Introduction to mongodb coursera answers week 1

Introduction to mongodb coursera answers week 1


Introduction to mongodb 
Week 1 Quiz answers 



Creating an Atlas Free-free Cluster

Q1) How much will our Atlas Cluster cost per month ?

  • 10 USD
  • 5 USD
  • 1 USD
  • 20 UJD
  • Nothing lt's free.



Getting Data into MongoDB

Q1) How many documents were imported by our mongo import command ?

  • 40,600
  • 46,000
  • 44,800
  • 46,014
  • 40,001



How to Connect to Your Atlas Cluster from Python

Q1) What elements of the provided connection string do yo need to change in order to successfully connect to MongoDB form Python?

  • password
  • authorization source
  • username
  • cluster name
  • database



Incremental Improvements with $sort and $sortByCount

Q1) What are the two components of a sort expression?
  • list
  • count
  • size
  • field
  • direction



Intro to the Aggregation Framework

Q1) Which of the following are true of the aggregation pipeline?

  • Pipelines use a MongoDB collection as input.
  • Aggregation pipelines are similar to Linux shell pipelines.
  • You may include a particular type of stage in an aggregation pipeline only once.
  • An individual stage within a pipeline performs many different types of tasks.
  • The task a pipeline stage performs is tunable.




Using Compass to View Data in an Atlas Cluster

Q1) What is the runtime of the first document listed in our collection?
  • 6 min
  • 23 min
  • 1 min
  • 14 min
  • 103 min



Working with Data in MongoDB

Q1) Which of the following accurately describe PyMongo?
  • A Python library
  • A client library for connecting to MongoDB
  • A library that supports the MongoDB aggregation framework and query language
  • A hosting platform for MongoDB
  • A programming language



Your First Aggregation (Using $group)

Q1) What data structure is used to define expressions in the aggregation framework?
  • list
  • string
  • dictionary
  • tuple




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3 Comments

  1. What is the runtime of the first document listed in our collection?

    ReplyDelete
  2. The notebook queries MongoDB to find all trips between 5 and 10 minutes in duration that start at station 216.

    ReplyDelete