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CompTIA CNX-001 Exam Syllabus Topics:
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NEW QUESTION # 19
A network administrator recently deployed new Wi-Fi 6E access points in an office and enabled 6GHz coverage. Users report that when they are connected to the new 6GHz SSID, the performance is worse than the 5GHz SSID. The network administrator suspects that there is a source of 6GHz interference in the office.
Using the troubleshooting methodology, which of the following actions should the network administrator do next?
- A. Use a spectrum analyzer and check the 6GHz spectrum.
- B. Change the channels being used by the 6GHz radios in the APs.
- C. Test to see if the changes have improved network performance.
- D. Document the list of channels that are experiencing interference.
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Using a spectrum analyzer to inspect the 6GHz frequency range allows the administrator to confirm the presence and source of interference. This step aligns with the "identify the problem" phase of the CompTIA troubleshooting methodology. Before making changes or documenting channels, the administrator must validate whether interference exists and collect diagnostic data.
Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide - under "Troubleshooting Methodology and Wireless Interference":
"Spectrum analyzers provide a visual representation of frequency usage and interference in wireless bands, allowing administrators to isolate the root cause of degraded performance before implementing corrective actions." Other options:
* A. Testing performance (Step 5 in the methodology) comes after identifying and resolving the issue.
* C. Documentation is performed during the final step of troubleshooting.
* D. Changing channels without evidence may worsen interference if the problem is not confirmed.
NEW QUESTION # 20
A cafe uses a tablet-based point-of-sale system. Customers are complaining that their food is taking too long to arrive. During an investigation, the following is noticed:
Every kitchen printer did not print the orders.
Payments are processing correctly.
The cloud-based system has record of the orders.
This issue occurred when the cafe was busy.
Which of the following is the best way to mitigate this issue?
- A. Updating the application
- B. Upgrading the kitchen printers' wireless dongles
- C. Adding an access point exclusively for the kitchen
- D. Assigning the kitchen printers static IP addresses
Answer: C
Explanation:
By dedicating a separate Wi-Fi access point to the printers, you isolate their traffic from the customer-facing tablets. This prevents congestion during busy periods, ensuring orders reliably print even when the main network is under heavy load.
NEW QUESTION # 21
A SaaS company's new service currently is being provided through four servers. The company's end users are having connection issues, which is affecting about 25% of the connections. Which of the following ismostlikely the root cause of this issue?
- A. Load balancing is configured with a health check in front of these servers, and one of these servers is unavailable.
- B. The service is using weighted load balancing with 40% of the traffic on server A, 20% on server B,
20% on server C, and server D is down. - C. The service is using a least-connection load-balancing method with one server down.
- D. The service is using round-robin load balancing through a DNS server with one server down.
Answer: D
Explanation:
With simple round-robin DNS distributing 25% of requests to each of four servers, a single server outage directly causes exactly 25% of connections to fail, matching the reported impact.
NEW QUESTION # 22
A network architect is designing a new network for a rural hospital system. Given the following requirements:
*Highly available
*Consistent data transmission
*Resilient to simultaneous failures
Which of the following topologies should the architect use?
- A. Hub-and-spoke
- B. Star
- C. Collapsed core
- D. Mesh
Answer: B
Explanation:
A full-mesh topology provides multiple redundant, direct paths between every site, eliminating single points of failure, ensuring consistent transmission even if one or more links fail, and maximizing overall availability.
NEW QUESTION # 23
A cloud network engineer needs to enable network flow analysis in the VPC so headers and payload of captured data can be inspected. Which of the following should the engineer use for this task?
- A. Traffic mirroring
- B. Application monitoring
- C. Network flows
- D. Syslog service
Answer: A
Explanation:
VPC Traffic Mirroring lets you capture copies of inbound and outbound network traffic, full packet headers and payload, and send them to appliances or analysis tools for deep inspection, which goes beyond the metadata provided by standard flow logs.
NEW QUESTION # 24
A network engineer needs to implement a cloud native solution. The solution must allow the recording of network conversation metadata of the host and appliances attached to a VPC. Which of the following will accomplish these goals with the least effort?
