Answer:
router.
Explanation:
Router is the main connection for a house network to the Internet, the firewall function is combined to the router. Every house network must have a firewall to protect their privacy.
The router provides the hardware firewall while the windows provides the software firewall.So the answer to this question is router.
Answer:
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
Explanation:
JFrame is the swing class that is used to display a frame object. The JFrame display contains an X button on the top right position which is used to turn off the display of the frame. However if we want to terminate the program on pressing the X button, we need to update the DefaultCloseOperation for the frame. JFrame provides a method ''setDefaultCloseOperation' for this purpose. When this method is called with the argument JFrame.EXIT_ON_CLOSE , it will cause the program to exit when the close button is pressed.
Answer:
z = a.c' + a.b.d' + b.c'.d'
Explanation:
The truth table for this question is provided in the attachment to this question.
N.B - a' = not a!
The rows with output of 1 come from the following relations: 01 > 00, 10 > 00, 10 > 01, 11 > 00, 11 > 01, 11 > 10
This means that the Boolean expression is a sum of all the rows with output of 1.
z = a'bc'd' + ab'c'd' + ab'c'd + abc'd' + abc'd + abcd'
On simplification,
z = bc'd' + ab'c' + ac'd' + ac'd + abc' + abd'
z = ac' + abd' + bc'd'
Hope this helps!
Every Excel formula begins with '=' (equality) sign.
Saving a newly created file
Select Save from the File menu.
Name the file.
