This question should be in physics so this is my answer in C&T format-go to a online shop and order one or the pieces then follow the instructions that will be given.
Internet cloud service that could be accessed by other devices with a certain password
Answer: Contracts
Explanation:
The contract is the mechanism which is basically used by the developers to follow the set of rules that is defined in the framework with the proper specification in the API ( Application programming interface).
The contract is the proper agreement between the two and more developers so that they must follow the rules that is mentioned in the agreement contract.
The contract is widely used in the software development process in which all the possible design requirement are mentioned according to the needs of the client.
Therefore, Contract is the correct option.
