Indian IT services
Quess Corp IT Cloud Engineer Interview: Rounds, Questions and Preparation
For Cloud Engineer roles at companies like Quess Corp IT
What the job involves
A Cloud Engineer at Indian IT services firms supports the design, deployment, and maintenance of cloud infrastructure for clients, often on AWS, Azure, or GCP. Day to day work includes provisioning virtual machines, managing storage and networking, monitoring costs and performance, and troubleshooting issues under the guidance of senior engineers. Freshers typically start with cloud operations, basic automation, and client ticket resolution.
Role and Technical Knowledge
- 1
What is the difference between a public, private, and hybrid cloud?
Define each clearly with one example. Mention that Indian IT services clients often use hybrid models for cost and compliance.
- 2
Explain the shared responsibility model in cloud security.
State that the cloud provider secures the cloud, while the customer secures what they put in the cloud. Give an example like patching guest OS versus physical security.
- 3
What are the key components of a Virtual Private Cloud (VPC)?
Cover subnets, route tables, internet gateways, NAT gateways, and security groups. Mention that VPC design affects availability and security.
- 4
How does an Identity and Access Management (IAM) policy work?
Explain users, groups, roles, and policies. Emphasise least privilege and how it is used to grant temporary access to services.
Practical Scenarios and Troubleshooting
- 5
A client reports that their website hosted on a cloud VM is down. How would you troubleshoot?
Start with checking VM status, security group rules, network ACLs, and service logs. Mention escalating if it is a provider-side outage.
- 6
You need to reduce cloud costs for a small client. What steps would you take?
Suggest rightsizing instances, using reserved instances or savings plans, deleting unused resources, and setting up billing alerts.
- 7
How would you automate the daily backup of an S3 bucket or Azure Blob storage?
Describe using lifecycle policies, versioning, and a scheduled script or cloud-native backup service. Mention testing restore.
- 8
A developer cannot SSH into a Linux instance on the cloud. What could be wrong?
Check security group inbound rules, key pair permissions, network ACLs, and whether the instance has a public IP. Also verify the SSH service is running.
Cloud Services and Architecture Basics
- 9
What is the difference between object storage and block storage?
Object storage (S3, Blob) is for unstructured data with HTTP access; block storage (EBS, managed disks) is for low-latency disk volumes attached to VMs.
- 10
Explain what a load balancer does and when you would use one.
It distributes incoming traffic across multiple servers to improve availability and scalability. Mention application and network load balancers.
- 11
What is auto-scaling and why is it important for Indian IT clients?
Auto-scaling automatically adjusts compute capacity based on demand. It helps handle traffic spikes and reduces cost during low usage.
- 12
What is a content delivery network (CDN) and how does it help a global client?
A CDN caches content at edge locations closer to users, reducing latency and origin load. Give an example like CloudFront or Azure CDN.
Behavioural and HR Questions
- 13
Why do you want to work as a Cloud Engineer in an IT services company?
Show interest in cloud technology and client-facing work. Mention willingness to learn and adapt to different client environments.
- 14
Are you comfortable working in rotational shifts or on-call support?
Answer honestly but positively. Many Indian IT services roles require 24x7 support, so express flexibility if you can.
- 15
Tell me about a time you learned a new technology quickly for a project or certification.
Use a specific example like a college project or online course. Highlight the steps you took and the outcome.
- 16
How would you handle a situation where a client is upset about a delay in resolving a cloud issue?
Show empathy, clear communication, and a plan. Mention acknowledging the issue, giving regular updates, and escalating if needed.
Coding round
Cloud Engineer interviews usually include a coding round. Practise planning the solution out loud, then review code the AI writes from your plan, in Python, Java, C++, C or JavaScript.
Ready to try it for real?
Take a timed test or talk through a mock interview for this role, then see your scores.
This is practice material for Cloud Engineer roles, written with AI. It is not a list of questions Quess Corp IT or any other company has asked.