Answer:
scanf() function is used to get a input from keyboard.This function is in the stdio.h library.To use this function we must include the stdio.h library first in the code. Then only we can use the scanf() function in any code.printf() function is used to print anything .this function is from stdio.h library.
Code to read voltage drop across the register.
#include <stdio.h>
// main function
int main(void) {
// variable
double vr1;
printf("Enter voltage drop:");
// read voltage drop from user
scanf("%lf",&vr1);
// print voltage drop
printf("voltage drop is:%0.2lf",vr1);
return 0;
}
Output:
Enter voltage drop:200.4
voltage drop is:200.40
Mediocre skills required.
Answer:
C. Unclustered index has the same ordering of data records as that of the data entries in the database
Explanation:
Indexes are used to split up queries in an SQL server or database management system DBMS.
There are two types of indexes namely clustered indexed and unclustered indexes.
Clustered indexes define the order in which data is stored in a table while unclustered index does not sort the order in a table.
In an unclustered index, the data table and the index are stored in different places, they are easy to maintain and update since they do not follow a particular order and there can be several indexes in a data file since the data table is stored differently from the index file.
So, all the other options except C are features of unclustered indexes since unclustered index does not have the same ordering of data records as that of the data entries in the database.
So, C is the answer.
<span>The fourth generation of computers was marked by the introduction of microprocessors. </span>