DataEngPrep.tech
QuestionsPracticeAI CoachDashboardPacksBlog
ProLogin
Home/Questions/Cloud/Tools/Using Service Accounts in GCP

Using Service Accounts in GCP

Cloud/Toolshard0.5 min readPremium

**Why Service Accounts (SA)**: Non-human identities for apps, VMs, Cloud Functions. No passwords to rotate; IAM-bound. **Architecture**: Create SA in IAM; assign roles (least privilege). Attach to VM, Cloud Run, Dataflow, Composer. For GKE/Cloud Run: use Workload...

🤖 Analyze Your Answer
Frequency
Low
Asked at 1 company
Category
179
questions in Cloud/Tools
Difficulty Split
104E|27M|48H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Verizon

Why This Question Matters

This hard-level Cloud/Tools question appears frequently in data engineering interviews at companies like Verizon. While less common, it tests deeper understanding that distinguishes strong candidates.

How to Approach This

This is a senior-level question that tests architectural thinking. Lead with the high-level design, then drill into specifics. Discuss trade-offs explicitly - there is rarely one correct answer. Show awareness of scale, fault tolerance, and operational complexity.

Expert Answer
106 words

Why Service Accounts (SA): Non-human identities for apps, VMs, Cloud Functions. No passwords to rotate; IAM-bound. Architecture: Create SA in IAM; assign roles (least privilege). Attach to VM, Cloud Run, Dataflow, Composer. For GKE/Cloud Run: use Workload Identity—pod/container gets SA without key files. Workload Identity Federation extends to AWS/Azure for cross-cloud. Scalability: One SA per application/service; avoid shared SAs. Cost: No cost for SAs; key files are a liability—use Workload Identity. Security: Key files can leak; prefer ADC (Application Default Credentials) and Workload Identity. Best practice: One SA per app; least privilege; no key files in production—Workload Identity everywhere. Rotate keys if legacy apps require them.

The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations covering performance optimization and real-world examples.

This answer is partially locked

Unlock the full expert answer with code examples and trade-offs

Recommended

Start AI Mock Interview

Practice real interviews with AI feedback, track progress, and get interview-ready faster.

  • Unlimited AI mock interviews
  • Instant feedback & scoring
  • Full answers to 1,800+ questions
  • Resume analyzer & SQL playground
Create Free Account

Pro starts at $24/mo - cancel anytime

Just need answers for quick revision?

Download curated PDF interview packs

Interview Packs
1,800+ real interview questions sourced from 5 top companies
AmazonGoogleDatabricksSnowflakeMeta
This answer is in the DE Mastery Vault 2026
1,863 questions with expert answers across 7 categories →

Free: Top 20 SQL Interview Questions (PDF)

Get the most asked SQL questions with expert answers. Instant download.

No spam. Unsubscribe anytime.

Related Cloud/Tools Questions

easyWhat are Airflow Operators? Give examples.FreeeasyExplain the difference between Azure Data Factory (ADF) and Databricks.FreeeasyHow do you handle data security and compliance in a cloud environment?FreehardWhat are the key components of AWS Glue, and how do they work together?FreeeasyWhat is Azure Data Factory (ADF), and what are its main components?Free

Want to know if YOUR answer is good enough?

Paste your answer and get instant AI feedback with a FAANG-level improved version.

Analyze My Answer — Free

According to DataEngPrep.tech, this is one of the most frequently asked Cloud/Tools interview questions, reported at 1 company. DataEngPrep.tech maintains a curated database of 1,863+ real data engineering interview questions across 7 categories, verified by industry professionals.

← Back to all questionsMore Cloud/Tools questions →