PCEP Certification Practice Test: Escaping using the Backslash character
PCEP Certification Practice Test - Questions, Answers and Explanations
Below is a set of questions for the Certified Entry-Level Python Programmer (PCEP) examination focusing on the subtopic "escaping using the \ character" for strings. The questions use various formats, including single- and multiple-select questions, fill-in-the-gap, code fill, code insertion, sorting, and more.
Question 1: What will be the output of the following code?
text = "He said, \"Hello!\"" print(text)
- He said, Hello!
- He said, \"Hello!\"
- He said, "Hello!"
- SyntaxError
Answer: C) He said, "Hello!"
Explanation: The backslash (\) before the double quotes is an escape character, allowing the double quotes to be included in the string.
Question 2: Which of the following escape sequences are correctly used in Python strings? (Choose all that apply)
- \n for a newline
- \\ for a backslash
- \' for a single quote inside a single-quoted string
- \b for a backspace
Answer: A) \n for a newline
B) \\ for a backslash
C) \' for a single quote inside a single-quoted string
D) \b for a backspace
Explanation: All listed escape sequences are correctly used in Python. \n is for a newline, \\ is for a literal backslash, \' allows a single quote inside a single-quoted string, and \b represents a backspace.
Question 3: Complete the code to include a backslash in the string.
path = "C:______Users\\Documents"▼
Answer: \
Explanation: To include a literal backslash in a string, you need to escape it with another backslash (\\).
Question 4: What will be the output of the following code?
text = 'It\'s a beautiful day!' print(text)
- It's a beautiful day!
- It\'s a beautiful day!
- Its a beautiful day!
- SyntaxError
Answer: A) It's a beautiful day!
Explanation: The backslash (\) is used to escape the single quote in "It's", allowing it to be included in the string without causing a syntax error.
Question 5: Insert the correct code to print the following path: C:\Program Files\Python.
path = ______ print(path)▼
Answer: "C:\Program Files\Python"
Explanation: The backslashes in the path need to be escaped with another backslash (\\).
Question 6: What will be the result of the following code?
print("Hello\nWorld")
- HelloWorld
- Hello World
- Hello\nWorld
- Hello World
Answer: D) Hello World
Explanation: The \n escape sequence creates a newline, so "Hello\nWorld" prints Hello on one line and World on the next.
Question 7: Which of the following strings contain correctly escaped sequences? (Choose all that apply)
- "He said, \"Yes!\""
- "Line 1\nLine 2"
- 'That\'s cool!'
- "C:\new_folder"
Answer: A) "He said, \"Yes!\""
B) "Line 1\nLine 2"
C) 'That\'s cool!'
Explanation: Options A, B, and C contain correctly escaped sequences. Option D should have \\ to correctly represent the backslash in the file path.
Question 8: Arrange the steps to correctly create a string that includes both single and double quotes.
- Use escape sequences to include quotes.
- Define the string.
- Print the string.
Answer: 2, 1, 3
Explanation: First, define the string, then use escape sequences to include the quotes, and finally print the string.
Question 9: Complete the code to correctly include both a single quote and a double quote in the string.
quote = ______'He said, "It\'s a great day!"'______▼
Answer: "
Explanation: The double quotes around the string allow both single and double quotes to be included, with the single quote escaped.
Question 10: What will be the output of the following code?
text = "Backslashes: \\\\" print(text)
- Backslashes: \\
- Backslashes: \
- Backslashes: \\\\
- SyntaxError
Answer: A) Backslashes: \\
Explanation: The escape sequence \\\\ results in two literal backslashes being printed.
Question 11: Insert the correct code to create a string that includes a tab character.
text = "Name:______John Doe" print(text)▼
Answer: "\t"
Explanation: The \t escape sequence represents a tab character.
Question 12: Which of the following escape sequences is used to include a double quote inside a double-quoted string?
- \\"
- \"
- \\\"
- \\
Answer: B) \"
Explanation: The \" escape sequence allows a double quote to be included inside a double-quoted string.
