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Select the correct differences between char and varchar data types? i. varchar is non unicode and char is unicode character data type ii. char is ‘n’ bytes whereas varchar is actual length in bytes of data entered in terms of storage size iii. varchar is variable in length and char is the fixed length string iv. For varchar, if a string is less than the maximum length then it is stored in verbatim without any extra characters while for char if a string is less than the set length it is padded with extra characters to equalize its length to given length
What is the output of this program ? class main_arguments {
public static void main(String [ ] args)
{
String [][] argument = new String[2][2];
int x;
argument[0] = args;
x = argument[0].length;
for (int y = 0; y < x; y++)
System.out.print(" " + argument[0][y]);
}
}
Which among the following statement(s) is (are) true? (A) A hash function takes a message of arbitrary length and generates a fixed length code. (B) A hash function takes a message of fixed length and generates a code of variable length. (C) A hash function may give same hash value for distinct messages. Choose the correct answer from the options given below:
In a variable length argument function, the declaration “…” can _______
Statement I The product of coefficient of correlation, standard deviation of variable 'X' and Standard deviation of variable 'Y' gives the measure of covariance between X and Y variables.
Statement II The product of coefficient of correlation between X and Y variables and the ratio between standard deviation of X variable to standard deviation of Y variable measures the slope of the regression line of X on Y variable.
The question given below consists of a statement, followed by two arguments numbered I and II. You have to decide which of the arguments is a 'strong' argument and which is a 'weak' argument. Statement: Should women serve in combat units? Arguments: I. Yes, allowing women to serve in combat units is a positive step towards gender equality. II. No, women are the most emotional gender in India Give answer: (A) If only argument I is strong (B) If only argument II is strong (C) If either I or II is strong (D) If neither I nor II is strong and
All mortals are men. Socrates is mortal Therefore Socrates is a man. Which of the following statements are true of the above argument? (A) Above arguments is sound. (B) Above argument is valid. (C) Above argument is fallacious. (D) Above argument commits the fallacy of undistributed middle. Choose the correct answer from the options given below:
which one of the following is not correct?
1. If one of the premises is invalid, the argument is not true
2. An argument cannot be sound if one of the premise is false
3. If premises entail the conclusion then the argument will be valid
4. A deductive argument may be valid without being sound
Which of the following macro extracts an argument from the variable argument list (ie ellipsis) and advance the pointer to the next argument?
Which of the following statements related to 'C' language is/are FALSE? (i) A function must be declared globally in a C program to tell the compiler about the function name, function parameters, and return type. (ii) The parameter list must not differ in function calling and function declaration.