Dec-2025 N10-009 Study Material, Preparation Guide and PDF Download
Free N10-009 Certification Sample Questions with Online Practice Test
CompTIA N10-009 Exam Syllabus Topics:
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NEW QUESTION # 229
While troubleshooting a VoIP handset connection, a technician's laptop is able to successfully connect to network resources using the same port. The technician needs to identify the port on the switch. Which of the following should the technician use to determine the switch and port?
- A. LLDP
- B. netstat
- C. IKE
- D. VLAN
Answer: A
Explanation:
Link Layer Discovery Protocol (LLDP) is a network protocol used for discovering devices and their capabilities on a local area network, primarily at the data link layer (Layer 2). It helps in identifying the connected switch and the specific port to which a device is connected. When troubleshooting a VoIP handset connection, the technician can use LLDP to determine the exact switch and port where the handset is connected. This protocol is widely used in network management to facilitate the discovery of network topology and simplify troubleshooting.
Other options such as IKE (Internet Key Exchange), VLAN (Virtual LAN), and netstat (network statistics) are not suitable for identifying the switch and port information. IKE is used in setting up secure IPsec connections, VLAN is used for segmenting networks, and netstat provides information about active connections and listening ports on a host but not for discovering switch port details.
NEW QUESTION # 230
A company has observed increased user traffic to gambling websites and wants to limit this behavior on work computers. Which of the following should the company most likely implement?
- A. Content filter
- B. Screened subnet
- C. Port security
- D. ACLs
Answer: A
Explanation:
A content filter blocks access to specific websites based on category, URL, or keywords. This is the best solution to restrict gambling websites.
Breakdown of Options:
A . ACLs - Control network access, not specific web content.
B . Content filter - ✅ Correct answer. Used to block access to unwanted websites.
C . Port security - Prevents unauthorized device connections, not web traffic filtering.
D . Screened subnet - A DMZ isolates public-facing servers, not user restrictions.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 3.3: Given a scenario, implement network security measures.
NEW QUESTION # 231
An IT manager needs to connect ten sites in a mesh network. Each needs to be secured with reduced provisioning time. Which of the following technologies will best meet this requirement?
- A. NFV
- B. SD-WAN
- C. VXLAN
- D. VPN
Answer: B
Explanation:
* Definition of SD-WAN:
* Software-Defined Wide Area Network (SD-WAN) is a technology that simplifies the management and operation of a WAN by decoupling the networking hardware from its control mechanism. It allows for centralized management and enhanced security.
* Benefits of SD-WAN:
* Reduced Provisioning Time: SD-WAN enables quick and easy deployment of new sites with centralized control and automation.
* Security: Incorporates advanced security features such as encryption, secure tunneling, and
* integrated firewalls.
* Scalability: Easily scales to accommodate additional sites and bandwidth requirements.
* Comparison with Other Technologies:
* VXLAN (Virtual Extensible LAN): Primarily used for network virtualization within data centers.
* VPN (Virtual Private Network): Provides secure connections but does not offer the centralized management and provisioning efficiency of SD-WAN.
* NFV (Network Functions Virtualization): Virtualizes network services but does not specifically address WAN management and provisioning.
* Implementation:
* SD-WAN solutions are implemented by deploying edge devices at each site and connecting them to a central controller. This allows for dynamic routing, traffic management, and security policy enforcement.
References:
* CompTIA Network+ course materials and networking solution guides.
NEW QUESTION # 232
A network technician needs to resolve some issues with a customer's SOHO network. The customer reports that some of the PCs are not connecting to the network, while others appear to be working as intended.
INSTRUCTIONS
Troubleshoot all the network components.
Review the cable test results first, then diagnose by clicking on the appropriate PC, server, and Layer 2 switch.
Identify any components with a problem and recommend a solution to correct each problem.
If at any time you would like to bring back
the initial state of the simulation, please
click the Reset All button.
Answer:
Explanation:
See the answer and solution below:
Explanation:
A computer network diagram with many boxes and text AI-generated content may be incorrect.
NEW QUESTION # 233
A company recently rearranged some users' workspaces and moved several users to previously used workspaces. The network administrator receives a report that all of the users who were moved are having connectivity issues. Which of the following is the MOST likely reason?
- A. Ports are trunk ports.
- B. Ports are having an MDIX issue.
- C. Ports have an incorrect native VLAN.
- D. Ports are error-disabled.
Answer: C
Explanation:
The most likely cause is that the switchports were previously configured for a different VLANthan the one the users' computers are on. If the native VLAN on the port doesn't match the end device's VLAN, communication fails.
* A. Ports are error-disabled: Would result in no link at all, not common across multiple ports unless a violation occurred.
