Which are the nodes and links that form a part of a computer network?

while you choose a topology, you should consider the types of on the network and the types of in use.

answers for first space - computers, wires, servers
answers for second space - printers, cables, keyboard

In a network topology, nodes (i.e., computers, routers, printers, or other devices) are connected to a LAN via links (wires, example, optical fiber and twisted pair cables). In addition to how nodes are physically interconnected with one another, a network topology tries to explain how data is transmitted logically through network links.  

While choosing a network topology, you should consider the current network, budget limitations, need for reliability, size of the network, and chief among them, if network expansion is likely to happen. In this case, it is highly recommended to consider the type of equipment the network requires. The availability of the equipment required will influence the type of topology to go for. The cable type is also a key consideration. The most common type of Ethernet cables in use today is the UTP and STP.

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.