Cloud Digital Leader Why Cloud Technology Can Transform Business Practice Question
An organization wants to achieve a zero-trust security model on Google Cloud. Which TWO Google Cloud security capabilities support this goal? (Choose TWO.)
⚠ Common exam trap
GCDL often tests the misconception that network security controls like VPC firewalls or Cloud Armor are part of zero-trust, when zero-trust emphasizes identity and context-based access, not network perimeter.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
BeyondCorp Enterprise
BeyondCorp Enterprise (B) is correct because it is Google Cloud's zero-trust access platform, enforcing identity- and context-aware access to applications and resources without relying on a traditional VPN or network perimeter. IAM (E) is correct because it provides fine-grained, identity-based authentication and authorization for Google Cloud resources, which is a foundational pillar of zero-trust ('never trust, always verify'). VPC firewalls (A) are network-perimeter controls based on IP ranges and tags, not identity, so they do not embody zero-trust principles. Cloud Armor (C) is an edge WAF/DDoS protection service that filters HTTP(S) traffic but does not implement zero-trust identity verification. Cloud KMS (D) manages encryption keys and supports data protection, but key management alone does not establish zero-trust access control.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VPC firewalls
Why it's wrong here
VPC firewalls control traffic at the network layer by applying static rules based on IP addresses, ports, and protocols at the subnet or instance level. They cannot implement zero trust because they rely on network location rather than verified identity and device posture, and they do not continuously evaluate user context or enforce per-request authorization decisions.
- ✓
BeyondCorp Enterprise
Why this is correct
BeyondCorp Enterprise is a zero-trust access solution that replaces the traditional VPN perimeter with an access proxy that evaluates identity, device health, and context for every request. It continuously checks trust signals against policy and grants access only when conditions are met, embodying the core zero-trust principle of 'never trust, always verify' for applications and resources.
- ✗
Cloud Armor
Why it's wrong here
Cloud Armor is a web application firewall (WAF) and DDoS protection service that inspects incoming traffic for malicious patterns, signatures, or IP-based threats at the edge. It does not authenticate users, evaluate device posture, or make identity-aware access decisions, so while it strengthens network defenses, it does not provide the user-level trust verification required for a zero-trust model.
- ✗
Cloud Key Management Service (KMS)
Why it's wrong here
Cloud KMS is a key management service that creates, stores, manages, and rotates encryption keys used to protect data at rest and in transit. It is a critical security control for data confidentiality, but it does not establish trust for user access or resource authorization, and it never verifies an individual's identity or device posture, making it unrelated to the identity-driven decisions at the heart of zero trust.
- ✓
Identity and Access Management (IAM)
Why this is correct
IAM is indeed a correct foundational element of zero trust because it delivers fine-grained, identity-based access control on Google Cloud through roles, permissions, and conditions, enforcing least privilege. However, IAM alone does not provide continuous evaluation of device context or protect applications outside Google Cloud, which is why a comprehensive solution like BeyondCorp Enterprise is needed to operationalize zero trust end-to-end.
Go deeper
Related to this question
Learn chapter
Data Types and Analytics Workloads
Key term
Encryption
Encryption is the process of converting readable data into a secret code to prevent unauthorized access.
Key term
KMS
KMS (Key Management Service) is a Microsoft technology that automates volume licensing activation for Windows and Office products within an organization's network.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Google Cloud exam blueprint
This GCDL practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the GCDL exam.