Answer to the question no-01
Link-list When creating a new node we need to name the pointer variable, which is called temp. Because when we allocate memory when creating a new node and calling a temp, the previous node repeatedly calls a pointer variable called a tempSo, I will not be able to create new nodes and enter data into them. So we have to change the name of the pointer variable temp when creating a new node in the link-list.
Answer to the question no-02
The meaning of a null to the address part of a node indicates that the node is not linked up with any other node next to it. So this node will not point to any next node.The node is the last node and not linked with any node.