- A. Enabling network flow
- B. Configuring SNMP traps
- C. Installing a cloud monitoring agent
- D. Implementing QoS network tagging
Answer: A
Explanation:
Enabling VPC (or equivalent) flow logs is the native, zero-agent way to capture metadata about every network conversation, source/destination IPs, ports, protocols, bytes transferred, across both hosts and managed appliances in your virtual network. It requires minimal setup (just a checkbox or API call) and scales automatically with your VPC.
NEW QUESTION # 25
An outage occurred after a software upgrade on core switching. A network administrator thinks that the firmware installed had a bug. Which of the following should the network administrator do next?
- A. Implement the solution.
- B. Establish a plan of action to resolve the issue.
- C. Test the theory to determine cause.
Document lessons learned.
Answer: C
Explanation:
Before taking corrective action, you need to verify that the new firmware is indeed the root cause, such as by rolling back to the previous version in a controlled test or reproducing the failure in a lab, so you're sure your fix addresses the actual problem.
NEW QUESTION # 26
A company hosts a cloud-based e-commerce application and only wants the application accessed from certain locations. The network team configures a cloud firewall with WAF enabled, but users can access the application globally. Which of the following should the network team do?
- A. Configure a NAT gateway.
- B. Reconfigure WAF rules.
- C. Configure geo-restriction.
- D. Implement a CDN.
Answer: C
Explanation:
Geo-restriction lets you block or allow traffic based on the requester's geographic region, preventing access from locations you haven't authorized.
NEW QUESTION # 27
A network architect needs to build a new data center for a large company that has business units that process retail financial transactions. Which of the following information should the architect request from the company?
- A. Internal reference architecture
- B. Statement of work
- C. Regulatory requirements
- D. Business case study
Answer: C
Explanation:
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.
NEW QUESTION # 28
A network architect is designing an expansion solution for the branch office network and requires the following business outcomes:
* Maximize cost savings with reduced administration overhead
* Easily expand connectivity to the cloud
* Use cloud-based services to the branch offices
Which of the following should the architect do to best meet the requirements?
- A. Design point-to-site branch connectivity for offices to headquarters; deploy ExpressRoute and/or DirectConnect between headquarters and the cloud; use headquarters connectivity to connect to the cloud provider.
- B. Design a dark fiber solution for headquarters and branch offices' connectivity; deploy point-to-site VPN between headquarters and the cloud provider; use the headquarters connectivity to the cloud provider.
- C. Design an MPLS architecture for the branch offices and site-to-site VPN between headquarters and branch offices; use site-to-site connectivity to the cloud provider.
- D. Design a SD-WAN solution to integrate with the cloud provider; use SD-WAN to connect branch offices to the cloud provider.
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
SD-WAN (Software-Defined Wide Area Networking) is ideal for enterprises that want to simplify WAN management, reduce operational overhead, and optimize connectivity to cloudservices. SD-WAN provides intelligent traffic routing, dynamic path selection, and direct-to-cloud access without backhauling traffic through a central data center.
Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide - under "SD-WAN and Cloud Connectivity":
"SD-WAN enables efficient cloud access from branch offices and simplifies management through centralized policy control. It is cost-effective and reduces the need for complex hardware configurations and manual routing." Other options:
* B. Adds latency and overhead by backhauling through headquarters.
* C. MPLS is expensive and less flexible than SD-WAN.
* D. Dark fiber is high-cost and not scalable for cloud-first architectures.
NEW QUESTION # 29
A cloud architect must recommend an architecture approach for a new medical application that requires the lowest downtime possible. Which of the following is the best application deployment strategy given the high- availability requirement?
- A. Four different availability zones using an active-passive topology in a single region
- B. Four different availability zones using an active-active topology in a single region
- C. Two different availability zones (per region) using an active-active topology in two different regions
- D. Two different availability zones (per region) using an active-passive topology in two different regions
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Using an active-active deployment across two regions with at least two Availability Zones (AZs) each provides the highest level of fault tolerance and geographic redundancy. This ensures continuity even if an entire region or multiple zones become unavailable. In regulated sectors such as healthcare, this meets strict availability and disaster recovery requirements.
Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide - under "High Availability and Multi- Region Design":
"Active-active configurations across multiple regions and availability zones maximize uptime and ensure failover in the event of localized or regional failures." Other options:
* B. Active-passive introduces delays in failover.
