The correct answer is D. Both (A) and (B).
A network is a group of computers that are connected together so that they can share information and resources. There are many different types of networks, but they all have some things in common. All networks have nodes, which are the individual computers that are connected to the network. All networks also have a topology, which is the way that the nodes are connected to each other.
Download is the process of transferring data from a remote computer to a local computer. Node is a computer or device that is connected to a network. Star topology is a network topology in which each node is connected to a central hub or switch. Point-to-Point topology is a network topology in which two nodes are connected directly to each other.
In a star topology, all of the nodes are connected to a central hub or switch. This is the simplest type of network topology, and it is often used in small networks. In a point-to-point topology, two nodes are connected directly to each other. This type of topology is often used for long-distance connections, such as between two buildings or two cities.
Download is a common activity on networks. When you download something, you are transferring data from a remote computer to your local computer. This can be done for many different purposes, such as to install software, to view videos or music, or to read email.
Nodes are the basic building blocks of networks. They are the computers or devices that are connected to the network. Nodes can be anything from personal computers to servers to smartphones.
Topology is the way that the nodes in a network are connected to each other. There are many different types of topologies, but the most common are star, bus, and ring.
I hope this helps!