CNX-001 Exam Dumps : CompTIA CloudNetX Exam

Comprehensive and Detailed Explanation From Exact Extract:

A 403 Forbidden error indicates that the request was understood by the server but is refusing to fulfill it due to insufficient authorization. The developer is attempting to call a protected API that requires valid credentials such as an access key and signature (often used in HMAC-based APIs), but the values appear as Postman variables (e.g., {{rapyd_access_key}}), which suggests they were not replaced with actual credentials.

This typically means that the request lacks proper authentication or authorization headers, or the keys/signature are incorrect or missing. The presence of access_key, signature, salt, and timestamp in the request implies the API requires authentication, but the variables were not resolved or valid.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “API Security and Authentication”:

“A 403 error typically results from failed authentication or lack of proper authorization. Developers must ensure that tokens or signatures are valid, not missing, and properly injected.”

Other options:

A. 404 is the code for a missing resource, not 403.

C. A firewall rule would block the request entirely (e.g., no response or a 0 status), not result in a 403 from the server.

D. HTTP redirection issues typically result in 3xx codes, not 403.

Comprehensive and Detailed Explanation From Exact Extract:

A. Least privilege – This Zero Trust principle ensures users can only access the resources necessary for their job roles. Role-based access control (RBAC), as mentioned in the scenario, is a textbook implementation of least privilege.

C. Microsegmentation – Deploying the application in a small subnet (192.168.77.32/30 provides only 2 usable host IPs) limits lateral movement and isolates the host at a network level. This is a key characteristic of microsegmentation, where resources are placed in small, tightly controlled network segments.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Zero Trust Security Architecture”:

“Least privilege enforces access permissions based on job responsibilities.”

“Microsegmentation applies granular isolation policies between resources to reduce the attack surface and lateral movement.”

Other options:

B. Device trust involves assessing device posture and compliance before granting access.

D. CASB (Cloud Access Security Broker) governs cloud access, not access control or subnetting.

E. WAF protects web applications but is not a Zero Trust element directly related to access control.

F. MFA supports identity verification but is not directly evidenced in the scenario.

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Comprehensive and Detailed Explanation From Exact Extract:

2.4GHz has longer range and better wall penetration than higher frequencies like 5GHz or 6GHz.A patch antenna (a type of directional antenna) focuses the signal in one direction, greatly improving range and reliability over long distances between buildings.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Wireless Deployment and Antenna Selection”:

“2.4GHz offers extended range over 5GHz. Directional antennas such as patch antennas concentrate signals toward a target, improving distance communication.”

Other options:

B & C. Higher frequencies provide faster speeds but shorter range.

D. Omnidirectional antennas spread signal in all directions, not ideal for point-to-point.

F. Built-in antennas are generally low gain and insufficient for building-to-building links.