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CompTIA N10-009 Exam Syllabus Topics:

SectionWeightObjectives
Networking Concepts23%- Cloud and virtualization
  • 1. Virtual networking concepts
  • 2. Cloud deployment models
- Network addressing and protocols
  • 1. Common ports and protocols
  • 2. IPv4 and IPv6 addressing
- Network media and topologies
  • 1. Network topologies and architectures
  • 2. Wireless and wired transmission media
- OSI model concepts
  • 1. Network devices and appliances
  • 2. OSI layers and functions
Network Troubleshooting24%- Performance troubleshooting
  • 1. Latency and packet loss
  • 2. Bandwidth bottlenecks
- Common network issues
  • 1. Routing and switching issues
  • 2. Wireless connectivity problems
- Troubleshooting methodology
  • 1. Problem identification
  • 2. Testing and verification
Network Implementation20%- Physical installations
  • 1. Cable management and installation
  • 2. Power and environmental considerations
- Routing technologies
  • 1. Static and dynamic routing
  • 2. NAT and routing protocols
- Wireless technologies
  • 1. Wireless standards and security
  • 2. Access point configuration
- Switching technologies
  • 1. VLAN configuration
  • 2. Spanning Tree Protocol
Network Security14%- Compliance and risk
  • 1. Risk and vulnerability concepts
  • 2. Compliance standards
- Authentication and authorization
  • 1. MFA and SSO
  • 2. RADIUS and TACACS+
- Security technologies
  • 1. PKI and encryption
  • 2. Firewalls and segmentation
Network Operations19%- Disaster recovery
  • 1. Business continuity concepts
  • 2. Recovery metrics and backup sites
- Monitoring and management
  • 1. SNMP and packet capture
  • 2. Performance monitoring
- Documentation and diagrams
  • 1. Logical and physical diagrams
  • 2. Asset inventory management
- Network services
  • 1. VPN and remote access
  • 2. DNS and DHCP

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CompTIA Network+ Certification Exam Sample Questions (Q351-Q356):

NEW QUESTION # 351
Which of the following would most likely be used as a replacement for a traditional VPN for remote users?

Answer: D

Explanation:
Secure Access Service Edge provides cloud-delivered secure access to applications and resources, combining networking and security functions to replace traditional VPN solutions for remote users.


NEW QUESTION # 352
A user submits an escalated ticket regarding failed logins on their laptop. The user states that the time displayed on the laptop is incorrect. An administrator thinks the issue is related to the NTP.
Which of the following should the administrator do next?

Answer: D

Explanation:
The administrator already has a theory (NTP time mismatch). The next troubleshooting step is to verify that hypothesis - i.e., test the theory - before planning or implementing a fix.


NEW QUESTION # 353
A network technician is troubleshooting a faulty NIC and tests the theory. Which of the following should the technician do next?

Answer: A

Explanation:
Once the theory has been tested and confirmed, the next step is to implement the solution based on the CompTIA troubleshooting model.
CompTIA Troubleshooting Model:
Identify the problem.
Establish a theory of probable cause.
Test the theory.
Establish a plan of action and implement the solution. # (Correct step) Verify full system functionality.
Document findings, actions, and outcomes.
Breakdown of Options:
A: Develop a theory - The theory has already been developed and tested.
B: Establish a plan of action - This happens before implementation, but since the issue is confirmed, it's time to act.
C: Implement the solution - Correct answer. The problem is confirmed, so the fix should be applied.
D: Document the findings - Documentation is the final step, not the next one.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 5.1: Explain network troubleshooting methodology.


NEW QUESTION # 354
Anetwork administratoris reviewing aproduction web serverand observes the following output from the netstatcommand:

Which of the followingactionsshould thenetwork administratortake toharden the securityof the web server?

Answer: C

Explanation:
Comprehensive and Detailed Explanation:
Thenetstatoutput shows thatmultiple ports are open, includingTelnet (23), FTP (20), and TFTP (69), which are potential security risks.Disabling unused portsminimizes the attack surface, reducing security vulnerabilities.
Breakdown of Options:
* A. Disable the unused ports-Correct answer.Unused portsshould be closedto prevent unauthorized access.
* B. Enforce access control lists- ACLs help control access but donot disable unnecessary services.
* C. Perform content filtering- Content filtering controlsweb traffic,not port security.
* D. Set up a screened subnet- ADMZ (screened subnet)improves security but doesnot address open ports.


NEW QUESTION # 355
SIMULATION
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 # 356
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