Question 13: Which of the following correctly include a newline in the string? (Choose all that apply)
- "First line\nSecond line"
- 'First line\nSecond line'
- '''First line\nSecond line'''
- "First line\\nSecond line"
Answer:A) "First line\nSecond line"
B) 'First line\nSecond line'
C) '''First line\nSecond line'''
Explanation: Options A, B, and C correctly use the \n escape sequence to include a newline. Option D incorrectly includes a literal backslash followed by n.
Question 14: Arrange the steps to correctly create a string with a backslash and print it.
- Escape the backslash with another backslash.
- Define the string.
- Print the string.
Answer: 2, 1, 3
Explanation: First, define the string, then escape the backslash with another backslash, and finally print the string.
Question 15: Complete the code to print the following text with a newline between "Hello" and "World".
print("Hello______World")▼
Answer: \n
Explanation: The \n escape sequence adds a newline between "Hello" and "World".
Question 16: What will be the output of the following code?
text = "The path is C:\\\\folder\\\\file.txt" print(text)
- The path is C:\folder\file.txt
- The path is C:\\folder\\file.txt
- The path is C:\\\folder\\\file.txt
- SyntaxError
Answer: A) The path is C:\folder\file.txt
Explanation: The escape sequences \\\\ in the string are interpreted as literal backslashes, so the output is C:\folder\file.txt.
17. Insert the correct code to include a double quote inside a double-quoted string.
text = "She said, ______Yes!\"" print(text)▼
Answer: \"
Explanation: The \" escape sequence allows a double quote to be included inside a double-quoted string..
Question 18: Which escape sequence would you use to include a backspace in a string?
- \\
- \b
- \n
- \t
Answer: B) \b
Explanation: The \b escape sequence represents a backspace.
Question 19: Which of the following strings will output It's "Python" when printed? (Choose all that apply)
- "It\'s \"Python\""
- 'It\'s "Python"'
- "It's "Python""
- 'It's "Python"'
Answer: A) "It\'s \"Python\""
B) 'It\'s "Python"'
Explanation: Options A, and B correctly handle the inclusion of single and double quotes. Option C and D are incorrect due to a syntax error.
Question 20: Arrange the steps to correctly include a single quote in a single-quoted string.
- Use the escape character \ before the single quote.
- Define the string.
- Print the string.
Answer: 2, 1, 3
Explanation: First, define the string, then escape the single quote with a backslash, and finally print the string.
Question 21: Complete the code to include both a tab and a newline in the string.
text = "Hello,______World!______" print(text)▼
Answer: \t, \n
Explanation: The \t escape sequence adds a tab, and the \n escape sequence adds a newline.
Question 22: What will be the output of the following code?
text = "Path: C:\\Users\\Public" print(text)
- Path: C:\Users\Public
- Path: C:\\Users\\Public
- Path: C:\\\Users\\\Public
- SyntaxError
Answer: A) Path: C:\Users\Public
Explanation: The escape sequences \\ are interpreted as literal backslashes, resulting in the output C:\Users\Public.
Question 23: Insert the correct code to include a backspace in the string.
text = "Python_________ is fun" print(text)▼
Answer: \b
Explanation: The \b escape sequence represents a backspace, removing the character before it.
Question 24: What will be the result of the following code?
text = "Hello\\nWorld" print(text)
- Hello World
- Hello\nWorld
- Hello World
- SyntaxError
Answer: B) Hello\nWorld
Explanation: The double backslash \\ is interpreted as a literal backslash, so \n is treated as a string rather than a newline escape sequence.
Question 25: Which of the following correctly include both single and double quotes in a string? (Choose all that apply)
- 'She said, "It\'s great!"'
- "She said, \"It's great!\""
- 'She said, \"It\'s great!\"'
- "She said, "It's great!"
Answer: A) 'She said, "It\'s great!"'
C) 'She said, \"It\'s great!\"'
Explanation: Options A, B, and C correctly escape the necessary quotes to include both single and double quotes in the string. Option D will raise a SyntaxError.
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