CosmoDB

Question 1

What is Azure Cosmos DB?

Answer 1

Azure Cosmos DB is a globally distributed, multi-model database service designed to provide high availability, low latency, and scalability.

Question 2

True or False: Azure Cosmos DB supports only SQL as a query language.

Answer 2

False

Question 3

Name three data models supported by Azure Cosmos DB.

Answer 3

Document, key-value, and graph.

Question 4

What consistency models does Azure Cosmos DB offer?

Answer 4

Strong, bounded staleness, session, consistent prefix, and eventual consistency.

Question 5

Fill in the blank: Azure Cosmos DB is designed for __________.

Answer 5

global distribution.

Question 6

What is the maximum size of a single item in Azure Cosmos DB?

Answer 6

2 MB

Question 7

True or False: Azure Cosmos DB can automatically scale throughput.

Answer 7

True

Question 8

What is the purpose of the Azure Cosmos DB emulator?

Answer 8

To allow developers to build and test applications locally without needing an Azure subscription.

Question 9

Which API can be used to interact with Azure Cosmos DB in a SQL-like manner?

Answer 9

SQL API

Question 10

What is the default consistency level in Azure Cosmos DB?

Answer 10

Session consistency.

Question 11

How does Azure Cosmos DB ensure high availability?

Answer 11

By replicating data across multiple regions.

Question 12

What feature does Azure Cosmos DB provide for automatic indexing?

Answer 12

Automatic indexing of all data without requiring schema or secondary indexes.

Question 13

What is the term for the ability of Azure Cosmos DB to scale read and write operations across multiple regions?

Answer 13

Global distribution.

Question 14

True or False: Azure Cosmos DB can only be accessed through the Azure portal.

Answer 14

False

Question 15

What is the maximum throughput that can be provisioned for a container in Azure Cosmos DB?

Answer 15

Up to 1,000,000 RU/s.

Question 16

What does RU/s stand for in the context of Azure Cosmos DB?

Answer 16

Request Units per second.

Question 17

Fill in the blank: Azure Cosmos DB allows for __________ scaling.

Answer 17

horizontal.

Question 18

What is the purpose of partitioning in Azure Cosmos DB?

Answer 18

To distribute data across multiple servers for scalability and performance.

Question 19

What types of applications benefit most from Azure Cosmos DB?

Answer 19

IoT applications, real-time analytics, and global applications.

Question 20

True or False: You can run Azure Cosmos DB on-premises.

Answer 20

False

Question 21

What is the process to create a new Azure Cosmos DB account?

Answer 21

Use the Azure portal, Azure CLI, or Azure SDKs.

Question 22

Name one key feature of Azure Cosmos DB’s multi-model capability.

Answer 22

It allows users to choose between different APIs such as SQL, MongoDB, Cassandra, Gremlin, and Table.

Question 23

What is Azure Cosmos DB’s SLA for availability?

Answer 23

99.999% availability.

Question 24

What is the purpose of the change feed in Azure Cosmos DB?

Answer 24

To provide a persistent record of changes made to items in a container.

Question 25

What is the maximum number of regions an Azure Cosmos DB account can be distributed across?

Answer 25

Up to 30 regions.

Question 26

True or False: Azure Cosmos DB supports only one API per account.

Answer 26

False

Question 27

What is the mechanism used by Azure Cosmos DB for conflict resolution in multi-master replication?

Answer 27

Last write wins or custom conflict resolution logic.

Question 28

Fill in the blank: Azure Cosmos DB supports __________ consistency levels.

Answer 28

five.

Question 29

What is the role of a container in Azure Cosmos DB?

Answer 29

A container is the unit of scalability and is used to store items.

Question 30

What does the term 'geo-replication' refer to in Azure Cosmos DB?

Answer 30

The ability to replicate data across multiple geographic regions for disaster recovery and performance.

Question 31

Which API in Azure Cosmos DB is best suited for graph data?

Answer 31

Gremlin API.

Question 32

True or False: Azure Cosmos DB can only store structured data.

Answer 32

False

Question 33

What is the benefit of using Azure Cosmos DB's serverless option?

Answer 33

You only pay for the resources used, making it cost-effective for variable workloads.

Question 34

What type of data does the Table API in Azure Cosmos DB primarily handle?

Answer 34

Key-value pairs.

Question 35

What is the purpose of the Azure Cosmos DB SDKs?

Answer 35

To facilitate the development of applications that interact with Azure Cosmos DB.

Question 36

Fill in the blank: Azure Cosmos DB can be integrated with __________ for analytics.

Answer 36

Azure Synapse Analytics.

Question 37

What is the importance of the partition key in Azure Cosmos DB?

Answer 37

It determines how data is distributed across physical partitions.

Question 38

True or False: Azure Cosmos DB is designed for low-latency access.

