PLEASE ANSWER CORRECTLY Which type of loop is best in each situation?

for or while ? : You know ahead of time how many passes you wish to make through a loop.

for or while ? : You do not know ahead of time how many passes you wish to make through a loop.

Match the personality traits with their description

Jason works as an accountant in a department store. he needs to keep a daily record of all the invoices issued by the store. which file naming convention would him the most? a)give the file a unique name b)name the file in yymmdd format c)use descriptive name while naming the files d)use capital letters while naming the file

Which two technologies support the building of single-page applications?