Answer:
The role of test oracle is to determine if a test has passed or failed. Oracle compares the outputs of the system under a test, for a given test-case input, and the output(s) that should have. A test oracle works on specifying constraints on the output(s) for a set of inputs. An oracle could be:
- a program which tells if the output is correct.
- documentation that specifies the correct output for inputs.
- a human that can tell whether it is correct an output.
Answer:
public class TicTacToe //Defining TicTacToe class
{
char board[3][3] ; //Creating a 2D array instance variable
TicTacToe() //Constructor to initialize the array with " - "
{
for( int i = 0;i<3;i++) //Loop for the row of array
{
for(int j = 0;j<3;j++) //Loop for the column of array
{
Board[i][j] = '-'; //Assigning "-" in each cell
}
}
}
public char getter() //Defining getter() method to return the array
{
return Board; //returning the array
}
}
Answer:
To determine which book titles have been purchased by a customer and when the order shipped the following tables and fields would be used.
Table:
Fields
Table
Fields:
Table:
Fields:
Table:
Fields
BOOKS table contains field like title of the books, so this will help in finding which book titles have been purchased.
CUSTOMERS table keeps information about customers that purchasing an ordering the books. The customerno uniquely identifies each customer so that the order information can be found using the customerno of a specific customer.
ORDERITEMS keeps information about orders via orderno
ORDERS table will keep track about the shipment of orders. Orderno identifies each order, shipdate will help determine when an order is shipped.
Answer:
Encapsulating Security Payload (ESP)
Explanation:
Encapsulating Security Payload is also known as ESP, it is a protocol that exists within IPSec, it helps in determining the authentication, integrity and how confidential network pack data / Payload in IPV4 and IPV6 networks are.
ESP supplies messages /Payload encipher, it also helps in authenticating Payload as well as where it originated from in the IPSec protocol suite.
