CBSE Class 12 Computer Science File Handling MCQs Set 01

Question: Storage devices of a computer can be broadly classified into_______categories.

a) One

b) Two

c) Three

d) Four

Answer: Two

Question: _______storage is temporary.

a) Volatile

b) Non-volatile

c) Movable

d) Immovable

Answer: Volatile

Question: In_______storage values stored in variables are lost when a computer is shutdown.

a) Volatile

b) Non-volatile

c) Movable

d) Immovable

Answer: Volatile

Question: A Java program that stores a value in a________uses Random Access Memory (RAM).

a) Cell

b) Program

c) Variable

d) All of these

Answer: Variable

Question: Apart from variables, objects and their references are generally stored in______

a) ROM

b) PROM

c) RAM

d) Hard Disk

Answer: RAM

Question: Once the program terminates or the computer shuts down, the data is________from RAM.

a) Stored

b) Lost

c) Available

d) Accessible

Answer: Lost

Question: _______storage is permanent storage.

a) Volatile

b) Non-volatile

c) Movable

d) Immovable

Answer: Non-volatile

Question: Data is not_______when a computer loses power in a Non-volatile storage.

a) Stored

b) Lost

c) Available

d) Accessible

Answer: Lost

Question: When a Java program is saved on a disk, it is using______storage.

a) Temporary

b) Provisional

c) Conditional

d) Permanent

Answer: Permanent

Question: A computer_______is a collection of data stored on a non-volatile device.

a) File

b) Desktop

c) Directory

d) Device

Answer: File

Question: _______exist on permanent storage devices, such as hard disks, USB drives, optical disks and compact discs.

a) Files

b) Manuals

c) Directories

d) Devices

Answer: Files

Question: Data stored in files is often called_______data.

a) Text

b) Persistent

c) Informative

d) Binary

Answer: Persistent

Question: Files can be further classified broadly into_______categories.

a) One

b) Two

c) Three

d) Four

Answer: Two

Question: ______files contain data that can be read in a text editor.

a) Text

b) Manuscript

c) Memo

d) Binary

Answer: Text

Question: In the_______files the data has been encoded using a scheme such as ASCII or Unicode.

a) Text

b) Memo

c) Informative

d) Binary

Answer: Text

Question: ______files can be data files that contain facts, such as payroll file that contains employee numbers, names and salaries.

a) Binary

b) Memo

c) Program

d) Text

Answer: Text

Question: Some_______files can be program files or application files mat store software instructions.

a) Binary

b) Memo

c) Program

d) Text

Answer: Text

Question: are examples of editors through which text files can be created.

a) G edit

b) vi

c) pico

d) All of these

Answer: All of these

Question: The extensions of the files created through the above editor can have an extension like_________

a) Text

b) Java

c) C

d) All of these

Answer: All of these

Question: _____files contain data that has not been encoded as text.

a) Binary

b) Memo

c) Informative

d) Text

Answer: Binary

Question: The contents of a_______file are in binary format, which means the data is access terms of bytes.

a) Binary

b) Memo

c) Informative

d) Text

Answer: Binary

Question: The Binary files extensions examples are_______

a) Jpeg

b) Mp3

c) Class

d) All of these

Answer: All of these

Question: Java language supports various operations that can be performed on file or on_______

a) Programs

b) Attributes

c) Directories

d) Queries

Answer: Directories

Question: _______operations that can be performed on files using Java programs.

a) Determining the path of a file or a directory

b) Opening a file

c) Writing to a file

d) All of these

Answer: All of these

Question: _______operations that can be performed on files using Java programs.

a) Reading from a file

b) Closing or deleting a file

c) Querying the attributes of a file

d) All of these

Answer: All of these

Question: Java provides built-in_______that contains methods to help with the tasks related to file.

a) Variables

b) Packages

c) Classes

d) Devices

Answer: Classes

Question: The Java classes are present in package.

a) Java, bytes

b) Java.io

c) Java.util

d) Java.method

Answer: Java.io

Question: Java uses the concepts of______in file handling.

a) File systems

b) Streams

c) Packages

d) Classes

Answer: Streams

Question: Java provides_____different categories of java classes to perform I/O operations on bytes and characters.

a) One

b) Two

c) Three

d) Four

Answer: Two

Question: Which of the following is not a Binary file extension ?

a) Jpeg

b) Mp3

c) Class

d) txt

Answer: txt

Question: Which of the following is not a Text file extension ?

a) Txt

b) Java

c) Jpeg

d) C

Answer: Jpeg

Question: The_______class encapsulates information about the properties of a file or a directory.

a) Java.io.file

b) Java.oi.file

c) Java.util.io

d) Java.io.util

Answer: Java.io.file

Question: ________class can be used to access attributes of files and directions.