* C. MDIX issue: Auto-MDIX eliminates most crossover problems on modern switches.
* D. Ports are trunk ports: While possible, typical user devices should be on access ports, but if the port is incorrectly trunked, it can cause similar issues. However, "incorrect VLAN" is more precise here.
#Reference:
CompTIA Network+ N10-009 Official Objectives: 2.3 - Given a scenario, configure and verify VLANs.
NEW QUESTION # 234
Which of the following disaster recovery concepts is calculated by dividing the total hours of operation by the total number of units?
- A. RTO
- B. MTBF
- C. MTTR
- D. RPO
Answer: B
Explanation:
* Introduction to Disaster Recovery Concepts:
* Disaster recovery involves strategies and measures to ensure business continuity and data recovery in the event of a disaster.
* Mean Time Between Failures (MTBF):
* MTBF is a reliability metric used to predict the time between failures of a system during operation. It is calculated by dividing the total operational time by the number of failures.
* Formula:MTBF=Total Operational TimeNumber of Failures\text{MTBF} = \frac{\text{Total Operational Time}}{\text{Number of Failures}}MTBF=Number of FailuresTotal Operational Time
* This metric helps in understanding the reliability and expected lifespan of systems and components.
* Example Calculation:
* If a server operates for 1000 hours and experiences 2 failures, the MTBF is:
MTBF=1000 hours2=500 hours\text{MTBF} = \frac{1000 \text{ hours}}{2} = 500 \text{ hours}MTBF=21000 hours=500 hours
* Explanation of the Options:
* A. MTTR (Mean Time to Repair):The average time required to repair a system after a failure.
* B. MTBF (Mean Time Between Failures):The correct answer, representing the average time between failures.
* C. RPO (Recovery Point Objective):The maximum acceptable amount of data loss measured in time.
* D. RTO (Recovery Time Objective):The target time set for the recovery of IT and business activities after a disaster.
* Conclusion:
* MTBF is a crucial metric in disaster recovery and system reliability, helping organizations plan maintenance and predict system performance.
References:
* CompTIA Network+ guide explaining MTBF, MTTR, RPO, and RTO concepts and their calculations (see pageRef 10†How to Use Cisco Packet Tracer).
NEW QUESTION # 235
A company is purchasing a 40Gbps broadband connection service from an ISP. Which of the following should most likely be configured on the 10G switch to take advantage of the new service?
- A. 802.1Q tagging
- B. Jumbo frames
- C. Half duplex
- D. Link aggregation
Answer: D
Explanation:
Since the switch supports only 10Gbps per port, achieving 40Gbps throughput requires link aggregation (LACP), which combines multiple 10Gbps links into one logical interface for higher bandwidth.
Breakdown of Options:
A: 802.1Q tagging - VLAN tagging helps segment traffic but does not increase throughput.
B: Jumbo frames - Jumbo frames reduce overhead but do not increase bandwidth.
C: Half duplex - Half duplex restricts communication, reducing performance instead of improving it.
D: Link aggregation - Correct answer. LACP combines multiple 10Gbps links to provide a 40Gbps connection.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.2: Compare and contrast network topologies and technologies.
IEEE 802.3ad: Link Aggregation Control Protocol (LACP)
NEW QUESTION # 236
Users are unable to access files on their department share located on flle_server 2. The network administrator has been tasked with validating routing between networks hosting workstation A and file server 2.
INSTRUCTIONS
Click on each router to review output, identity any Issues, and configure the appropriate solution If at any time you would like to bring back the initial state of trie simulation, please click the reset All button;
Answer:
Explanation:
See the solution configuration below in Explanation.
Explanation:
A screenshot of a computer AI-generated content may be incorrect.
A screenshot of a computer AI-generated content may be incorrect.
A screenshot of a computer AI-generated content may be incorrect.
NEW QUESTION # 237
A network administrator is connecting two Layer 2 switches in a network. These switches must transfer data in multiple networks. Which of the following would fulfill this requirement?
- A. Jumbo frames
- B. Native VLAN
- C. 802.1Q tagging
- D. Link aggregation
Answer: C
Explanation:
802.1Q tagging, also known as VLAN tagging, is used to identify VLANs on a trunk link between switches. This allows the switches to transfer data for multiple VLANs (or networks) over a single physical connection. This method ensures that traffic from different VLANs is properly separated and managed across the network.Reference: CompTIA Network+ study materials.
NEW QUESTION # 238
SIMULATION
You have been tasked with implementing an ACL on the router that will:
1. Permit the most commonly used secure remote access technologies from the management network to all other local network segments
2. Ensure the user subnet cannot use the most commonly used remote access technologies in the Linux and Windows Server segments.
