mongoDB

• MongoDB is a free and open-source cross-platform
• It's a document-oriented database program
• Its Written In C++, C and JavaScript
• Its classified as a NoSQL database program 

Features In mongoDB

• High Performance 
• Indexes support faster queries and can include keys from embedded documents and arrays.
• High Availability
• Data redundancy
• Automatic Scaling
  

Install MongoDB Community Edition on Ubuntu

1. Import the public key used by the package management system.
• In Terminal type this
• sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6
2. Create a list file for MongoDB
• For Ubuntu 16.04
• echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
3. Reload local package database
• sudo apt-get update
4. Install the MongoDB packages
• Install the latest stable version of MongoDB
• sudo apt-get install -y mongodb-org
5. Start MongoDB
• sudo service mongod start

for more Help: https://docs.mongodb.com/manual/tutorial/install-mongodb-on-ubuntu/