File Handling and Input Output in C Sharp MCQ question and answer with solution

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Learn File Handling and Input Output in C Sharp MCQ Questions and answers with easy and logical explanations in C# Program. File Handling and Input Output in C Sharp MCQ question provides all type of technical mcq questions which is important for technical exams, campus exams and other entrance examination. Page-4 section-1

Each section contains 100 MCQs on File Handling and Input Output in C Sharp .

Which class in C# is used to represent a stream of characters to be written to a file?

A) FileReader B) TextWriter C) TextReader D) StreamWriter

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the Directory.GetFiles() method in C#?

A) Moves all files from one directory to another B) Deletes all files in a specified directory C) Retrieves the names of files in a specified directory that match a specified pattern D) Retrieves the names of all files in a specified directory

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In C#, what is the method used to append lines to a file?

A) File.AppendLines() B) File.Append() C) File.WriteAllLines() D) File.WriteAllText()

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What does the File.ReadAllBytes() method do in C#?

A) Reads all lines from a file into a string B) Writes all bytes to a file from a byte array C) Checks if a file exists D) Reads all bytes from a file into a byte array

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In C#, which class is used to manipulate paths in a platform-independent manner?

A) Path B) Pathname C) FilePath D) FileHandler

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In C#, which method is used to read all lines from a file and return them as an array of strings?

A) File.ReadAllText() B) File.ReadAllBytes() C) File.ReadAllLines() D) File.ReadLines()

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What happens if you attempt to read from a file that is already open by another process in C#?

A) FileInUseException is thrown B) IOException is thrown C) InvalidOperationException is thrown D) None of the above

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Answer & Solution

Answer: Option B

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What is the purpose of the File.Open() method in C#?

A) Opens an existing file for appending B) Opens an existing file for writing C) Opens an existing file or creates a new file D) Opens an existing file for reading

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the File.GetLastWriteTime() method in C#?

A) Retrieves the date and time when the specified file was last accessed B) Retrieves the date and time when the specified file was created C) Retrieves the date and time when the specified file was last modified D) Retrieves the date and time when the specified file was last written to

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In C#, which method is used to delete a directory, and optionally any subdirectories and files in the directory?

A) Directory.Delete() B) Directory.Remove() C) Directory.Erase() D) Directory.Clean()

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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File Handling and Input Output in C Sharp MCQ question and answer with solution | C# Program MCQs