MongoDB/NOSQL EXAM WITH COMPLETE SOLUTIONS 100% CORRECT

MongoDB/NOSQL EXAM WITH COMPLETE
SOLUTIONS 100% CORRECT


JSON - ANSWER JavaScript Object Notation



Horizontal scalability - ANSWER unstructured and semi-structured data: log

files, blogs, tweets, multi-media



vertical scalability - ANSWER structured data: business transactions

(financial transactions, medical records systems,

university and academic records systems):

Structured and organized data; SQL

dynamic

table one instancee of MongoDB can host multiple independeent db can hold its own db
- ANSWER Collection



Column / Field - ANSWER Key



Value - ANSWER Value



Row/Record - ANSWER Document / Object



object - ANSWER an entity that may be utilized in

programming; can be a value,

variable, function, or data structure

, Object ID - ANSWER Any MongoDB object or

document is supposed to have an Object ID

which is unique



_id - ANSWER every document has a unique _id

document - ANSWER single unit of data {"key":"value"}



keys rules - ANSWER cannot be null - null indicates the end of a key



. and $ - ANSWER reserved



no duplicate for a single document can not - ANSWER contain duplicates

to insert into your database - ANSWER <database name>

db.users.help() - ANSWER to get documentation

import files - ANSWER mongoimport --db your_db_name --collection
--your_collection_name --host class-mongodv.cims.nyu.edu --username your_username
--password your_password --type json --file your_json_file_name

db

collection

host

username

password

type



IF CSV --headerline "(CSV file must contain the field names as the first line of the file.)"



file