36 practice questions with answers for Microsoft Azure interviews in Delhi.
Microsoft Azure jobs in Delhi
Delhi NCR has one of India's biggest pools of IT, consulting, banking and start-up jobs. Delhi itself hosts many corporate, government-tech and consulting offices, and most candidates also apply across Noida and Gurgaon, so interviews here mix service-company and product-company styles.
Below are 36 questions that match the mix of service, product and domain employers hiring azure cloud support associates in Delhi.
Solved for DelhiStart practicing
3 QUESTIONS FREESign up to unlock the full question bank and track your progress.Unlock every question and answer, then continue practising company-wise and package-wise.
✓ 3 questions free • Unlock the rest in seconds
01
A VM in a spoke cannot reach a VM in another spoke. What could be wrong?
Peering is not transitive, so spoke to spoke traffic needs a route through the hub. Check that both spokes have UDRs pointing the other spoke's range to the hub firewall, that peerings allow forwarded traffic, and that firewall network rules allow the flow. Then check NSGs on both subnets and NICs and the guest OS firewall. Use Network Watcher next hop and IP flow verify to confirm.
02
What is the what-if operation in Bicep deployments?
What-if previews the changes a deployment will make before applying it, showing resources to create, modify, delete or ignore and property-level differences. Run it in pull request pipelines so reviewers see the real impact of a template change. It has some noise for properties set by the platform, but it catches dangerous changes like deleting a subnet or replacing a database.
03
Write a Cosmos DB NoSQL query to get a customer's orders above 5000 rupees.
Filter on the partition key so the query hits one partition and stays cheap:
SELECT c.id, c.orderDate, c.total
FROM c
WHERE c.customerId = @customerId
AND c.total > 5000
ORDER BY c.orderDate DESC
ORDER BY on orderDate needs a range index, which the default indexing policy includes. Check the RU charge in the response headers.
Azure Resource Graph is a fast query service over resource metadata across all subscriptions you can access, using KQL. It is used for inventory, compliance checks and finding orphaned resources, such as unattached disks or public IPs, much faster than looping through APIs. The portal's All resources view and Azure Policy compliance use it. Results reflect configuration, not performance metrics.
Hot is for frequently accessed data with the highest storage cost and lowest access cost. Cool suits data kept at least 30 days and read rarely. Cold suits data kept at least 90 days. Archive is offline, cheapest, with a 180-day minimum and rehydration taking hours. Deleting or moving data early triggers an early deletion charge, so choose tiers by real access patterns.
06
Compare Azure Load Balancer, Application Gateway, Front Door and Traffic Manager.
Load Balancer works at layer 4 (TCP/UDP) inside a region. Application Gateway is a regional layer 7 load balancer with path routing, TLS termination and an optional WAF. Front Door is a global layer 7 entry point with anycast, CDN caching and WAF. Traffic Manager is DNS-based global routing for any protocol. Use Front Door for global web apps and Load Balancer for non-HTTP traffic.
07
Your storage costs are growing fast because of old logs. What do you do?
Use Storage insights and Cost Analysis to find which containers and tiers drive cost. Enable last access tracking and apply lifecycle rules that move logs to Cool, then Cold or Archive, and delete after the retention period required by policy. Check for unnecessary GRS replication on non-critical data and leftover snapshots. Compress logs before upload and stop verbose logging at the source.
08
What is Azure Cosmos DB and which APIs does it support?
Cosmos DB is a fully managed, globally distributed NoSQL database with single-digit millisecond latency and SLAs for availability, throughput and latency. It supports the native NoSQL API, MongoDB (RU and vCore), Apache Cassandra, Gremlin graph and Table APIs, and PostgreSQL through Citus. It also offers integrated vector search, used for AI and retrieval-augmented generation apps.
09
What are Virtual Machine Scale Sets and their orchestration modes?
VMSS manages a group of load-balanced VMs that scale in or out automatically on metrics or schedules. Flexible orchestration, now the default, lets you mix VM sizes, spread across zones and fault domains, and manage instances like normal VMs. Uniform mode uses identical instances from one model and is optimised for large stateless fleets. Use VMSS for stateless web tiers, batch workers and custom container hosts.
10
You run a SaaS app with 300 small tenant databases whose usage peaks at different times. How do you host them cost-effectively?
An elastic pool shares a set of resources, in eDTUs or vCores, among many Azure SQL databases on one logical server. It suits SaaS apps with a database per tenant, where individual usage peaks at different times. Instead of sizing each database for its peak, you size the pool for combined usage and set per-database min and max limits. Too many busy databases at once will contend for resources.
11
Explain DTU and vCore purchasing models in Azure SQL Database.
