AZ-200 Azure Cosmos DB

Question 1

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

Accepted Answer

It distributes data across logical partitions to enable horizontal scaling

Answer

It determines the geographic region where data is stored

Answer

It encrypts data at rest

Answer

It defines the indexing policy

Question 2

Which consistency level in Azure Cosmos DB guarantees that reads always return the most recently written value?

Accepted Answer

Strong

Answer

Session

Answer

Bounded Staleness

Answer

Consistent Prefix

Question 3

What unit does Azure Cosmos DB use to measure and limit database operation throughput?

Accepted Answer

RUs (Request Units)

Answer

DTUs (Database Transaction Units)

Answer

ACUs (Azure Compute Units)

Answer

IOPs

Question 4

Which Cosmos DB API is most appropriate for migrating an existing MongoDB application to Azure?

Accepted Answer

MongoDB API

Answer

SQL (Core) API

Answer

Cassandra API

Answer

Table API

Question 5

What is the purpose of the Time to Live (TTL) feature in Azure Cosmos DB?

Accepted Answer

Automatically deletes items after a specified number of seconds

Answer

Limits query execution time

Answer

Controls session token expiry

Answer

Sets the maximum RU burst duration

Question 6

What is the purpose of a stored procedure in Azure Cosmos DB?

Accepted Answer

To execute atomic, transactional operations on items within a single partition

Answer

To schedule background jobs

Answer

To replicate data to other regions

Answer

To create secondary indexes