Answer 38

True

Question 39

What is the significance of the 'Throughput' setting in Azure Cosmos DB?

Answer 39

It defines the number of request units allocated to a database or container.

Question 40

What does the term 'multi-region writes' mean in Azure Cosmos DB?

Answer 40

The ability to perform write operations in multiple regions simultaneously.

Question 41

What type of consistency is the most strict in Azure Cosmos DB?

Answer 41

Strong consistency.

Question 42

Fill in the blank: Azure Cosmos DB supports __________ data replication.

Answer 42

multi-master.

Question 43

What is the primary benefit of using the MongoDB API with Azure Cosmos DB?

Answer 43

Compatibility with existing MongoDB applications without code changes.

Question 44

True or False: Azure Cosmos DB can handle both transactional and analytical workloads.

Answer 44

True

Question 45

What is the purpose of the Azure Cosmos DB Data Migration tool?

Answer 45

To assist in migrating data from other databases to Azure Cosmos DB.

Question 46

What is the function of the Azure Cosmos DB Resource Manager?

Answer 46

To manage and configure Azure Cosmos DB resources.

Question 47

Fill in the blank: Azure Cosmos DB allows for __________ backup and restore.

Answer 47

automated.

Question 48

What is the Azure Cosmos DB pricing model based on?

Answer 48

Provisioned throughput and storage.

Question 49

Which API in Azure Cosmos DB is designed for document storage?

Answer 49

SQL API.

Question 50

What is the purpose of the Azure Cosmos DB analytical store?

Answer 50

To enable fast analytical queries on operational data.

Question 51

True or False: Azure Cosmos DB can only be accessed over the internet.

Answer 51

False

Question 52

What is the primary use case for the Cassandra API in Azure Cosmos DB?

Answer 52

To support applications built on Cassandra with minimal changes.

Question 53

What is the main advantage of using Azure Cosmos DB for IoT applications?

Answer 53

It can handle high-velocity data streams with low latency.

Question 54

Fill in the blank: Azure Cosmos DB provides __________ for monitoring and diagnostics.

Answer 54

metrics.

Question 55

What is the role of the Azure Cosmos DB account in the Azure ecosystem?

Answer 55

It acts as a container for databases and resources.

Question 56

True or False: Azure Cosmos DB supports SQL-like queries across all data models.

Answer 56

False

Question 57

What is the significance of the 'Change Feed Processor' in Azure Cosmos DB?

Answer 57

It allows applications to listen to changes in real-time.

Question 58

What type of database is Azure Cosmos DB classified as?

Answer 58

NoSQL database.

Question 59

Fill in the blank: Azure Cosmos DB can be configured for __________ disaster recovery.

Answer 59

multi-region.

Question 60

What is the primary benefit of using Azure Functions with Azure Cosmos DB?

Answer 60

To create serverless applications that respond to data changes.

Question 61

True or False: You can use Azure Cosmos DB for both online and offline applications.

Answer 61

True

Question 62

What is the maximum number of partitions that can be created in Azure Cosmos DB?

Answer 62

Unlimited.

Question 63

What feature does Azure Cosmos DB provide for data redundancy?

Answer 63

Automatic data replication.

Question 64

True or False: Azure Cosmos DB requires a fixed schema.

Answer 64

False

Question 65

What is the main purpose of the Azure Cosmos DB SDK for .NET?

Answer 65

To enable .NET developers to interact with Azure Cosmos DB easily.

Question 66

Fill in the blank: Azure Cosmos DB supports __________ based access control.

Answer 66

role.

Question 67

What is the main advantage of using Azure Cosmos DB's serverless database option?

Answer 67

Cost savings for unpredictable workloads.

Question 68

True or False: Azure Cosmos DB can handle both structured and unstructured data.

Answer 68

True

Question 69

What does the term 'item' refer to in Azure Cosmos DB?

Answer 69

An individual record stored in a container.

Question 70

What is the key feature of the Azure Cosmos DB Graph API?

Answer 70

It allows for querying and managing graph data structures.

Question 71

Fill in the blank: Azure Cosmos DB provides __________ for developers to test their applications.

Answer 71

emulators.

Question 72

What is the purpose of the Azure Cosmos DB integration with Azure Logic Apps?

Answer 72

To automate workflows based on data changes.

Question 73

True or False: Azure Cosmos DB provides built-in support for geospatial data.

Answer 73

True

Question 74

What is the primary function of the Azure Cosmos DB REST API?

Answer 74

To provide a programmatic interface for interacting with Azure Cosmos DB.

Question 75

What is the role of Azure Cosmos DB in a microservices architecture?

Answer 75

To serve as a scalable and flexible database solution for individual services.

Question 76

Fill in the blank: Azure Cosmos DB is designed to handle __________ workloads.

Answer 76

high-throughput.