DTU bundles CPU, memory and IO into fixed Basic, Standard and Premium sizes and is simple for small apps. The vCore model lets you choose compute and storage separately, with General Purpose, Business Critical and Hyperscale tiers, provisioned or serverless compute, and Azure Hybrid Benefit for existing SQL licences. vCore is recommended for most production workloads because it is transparent and easier to compare with on-premises.
12
An App Service cannot connect to an Azure SQL database behind a private endpoint. How do you troubleshoot?
Confirm the app has regional VNet integration into a subnet that can reach the private endpoint subnet. Check DNS first: from the Kudu console, nslookup the SQL server name; it must resolve to the private IP through privatelink.database.windows.net linked to the VNet. Then check NSGs, UDRs sending traffic to a firewall that blocks port 1433, and whether SQL public access is disabled as expected.
A managed identity is an Entra ID identity that Azure creates and rotates for a resource, so code can get tokens without storing secrets. A system-assigned identity is tied to one resource and deleted with it. A user-assigned identity is a standalone resource you can attach to many resources and that survives their deletion. User-assigned is better when several apps share access or when you pre-create role assignments.
Export a similar built-in role as JSON, keep only needed Actions and DataActions, set AssignableScopes and create it:
az role definition list --name 'Virtual Machine Contributor' > vm-op.json
# edit: Name 'VM Operator', Actions:
# Microsoft.Compute/virtualMachines/read
# Microsoft.Compute/virtualMachines/start/action
# Microsoft.Compute/virtualMachines/restart/action
# Microsoft.Compute/virtualMachines/deallocate/action
az role definition create --role-definition vm-op.json
15
What is the difference between an availability set and an availability zone?
An availability set spreads VMs across fault domains (separate racks, power and switches) and update domains (rebooted at different times) inside one datacenter, giving a 99.95% SLA. Availability zones place VMs in physically separate datacenters within a region, giving 99.99%. Zones protect against a full datacenter outage; availability sets only protect against rack and maintenance failures. New designs prefer zones where the region supports them.
Managed disks are block storage volumes for VMs that Azure manages as resources, with built-in redundancy. Types are Standard HDD for backups and dev, Standard SSD for light workloads, Premium SSD for production, Premium SSD v2 with independently tunable IOPS and throughput, and Ultra Disk for very high IOPS and low latency such as SAP HANA. Disks can be LRS or ZRS for some types.
17
Deploy a Bicep file and preview changes with Azure CLI.
Run what-if first, then deploy with a parameters file:
az deployment group what-if \
--resource-group rg-shop-dev \
--template-file main.bicep \
--parameters main.dev.bicepparam
az deployment group create \
--resource-group rg-shop-dev \
--template-file main.bicep \
--parameters main.dev.bicepparam
Use az deployment sub create for subscription-scope templates.
18
Describe a production incident you handled and what you learned.
Situation: an App Service API began returning 502 errors during peak hours. Task: restore service and find the root cause. Action: I scaled out to stop impact, then found in Application Insights that outbound SQL connections were exhausting SNAT ports. I added connection pooling and VNet integration with a NAT gateway. Result: errors stopped, and I wrote a postmortem and added a SNAT alert.
19
Write an Azure Pipelines YAML that builds a .NET app and deploys it to App Service.
In the plan's Scale out settings, choose rules-based autoscale or automatic scaling. A typical rule set: scale out by 1 instance when average CPU exceeds 70% for 10 minutes, scale in by 1 when below 30% for 10 minutes, minimum 2 and maximum 10 instances. Always pair scale-out with a scale-in rule and a cool-down period so the plan does not flap between sizes.
Use Entra ID integration with Kubernetes RBAC and disable local accounts. Make the API server private or restrict authorized IP ranges. Run workloads with Workload ID instead of secrets, keep secrets in Key Vault through the CSI driver, and apply Azure Policy for Kubernetes to block privileged pods. Enable Defender for Containers, use network policies, scan images in ACR and route egress through Azure Firewall.
22
What are RPO and RTO and how do they guide Azure designs?
RPO, recovery point objective, is the maximum acceptable data loss measured in time. RTO, recovery time objective, is how long recovery may take. A daily backup gives an RPO of up to 24 hours. Site Recovery gives an RPO of seconds to minutes and an RTO of minutes to hours. SQL failover groups give an RPO of seconds. Lower RPO and RTO cost more, so agree targets per application.
23
How do you find and fix slow queries in Azure SQL Database?
Open Query Performance Insight or Query Store to find the top queries by CPU, duration and IO. Check execution plans for scans, missing indexes and parameter sniffing. Review automatic tuning recommendations to create indexes or force the last good plan. Query DMVs like sys.dm_exec_query_stats and sys.dm_db_resource_stats. If resources are maxed after tuning, scale up or add read replicas.
24
What is a resource group and what rules apply to it?
