The answer is C) PCIe graphics adapter, because it is not required for the computer to work.
In general, synchronous communication means you have to wait for the answer all the time. The programming logic is simpler, but the cost that you spend a lot of time waiting.
If the options are:
<span>a. The people communicating don't need to be online at the same time.
b. There is lag time in the communication.
c. The communication occurs in real time.
a is false, you do need to be online to receive the message
b is true, typically you continue only after an acknowledgement
c is true, you wait for acknowledgement that occurs in real time (not necessarily fast though)</span>
Answer War Chalking
Explanation: War chalking is the technique for presenting the WiFi network publicly. This signifies about the WiFi is present but not describes the manner of it , that is whether it is open connection or closed connection.
It can be used by the people in general as well as hackers . Hackers usually tend to attack and hack its security that is present.Hackers then use the WiFi network is then used for their own work after being hacked.
Answer: a sentinel value
Explanation:
a sentinel value is a value that is used as a condition to end the program. notice that it says "enter -1 to end"
