LinkedIn MongoDB

  Linkedin MongoDB Quiz answers

Which command adds members to the replica set from the MongoDB shell?

• replicaSetAdd("<hostname>")
• rs.insert("<hostname>")
• rs.add("<hostname>")
• replica.add("<hostname>")

Linkedin MongoDB Quiz

Which MongoDB shell command should you use to back up a database?

• mongodump
• backup
• mongobackup
• Restore

Linkedin MongoDB skill assessment test 

Which MongoDB shell command should you use to back up a database?

•  backup
•  restore
•  mongobackup
•  mongodump

MongoDB Linkedin assessment

Which shell query displays all citizens with an age greater than or equal to 21?

• db.citizens.find('WHERE age >= 21')
• db.citizens.where('age >= 21')
• db.citizens.find({age: {$gte: 21}})
• db.citizens.select('WHERE age >= 21')

MongoDB Linkedin Quiz

What does a MongoDB collection consist of?

• fields
• data
• rows
• documents

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