uses a plaintext character to compute two or more encrypted characters, and each encrypted character is computed using two or more plaintext characters.

Correct AnswerverifiedShow Answer

Which of the following are examples of protocols that utilize encryption for data transfer? (Choose two.)

Correct AnswerverifiedShow Answer

The exists file system function is included in the os.path module.

Correct AnswerverifiedShow Answer

Using a text editor such as Notepad or TextEdit, you can create, view, and save data in a text file.

Correct AnswerverifiedShow Answer

You are attempting to open a file containing a list of integer numbers, each on a separate line, and read them into Python as int types. What statement could you use to do this, assuming each line is represented by the line variable in a continuous loop?

Correct AnswerverifiedShow Answer

What two methods can be used to return a copy of a string named s converted to all lowercase and all uppercase respectively?

Correct AnswerverifiedShow Answer

A difference between functions and methods is that methods cannot return values.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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