Question

What is the function of the basic activity "Join"?

A. It waits for one of the incoming data items to arrive.
B. It waits for all incoming data items to arrive.
C.It checks the result of a condition and then chooses one of incoming data items.
D.It must be used in pair with a Fork.

Answer 1

The function of the basic activity "Join" is to wait for all incoming data items to arrive before proceeding.

Step-by-step explanation:

The function of the basic activity "Join" is to wait for all incoming data items to arrive before proceeding. This means that the Join activity will only continue once it has received all the required data items. It is commonly used in parallel programming or in distributed systems where multiple tasks or processes need to synchronize their execution.

For example, let's say we have three parallel tasks running simultaneously. Each task generates some data, and the Join activity is used to combine the data generated by all three tasks. The Join activity will only proceed once it has received all the data items from all three tasks.

Therefore, the correct answer is B. It waits for all incoming data items to arrive.