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IndiaQ1. What is the shared responsibility model in cloud security?
Short answer: The provider secures the cloud; you secure what you put in it.
Strong answer: Cloud providers secure the underlying infrastructure (hardware, network, hypervisor); customers secure their data, identities, access, configurations, OS/app patching and network rules. The split shifts by service type (IaaS vs PaaS vs SaaS). Most breaches come from the customer side — misconfiguration and identity — not the provider.
Likely follow-up: How does the responsibility split change between IaaS and SaaS?
What the interviewer is checking: Foundational cloud-security understanding.
Common mistake: Assuming the provider secures your data and config.
Q2. How do you implement least privilege and zero trust in the cloud?
Short answer: Grant minimal scoped permissions, verify every request, and assume no implicit trust.
Strong answer: Least privilege means granting only the permissions needed, scoped as narrowly as possible, using roles over long-lived keys and just-in-time access. Zero trust assumes no implicit trust by network location — every request is authenticated, authorized and encrypted, with continuous verification and segmentation. Together they shrink the blast radius of any compromise.
Likely follow-up: How do you find and remove over-permissioned identities?
What the interviewer is checking: Identity-first security thinking.
Common mistake: Broad wildcard permissions and standing admin access.
Q3. What are the most common cloud misconfigurations, and how do you prevent them?
Short answer: Public storage, open security groups, over-permissive IAM; prevent with policy-as-code and scanning.
Strong answer: Frequent issues: publicly exposed object storage, wide-open network/security groups, over-permissive IAM, unencrypted data, and disabled logging. Prevent with secure defaults, IaC with policy-as-code (guardrails), automated posture management (CSPM) scanning, and least-privilege reviews. Catch them before deploy, not after a breach.
Likely follow-up: How does policy-as-code stop a public bucket from being created?
What the interviewer is checking: Preventive security practice.
Common mistake: Relying on manual review to catch misconfigurations.
Q4. How do you secure secrets and encryption keys in the cloud?
Short answer: Use a managed secrets/KMS service, access via identity, encrypt in transit and at rest, and rotate.
Strong answer: Store secrets and keys in a managed service (Key Vault/KMS/Secrets Manager), access them via workload identities (not embedded credentials), encrypt data in transit (TLS) and at rest, and rotate regularly. Scope access with least privilege and audit usage. Never commit secrets to source or bake them into images.
Likely follow-up: Why is a managed identity better than an embedded API key?
What the interviewer is checking: Secret/key management.
Common mistake: Hardcoding keys in code or config.
Q5. How do you secure a Kubernetes cluster?
Short answer: RBAC, network policies, pod security, image scanning, secrets management and audit logging.
Strong answer: Lock down the API with RBAC and least privilege, restrict pod-to-pod traffic with network policies, enforce pod security standards (no privileged/root), scan images and admit only trusted ones, manage secrets externally, encrypt etcd, and enable audit logging. Keep nodes and the control plane patched.
Likely follow-up: What does a network policy protect against that RBAC does not?
What the interviewer is checking: Container-security depth.
Common mistake: Running privileged pods with a wide-open cluster.
Q6. How do you approach threat detection and incident response in the cloud?
Short answer: Centralize logs, use cloud-native threat detection, alert on anomalies, and have an IR runbook.
Strong answer: Aggregate logs (CloudTrail/Activity logs, flow logs) into a SIEM, enable cloud-native detection (GuardDuty/Defender), and alert on anomalous identity, network and API activity. Have an incident-response runbook: contain (isolate/revoke), investigate, eradicate, recover, and learn. Practice with tabletop exercises.
Likely follow-up: What is the first containment step if an access key is leaked?
What the interviewer is checking: Detection and response readiness.
Common mistake: No centralized logging or IR plan until after an incident.
Q7. What is DevSecOps and how do you shift security left?
Short answer: Embed automated security into the CI/CD pipeline so issues are caught early.
Strong answer: DevSecOps integrates security into development and delivery: secret scanning, SAST/DAST, dependency (SCA) scanning, IaC scanning and image scanning run automatically in CI/CD, with policy gates. Shifting left catches vulnerabilities before production, where they are far cheaper to fix, and makes security a shared responsibility.
Likely follow-up: Which security scans would you run in a pull-request pipeline?
What the interviewer is checking: Modern secure-delivery practice.
Common mistake: Treating security as a final gate instead of continuous.