C# Questions & Answers – Introduction of Stream Classes

This section of our 1000+ C# MCQs focuses on introduction of stream classes in C# Programming Language.

1. Select the namespace on which the stream classes are defined?
a) System.IO
b) System.Input
c) System.Output
d) All of the mentioned
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2. Choose the class on which all stream classes are defined?
a) System.IO.stream
b) Sytem.Input.stream
c) System.Output.stream
d) All of the mentioned
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3. Choose the stream class method which is used to close the connection?
a) close()
b) static close()
c) void close()
d) none of the mentioned
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4. The method used to write a single byte to an output stream?
a) void WriteByte(byte value)
b) int Write(byte[] buffer ,int offset ,int count)
c) write()
d) none of the mentioned
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5. Select the method which writes the contents of the stream to the physical device.
a) fflush()
b) void fflush()
c) void Flush()
d) flush()
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6. Select the method which returns the number of bytes from the array buffer:
a) void WriteByte(byte value)
b) int Write(byte[] buffer, int offset, int count)
c) write()
d) none of the mentioned
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7. Name the method which returns integer as -1 when the end of file is encountered.
a) int read()
b) int ReadByte()
c) void readbyte()
d) none of the mentioned
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8. Select the statements which define the stream.
a) A stream is an abstraction that produces or consumes information
b) A stream is linked to a physical device by the I/0 system
c) C# programs perform I/O through streams
d) All of the mentioned
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9. Select the action of the method long seek()?
a) Attempts to readup to count bytes into buffer starting at buffer[offset]
b) Writes a single byte to an output stream
c) Sets the current position in the stream to the specified offset from specified origin and hence returns the new position
d) None of the mentioned
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long Seek(long offset, SeekOrigin origin)

10. Which among the following attempts to read up to count bytes into buffer starting at buffer[offset], returning the number of bytes successfully read?
a) int ReadByte()
b) int Read(byte[] buffer, int offset, int count)
c) Void WriteByte(byte value)
d) None of the mentioned
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Sanfoundry Global Education & Learning Series – C# Programming Language.

To practice all areas of C# language, here is complete set of 1000+ Multiple Choice Questions and Answers.

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