Is this right or not?

What a backup plan that you have created in a event you encounter a situation

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

Q-1 which of the following can exist as cloud-based it resources? a. physical serverb. virtual serverc. software programd. network device