A. yes
!= means not equal, so if you substitute, you get if(5 is not equal to 7), which renders True and executes
Answer: HUB
Explanation:
A Hub is a network device, that acts only in layer 1 (Physical layer) forwarding all traffic that reaches to the input port, to all output ports at once, without processing the received data in any way that could modify them.
It behaves like it were a multiport repeater (which has only one output port).
True
You can only do it ascending because you will get confused