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Answer:
Array: (a) All the messages a user has sent.
Variable: (b) The highest score a use has reached on the app. (c) A username and password to unlock the app.
Explanation:
An array generally has more than one value whereas a variable can only contain a single value at any particular point in time. In addition, a variable has a limit whereas an array does not have any maximum limit. Therefore, it can be concluded that option (a) will be stored as an array while options (b) and (c) will be stored as variables.
Answer:
Root
Explanation:
Linux is an open source operating system which receives command from the user and communicates with the hardware, and in Linux the root directory is the top level directory that contains all other directory, it is not recommended to create files and folders in the root directory because the commands the user enters may change files that the operation system may depend on for usage.
