________ is the virtualization of network functions by implementing these functions in software and running them on virtual machines.

Appending a node means adding it to the end of a list, and __________ a node means putting a new node in the list, but not necessarily at the end.

a. concatenating b. popping c. clamping d. inserting e. None of these

After the following statements execute, what are the contents of matrix?int matrix[3][2];int j, k;for (j = 0; j < 3; j++)   for (k = 0; k < 2; k++)     matrix[j][k] = j + k; 

A. 0 0 1 1 2 2 B. 0 1 2 3  4 5 C. 0 1 1 2  2 3 D. 1 1 2 2  3 3