Q1. What is the difference between a GCP project and an organization?
An organization is the root node of the Google Cloud resource hierarchy. A project is the fundamental resource container where you enable APIs, create resources, and atta...
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (10 available).
Active:
Tag: gc ×
Q2. Explain IAM roles and service accounts in GCP.
GCP IAM binds principals to roles on resources. A service account is a special identity for workloads rather than humans. - Principals: users, groups, service accounts, d...
Q3. Compare Compute Engine, GKE, and Cloud Run.
All run workloads, but at different levels of abstraction. - Compute Engine: raw VMs with full control of the OS, networking, and disks. Best for legacy apps, custom kern...
Q4. How does BigQuery separate storage and compute?
BigQuery is a serverless, columnar data warehouse built on a separation of storage and compute. - Storage: data lives in Capacitor, a columnar format backed by Colossus d...
Q5. Explain VPC networks and firewall rules in GCP.
A GCP VPC is a global, software-defined network. Subnets are regional, and instances in different regions can communicate over the internal network. - VPC networks come i...
Q6. Compare the GCP Cloud Storage classes.
Cloud Storage classes trade storage cost for retrieval cost and minimum storage duration. - Standard: frequent access, no minimum duration. Best for hot data and serving ...
Q7. How does Python memory management work?
CPython combines: - Reference counting for immediate reclamation. Every object tracks how many references point to it; when the count hits zero it is freed. - A cyclic ga...
Q8. How do you design a highly available GKE cluster?
Plan for node, zone, and control-plane failures. - Regional cluster: the control plane is replicated across three zones and nodes spread across zones, so a single zone ou...
Q9. What is a GCP service account key and why should you avoid it?
A service account key is a downloadable JSON file containing a private key that lets any holder authenticate as that service account. It is long-lived and does not expire...
Q10. How do you optimise BigQuery query cost and performance?
Cost in on-demand BigQuery is driven by bytes scanned, so reduce what each query reads. - Partition tables, usually by date, and add partition filters so only relevant pa...