Which of the following can provide a service.
An interactive server and A concurrent server can provide a service.
Concurrent Server: The server can be iterative, i.e. it iterates through each client and serves one request at a time. Alternatively, a server can handle multiple clients at the same time in parallel, and this type of a server is called a concurrent server.
An iterative server iterates through each client, handling it one at a time. A concurrent server handles multiple clients at the same time. The simplest technique for a concurrent server is to call the fork function, creating one child process for each client.
Concurrent Servers. Unlike a sequential server, a concurrent server has to be able to serve more than one client at a time. For example, a chat server may be serving a specific client for hours—it cannot wait till it stops serving a client before it serves the next one.
The TCP/IP protocol allows systems to communicate even if they use different types of network hardware. ... IP, or Internet Protocol, performs the actual data transfer between different systems on the network or Internet. Using TCP binding, you can create both client and server portions of client/server systems.