Answer:
Firewall
Explanation:
A Firewall prevents outsiders from accessing corporate information the user does not want others to see. It could be in the form of a hardware or a software.
Most companies use this in order to keep confidential informations from the public. This is very important to prevent unauthorized access which could lead to different types of problems in the long run.
Answer:
The debugged program is as follows:
A=2
B=2
For I=1 to 10
PRINT A
TEMP = A
A=B
B=TEMP+A
NEXT I
END
Explanation:
First, the value of B should be changed to 4 (because the second term of the sequence is 2
Next, change Display to Print because Q-basic uses the print keyword to display output
The sequence is not properly generated. So, I update that part of the program to:
<em>For I=1 to 10
</em>
<em>PRINT A
</em>
<em>TEMP = A
</em>
<em>A=B
</em>
<em>B=TEMP+A
</em>
<em>NEXT I
</em>
<em />
Lastly, the loop is controlled by variable I (not X).
So change NEXT X to NEXT I
Answer:
See Explaination
Explanation:
public class testscope
{
//start of main function
public static void main(String[] args)
{
//varible declration
int i;
int x;
//loop for 10 times
for(i=0; i<10; i++)
{
//initialize value of x to 10
x = 10;
}
//the scope of variable x is visible outside of for loop
System.out.println("The value of x is: "+x);
}
}
See attachment for sample output
nb:
You can clearly see in the output of Java program the value of x is not printed and program return errors. It means the variable x declared inside for loop does not has scope outside the for loop.
Answer:
RFID scanning or Barcode reader
Explanation
Smart refrigerators have inbuilt RFID scanning technology that help monitor the stock that is inside your fridge. Once you pass your items through the inbuilt RFID scanner in the fridge, the barcode of your items is cross-referenced with a database and given a unique tag for identification. This technology helps detect and track the stock that is inside your fridge and when you start running low, the RFID can be triggered to send a reminder as a notification on your email or a text message.
A. (pie chart) - correct answer