3. Prohibit any traffic that has not been specifically allowed.
INSTRUCTIONS
Use the drop-downs to complete the ACL
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
See the answe rand solution below
Explanation:
NEW QUESTION # 239
Which of the following is a cost-effective advantage of a split-tunnel VPN?
- A. Monitoring detects insecure machines on the company's network.
- B. More bandwidth is required on the company's internet connection.
- C. Web traffic is filtered through a web filter.
- D. Cloud-based traffic flows outside of the company's network.
Answer: D
Explanation:
A split-tunnel VPN allows some traffic to be routed through the VPN while other traffic goes directly to the internet. This setup offers several advantages, with a primary one being cost-effectiveness due to cloud-based traffic not consuming company bandwidth.
* Bandwidth Utilization: Split-tunnel VPNs reduce the amount of traffic passing through the company's network, freeing up bandwidth for other uses.
* Performance: By allowing internet-bound traffic to bypass the VPN, it can reduce latency and improve the performance for users accessing cloud services directly.
* Cost Savings: Reduced load on the company's VPN infrastructure can lead to lower costs in terms of both hardware and bandwidth.
Network References:
* CompTIA Network+ N10-007 Official Certification Guide: Covers VPN types, including split-tunnel configurations and their advantages.
* Cisco Networking Academy: Discusses VPN technologies and the benefits of split-tunneling.
* Network+ Certification All-in-One Exam Guide: Provides detailed information on VPN setups, including the cost-effectiveness of split-tunnel VPNs.
By allowing cloud-based traffic to flow outside the company's network, a split-tunnel VPN optimizes resource usage and enhances the overall network performance without incurring extra costs for bandwidth.
NEW QUESTION # 240
Before using a guest network, an administrator requires users to accept the terms of use Which of the following is the best way to accomplish this goal?
- A. WPA2 encryption
- B. Pre-shared key
- C. Captive portal
- D. Autonomous access point
Answer: C
Explanation:
A captive portal is a web page that users must view and interact with before being granted access to a network. It is commonly used in guest networks to enforce terms of use agreements. When a user connects to the network, they are redirected to this portal where they must accept the terms of use before proceeding. This method ensures that users are aware of and agree to the network's policies, making it the best choice for this scenario.
NEW QUESTION # 241
SIMULATION
A network technician needs to resolve some issues with a customer's SOHO network. The customer reports that some of the PCs are not connecting to the network, while others appear to be working as intended.
INSTRUCTIONS
Troubleshoot all the network components.
Review the cable test results first, then diagnose by clicking on the appropriate PC, server, and Layer 2 switch.
Identify any components with a problem and recommend a solution to correct each problem.
If at any time you would like to bring back the initial state of the simulation, please dick the Reset All button.
Answer:
Explanation:
NEW QUESTION # 242
Which of the following best explains the role of confidentiality with regard to data at rest?
- A. Data can be accessed remotely with proper training.
- B. Data can be accessed after verifying the hash.
- C. Data can be accessed by anyone on the administrative network.
- D. Data can be accessed after privileged access Is granted.
Answer: D
Explanation:
Confidentiality with Data at Rest: Confidentiality is a core principle of data security, ensuring that data stored (at rest) is only accessible to authorized individuals. This protection is achieved through mechanisms such as encryption, access controls, and permissions.
Privileged Access: The statement "Data can be accessed after privileged access is granted" aligns with the confidentiality principle, as it restricts data access to users who have been granted specific permissions or roles. Only those with the appropriate credentials or permissions can access the data.
NEW QUESTION # 243
A university is implementing anew campus wireless network. A network administrator needs to configure the network to supporta large number of devices and high-bandwidth demands from students.
Which of the followingwireless technologiesshould the administrator consider for this scenario?
- A. Bluetooth
- B. 5G
- C. LTE
- D. Wi-Fi 6E
Answer: D
Explanation:
Comprehensive and Detailed Explanation:
Wi-Fi 6Eis thebest choiceforhigh-density environments, as it provideshigher speeds, more capacity, and lower latency.
NEW QUESTION # 244
Which of the following VPN types provides secure remote access to the network resources through a web portal?
- A. Direct connect
- B. Clientless
- C. Site-to-site
- D. Proxy
Answer: B
Explanation:
Clientless VPNsallow users to access network resources through asecure web portal using a browser, with no VPN software needed. This is ideal for occasional access to internal resources via HTTPS.
* A. Proxyis a gateway for accessing web content, not a VPN.
* C. Site-to-siteVPN connects entire networks, not individual users.
* D. Direct Connectusually refers to dedicated cloud connections, not VPNs.
#Reference:
CompTIA Network+ N10-009 Official Objectives: 3.3 - Given a scenario, configure and deploy common VPN technologies.
NEW QUESTION # 245
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