Zero trust network architecture in Computer Networks - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Core Principle of Zero Trust

Which statement best describes the core principle of zero trust network architecture?

A Allow unrestricted access to internal resources once inside the network.

B Trust all devices inside the network perimeter by default.

C Verify and authenticate every user and device before granting access.

D Rely solely on firewalls to protect the network perimeter.

💡 Hint

Think about how zero trust treats every access request.

Zero trust means never trusting any user or device by default, even if they are inside the network. Every access request must be verified and authenticated.

📋 Factual

intermediate

Key Component of Zero Trust Architecture

Which of the following is a key component of zero trust network architecture?

A Single-factor authentication for all users.

B Static network segmentation without dynamic controls.

C Unlimited access to all network resources after login.

D Continuous monitoring and validation of user activity.

💡 Hint

Zero trust requires ongoing checks, not just one-time verification.

Continuous monitoring and validation help ensure that access remains appropriate and secure throughout a session, which is essential in zero trust.

🚀 Application

advanced

Applying Zero Trust to Remote Access

A company wants to apply zero trust principles to remote workers accessing internal applications. Which approach aligns best with zero trust?

A Require multi-factor authentication and device health checks before access.

B Grant access based on IP address ranges only.

C Allow remote workers to connect via VPN with no additional checks.

D Use a single password shared among all remote workers.

💡 Hint

Zero trust requires strong verification and device validation.

Zero trust requires verifying user identity and device security before granting access, so multi-factor authentication and device health checks are essential.

🔍 Analysis

advanced

Impact of Zero Trust on Network Segmentation

How does zero trust network architecture change traditional network segmentation?

A It enforces micro-segmentation with strict access controls.

B It removes segmentation and trusts all internal traffic.

C It relies only on physical network boundaries for segmentation.

D It uses a flat network design without any segmentation.

💡 Hint

Zero trust limits access even within the network.

Zero trust uses micro-segmentation to create small, secure zones with strict access controls, reducing the risk of lateral movement by attackers.

❓ Reasoning

expert

Reasoning About Zero Trust Benefits

Why does zero trust architecture reduce the risk of insider threats compared to traditional models?

A Because it allows unrestricted data sharing among all employees.

B Because it continuously verifies user identity and limits access to only what is needed.

C Because it eliminates the need for user authentication inside the network.

D Because it assumes all insiders are trustworthy and grants broad access.

💡 Hint

Think about how zero trust controls access even for insiders.

Zero trust reduces insider threats by continuously verifying identities and enforcing least privilege access, limiting what insiders can do.