* C. Active-active in one region offers no geographic redundancy.
* D. Active-passive in two regions is slower and less efficient during failover.
NEW QUESTION # 30
A company is experiencing Wi-Fi performance issues. Three Wi-Fi networks are available, each running on the 2.4 GHz band and on the same channel. Connecting to each Wi-Fi network yields slow performance.
Which of the following channels should the networks be configured to?
- A. Channel 1, Channel 6, and Channel 11
- B. Channel 3, Channel 5, and Channel 10
- C. Channel 1, Channel 2, and Channel 3
- D. Channel 2, Channel 4, and Channel 9
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In the 2.4 GHz Wi-Fi band, channels overlap due to how the frequency spectrum is divided. To prevent co- channel and adjacent-channel interference, only non-overlapping channels should be used. According to the IEEE 802.11 standard and best practices outlined in the CompTIA CloudNetX CNX-001 Study Guide under
"Wireless Network Optimization," the three non-overlapping channels in the 2.4 GHz band are:
* Channel 1 (2.412 GHz)
* Channel 6 (2.437 GHz)
* Channel 11 (2.462 GHz)
These channels are spaced far enough apart to avoid interference, even when operating in close proximity.
Using overlapping channels (as in options A, B, and D) causes signal degradation and poor performance due to increased contention and retransmissions.
Relevant Extract from CompTIA CloudNetX CNX-001:
"Wi-Fi networks operating on the 2.4 GHz band should use channels 1, 6, and 11 to ensure maximum throughput and minimal interference in environments with multiple access points."
NEW QUESTION # 31
A network architect must design a new branch network that meets the following requirements:
*No single point of failure
*Clients cannot be impacted by changes to the underlying medium
*Clients must be able to communicate directly to preserve bandwidth
Which of the following network topologies should the architect use?
- A. Star
- B. Spine-and-leaf
- C. Hub-and-spoke
- D. Mesh
Answer: D
Explanation:
A full-mesh topology gives every node redundant paths to every other node, eliminating any single point of failure, and lets clients communicate directly over the optimal link without depending on an intermediate hub or core.
NEW QUESTION # 32
A network engineer is designing a Layer 2 deployment for a company that occupies several floors in an office building. The engineer decides to make each floor its own VLAN but still allow for communication between all user VLANs. The engineer also wants to reduce the time necessary for STP convergence to occur when new switches come online. Which of the following should the engineer enable to accomplish this goal?
- A. Tagging
- B. Priority
- C. BPDU Guard
- D. Portfast
Answer: D
Explanation:
Enabling PortFast on access ports lets them immediately enter the forwarding state, skipping the STP listening
/learning timers, and dramatically speeds up convergence when switches or end-stations come online.
NEW QUESTION # 33
As part of a project to modernize a sports stadium and improve the customer service experience for fans, the stadium owners want to implement a new wireless system. Currently, all tickets are electronic and managed by the stadium mobile application. The new solution is required to allow location tracking precision within 5ft (1.5m) of fans to deliver the following services:
* Emergency/security assistance
* Mobile food order
* Event special effects
* Raffle winner location displayed on the giant stadium screen
Which of the following technologies enables location tracking?
- A. SSID
- B. NFC
- C. IoT
- D. BLE
Answer: D
Explanation:
BLE (Bluetooth Low Energy) is a wireless personal area network (WPAN) technology designed for applications that require lower energy consumption and reduced cost while maintaining a communication range similar to classic Bluetooth. BLE supportslocation tracking with an accuracy range typically between 1 to 2 meters (approximately 3 to 6 feet), making it ideal for applications that demandfine-grained location services, such as stadium services requiring real-time user proximity data.
According to theCompTIA CloudNetX CNX-001 Official Objectives, under theNetwork Architecture domain, specifically in the subdomain:
"Wireless Technologies: Identify capabilities of BLE, NFC, RFID, and IoT devices within a network environment,"it is outlined that:
* "BLE enables proximity-based services and real-time indoor location tracking with high accuracy when used with beacon infrastructure."
* "BLE beacons can be deployed throughout a physical space, transmitting signals received by mobile applications to determine a user's location within a few feet."
