Answer:
Metrical task system algorithm is the online algorithm that is used for organizing the online problems like k-server issues, paging issues etc.This task system works in the form of metrics to decrease the complete cost experienced due to processing of the operation and analyzing the competition.
It can be used for the online shopping project for the analyzing the comparison between the performance on basis of online and offline trends and then optimization can take place according to the the results.
Front-end the part with which the user interacts.
usually people who write this are called layout designers what languages are used (Html, css, js)
Beck-end The northern part is the structure of the site due to which it works, this includes the DBMS, logic, etc. which languages will be used(python, php, java)
People who can do both are called: full stack developr
I think this answer, "<span>Upload all existing documents to a cloud-based program," is correct. Hope I helped!!</span>