# Mongo - Monitoring

## Lesson Objectives
1. Explain explain
1. Explain stats
1. Explain profile

## Explain Explain
1. `db.employees.find().explain()`

## Explain stats
1. `db.stats()`
1. `db.collectionName.stats()`

## Explain profile
1. `db.setProfilingLevel(2);`
1. `db.employees.find();`
1. `db.system.profile.find()`