What is a benefit of using a client/server network? Cheap to maintain
Easy to install
Has a central, powerful computer
Unable to share files

Has a central powerful computer

Explanation:

When operating a client - server network, a certain access mediun is created such that clients can access information, materials and services from a central computer, this poses great advantage in the area of security and control. Clients would be able to gain access from this central computer using either a local or wide area network. The accessibility provided through this powerful, central computer allows the the network to monitor what actions are being performed and make appropriate restrictions on the network, hence, preventing the invasion of malware and viruses. Hence, the central control is a great feature of a client - server network.

the major difference between the two is the objective and the reward of the game. candy crush has a puzzle theme with the objective of meeting a specific quota of points or objects, you are able to gain access to the next level and compete with peers on the process. on duolingo the objective is rather different, you are given sets of questions for you to answer for you to move to the next level and as for the reward, you are able to learn available language as this is an app developed to teach the user about other languages.