Answer: streams can send data in only one direction either input or output.
Explanation:
An application must have two network streams in order to send and receive data.
for example if we want to send data from A to B we must have one stream similarly in order to receive data from B to A we must have another network stream.
Answer:
User application
Explanation:
A user application is a program that is created by using a standard software that is adjusted to the user's needs that can't be fulfilled by an existing system. According to this, the answer is that a user application utilizes standard business software, such as Microsoft Word or Microsoft Excel, which has been configured in a specific manner to enhance user productivity.