AZURE DEVELOPER ASSOCIATE - D306
EXAM/NEWEST 2025 WITH COMPLETE
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ WELL GRADED A+//LATEST
VERSION!
Orchestration Trigger - CORRECT ANSWERS -A trigger used in Durable Functions that
is single-threaded and focuses on calling activity functions in the correct order
Activity Trigger - CORRECT ANSWERS -A trigger used in Durable Functions for writing
activity functions, allowing communication between orchestration and activity functions;
multi-threaded with no restrictions on threading or I/O operations
Patterns for showing how orchestration and activity functions interact - CORRECT
ANSWERS -Include Chaining, Fan out/fan in, Async HTTP APIs, Monitor, Human
Interaction, and Aggregator
Binding mechanism - CORRECT ANSWERS -Mechanism in Durable Functions to pass
information between different functions in the workflow
Cosmos DB - CORRECT ANSWERS -premium storage service that provides a globally-
distributed, low-latency, highly responsive, and always-online database service
Key-Value - CORRECT ANSWERS -approach for storing data in Cosmos DB
Column-Family - CORRECT ANSWERS -approach for storing data in Cosmos DB
Documents - CORRECT ANSWERS -approach for storing data in Cosmos DB
Graph - CORRECT ANSWERS -approach for storing data in Cosmos DB
SQL - CORRECT ANSWERS -the core and default API for accessing data in a Cosmos
DB account; allows querying of JSON objects with SQL syntax
Table - CORRECT ANSWERS -evolution of the Azure Table Storage service; allows
defining indexes in tables and storing information based on documents
Cassandra - CORRECT ANSWERS -column-based database that stores information
using a key-value approach; Cosmos DB implements the wire protocol for Apache
Cassandra
, MongoDB - CORRECT ANSWERS -NoSQL database that allows storing application
information in a document-based structure; Cosmos DB implements the wire protocol
compatible with MongoDB 3.2
Gremlin - CORRECT ANSWERS -API based on the Apache TinkerPop graph traversal
language; allows storing information in Cosmos DB with a graph structure
Vertices - CORRECT ANSWERS -entities in a graph structure stored in Cosmos DB
Edges - CORRECT ANSWERS -relationships between vertices in a graph structure
stored in Cosmos DB
Properties - CORRECT ANSWERS -attributes assignable to vertices or edges in a
graph structure stored in Cosmos DB
Logical partitions - CORRECT ANSWERS -divisions based on user-defined criteria in
Cosmos DB; all items share the same partition key
Partition keys - CORRECT ANSWERS -immutable keys used for partitioning data in
Cosmos DB; critical for distributing data across logical partitions
Hot partition - CORRECT ANSWERS -occurs when the partition key in Cosmos DB is
not specific enough, leading to most requests and reaching throughput/storage limits
Synthetic partition key - CORRECT ANSWERS -a key compound of two concatenated
properties used for partitioning data in Cosmos DB
Physical partitions - CORRECT ANSWERS -group of replicas of data physically stored
on servers in Cosmos DB; automatically managed by Azure
SDKs - CORRECT ANSWERS -software development kits offered by Azure for working
with different APIs to connect to Cosmos DB
Consistency level - CORRECT ANSWERS -configurable level in Cosmos DB for data
replication across regions; affects the consistency of data
Strong consistency - CORRECT ANSWERS -level in Cosmos DB where read
operations are guaranteed to return the latest committed write, offering a linearizability
guarantee
Bounded Staleness - CORRECT ANSWERS -level in Cosmos DB where reads are
guaranteed consistent within a preconfigured lag
Lag - CORRECT ANSWERS -Can consist of K (number of most recent versions) and T
(a time interval)
EXAM/NEWEST 2025 WITH COMPLETE
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ WELL GRADED A+//LATEST
VERSION!
Orchestration Trigger - CORRECT ANSWERS -A trigger used in Durable Functions that
is single-threaded and focuses on calling activity functions in the correct order
Activity Trigger - CORRECT ANSWERS -A trigger used in Durable Functions for writing
activity functions, allowing communication between orchestration and activity functions;
multi-threaded with no restrictions on threading or I/O operations
Patterns for showing how orchestration and activity functions interact - CORRECT
ANSWERS -Include Chaining, Fan out/fan in, Async HTTP APIs, Monitor, Human
Interaction, and Aggregator
Binding mechanism - CORRECT ANSWERS -Mechanism in Durable Functions to pass
information between different functions in the workflow
Cosmos DB - CORRECT ANSWERS -premium storage service that provides a globally-
distributed, low-latency, highly responsive, and always-online database service
Key-Value - CORRECT ANSWERS -approach for storing data in Cosmos DB
Column-Family - CORRECT ANSWERS -approach for storing data in Cosmos DB
Documents - CORRECT ANSWERS -approach for storing data in Cosmos DB
Graph - CORRECT ANSWERS -approach for storing data in Cosmos DB
SQL - CORRECT ANSWERS -the core and default API for accessing data in a Cosmos
DB account; allows querying of JSON objects with SQL syntax
Table - CORRECT ANSWERS -evolution of the Azure Table Storage service; allows
defining indexes in tables and storing information based on documents
Cassandra - CORRECT ANSWERS -column-based database that stores information
using a key-value approach; Cosmos DB implements the wire protocol for Apache
Cassandra
, MongoDB - CORRECT ANSWERS -NoSQL database that allows storing application
information in a document-based structure; Cosmos DB implements the wire protocol
compatible with MongoDB 3.2
Gremlin - CORRECT ANSWERS -API based on the Apache TinkerPop graph traversal
language; allows storing information in Cosmos DB with a graph structure
Vertices - CORRECT ANSWERS -entities in a graph structure stored in Cosmos DB
Edges - CORRECT ANSWERS -relationships between vertices in a graph structure
stored in Cosmos DB
Properties - CORRECT ANSWERS -attributes assignable to vertices or edges in a
graph structure stored in Cosmos DB
Logical partitions - CORRECT ANSWERS -divisions based on user-defined criteria in
Cosmos DB; all items share the same partition key
Partition keys - CORRECT ANSWERS -immutable keys used for partitioning data in
Cosmos DB; critical for distributing data across logical partitions
Hot partition - CORRECT ANSWERS -occurs when the partition key in Cosmos DB is
not specific enough, leading to most requests and reaching throughput/storage limits
Synthetic partition key - CORRECT ANSWERS -a key compound of two concatenated
properties used for partitioning data in Cosmos DB
Physical partitions - CORRECT ANSWERS -group of replicas of data physically stored
on servers in Cosmos DB; automatically managed by Azure
SDKs - CORRECT ANSWERS -software development kits offered by Azure for working
with different APIs to connect to Cosmos DB
Consistency level - CORRECT ANSWERS -configurable level in Cosmos DB for data
replication across regions; affects the consistency of data
Strong consistency - CORRECT ANSWERS -level in Cosmos DB where read
operations are guaranteed to return the latest committed write, offering a linearizability
guarantee
Bounded Staleness - CORRECT ANSWERS -level in Cosmos DB where reads are
guaranteed consistent within a preconfigured lag
Lag - CORRECT ANSWERS -Can consist of K (number of most recent versions) and T
(a time interval)
