File Input Output in Ruby MCQ question and answer with solution

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Current Affairs Interview Blog

How do you check the size of a file in Ruby?

A) Using File.bytes method B) Using File.size method C) Using File.sizeof method D) None of the above

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Answer & Solution

Answer: Option B

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Which method is used to delete a file in Ruby?

A) File.erase("filename") B) File.destroy("filename") C) File.delete("filename") D) File.remove("filename")

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Answer & Solution

Answer: Option C

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What does the binmode method do in Ruby file I/O?

A) Sets the file mode to text mode B) Sets the file mode to read-only mode C) Sets the file mode to write-only mode D) Sets the file mode to binary mode

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Answer & Solution

Answer: Option D

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How can you check if a file is readable in Ruby?

A) Using File.readable? method B) Using File.can_read? method C) Using File.open("filename", "r") method D) Using File.read method

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Answer & Solution

Answer: Option A

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What does the truncate method do in Ruby file I/O?

A) Truncates the file to the end of the file B) Truncates the file to the beginning of the file C) Truncates the file to the current position of the file pointer D) Truncates the file to a specified size

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Answer & Solution

Answer: Option D

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Which method is used to check if a file is executable in Ruby?

A) File.can_execute?("filename") B) File.is_executable?("filename") C) File.executable?("filename") D) File.runnable?("filename")

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Answer & Solution

Answer: Option C

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How can you get the absolute path of a file in Ruby?

A) Using File.real_path method B) Using File.expand_path method C) Using File.path method D) None of the above

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Answer & Solution

Answer: Option B

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What does the fcntl method do in Ruby file I/O?

A) Changes file permissions B) Retrieves file attributes C) Manipulates file descriptor D) Modifies file content

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Answer & Solution

Answer: Option C

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How do you create a new directory in Ruby?

A) Using Dir.create method B) Using Dir.new method C) Using Dir.make method D) Using Dir.mkdir method

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Answer & Solution

Answer: Option D

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What is the purpose of the chown method in Ruby file I/O?

A) Changes the file attributes B) Changes the file timestamp C) Changes the file owner and group D) Changes the file permissions

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Answer & Solution

Answer: Option C

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File Input Output in Ruby MCQ question and answer with solution | Ruby Programming MCQs