N10-009 Network Certification
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Official Name: CompTIA N10-009 Network Certification
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Start NowAbout the CompTIA N10-009 Network Certification Certification
The CompTIA N10-009 Network Certification certification is designed for professionals who design, configure, and troubleshoot wired and wireless networks while applying security and performance optimization techniques.. As technology evolves and industry demands grow more complex, this credential validates your ability to apply real-world skills and knowledge using CompTIA tools and frameworks. Earning the certification positions you as a trusted expert, capable of solving high-impact challenges and contributing to secure, scalable, and efficient systems.
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Test Your Knowledge of CompTIA N10-009 Network Certification
Question #1
A company’s network users report intermittent connectivity and slow speeds on a wired LAN.
Which tool should a technician use first to identify cable faults?
A) Cable tester
B) Network tap
C) Port scanner
D) Rack mount kit
Solution
Correct answers: Cable tester – Explanation:
A cable tester quickly checks for wiring faults or breaks causing intermittent issues. Network taps and port scanners serve other purposes; rack kits are unrelated.
Question #2
A technician must set up a secure wireless network for a small office.
Which protocol provides the strongest security?
A) WPA3
B) WEP
C) WPA
D) Open
Solution
Correct answers: WPA3 – Explanation:
WPA3 is the latest and most secure wireless encryption. WEP and WPA are outdated and vulnerable. Open networks provide no encryption.
Question #3
A user cannot access an internal web application but can browse external websites.
What is the most likely cause?
A) