CompTIA CNX-001 Dumps

Comprehensive and Detailed Explanation From Exact Extract:

An Allow List (also known as Whitelisting) is the most restrictive firewall rule approach. It blocks all traffic by default and only permits explicitly defined trusted IPs, URLs, or applications. This minimizes the attack surface and ensures that only known, safe traffic is allowed into the network.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Firewall and Security Rule Configuration”:

“Whitelisting or Allow Listing enforces a default-deny security posture by permitting only specified trusted sources. This approach offers the highest level of control and reduces exposure to unknown threats.”

Other options:

A. URL filtering restricts content access but is not as strict as allow lists.

B. File blocking targets malicious payloads but doesn’t limit traffic sources.

C. Network Security Groups (NSGs) are effective but broader in scope; they use allow/deny rules but may not be as tightly controlled as explicit allow lists.

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Comprehensive and Detailed Explanation From Exact Extract:

Round-robin DNS is a simplistic form of load balancing that does not perform health checks. If one of the four servers is down, DNS will still resolve its IP to 25% of users, resulting in failed connections. This matches the symptom of 25% failure rate — 1 out of 4.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Load Balancing Techniques and Availability”:

“Round-robin DNS distributes requests without regard for health status. Without external health checks, failed servers will continue to receive traffic, leading to partial service disruptions.”

Other options:

B. The percentages do not align with a 25% failure rate.

C. Least-connection algorithms usually have integrated health checks.

D. If health checks are active, the load balancer would not forward requests to a failed server.

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Comprehensive and Detailed Explanation From Exact Extract:

ipconfig /all on a Windows machine displays detailed network configuration, including the MACaddress (referred to as “Physical Address”) of the device’s network adapter. This is the most direct and accurate method for obtaining the MAC address of the device you are operating.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Device Identification and MAC Filtering”:

“MAC addresses can be identified locally using interface configuration tools such as ipconfig /all on Windows or ifconfig/ip on Linux.”

Other options:

B. netstat shows open network connections, not MAC addresses.

C. arp -a shows MAC addresses of other devices in the ARP cache, not the local system.

D. nslookup queries DNS records and doesn’t display MAC information.

Comprehensive and Detailed Explanation From Exact Extract:

Data Loss Prevention (DLP) solutions scan messages and file transfers for sensitive data patterns, such as credit card numbers or social security numbers. DLP can block, log, or alert when such information is detected attempting to leave the organization.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Data Protection and Compliance Controls”:

“DLP systems identify and restrict the transmission of sensitive data such as credit card numbers, enforcing organizational data handling policies.”

Other options:

A. IDS detects threats but doesn’t enforce data content policies.

B. Egress filtering restricts destinations but not content.

D. Encryption protects data in transit, not its content compliance.

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Comprehensive and Detailed Explanation From Exact Extract:

NetFlow provides flow-level metadata about IP traffic without requiring inline deployment. It summarizes who is talking to whom, for how long, and how much data was exchanged. It’s ideal for behavior monitoring and threat detection when sent to a SIEM for correlation and analysis.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “NetFlow and Network Telemetry”:

“NetFlow provides visibility into traffic patterns, which can be used for anomaly detection and security analysis when integrated with SIEM platforms.”

Other options:

A. Syslog shows event-level data, but not network behavior.

B. SNMP traps monitor device status, not traffic behavior.

C. SSL decryption is complex and requires inline positioning.

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Comprehensive and Detailed Explanation From Exact Extract:

Quality of Service (QoS) ensures that latency-sensitive traffic like videoconferencing is prioritized over bandwidth-heavy but delay-tolerant tasks like report generation. Implementing QoS on network switches allows the network to differentiate traffic types and ensure sufficient bandwidth for critical applications during congestion.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Traffic Prioritization and QoS”:

“QoS enables classification and prioritization of network traffic to ensure performance of mission-critical or real-time applications such as voice and video.”

Other options:

A. Scheduling tasks outside business hours is not scalable or reliable.

B. Load balancing applies to servers, not prioritization of LAN traffic.

D. Buying higher-end switches is costly and may not resolve contention under load.

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Comprehensive and Detailed Explanation From Exact Extract:

To accommodate 200 devices in IT and 2,000 devices in Sales, subnetting must allow for appropriate address allocation:

/22 provides 1,024 addresses → sufficient for IT (200 users)

/15 provides 65,536 addresses → more than sufficient for Sales (2,000 users)

Option C ensures both departments are placed in separate, appropriately sized segments within the private 10.0.0.0/8 range.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “IP Addressing and Subnetting”:

“Proper subnetting ensures sufficient host addresses and supports future growth. Network segmentation improves manageability and security.”

Other options:

A. /30 provides only 2 usable IPs — insufficient for IT.

B & D: /24 and /25 do not support 2,000 users in Sales.

B & D also misallocate resources inefficiently.

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Comprehensive and Detailed Explanation From Exact Extract:

Weighted load balancing allows distribution of traffic based on server capacity or assignedweights. In this case, the new node should receive a weight of 3, and each of the three older nodes a weight of 1. This ensures the new node handles the same total number of requests as the other three combined (3:1:1:1).

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Load Balancing Algorithms and Traffic Distribution”:

“Weighted load balancing accounts for node capacity, distributing requests proportionally according to performance capability or administrator-defined weights.”

Other options:

A. Round-robin sends traffic equally to all servers regardless of capacity.

B. Load-based requires dynamic performance measurement and is more complex.

C. Least connections may work in certain cases, but doesn’t guarantee proportional traffic split based on server performance.

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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.

Comprehensive and Detailed Explanation From Exact Extract:

Quality of Service (QoS) rules at the internet router can prioritize VoIP traffic over other data, such as cloud document access. VoIP is sensitive to latency and jitter, and configuring QoS ensures that voice packets are prioritized during congestion. This is the most cost-effective solution that doesn’t require additional infrastructure.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Traffic Management and Prioritization”:

“QoS policies are essential for ensuring that latency-sensitive traffic, such as VoIP, is prioritized over other types of data, particularly in bandwidth-limited scenarios.”

Other options:

A. Adding a second internet link is effective but not cost-efficient.

C. VLANs provide segmentation but don’t guarantee bandwidth prioritization.

D. Changing the codec may reduce bandwidth usage, but doesn’t address prioritization directly.

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Comprehensive and Detailed Explanation From Exact Extract:

This scenario describes a classic example of social engineering. An attacker impersonated the help desk and convinced the user to change their password, likely to one the attacker controlled. Social engineering attacks manipulate human behavior to bypass technical security measures.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Social Engineering Threats”:

“Social engineering involves manipulating individuals to perform actions or divulge confidential information, such as passwords, often by impersonating trusted entities like IT support.”

Other options:

A. Initialization vector relates to encryption vulnerabilities.

B. On-path (formerly man-in-the-middle) requires network interception, which is not described here.

C. Evil twin is a rogue Wi-Fi AP attack, not applicable to this VPN login context.

Comprehensive and Detailed Explanation From Exact Extract:

A SIEM (Security Information and Event Management) solution ingests log data from multiple sources, correlates events, detects anomalies, and generates alerts based on predefined or dynamic rules. This makes SIEM the ideal solution for centralized logging and real-time threat detection.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Security Monitoring and Log Correlation”:

“SIEM platforms aggregate, normalize, and analyze logs from diverse sources, providing real-time alerts and incident response support.”

Other options:

A. Syslog is a transport protocol — it doesn’t correlate or alert.

B. Event log monitoring is limited to individual systems.

C. Log management stores logs but doesn’t perform analysis or alerting.

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Comprehensive and Detailed Explanation From Exact Extract:

B. Single Sign-On (SSO) — SSO enables users to authenticate once using a unified set of credentials and gain access to multiple applications. It improves user experience and simplifies identity management.

E. Conditional Access Policy — This supports dynamic enforcement of access policies based on user location, device, risk level, and session characteristics. It allows administrators to define rules such as only allowing access from authorized geographic regions and automatically enforcing session timeouts or requiring reauthentication.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Identity and Access Management (IAM)”:

“SSO provides seamless authentication across services while reducing password fatigue and attack surfaces.”

“Conditional Access enforces access controls based on real-time conditions such as location, device compliance, and session context, supporting dynamic security postures.”

Other options:

A. Role-based access defines permissions but does not handle location or session control.

C. Static IP allocation does not offer user-based access controls.

D. MFA enhances security but is not directly aligned with all the listed requirements.

F. Risk-based authentication evaluates threat levels but does not handle session timeout or location enforcement directly.

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Comprehensive and Detailed Explanation From Exact Extract:

When building infrastructure for business units that process financial transactions (such as in the retail or banking sector), the architect must first understand all relevant compliance and regulatory requirements. These may include PCI DSS, SOX, or GDPR, depending on the nature of the data and jurisdiction. These regulations influence design decisions regarding encryption, segmentation, data retention, and logging.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Compliance and Regulatory Considerations”:

“Regulatory requirements such as PCI DSS, HIPAA, and others dictate the security controls, logging, data protection, and architectural design of infrastructure handling sensitive or financial data.”

Other options:

B. Statement of Work defines project scope, but doesn't include legal/compliance mandates.

C. Business case studies illustrate value or ROI, not security or compliance needs.

D. Internal reference architectures may help with standards but are based on already defined requirements.

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Comprehensive and Detailed Explanation From Exact Extract:

A Secure Web Gateway (SWG) provides cloud-based traffic filtering, URL filtering, SSL decryption, and content inspection without requiring traffic to be routed through an on-premises data center. It is ideal for both remote and hybrid users, enforcing security policies in a distributed environment.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Cloud-Based Security Solutions”:

“Secure Web Gateways allow cloud-hosted decryption and inspection of web traffic, enabling policy enforcement for remote and on-campus users without backhauling traffic to the data center.”

Other options:

B. Transit gateways connect VPCs and on-prem but don’t decrypt traffic.

C. VPNs provide encrypted tunnels but don’t inspect traffic.

D. IPS inspects traffic but is usually on-prem and not cloud-hosted.

E. NAC is used for access control, not traffic inspection.

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Comprehensive and Detailed Explanation From Exact Extract:

A private service endpoint allows the API to be exposed securely to a customer’s Virtual Private Cloud (VPC) without making it publicly accessible over the internet. This enables secure, private communication over the cloud provider’s backbone network while maintaining isolation and control over API access.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Cloud Networking and Connectivity”:

“Private service endpoints allow secure communication between cloud resources and customer environments without traversing the public internet, reducing exposure and enhancing compliance.”

This method is essential for SaaS providers aiming to securely integrate services with customer environments.

Other options:

A. Transit gateways provide large-scale connectivity but are more suited for multi-VPC or hybrid cloud environments.

B. Firewall rules alone do not restrict access to private-only networks.

C. VPC peering can work, but private endpoints are designed specifically for service-to-service communication.

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Comprehensive and Detailed Explanation From Exact Extract:

To meet the requirement of restricting inbound traffic and allowing outbound traffic, two components are most appropriate:

D. Firewall – A firewall enforces ingress and egress traffic policies. It can be configured to deny all inbound traffic by default and allow all outbound traffic, meeting the security policy requirement.

E. Network Security Group (NSG) – In cloud environments such as Azure, NSGs serve as virtual firewalls at the subnet or interface level. NSGs allow you to define rules that block or allow inbound and outbound traffic, and they are the preferred method for enforcing network access rules for cloud resources.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Cloud Network Security Configuration”:

“Network security groups and firewalls are key to enforcing inbound and outbound traffic restrictions in hybrid and public cloud environments.”

“NSGs are used to define network access control policies for cloud resources at the subnet or NIC level.”

Other options:

A. Application gateway controls HTTP/S traffic at Layer 7 but does not manage full access policy.

B. IPS detects/prevents malicious behavior but is not primarily used for general traffic restriction.

C. Port security restricts MAC addresses on switch ports, applicable in LANs, not cloud.

F. A screened subnet (DMZ) can provide additional isolation but is not required for basic traffic control.

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Comprehensive and Detailed Explanation From Exact Extract:

A. An explicit allow rule in the Network Security Group (NSG) permitting Server A (10.2.3.9) to communicate with Server B (10.2.2.7) ensures intra-cloud communication between segments.

C. A deny rule that blocks any inbound access from external sources (0.0.0.0/0 → internal range 10.2.0.0/16) effectively prevents unsolicited inbound traffic from the public internet, securing the internal servers.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Cloud Security Groups and Firewall Policies”:

“NSGs should be configured with least privilege principles. Allow intra-subnet or intra-application communication while explicitly denying unsolicited internet traffic.”

“Ingress and egress filtering policies should block all traffic by default and permit only what’s required.”

Other options:

B. Incorrect – this allows internal range to internet, which is not requested.

D & E. Apply to outbound policies, not relevant to the need to block inbound external access.

F. Incorrect – this denies internal resources from going outbound, not inbound protection.

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Comprehensive and Detailed Explanation From Exact Extract:

With GitOps, all infrastructure changes are tracked as code and committed to version-controlled repositories. When the main branch is protected, changes should not be committed directly. Instead, best practices require that a new feature or change branch be created, followed by a pull request (PR) for peer review and approval before merging into the protected branch.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Infrastructure as Code and GitOps”:

“In GitOps workflows, changes are made in feature branches, reviewed via pull requests, and merged into protected branches only after validation, ensuring auditability and control over infrastructure deployments.”

Other options:

A. Direct commits to protected branches are restricted and violate GitOps practices.

C. The development branch may exist, but the question specifies main is the default, and the correct process requires a PR.

D. Rebase is for integrating histories, not submitting approved changes.

Comprehensive and Detailed Explanation From Exact Extract:

Reference architectures are pre-defined templates or blueprints provided by vendors, standardsbodies, or industry alliances (e.g., NIST, CIS, vendor frameworks) that define recommended practices for secure and reliable infrastructure design. They help ensure alignment with compliance, security controls, and industry-recognized configurations.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Architecture Standards and Security Best Practices”:

“Reference architectures guide the implementation of secure, scalable, and compliant infrastructure. They embody industry best practices and reduce misconfiguration risks in cloud and hybrid environments.”

Other options:

B. Licensing agreements pertain to software usage rights, not security alignment.

C. SLAs define service expectations, not design standards.

D. MOUs are informal agreements between parties, not technical or security frameworks.

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Comprehensive and Detailed Explanation From Exact Extract:

According to the structured troubleshooting methodology outlined in the CNX-001 objectives, once a potential root cause is identified (in this case, a suspected firmware bug), the next step is to test the theory to confirm the cause before taking action. This helps prevent misdiagnosis and unnecessary configuration changes.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Structured Troubleshooting Methodology”:

“After identifying symptoms and forming a theory of probable cause, the next step is to test the theory to verify it is the actual cause of the problem.”

Other options:

A. Establishing a plan of action comes after confirming the cause.

C. Documenting lessons learned is the final step.

D. Implementing the solution should only occur after the issue is confirmed.

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Comprehensive and Detailed Explanation From Exact Extract:

According to the standard CompTIA troubleshooting methodology, once the issue has been identified and a solution has been implemented (e.g., failing over traffic to the backup link), the next logical step is to verify full system functionality. This ensures that the backup path is working as intended and that services have resumed properly for the users.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Troubleshooting Process”:

“After implementing the solution, it is critical to verify full system functionality to ensure the resolution has addressed the problem without causing unintended consequences.”

Other options:

A. Documenting lessons learned is the final step.

B. The plan of action should have been created before the failover.

C. Identifying the problem already occurred earlier in the scenario.

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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:

While resource usage metrics (CPU, memory, disk, network) are important, the missing context here is user demand. Adding "Concurrent users" helps correlate resource utilization spikes with actual user load. For performance monitoring in web applications, concurrent sessions provide crucial insight into whether performance issues are demand-related.

Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide — under “Performance Monitoring and User Metrics”:

“Monitoring user load metrics such as concurrent users provides insight into performance degradation and capacity planning. These are critical for identifying thresholds and auto-scaling requirements.”

Other options:

A. 404 errors indicate broken links but don’t explain performance issues.

C. Number of orders tracks business activity, not system strain.

D. Active incidents belong in an ITSM system, not real-time performance monitoring.

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