Explore topic-wise MCQs in Technical MCQs.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.

1.

getc() returns EOF when

A. End of files is reached
B. When getc() fails to read a character
C. Both A & B
D. None of the above
E.
Answer» D. None of the above
Discussion
2. 

        Note:Includes all required header files using namespace std;    int main ()   {    FILE *fp;    char x[1024];    fp = fopen("find.txt", "r");  // "ayushjain and prateek"     x[0] = getc(fp);                  fseek(fp, 0, SEEK_END);            fseek(fp, -7L, SEEK_CUR);          fgets(x, 6, fp);                 puts(x);                         return 0;}
18.In fopen(), the open mode "wx" is sometimes preferred "w" because. i) Use of wx is more efficient. ii) 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.

A. Only i
B. Only ii
C. Both i & ii
D. None of the above
Answer» C. Both i & ii
Discussion
3. 

         Note:Includes all required header filesusing namespace std;    int main ()    {        int p = 10;        double q = 1.14;                cout << p + q;        endl (cout);        return 0;    }
17.What will be the output of this program?

A. ayushj
B. yushja
C. ayushja
D. prate
Answer» E.
Discussion
4. 

         Note:Includes all required header filesusing namespace std;    int main ()     {            char i;        streambuf * p;        ofstream of ("find.txt");        pbuf = of.rdbuf();        do {            i = cin.get();            p -> sputc(i);        } while (i != '.');        of.close();         return 0;    }
16.What will be the output of this program?

A. 10
B. 1.14
C. 11.14
D. All of the above
Answer» E.
Discussion
5. 

         Note:Includes all required header files using namespace std;    int main ()    {        int p = 1000;        double q = 3.14;        cout << p;        cout << endl;        cout << q << endl << p * q;        endl (cout);        return 0;    }
15.Which of the following is true about the following program

A. insertion operator
B. $ symbol
C. dot operator
D. none of the mentioned
Answer» E.
Discussion
6. 

        Note:Includes all required header files           using namespace std;    int main ()     {        ofstream outfile ("find.txt");        for (int i = 0; i < 70; i++)        {            outfile << i;            outfile.flush();        }        cout << "Done";        outfile.close();        return 0;    }
14.What is the output of this program?

A. 1000
B. 3.14
C. 3140
D. All of the above
Answer» E.
Discussion
7. 

         Note:Includes all required header files using namespace std;    int main ()    {        char fine, course;        cout << "Enter a word: ";        fine = cin.get();        cin.sync();        course = cin.get();        cout << fine << endl;        cout << course << endl;        return 0;    }
13.What is the output of this program?

A. Done
B. Error
C. Runtime error
D. None of the mentioned
Answer» C. Runtime error
Discussion
8. 

         Note:Includes all required header filesusing namespace std; int main() {   ofstream ofile;    ofile.open ("find.txt");    ofile << "letsfindcourse" << endl;   cout << "Data written to file" << endl;   ofile.close();    return 0;}
12.What is the output of this program?

A. course
B. fine
C. Returns fine 2 letter or number from the entered word
D. None of the mentioned
Answer» D. None of the mentioned
Discussion