Both Z-Wave and Zigbee use a mesh networking topology to facilitate communication in homes, yet both also have __________ that act as the network interconnect.

What is the output of the following code segment?

int ctr, x = 5; for (ctr = 0; ctr < 3; ctr++) { x = x + ctr; cout << x << “ “; } cout << ctr;

What is the value of sum after execution of this code fragment?

``` sum = 0; for (int i = 0; i < 3; ++i) sum += m[i][2-i]; ``` a. 20 b. 30 c. 15 d 39