NAS(Network-attached storage) is the file storage in computer server which links to computer network. It is used by heterogeneous client or group of other various users to access files data.
It can retrieve data from shared folder storage in network.It can provide serving file feature through standard, hardware,configuration or software.
It provides high speed service of sharing and serving files, continuous work in faulty situation, easy configuration, simple accessing of data etc.
This is a complicated question because in theory, scores.insert can also add values, but I am sure that the only line of code that would work is scores.append(6,2)