Which of the following is NOT a mobile embedded operating system?

The _______ command can be used to remove the hidden attribute from a file

Fill in the blank(s) with correct word

In a ping response packet, what does the TTL field indicate?

A. The amount of time lost in the transit of the packet B. How many hops the packet can go through before the packet is expired and discarded. C. Indicates how long the IP address will be in use by the target computer D. Indicates how much time was spent looking for the IP address on the network.