Interview Q&A

Short answer: A subscription grants access to APIs in APIM. Each subscription has a unique key for identifying and authorizing requests. Can enforce rate limits and quotas per subscription. Troubleshooting – Q&A

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Application Insights – Application performance, exceptions, telemetry Azure Monitor – Metrics, alerts, dashboards Log Analytics – Query logs across resources Azure Diagnostics – Collect runtime logs from App Services, VMs Network Watcher – Monitor networking issues

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Application Insights is an APM (Application Performance Monitoring) service. Tracks requests, dependencies, exceptions, page views, and telemetry for .NET apps. Example – Integrating with ASP.NET Core: builder.Services.AddApplicationInsightsTelemetry(builder.Configurati on["APPINSIGHTS_INSTRUMENTATIONKEY"]);

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Distributed tracing tracks requests across services and microservices. Application Insights supports W3C trace context. Example in ASP.NET Core: builder.Services.AddApplicationInsightsTelemetry(options => {

Example code

options.EnableDependencyTrackingTelemetryModule = true; });

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Centralized log collection and query platform in Azure Monitor. Allows querying with Kusto Query Language (KQL) to analyze logs from App Services, Functions, SQL, etc. Example query: requests | where success == false | summarize count() by operation_Name

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use TrackMetric API in Application Insights. Example: var telemetry = new TelemetryClient(); telemetry.TrackMetric("ItemsProcessed", 100);

Example code

Use TrackMetric API in Application Insights. Example: var telemetry = new TelemetryClient(); telemetry.TrackMetric("ItemsProcessed", 100);

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Azure Monitor is a comprehensive platform to collect, analyze, and act on telemetry across Azure resources. Supports metrics, logs, alerts, dashboards, and automation.

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use Azure Monitor Alerts on metrics or log queries. Example: Alert when HTTP request failures exceed threshold: Metric: ServerResponseTime Condition: > 1000ms Action: Email, Webhook, Logic App

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Enable Application Insights in Function App. Monitor exceptions, failed invocations, and retries. Example: Check telemetry via FunctionInvocationException.

Real-world example (ShopNest)

Order-paid events go to Service Bus; an Azure Function sends the confirmation email asynchronously.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use Query Performance Insight in Azure SQL portal Monitor DTU consumption, long-running queries, blocking sessions Enable Query Store for historical analysis

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use Deployment Center in App Service Enable App Service logs (Application, HTTP, Web server logs) Access logs via Kudu Console or FTP

Real-world example (ShopNest)

ShopNest’s API runs on Azure App Service with staging slots—swap staging to production after smoke tests.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Advanced management console for Azure App Services Provides file explorer, process explorer, environment variables, and log streaming Access via Q&A

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use modular architecture with microservices or layered design. Host APIs in Azure App Services or Azure Functions. Store data in Azure SQL, Cosmos DB, or Blob Storage. Implement CI/CD with Azure DevOps or GitHub Actions. Apply monitoring with Application Insights and security with Azure AD.

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use Azure Key Vault to store secrets, connection strings, and certificates. Configure managed identity for pipeline tasks. Avoid storing secrets in code or pipeline variables directly. Example – Azure DevOps pipeline: task: AzureKeyVault@2 inputs: azureSubscription: 'MyServiceConnection' KeyVaultName: 'MyKeyVault' SecretsFilter: '*'

Real-world example (ShopNest)

Connection strings and payment keys live in Key Vault—not in source control or plain appsettings on disk.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use deployment slots in Azure App Services. Deploy new version to staging slot, test it, then swap with production. Rollback is possible by swapping back.

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use Azure App Configuration or Feature Management library. Enables dynamic feature enable/disable without redeploying. Example in .NET: if (_featureManager.IsEnabledAsync("NewCheckout")) { // Execute new feature code }

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Azure Functions for business logic API Management as gateway Azure Storage / Cosmos DB for persistence Application Insights for monitoring Event Grid / Service Bus for event-driven communication

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Deploy across multiple regions Use availability zones for VM-based apps Enable auto-scaling for App Services or Functions Use Azure Front Door or Traffic Manager for global load balancing

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Azure Functions (Serverless): Pay per execution and resource usage – cost-effective for sporadic workloads App Services: Pay per plan (CPU/RAM), better for constant workloads Choose based on traffic patterns and scaling needs

Real-world example (ShopNest)

ShopNest’s API runs on Azure App Service with staging slots—swap staging to production after smoke tests.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Choose appropriate partition key Use asynchronous SDK methods Enable RU-based throughput scaling Cache frequently accessed data using Redis Cache Example in .NET SDK: var container = cosmosClient.GetContainer("db", "container"); var query = new QueryDefinition("SELECT * FROM c WHERE c.status = @status") .WithParameter("@status", "Active"); var iterator = container.GetItemQueryIterator<MyItem>(query);

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use Azure Cache for Redis or in-memory caching in .NET. Cache frequently accessed data to reduce DB calls. Example in ASP.NET Core: services.AddStackExchangeRedisCache(options => {

Example code

options.Configuration = Configuration["Redis:ConnectionString"]; });

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Azure Front Door is a global load balancer and CDN. Provides SSL termination, caching, fast failover, and routing rules. Improves latency, availability, and performance for global apps.

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use retry policies for transient failures Implement circuit breakers Deploy redundant instances across regions Use queue-based asynchronous communication Monitor health and alerts to detect failures

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Azure Bicep is a domain-specific language (DSL) for declaratively deploying Azure resources. Simplifies ARM templates with cleaner syntax. Example – Deploy an Azure Storage Account: resource storageAccount 'Microsoft.Storage/storageAccounts@2022-09-01' = { name: 'mystorageacct' location: resourceGroup().location sku: { name: 'Standard_LRS' } kind: 'StorageV2' }

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.

Short answer: Use Bicep, ARM templates, Terraform, or Azure CLI scripts. Integrate into CI/CD pipelines in Azure DevOps or GitHub Actions.

Real-world example (ShopNest)

ShopNest on Azure typically uses App Service + SQL Database + Blob Storage + Application Insights for monitoring.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.