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CompTIA N10-009 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.
Topic 2
  • Selection and configuration of wireless devices.
Topic 3
  • Cloud concepts and connectivity options, and Common networking ports.
Topic 4
  • Networking Concepts: For network administrators and IT support professionals, this domain covers
Topic 5
  • Network Security: This section of the exam for cybersecurity specialists and network security administrators covers the importance of basic network security concepts, Various types of attacks and their impact on the network, application of network security features, defense techniques, and solutions.| Network Troubleshooting: For help desk technicians and network support specialists, this section covers troubleshooting methodology, troubleshooting common cabling and physical interface issues, troubleshooting common issues with network services, and use of appropriate tools or protocols to solve networking issues.

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CompTIA Network+ Certification Exam Sample Questions (Q249-Q254):

NEW QUESTION # 249
Which of the following is the best use case of a site-to-site VPN?

Answer: C

Explanation:
A site-to-site VPN securely connects two networks over an untrusted network such as the internet by encrypting traffic between them, protecting data in transit.


NEW QUESTION # 250
Which of the following helps a network administrator understand security risk from external malicious actors and offers insights on which threats to mitigate?

Answer: D

Explanation:
The CIA triad (Confidentiality, Integrity, Availability) is a foundational security model used in Network+ (N10-009) to evaluate risk and guide prioritization of mitigations. By categorizing assets and threats based on how they could impact confidentiality (data exposure), integrity (unauthorized alteration), or availability (service disruption), administrators can better understand which attacks from external actors matter most to the business and which controls to apply first. For example, a public-facing portal might prioritize availability protections (DDoS mitigation, redundancy), while sensitive customer records demand strong confidentiality controls (encryption, access control), and financial systems require integrity controls (logging, validation, change control). This model helps translate "threats" into business impact, which is central to deciding what to mitigate.
Compliance benchmarks support meeting regulatory/industry requirements, but they don't inherently provide a conceptual lens for analyzing external attacker impact across all systems. SAML is a federation
/authentication standard, not a risk model. A honeypot can provide insight into attacker behavior, but it doesn' t broadly structure risk prioritization the way CIA does. Therefore, CIA triad is the best answer.


NEW QUESTION # 251
Which of the following offers the ability to manage access at the cloud VM instance?

Answer: C

Explanation:
Security groups in cloud environments act as virtual firewalls for VM instances, controlling inbound and outbound traffic based on specified rules.


NEW QUESTION # 252
The leadership team is updated on the results of an approved change request after a breach. Which of the following troubleshooting methodology steps is described in this example?

Answer: B

Explanation:
The correct answer is C. Documenting findings, actions, outcomes, and lessons learned throughout the process. According to the CompTIA Network+ N10-009 troubleshooting methodology, the final step in the structured troubleshooting process involves documenting everything that occurred during the incident. This includes the root cause, actions taken, changes implemented (such as approved change requests), outcomes of those actions, and any lessons learned.
In the scenario, the key phrase is that leadership is being updated on the results after a breach and an approved change request. This clearly aligns with post-resolution communication and documentation, where technical teams report findings and outcomes to stakeholders. This step is critical for organizational knowledge, audit requirements, compliance, and improving future incident response.
The other options represent earlier steps in the troubleshooting process. Establishing a theory of probable cause occurs early when diagnosing the issue. Establishing a plan of action comes be fore implementing changes. Implementing the solution happens during remediation. However, none of these involve summarizing and communicating results after the fact.
Therefore, updating leadership on results corresponds directly to the documentation and lessons-learned phase of the troubleshooting methodology.


NEW QUESTION # 253
A network technician replaced an access layer switch and needs to reconfigure it to allow the connected devices to connect to the correct networks.
INSTRUCTIONS
Click on the appropriate port(s) on Switch 1 and Switch 3 to verify or reconfigure the correct settings:
Ensure each device accesses only its
correctly associated network.
Disable all unused switchports.
. Require fault-tolerant connections
between the switches.
. Only make necessary changes to
complete the above requirements.






Answer:

Explanation:
See the solution below in Explanation.
Explanation:
To provide a complete solution for configuring the access layer switches, let's proceed with the following steps:
Identify the correct VLANs for each device and port.
Enable necessary ports and disable unused ports.
Configure fault-tolerant connections between the switches.
Port 1 Configuration (Uplink to Core Switch)
Status: Enabled
LACP: Enabled
Speed: 1000
Duplex: Full
VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN150, VLAN220 Port 2 Configuration (Uplink to Core Switch) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN150, VLAN220 Port 3 Configuration (Server Connection) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN90 (Servers) Port 4 Configuration (Server Connection) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN90 (Servers) Port 5 Configuration (Wired Users and WLAN) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN120, VLAN150 Port 6 Configuration (Wired Users and WLAN) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN120, VLAN150 Port 7 Configuration (Voice and Wired Users) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN220 Port 8 Configuration (Voice, Printers, and Wired Users) Status: Enabled LACP: Enabled Speed: 1000 Duplex: Full VLAN Configuration: Tagged for VLAN60, VLAN90, VLAN120, VLAN220 Port 1 Configuration (Unused) Status: Disabled LACP: Disabled Port 2 Configuration (Unused) Status: Disabled LACP: Disabled Port 3 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 4 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 5 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 6 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Port 7 Configuration (Connection to Device) Status: Enabled LACP: Disabled Speed: 1000 Duplex: Full VLAN Configuration: Untagged for VLAN1 (Default) Ports 1 and 2 on Switch 1 are configured as trunk ports with VLAN tagging enabled for all necessary VLANs.
Ports 3 and 4 on Switch 1 are configured for server connections with VLAN 90 untagged.
Ports 5, 6, 7, and 8 on Switch 1 are configured for devices needing access to multiple VLANs.
Unused ports on Switch 3 are disabled.
Ports 3, 4, 5, 6, and 7 on Switch 3 are enabled for default VLAN1.
Core Switch Ports should be configured as needed for uplinks to Switch 1.
Ensure LACP is enabled for redundancy on trunk ports between switches.
By following these configurations, each device will access only its correctly associated network, unused switch ports will be disabled, and fault-tolerant connections will be established between the switches.


NEW QUESTION # 254
......

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