Final answer:
The subject is Computers and Technology, and it is a College level question. An update method and delete method in MongoDB are used to query for and change/delete documents from a specified MongoDB database and collection. JSON format is returned if successful and MongoDB error message if there is an error.
Step-by-step explanation:
The subject of this question is Computers and Technology and it is a College level question.
An update method in MongoDB is used to query for and change documents from a specified MongoDB database and collection. The input arguments to the function should be the key/value lookup pair to use with the MongoDB driver find API call. The last argument to the function should be a set of key/value pairs in the data type acceptable to the MongoDB driver insert API call.
A delete method in MongoDB is used to query for and remove documents from a specified MongoDB database and collection. The input arguments to the function should be the key/value lookup pair to use with the MongoDB driver find API call.
If successful, both methods should return the result in JSON format. Otherwise, if there was an error, MongoDB will return an error message in JSON format.