* "BLE is widely adopted for use cases including indoor navigation, asset tracking, and personalized user engagement, making it a critical technology for modern high-density venues such as stadiums." In comparison:
* SSIDmerely identifies a wireless network and has no location tracking function.
* NFCrequires close contact (under 4 cm), and is not suitable for continuous or broad-range tracking.
* IoTis an overarching category that includes connected devices and sensors; however, IoT is not a standalone location tracking technology. It may include BLE as a component, butBLE specifically provides the precise location tracking functionality.
These distinctions are explicitly addressed in theCompTIA CloudNetX CNX-001 Study Guide, under the section:
* "Emerging Network Technologies and Architectures", where BLE is described as a key enabling technology for context-aware and location-based services in enterprise and public environments.
NEW QUESTION # 34
A network engineer is installing new switches in the data center to replace existing infrastructure. The previous network hardware had administrative interfaces that were plugged into the existing network along with all other server hardware on the same subnet. Which of the following should the engineer do to better secure these administrative interfaces?
- A. Upgrade all of the switch firmware to the latest hardware levels.
- B. Set the administrative interfaces and the network switch ports on the same VLAN.
- C. Disable unused physical ports on the switches to keep unauthorized users out.
- D. Connect the switch management ports to a separate physical network.
Answer: D
Explanation:
Segregating management interfaces onto their own dedicated network ensures that administrative access is isolated from general user and server traffic, greatly reducing the attack surface and preventing lateral movement if the production network is compromised.
NEW QUESTION # 35
A network engineer is working on securing the environment in the screened subnet. Before penetration testing, the engineer would like to run a scan on the servers to identify the OS, application versions, and open ports. Which of the following commands should the engineer use to obtain the information?
- A. nmap -A 10.10.10.0/28
- B. nc -v -n 10.10.10.x 1-1000
- C. hping3 -1 10.10.10.x -rand-dest -I eth0
- D. tcpdump -ni eth0 src net 10.10.10.0/28
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
nmap -A performs aggressive scanning, which includes OS detection, version detection, script scanning, and traceroute - exactly what is required in this case. It's the most effective and commonly used tool for comprehensive network reconnaissance prior to security testing.
Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide - under "Security Scanning and Reconnaissance Tools":
"Nmap supports comprehensive scanning options, including OS fingerprinting, service version detection, and port scanning, enabling detailed pre-penetration testing assessments." Other options:
* A. tcpdump is for packet capture, not scanning.
* C. nc (netcat) is a port scanning tool, but it lacks OS/app detection.
* D. hping3 is a packet generator, not suitable for full-service scanning.
NEW QUESTION # 36
A network engineer is establishing a wireless network for handheld inventory scanners in a manufacturing company's warehouse. The engineer needs an authentication mechanism for these scanners that uses the Wi-Fi network and works with the company's Active Directory. The business requires that the solution authenticate the users and authorize the scanners. Which of the following provides the best solution for authentication and authorization?
- A. PKI
- B. LDAP
- C. TACACS+
- D. RADIUS
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
RADIUS (Remote Authentication Dial-In User Service) is the best-fit protocol for this requirement. It supports both authentication and authorization and is widely used in Wi-Fi network environments for client device authentication using credentials stored in centralized directories such as Active Directory.
RADIUS integrates seamlessly with enterprise authentication sources and supports EAP (Extensible Authentication Protocol), making it compatible with Wi-Fi-based client devices. It also allows for role-based access control, enabling policy enforcement specific to device types (e.g., inventory scanners).
Relevant Extract from CompTIA CloudNetX CNX-001 Study Guide - "Authentication and Authorization Technologies":
"RADIUS provides centralized authentication, authorization, and accounting (AAA) services and is commonly used for securing wireless access in conjunction with Active Directory."
"Organizations use RADIUS to manage Wi-Fi authentication for user devices and enforce security policies during access attempts." Using a RADIUS server with 802.1X on the Wi-Fi infrastructure allows the scanners (and their users) to be authenticated against Active Directory and mapped to the correct authorization policies. TACACS+ is geared toward device management, LDAP alone doesn't handle the Wi-Fi 802.1X handshake, and PKI by itself wouldn't provide the user-to-device authorization flow needed. RADIUS gives you both authentication and authorization tied into AD.
NEW QUESTION # 37
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