Describe the Capabilities and Features of Azure Cosmos DB DP-900 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   How does Azure Cosmos DB achieve global distribution with low latency for data access?

   • ABy storing a single copy of data in a central region and using a global CDN to cache it
   • BBy using a read-only replica in each region that must be manually promoted for writes
   • CBy partitioning data across regions and only storing a portion of the data in each region
   • DBy replicating data to multiple Azure regions and allowing reads and writes from any region
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   What is the purpose of partitioning in Azure Cosmos DB?

   • ATo encrypt data at rest
   • BTo replicate data to multiple regions
   • CTo create backups of the database
   • DTo distribute data and throughput across multiple physical partitions for scalability
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   An IoT company is storing device telemetry in Azure Cosmos DB. Each device sends a reading every second, and the data is used for real-time dashboards. The company needs to support high write throughput and low-latency queries on the most recent data. Which partitioning strategy should they use?

   • APartition by a constant value
   • BPartition by device ID
   • CDo not partition
   • DPartition by timestamp
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A startup is building a social network application. They need to store user profiles as JSON documents, friendships as graph relationships, and user preferences as key-value pairs. The team wants to use a single Azure database service to avoid managing multiple data stores. Which Azure service should they choose?

   • AAzure Table Storage
   • BAzure Cosmos DB
   • CAzure SQL Database
   • DAzure Cache for Redis
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A startup is building a real-time chat application. They need to store chat messages and support real-time notifications. The workload is highly variable, with peak usage during business hours and low usage at night. They want to minimize cost while ensuring low-latency access. Which Azure Cosmos DB configuration should they use?

   • AServerless mode with a single region
   • BServerless mode with multiple regions
   • CProvisioned throughput with manual scaling and a single region
   • DProvisioned throughput with autoscale and multiple regions
   Reveal Solution Discussion Select an answer first