Advanced MongoDB Quiz – Can You Do It In Less Than 4 Min?

Name the collections used by MongoDB to store GridFS data?

Which command is not supported by sharded collection?

Consider the following collection:
{
_id: 1,
product: “345678”,
variations: [
{ size: “S”, price: 100 },
{ size: “M”, price: 800 }
]
}
What will the below query return?
db.products.find( { product: “345678” },
{ variations: { $elemMatch: { size: L } } } )

How can you check the amount of mapped memory that mongod is using?

In how much time does MongoDB reports its triggered page faults as the total number of page faults?

Using which operator we can access the query field of documents within a system profile?

Which of the following will return information on the query plan for aggregate function?

db.collection.explain() runs in ___________ verbosity mode.

Using what can you avoid repetition of data in MongoDB schema?

Normalized data models describe relationships using ___________ between documents

What operators are atomic on document level?

MongoDB stores times in _____ by default, and will convert any local time representations into this form.