Download mongodb using tar file: 
https://www.mongodb.com/try/download/community

Download MongoDB Shell(mongosh) and MongoDB Command Line Database Tools tar file: 
https://www.mongodb.com/try/download/database-tools?tck=docs_databasetools

mongodb-tools-x86_64.tar.gz  - tar file contains mongosh(2.1.5) and mongodb database tools(100.9.4)
mongosh tar is for using the mongodb shell
mongodb-tools is for using the database tools like database dump,restore etc.
mongodb-linux-x86_64.tar.gz - tar file of mongodb(7.0.6)
c7_mongodb-linux-x86_64.tar.gz - tar file of mongodb for centos7 and cloudlinux7