66. What is the output of this program?
    

    #include 
        using namespace std;
        int main()
        {
            char ch[30];
            cout << "Enter Name: ";
            gets(ch);
            cout << "Name: ";
            puts(ch);
            return 0;
        }
    

1. 1. Runtime Error

   
   
   

   2. Garbage value

   
   
   

   3. Exception occur

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   In this program,we need to string header file to run this program.
   Compilation Error
   

   In function 'int main()':
   7:18: error: 'gets' was not declared in this scope
   

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67. Identify the correct statement.

1. 1. typedef create own types

   
   
   

   2. typedef does not create different types. It only creates synonyms of existing types

   
   
   

   3. typedef create different types

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   By using typedef, we can create a type of pre-existing type only not our own type of data.

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68. Which keyword is used to define the user defined data types?

1. 1. union

   
   
   

   2. def

   
   
   

   3. type

   
   
   

   4. typedef

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   typedef

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69. Which of the following header files is required for creating and reading data files?

1. 1. ifstream.h

   
   
   

   2. ofstream.h

   
   
   

   3. console.h

   
   
   

   4. fstream.h

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   In this fstream.h header file is used for accessing the files only.

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70. What does the data type defined by union will do?

1. 1. It allow one same portion of memory to be accessed as different data types

   
   
   

   2. It allow one different portion of memory to be accessed as different data types

   
   
   

   3. It allow one different portion of memory to be accessed as same data types

   
   
   

   4. It allow one same portion of memory to be accessed as same data types

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Union is used to define the data types of our choice and it will store the data type in one location make them accessible.

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