A resource group is a logical container for resources that share a lifecycle, for example everything for one app environment. A resource belongs to exactly one group, groups cannot be nested, and deleting a group deletes everything inside it. The group has a location that stores metadata, but resources inside can live in other regions. Resources can be moved between groups for most resource types.
Metric alerts evaluate metrics such as CPU above 80% and can be dynamic with machine-learned thresholds. Log search alerts run KQL queries on a schedule. Activity log alerts fire on control-plane events or Service Health incidents. Smart detection in Application Insights finds anomalies. Alerts trigger action groups that send emails, SMS, Teams messages, webhooks or run Functions, Logic Apps and Automation runbooks.
26
Write an Azure PowerShell command to find all VMs without an env tag.
Filter Get-AzVM output on the Tags hashtable and export the result for review:
Connect-AzAccount
Get-AzVM | Where-Object {
-not $_.Tags -or -not $_.Tags.ContainsKey('env')
} | Select-Object Name, ResourceGroupName, Location |
Export-Csv untagged-vms.csv -NoTypeInformation
For large estates, Azure Resource Graph queries are faster across many subscriptions.
27
Create a VNet with two subnets and an NSG rule using Azure CLI.
Situation: after a firewall change, payment APIs in our spoke could not reach a partner endpoint. Task: restore traffic quickly. Action: I used Network Watcher next hop and firewall logs in Log Analytics, found the new rule collection had higher priority and denied the partner FQDN, and added an explicit allow. Result: service recovered in 25 minutes, and we added pipeline-based firewall rule reviews.
29
What is Infrastructure as Code and why use it on Azure?
Infrastructure as Code defines resources in versioned files, such as Bicep, ARM JSON or Terraform, instead of clicking in the portal. It makes environments repeatable, reviewable through pull requests and quick to rebuild after failure. Drift between dev, test and prod drops because all are deployed from the same templates with different parameters. It also documents the setup and enables automated policy checks before deployment.
30
What is the difference between an app registration and a service principal?
An app registration is the global definition of an application in its home tenant, with client ID, redirect URIs, API permissions and credentials. A service principal is the local instance of that app in a tenant, used for sign-in and role assignments. One multi-tenant app registration can have service principals in many tenants. Managed identities are special service principals whose credentials Azure manages.
31
How does encryption at rest and in transit work in Azure?
All Azure Storage, managed disks and Azure SQL data is encrypted at rest with AES-256 by default using Microsoft-managed keys. You can switch to customer-managed keys in Key Vault for control over rotation and revocation, and use double encryption or confidential computing for stricter needs. In transit, services use TLS 1.2 or higher, and you should enforce HTTPS only and minimum TLS version settings.
32
What is Durable Functions and what patterns does it support?
Durable Functions is an extension that lets you write stateful workflows in code. An orchestrator function calls activity functions, and the framework checkpoints state to storage so it survives restarts. Patterns include function chaining, fan-out/fan-in, async HTTP APIs with status polling, monitors and human interaction with timeouts. Orchestrator code must be deterministic, so avoid DateTime.Now or random values inside it.
Disable shared key access where possible and use Entra ID with RBAC roles like Storage Blob Data Reader. Use managed identities for apps. Disable public blob access, require TLS 1.2, restrict the firewall to selected VNets, or use private endpoints and disable public network access. Enable soft delete, versioning and Defender for Storage, and keep keys, if any, in Key Vault with rotation.
35
What is Azure Files and when would you use Azure File Sync?
Azure Files provides fully managed SMB and NFS shares that VMs and on-premises machines can mount, useful for lift-and-shift of apps expecting a file server. Azure File Sync installs an agent on Windows Servers to sync shares to Azure Files and use cloud tiering, keeping hot files locally and old files in the cloud. It helps branch offices share data without large local storage.
Defender for Cloud is a cloud security posture management and workload protection platform. The free foundational tier gives a secure score and recommendations based on the Microsoft cloud security benchmark. Paid Defender plans add threat detection for servers, storage, SQL, containers, Key Vault and App Service, vulnerability scanning and attack path analysis. It also covers AWS and GCP accounts and on-premises servers through Arc.
Frequently asked questions
Which companies hire Microsoft Azure professionals in Delhi?
Companies with large offices in Delhi include many IT services and product firms. Use their company pages below to practise employer-specific sets.
Are Microsoft Azure interviews in Delhi different from other cities?
The questions depend more on the company than the city. Delhi's mix of employers decides the style: Delhi itself hosts many corporate, government-tech and consulting offices, and most candidates also apply across Noida and Gurgaon, so interviews here mix service-company and product-company styles
How do I find Microsoft Azure jobs in Delhi?
Shortlist companies with Delhi offices, keep your CV focused on Microsoft Azure projects, apply on company career pages and job portals with the Delhi filter, and practise the questions on this page before each interview.