Shell Help Commands — MongoDB Technical Interview Questions & Answers

help, db.help() and collection.help().

Shell Help Commands

  • Simple meaning: help, db.help(), db.students.help() print what you can call.
  • How to use: type help at the prompt. Collection methods: db.students.help().
  • Try this: db.help() after use college.
  • Common mistake: Googling only — the in-shell help lists methods for your version.
  • Interview tip: You can discover methods from the shell itself.

Technical Interview Tip: help is the first command if you are stuck.

Code Examples for Shell Help Commands

Shell Help Commands — working example

mongosh "mongodb://localhost:27017/prep_pilot"
const ada = db.users.findOne({ email: "ada@example.com" })
ada.skills
db.users.find({ city: ada.city })

Shell Help Commands — mongosh is the modern MongoDB shell; you can store query results in variables.

How to Explain Shell Help Commands to an Interviewer

How do you list shell methods?

help / db.help() / collection.help()