a) File

b) I/O

c) Java

d) util

Answer: File

Question: A programmer can do______a file or a directory.

a) Create

b) Rename

c) Delete

d) All of these

Answer: All of these

Question: The creation of a file Object that belongs to_____class does not imply that the file or directory exists.

a) File

b) I/O

c) Java

d) Util

Answer: File

Question: The______of a file can also be accessed like its permissions, length of a file or last modification time.

a) Features

b) Attributes

c) Qualities

d) Traits

Answer: Attributes

Question: A file________encapsulates a path name or reference to a physical file or a directory on the hard disk.

a) Method

b) Class

c) Object

d) Handler

Answer: Object

Question: There are nearly______that can be used to perform various operations on a file or a directory.

a) 25 methods

b) 30 methods

c) 35 methods

d) 20 methods

Answer: 30 methods

Question: _______does not provide any method to read from a file or write into a file.

a) File class

b) File method

c) File object

d) File operator

Answer: File class

Question: There are several_______classes to perform to read from a file or write into a file.

a) File

b) Stream

c) Package

d) Object

Answer: Stream

Question: By using the file class, one can create a______to any file by providing its absolute path in string format or by providing the relative path.

a) Location

b) Reference

c) Stream

d) Object

Answer: Reference

Question: The file class provides_______constructors to refer a file or a directory.

a) File (String path)

b) File (String directory_path, String file_name)

c) File (File directory, String file_name)

d) All of these

Answer: All of these

Question: In Linux, "password" file is present in_______directory stores the information of the users existing in the system.

a) "/etc"

b) “/pwd"

c) "/file"

d) “/dir"

Answer: "/etc"

Question: Suppose one wants to display its attributes, then its Java file object can be created using_______ways.

a) One

b) Two

c) Three

d) Four

Answer: Three

Question: _______method of file class returns true if the file or directory exists, otherwise returns false.

a) Boolean exists( )

b) Boolean is File()

c) Boolean is Directory( )

d) Boolean is Hidden( )

Answer: Boolean exists( )

Question: ______method of file class returns true if the file exists, otherwise returns false.

a) Boolean exists ( )

b) Boolean is File( )

c) Boolean is Directory( )

d) Boolean is Hidden( )

Answer: Boolean is File( )

Question: _____method of file class returns true if the directory exists, otherwise returns false.

a) Boolean exists( )

b) Boolean is File( )

c) Boolean is Directory( )

d) Boolean is Hidden( )

Answer: Boolean is Directory( )

Question: _______method of file class returns true if the file or directory is hidden.

a) Boolean exists ( )

b) Boolean is File( )

c) Boolean is Directory( )

d) Boolean is Hidden( )

Answer: Boolean is Hidden( )

Question: ______method of file class returns the absolute path of the file exists or directory.

a) String[ ] list( )

b) String get Path( )

c) String get Name( )

d) String get Absolute Path()

Answer: String get Absolute Path()

Question: ________method of file class returns the name of the file or directory referred by the object.

a) String[ ] list( )

b) String get Path( )

c) String get Name( )

d) String get Absolute Path()

Answer: String get Name( )

Question: _______method of file class returns the path to the file or directory.

a) String[ ] Hst( )

b) String get Path( )

c) String get Name( )

d) String get Absolute Path()

Answer: String get Path( )

Question: _______method of file class returns the name of the files and directories in a directory.

a) String[ ] list( )

b) String get Path( )

c) String get Name( )

d) String get Absolute Path()

Answer: String[ ] list( )

Question: _______method of file class returns the number of bytes in that file.

a) Long length( )

b) File[ ] list Files( )

c) Both (A) and (B)

d) None of these

Answer: Long length( )

Question: ________method of file class returns an array of abstract path names denoting the files in the directory.

a) Long length ( )

b) File[ ] list Files( )

c) Both (A) and (B)

d) None of these

Answer: File[ ] list Files( )

Question: ______method to list all the files present in a directory.

a) Display()

b) List( )

c) Dir()

d) Files()

Answer: List( )

Question: To modify a file or display the contents of a file, the concept of______has to be understood.

a) Files

b) Streams

c) Packages

d) Objects

Answer: Streams

Question: Java uses______classes to carry out read and write operations on files.

a) Files

b) Streams

c) Packages

d) Objects

Answer: Streams

Question: ______is an input device.

a) Monitor

b) Speaker

c) Keyboard

d) Plotter

Answer: Keyboard

Question: ______is an output device.

a) Monitor

b) Speaker

c) Keyboard

d) Plotter

Answer: Monitor

Question: ________can be classified as both input and output device as data can be stored and read from the files.

a) Monitor

b) Speaker

c) Keyboard

d) Hard disk

Answer: Hard disk

Question: _________are manufactured by various companies and come with different storage capacities like 500GB or 1 TB.

