Computer Sciences MCQs Chapter 14 Class 12

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Created on February 22, 2023 By Ali Durrani

Computer Sciences Ch 14 Class 12

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Which of the following mode open only an existing file for both reading and writing?

"w"

"r+"

"w+"

"a+"

2 / 20

16. In file handling sequence of characters refers to

Text Stream

File Stream

Binary Stream

Character Stream

3 / 20

19. In text file, data is stored in:

ASCII code

Binary code

Octal code

text code

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3. On successfully closing a file , the fclose( ) returns:

NULL

file pointer

5 / 20

12. function is used to read a single character from a file at a time:

fscanf()

getch()

fgetc()

6 / 20

18. In binary stream bytes have correspondence

One to one

One to Many

Many to One

All of Above

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4. An array subscript should be a) int c) double

int

double

float

an array

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8. To store data for future use it must be stored on

RAM

Secondary Storage

ROM

All of Above

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5. A data file a stored in:

RAM

EEPROM

hard disk

None

10 / 20

7.function is used to write a string to a file:

puts()

fputs()

Put()

fgets()

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II. A stream is associated with a file using and operaton

Associatio

Attach

Link

Open

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9. A collection of related records is called

Data

Database

Field

File

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17. In text stream characters have correspondence

One to One

One to Many

Many to One

All of above

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1. A file is stored in

RAM

Hard Disk

ROM

cache

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15. There are types of streams

many

16 / 20

13. function is used as formatted output file function:

printf()

fprintf()

puts()

fputs()

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20. is true about a stream:

It is a general name given to a flow

It is simply a sequence of bytes.

It is a logical interface to data files.

All of these

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2. Which of the following function is used to write a string to a file?

puts( )

pute( )

fputs()

fgets( )

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14. If programs get input data from data file and also send output into data file. It is called:

files

file processing

data files

file handling

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10. A logical interface to a file is called

I/O

Stream

File I/O

Pointer

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