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TCS NQT Questions on File Handling Quiz- 1

Question 1

Time: 00:00:00

A mode which is used to open an existing file for both reading and writing ______

”W”

”W+”

”R+”

”A+”

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R+ mode is used to open an existing fiel for both reading and writing.

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Question 2

Time: 00:00:00

Select text file in which data is stored in ________

ASCII code

Binary code

Octal code

text code

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ASC11 code is the text file in which data is stored .

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Question 3

Time: 00:00:00

A data of the file is stored in a

Ram

Hard disk

Rom

None

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A data of the file is stored in Hard disk.

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Question 4

Time: 00:00:00

We should not read after a write to a file without an intervening call to fflush(), fseek() or rewind()

TRUE

FALSE

May Be

Can't Say

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True, we should not be able to read a file after writing in that file without calling the below functions.

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Question 5

Time: 00:00:00

Offset used in fseek() function call can be a negative number.

TRUE

FALSE

May Be

Can't Say

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True, offset in fseek() function can be a negative number. It makes the file pointer to move backwards from the current position

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Question 6

Time: 00:00:00

In fopen(), the open mode "wx" is sometimes preferred "w" because.
1) Use of wx is more efficient.
2) If w is used, old contents of file are erased and a new empty file is created. When wx is used, fopen() returns NULL if file already exists.

Only 1

Only 2

Both 1 and 2

Neither 1 nor 2

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If w is used, old contents of file are erased and a new empty file is created. When wx is used, fopen() returns NULL if file already exists.

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Question 7

Time: 00:00:00

Select text file in which number will take.

2 bytes

4 bytes

3 bytes

8 bytes

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4 bytes number will take

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Question 8

Time: 00:00:00

fp = fopen("letsfindcourse.txt", "a");

Attach

Append

Apprehend

Add

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Append is the meant by 'a' in the following operation.

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Question 9

Time: 00:00:00

_____removes the named file, so that a subsequent attempt to open it will fail.

remove(const *filename)

remove(filename)

remove()

fclose(filename)

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remove(const *filename) removes the named file, so that a subsequent attempt to open it will fail. It returns non-zero of the attempt fails.

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Question 10

Time: 00:00:00

#include
int main(){
char c;
FILE *fp;
fp=fopen("demo.txt","a+"); // demo.txt : hello you are reading a file
fprintf(fp," demo");
fclose(fp);
fp=fopen("myfile.txt","r");

while((c=fgetc(fp))!=EOF)
printf("%c",c);
fclose(fp);
return 0;
}

hello you are reading a file

hello you are reading a file demo

demo

None of the above

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Mode a+ means we can read and write on file but when we will write on file it will append at the end content and it doesn't truncate the content of file.

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["0","40","60","80","100"]

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