1. When you are debugging a Node application, it can be useful to print out the full description of an object in JSON format. The util. debug function will only print a string value. Review the Node...

1. When you are debugging a Node application, it can be useful to print out the full description of an object in JSON format. The util. debug function will only print a string value. Review the Node documentation to find a way to do this.
2.
The MongoDB database that stores your analytics data has two collections: last and agg. Both of these collections will be very large, probably with millions of entries. Confi gure an appropriate set of MongoDB indexes for these collections. For help, read this page of the MongoDB

documentation: http://www.mongodb.org/display/DOCS/Indexes.