Develop Solutions That Use Cosmos DB 11

Question 1

What is the primary purpose of partitioning in Azure Cosmos DB?

a) To reduce the cost of storage
b) To optimize read and write throughput by distributing data evenly
c) To simplify the process of writing stored procedures
d) To increase the durability of stored data

Answer 1

b) To optimize read and write throughput by distributing data evenly

Question 2

What is the primary characteristic of a logical partition in Azure Cosmos DB?

a) It is physically separated across different SSD storage
b) It groups data with the same partition key together
c) It allows for cross-partition queries
d) It is limited to 10,000 RUs of throughput

Answer 2

b) It groups data with the same partition key together

Question 3

What is the primary limitation of a physical partition in Azure Cosmos DB?

a) It can only store up to 10 GB of data
b) It is limited to 10,000 RUs of throughput and 50 GB of storage
c) It cannot be changed once created
d) It requires manual configuration by the developer

Answer 3

b) It is limited to 10,000 RUs of throughput and 50 GB of storage

Question 4

What is the primary consequence of a hot partition in Azure Cosmos DB?

a) It reduces the cost of storage
b) It causes uneven data distribution and slows down queries
c) It simplifies the process of writing stored procedures
d) It increases the durability of stored data

Answer 4

b) It causes uneven data distribution and slows down queries

Question 5

What is the primary purpose of a partition key in Azure Cosmos DB?

a) To reduce the cost of storage
b) To group data logically for optimized query performance
c) To simplify the process of writing stored procedures
d) To increase the durability of stored data

Answer 5

b) To group data logically for optimized query performance

Question 6

What is the primary benefit of using a high cardinality partition key for write-heavy workloads in Azure Cosmos DB?

a) It reduces the cost of storage
b) It ensures even distribution of data across physical partitions
c) It simplifies the process of writing stored procedures
d) It increases the durability of stored data

Answer 6

b) It ensures even distribution of data across physical partitions

Question 7

What is the primary challenge of using a low cardinality partition key in Azure Cosmos DB?

a) It increases the cost of storage
b) It can lead to hot partitions and uneven data distribution
c) It simplifies the process of writing stored procedures
d) It increases the durability of stored data

Answer 7

b) It can lead to hot partitions and uneven data distribution

Question 8

What is the primary purpose of a synthetic partition key in Azure Cosmos DB?

a) To reduce the cost of storage
b) To group similar data together with a composite key
c) To simplify the process of writing stored procedures
d) To increase the durability of stored data

Answer 8

b) To group similar data together with a composite key

Question 9

What is the primary benefit of indexing in Azure Cosmos DB?

a) It reduces the cost of storage
b) It optimizes query performance by defining exact search locations
c) It simplifies the process of writing stored procedures
d) It increases the durability of stored data

Answer 9

b) It optimizes query performance by defining exact search locations

Question 10

What is the primary consequence of a cross-partition scan in Azure Cosmos DB?

a) It reduces the cost of storage
b) It causes queries to hit all partitions, leading to slower performance
c) It simplifies the process of writing stored procedures
d) It increases the durability of stored data

Answer 10

b) It causes queries to hit all partitions, leading to slower performance

Question 11

What is the primary limitation of changing a partition key in Azure Cosmos DB?

a) It cannot be changed once the container is created
b) It requires manual reconfiguration of physical partitions
c) It increases the cost of storage
d) It simplifies the process of writing stored procedures

Answer 11

a) It cannot be changed once the container is created

Question 12

What is the primary benefit of using a composite index in Azure Cosmos DB?

a) It reduces the cost of storage
b) It optimizes query performance for specific fields
c) It simplifies the process of writing stored procedures
d) It increases the durability of stored data

Answer 12

b) It optimizes query performance for specific fields