a) Monitor

b) Speaker

c) Keyboard

d) Hard disk

Answer: Hard disk

Question: ______can be connected using different cables like USB or SATA.

a) Hard disk

b) Scanner

c) Printer

d) Mouse

Answer: Hard disk

Question: A Java programmer does not need to worry about the technical details like type of______or its capacity while developing a program to perform read / write operations over the files

a) Hard disk

b) Scanner

c) Printer

d) Mouse

Answer: Hard disk

Question: The above point is possible because Java language provides functionality of______

a) Files

b) Streams

c) Directories

d) Objects

Answer: Streams

Question: A______is an abstract representation of an input or output device that is used as a source or destination for data.

a) File

b) Directory

c) Stream

d) Disk

Answer: Stream

Question: Visualize a______as a sequence of bytes that flows into the program or that flows out of the program.

a) File

b) Directory

c) Stream

d) Disk

Answer: Stream

Question: One can write data or read data using_______

a) Files

b) Streams

c) Directories

d) Objects

Answer: Streams

Question: When data is written to stream, the stream is called an________

a) Output stream

b) Input stream

c) I/O stream

d) Both (A) and (B)

Answer: Output stream

Question: The_______can transfer data from the program to a file on a hard disk or a monitor or to some other computer over the network.

a) Output stream

b) Input stream

c) I/O stream

d) Both (A) and (B)

Answer: Output stream

Question: An______is used to read data from an external device to the program.

a) Output stream

b) Input stream

c) I/O stream

d) Both (A) and (B)

Answer: Input stream

Question: _______can transfer data from keyboard or from the file on a hard disk to the program.

a) Output stream

b) Input stream

c) I/O stream

d) Both (A) and (B)

Answer: Input stream

Question: The main reason for using streams for input or output operations is to make our program independent of the_______involved.

a) Hard Disks

b) Keyboards

c) Printers

d) Devices

Answer: Devices

Question: _______is advantage of using streams.

a) Programmer does not need to worry about the technical details of the device.

b) The program can work for a variety of input/ output devices without any changes to the source code.

c) Both (A) and (B)

d) None of these

Answer: Both (A) and (B)

Question: To understand byte streams and character streams, one needs to differentiate between character and byte______

a) Representation

b) Collection

c) Numbers

d) Particulars

Answer: Representation

Question: If '5' is represented as a Character, its ASCII value will be______

a) 51

b) 52

c) 53

d) 54

Answer: 53

Question: If 5 is represented as a character, its binary representation will be_______

a) 53

b) 5

c) 101

d) 00110101

Answer: 00110101

Question: If '5' is represented as a binary number, then its value will be______

a) 53

b) 5

c) Five

d) 101

Answer: 5

Question: If '5* is represented as a binary number, then its binary representation will be_______

a) 00000101

b) 11001100

c) 10101100

d) 11111000

Answer: 00000101

Question: A character is generally stored using ASCII or Unicode format but when it is used for calculation purpose and then it's________value is meaningful.

a) Binary

b) Actual

c) Objective

d) Text

Answer: Binary

Question: In the statement int i = 32, the_____is true.

a) Declares 'i' as an integer type variable

b) That T stores number 32.

c) Both (A) and (B)

d) None of these

Answer: Both (A) and (B)

Question: The number 32 can be represented as two separate_______'3' and '2'.

a) Numbers

b) Values

c) Characters

d) All of these

Answer: Characters

Question: For numerical calculations, data types like int, float or double are used, that allows storing the numbers in_______format.

a) Actual

b) Text

c) Character

d) Binary

Answer: Binary

Question: Java supports two types of streams_______stream and______stream.

a) Byte

b) Character

c) Both (A) and (B)

d) None of these

Answer: Both (A) and (B)

Question: ______transfer data in the form of bytes to the file or devices are known as byte stream or binary stream.

a) Streams

b) Files

c) Data Flow

d) Commands

Answer: Streams

Question: The files that are created using______stream are known as binary files.

a) Byte

b) Character

c) Both (A) and (B)

d) None of these

Answer: Byte

Question: If variables are to be stores like integer, double or boolean into a file, then_______files should be used.

a) Byte

b) Text

c) Character

d) Binary

Answer: Binary

Question: ______files can also be used to store arrays or objects.

a) Byte

b) Text

c) Character

d) Binary

Answer: Binary

Question: Similarly text files and program codes are created using_______stream.

a) Byte

b) Character

c) Both (A) and (B)

d) None of these

Answer: Character

Question: Text files and program codes can be opened in text editors like vi and SciTE.

a) SciTE

b) vi

c) Both (A) & (B)

d) None of these

Answer: Both (A) & (B)

Question: Java provides_____set of classes, character stream class and binary stream class.

a) One

b) Two

c) Three

d) Four

Answer: Two