What makes Key-Value NoSQL databases powerful for basic CRUD operations?

They are represented as a hashmap.

They shard easily across nodes.

They are atomic for key operations.

Which use case would be a poor choice for a document type NoSQL database?

Operational data sets for a web app

What is a characteristic of column-based NoSQL databases?

Rows in column families can share all, a subset, or none of the columns.

Columns are grouped together in families because they are often accessed individually.

Rows in column families are required to share the same columns.

Rows in column families share a common key or identifier.

Working with MongoDB is easy because ____________

It allows you to focus on what data you are writing and how you are going to read it.

It allows you to share data in a relational way only.

You need to first create the schema and the table structures that will hold your data.

You need to alter your tables if you decide to store an additional field.

How is data stored in a MongoDB database?

Data is stored in key-value pairs

Data is stored in rows and columns

What does it mean when we say that MongoDB follows a code-first approach?

There are no complex table definitions so you can start writing your first data as soon as you connect to your MongoDB database.

It allows you to use third-party frameworks to give you read and write operations.

You can store unstructured data.

You’re ready to work on your database as soon as your table design is created.

MongoDB is schemaless. What does that mean?

MongoDB does not require that you create the schema and the table structures before writing the data.

That you can only store structured data in MongoDB.

The schema is already created, so all you need to do is to create the table structures that will hold your data.

With MongoDB, you don’t need to alter your tables to store additional fields.

The “Many Sources One View” use case of MongoDB suggests that __________

MongoDB can ingest different types of data from different sources and consolidate it into one view for all data.

MongoDB can store data that is of different types and formats.

MongoDB can collect vast amounts of data.

MongoDB can store data collected from multiple sources as long as they are the same format.

Which of the following statements are true about data modeling using MongoDB? (Select one.)

MongoDB will help you iterate on the schema designs of your models throughout your application's lifecycle.

MongoDB is schema-less so you should not worry about designing a schema for your models.

MongoDB should only be used for unstructured datasets.

Which of the following statements are true about MongoDB documents? (Select all that apply.) (Select all that apply.)

MongoDB documents have a flexible schema.

MongoDB documents are stored as BSON documents.

MongoDB documents within a collection must have the same fields.

Which of the following phases are included in our data modeling methodology for MongoDB? (Select all that apply.)

Identifying the relationships between pieces of information.

Identifying the workload of the system.

Applying schema design patterns.

Which of the following are use cases in which you should model your data for performance rather than simplicity? (Select all that apply.)

It is expected that the solution will be designed with only 10 shards.

The application is being developed by 100 engineers.

There is not an applicable design pattern to the solution.

Select the statements that together help build the most complete definition of the MongoDB database: Check all answers that apply:

The MongoDB database is an organized way to store and access data.

MongoDB is a No5QL database that uses documents to store data in an organized way.

MongoDB database organizes documents in rows and columns.

MongoDB's database uses tables of related data.

What does "it" do in the mongo shell?

Iterates through the cursor results

it is not a mongo shell command

Warns about imminent termination

In MongoDB how does a document relate to a collection?

Collections consist of one or many documents.

Documents are made up of collections.

Collections are documents that are organized in rows and columns.

Collections are tables of documents and other collections.

Which of the following statements are true about the mongo shell?

It is a fully functioning JavaScript interpreter

It allows you to interact with your MongoDB instance without using a Graphical User Interface

mongo shell automatically returns an ordered list of results

In a MongoDB Document what is the role of fields and values?Check all answers that apply:

A field is a unique identifier for a specific datapoint.

Each field has a value associated with it.

Values do not have to be attached to fields, to and can be stand alone data points.

BSON is a binary representation of JSON documents

BSON is a Best Script Object Notation

BSON is a binary representation of any file format.

How is data stored in e MongoDB database?

Data is stored in rows and columns

Data is stored in key-value pairs

The Collections screen displays ... for each collection in the selected database :(select two)

number of documents in the collection

Write command to add a new entry to the "articles" collection. The record should consist of the following properties: name: "New entry", author: "Admin", views: 50, anons: *Announcement text" P S: Do not change the order of adding data.

db.articles.insert( {name: "New entry", author: "Admin", views: 50, anons: "Announcement text"} )

db.articles.insert( {name: "New entry", author: "Admin", views: 30, anons: "Announcement text"} )

db.articles.insert( {name: "New ", author: "Admin", views: 50, anons: "Announcement text"} )

db.articles.insert( {name: "New entry", author: "User", views: 50, anons: "Announcement text"} )

NOSQL

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the four main categories of NoSQL databases?

Key-Value, Distributed, Column, Graph

Key-Value, Document, Common, Graph

Key-Value, Document, Column, Graph

Key-Value, Relational, Column, Graph

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the fully managed service model that many NoSQL databases now leverage?

Software-as-a-service (SaaS)

Network-as-a-service (NaaS)

Database-as-a-service (DBaaS)

Platform-as-a-service (PaaS)

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the most common trait among all NoSQL databases?

They are all open source

They are all non-relational

They are all relational

They are all document-based

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which document formats are typically used for documents stored in a document-based NoSQL
database?

XML and CSV format

PDF and JSON format

CSV and JSON format

XML and JSON format

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which category of NoSQL databases is it recommended not to shard data on?

Key-Value NoSQL databases

Column-based NoSQL databases

Document-based NoSQL databases

Graph NoSQL databases

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What common trait does the NoSQL family of databases share?

Exclusion of SQL

Tabular style

Technology

Non-relational

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What may be the most common reason to use a NoSQL database?

Security

Consistency

Scalability

Availability

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NOSQL

What are the four main categories of NoSQL databases?

What is the name of the fully managed service model that many NoSQL databases now leverage?

What is the most common trait among all NoSQL databases?

Which document formats are typically used for documents stored in a document-based NoSQLdatabase?

Which category of NoSQL databases is it recommended not to shard data on?

What common trait does the NoSQL family of databases share?

What may be the most common reason to use a NoSQL database?

What makes Key-Value NoSQL databases powerful for basic CRUD operations?

Which use case would be a poor choice for a document type NoSQL database?

What is a characteristic of column-based NoSQL databases?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

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Which document formats are typically used for documents stored in a document-based NoSQL
database?