What is an "immediate preemptive scheduler"?

Develop a function to create a document in the mongodb database “city” in the collection “inspections.” be sure it can handle error conditions gracefully. a. input -> argument to function will be set of key/value pairs in the data type acceptable to the mongodb driver insert api call b. return -> true if successful insert else false (require a screenshot)

Pl i need the answer now ! which one of the following is considered a peripheral? a software b mouse c usb connector d motherboard

Ais a built in formula in spread spread a is any math process such as addition or subtraction. options are function and operation