AZ-204
Development and integration of solutions on Azure: functions, APIs, and containers.
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Exam questions
Time limit
Passing score
Associate
Level
2-minute high-yield audio summaries reviewing classic exam traps and golden rules for Microsoft Certified: Azure Developer Associate.
Azure Cosmos DB: 5 Consistency Levels
NoSQL Data Consistency & Trade-offs
Event Grid vs. Event Hubs vs. Service Bus
Azure Messaging & Event-Driven Architecture
Azure Durable Functions: 4 Core Patterns
Stateful Serverless Orchestration
App Service Deployment Slots & Sticky Settings
Zero-Downtime Deployments & Configuration
Key Vault: Managed Identities & Azure RBAC
Zero-Secret Authentication & Secrets Access
Cosmos DB: Partition Keys & Preventing Hot Partitions
NoSQL Data Modeling & Cardinality
Cosmos DB Change Feed: Event-Driven Processing & Leases
Real-Time Streaming & Checkpoint Management
Azure Functions: Triggers, Input & Output Bindings
Serverless Declarative Integration
Blob Storage SDK: Concurrency Control & ETag Validation
Optimistic Concurrency & Conditional Headers
API Management: Policy Processing Pipeline & JWT Validation
API Gateway Transformation & Policy Scopes
Azure Service Bus: Topic Subscription Filters & Actions
Pub/Sub SQL Filters & Correlation Filters
Azure Event Grid: Event Schemas & Event Subscription Filtering
Event-Driven Reactive Routing & CloudEvents
Azure Cache for Redis: Eviction Policies & Connection Multiplexer
In-Memory Optimization & Memory Pressure Management
App Configuration: Feature Flags & Dynamic Configuration Refresh
Centralized Application Settings & Runtime Toggles
Application Insights: TelemetryClient & Sampling Types
Custom Application Telemetry & Volume Throttling
Azure Container Apps: KEDA Auto-Scaling & Dapr Integration
Serverless Microservices & Event-Driven Scaling
Microsoft Graph: Delegated Permissions vs. Application Permissions
Enterprise Identity & API Permission Scopes
Key Vault: Soft Delete, Purge Protection & SDK Caching
Zero-Loss Secret Management & SecretClient
MSAL: AcquireTokenSilent vs. AcquireTokenInteractive
Client Authentication & Token Caching
Durable Functions: Durable Entities & Stateful Virtual Actors
Stateful Serverless Computing & Race Conditions
Cosmos DB Indexing: Composite Indexes & Spatial Queries
NoSQL Performance: Multi-Field Sorting & Index Policies
Cosmos DB Throughput: Manual Provisioned vs. Autoscale RU/s
Request Unit Economics & Dynamic Concurrency Scaling
Cosmos DB Server-Side Programming: Stored Procedures & Triggers
JavaScript ACID Transactions Within a Single Logical Partition
Cosmos DB Multi-Region Writes & Conflict Resolution
Last-Writer-Wins (LWW) vs. Custom Merge Stored Procedures
Azure Functions Hosting: Consumption vs. Premium vs. Dedicated
Serverless Hosting Plans, Cold Starts & VNet Integration
Azure Functions Custom Handlers for Any Language
Running Go, Rust, R & Custom Binaries in Serverless
Azure Functions Scale Controller & Concurrency
Event-Driven Scaling Logic & Ingestion Rate Matching
Azure Blob Storage: Leases & Distributed Concurrency Locking
Exclusive Write Locks & Preventing Race Conditions
User Delegation SAS vs. Service SAS in Azure Storage
Microsoft Entra-Secured Shared Access Signatures
Azure.Storage.Files.Shares SDK: Directories & File Leases
Programmatic Cloud File Share Management in .NET & Java
Service Bus Message Sessions & Strict FIFO Ordering
Ordered Message Processing Across Competing Consumers
Service Bus Duplicate Detection & History Windows
At-Most-Once Deduplication via MessageId
Service Bus Message Deferral vs. Dead-Letter Queues (DLQ)
Postponing Sequence Processing vs. Poison Message Quarantine
Azure Event Grid: Webhook Validation Handshake & Partner Events
Webhook Security, Handshake Protocols & SaaS Ingestion
Azure Event Hubs Capture: Automated Big Data Archival
Zero-Code Streaming Ingestion to Blob & Data Lake Storage
EventProcessorClient & Checkpointing in Event Hubs
Partition Load Balancing, Checkpoint Stores & At-Least-Once Processing
API Management: Products, Subscriptions & Developer Portal
API Packaging, Monetization, Throttling & Developer Onboarding
API Management Caching: Internal vs. External Redis Caching
Response Acceleration, Cache-Lookup & Multi-Region Consistency
API Management: Pre-Auth with the <validate-jwt> Policy
Zero-Trust Gateway Enforcement & Claim Verification
API Management: Synthetic GraphQL & WebSocket APIs
Modern API Topologies: GraphQL Schema Resolvers & WebSockets
App Service Authentication: Easy Auth Architecture
Zero-Code Identity Provider Integration & Header Injection
App Service: Custom Domains & Free Managed Certificates
Domain Verification (CNAME/TXT) & Automated TLS Renewal
App Service Access Restrictions: IP Blocks & Service Tags
Web App Perimeter Defense & Multi-Tenant Frontend Filtering
Azure Container Registry (ACR) Tasks & Automated Builds
Cloud-Native Container Builds & Base Image Patch Automation
MSAL: Public Client vs. Confidential Client Applications
Microsoft Authentication Library Architecture & Secret Storage
OAuth 2.0 On-Behalf-Of (OBO) Flow in MSAL
Propagating User Identity Across Multi-Tier Microservices
MSAL Client Credentials Grant for Daemon Applications
Headless Background Services & Application Permissions
Application Insights: Custom Telemetry with TelemetryClient
Custom Business Events, Metrics & Dependency Instrumentation
Application Insights Sampling: Adaptive, Fixed-Rate & Ingestion
Controlling Telemetry Volume & Cost Optimization
App Configuration: Feature Filters & Percentage Targeting
Progressive Feature Rollout & User Ring Management
Balance consistency against latency and availability by selecting the precise Cosmos DB consistency tier for user workflows.
The 5 levels (Strongest to Weakest): Strong (linearizable, highest latency, regional writes only) -> Bounded Staleness (defined lag window) -> Session (DEFAULT, read-your-writes for single client) -> Consistent Prefix -> Eventual (fastest, lowest latency).
Direct links to official Microsoft Azure blueprints, curriculum roadmaps, and whitepapers.
Official Microsoft syllabus, exam registration, and learning roadmap for Microsoft Certified: Azure Developer Associate.
Interactive sandbox modules, guided labs, and self-paced certification courses.
Microsoft's official repository of reference architectures, design patterns, and best practices.
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