When using a split form, the two views display data from the same source and are synchronized with each other every five minutes

Which protocol is used for diagnostics and provides error messages?

a. TCP b. IP c. UDP d. ICMP

Assume a linked list is made of nodes from a Node struct, which has an info data member and a next data member. A start pointer points to the beginning of the linked list, which has more than one node. To access the info in the second node of the linked list, we should use the code:

A. info->start->next B. start->info C. start->next->info D. start->next->next->info