IO Class MCQ

Test your knowledge with important IO Class MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more IO Class MCQs at Bissoy

• Which among the following is a serialization descriptor for any class?
  ক

  StreamClass

  খ

  ObjectStreamClass

  গ

  ObjectStream

  ঘ

  StreamObjectClass
• RandomAccessFile can be used to _______________________
  ক

  Read from a random access file

  খ

  Write to a random access file

  গ

  Read and write to a random access file

  ঘ

  Restricts read and write to a random access file
• PushBackReader allows the streams to be pushed back to the stream.
  ক

  True

  খ

  False
• Which exception handler can be used when character encoding is not supported?
  ক

  UnsupportedException

  খ

  UnsupportedEncodingException

  গ

  SupportException

  ঘ

  EncodingException
• StringReader handles _____________________
  ক

  Any character stream

  খ

  A character stream whose source is an array

  গ

  A character stream whose source is character array

  ঘ

  A character stream whose source is String only
• Which class can handle IO class interrupt?
  ক

  ExceptionIO

  খ

  InteruptedIO

  গ

  InteruptedIOException

  ঘ

  IOInteruptException
• Reader class is _________________
  ক

  Used to read from files

  খ

  Abstract class to read character streams

  গ

  Abstract class to input character streams

  ঘ

  Used to take input from standard input stream
• Which class among the following makes incorrect assumptions?
  ক

  LineNumberInputStream

  খ

  LineNumberReader

  গ

  LineReader

  ঘ

  LineBuffer
• What does FilePermission class do?
  ক

  This class is used to give permission rights to a file

  খ

  This class is used to restrict the use of permissions

  গ

  This class is used to represent device access permissions

  ঘ

  This class is used to represent file access permissions
• FileInputStream _________________________
  ক

  Gets the input stream from any device file

  খ

  Gets the input stream from any open socket

  গ

  Gets the input stream from any cache

  ঘ

  Gets the input stream from any open file only
• What is a FileDescriptor?
  ক

  A handle for machine specific structure of an open file

  খ

  A handle for program specific structure of an open file

  গ

  A handle for compiler specific structure of an open file

  ঘ

  A handle for representing device files structure
• File class is ____________________________
  ক

  An abstract of file representation only

  খ

  An abstract of path names only

  গ

  An abstract which can be used to represent path names or file

  ঘ

  An abstract which can represent a file in any format
• Which among the following class contains the methods to access character based console device?
  ক

  Console

  খ

  File

  গ

  Device

  ঘ

  Pipe
• IO class provides input and output through ______________________
  ক

  Data streams

  খ

  Serialization

  গ

  File system

  ঘ

  Data streams, serialization and file system
• What is the use of IO class?
  ক

  To handle all the input operations

  খ

  To handle all the output operations

  গ

  To handle all the input and output operations

  ঘ

  To handle all the input and output to the standard input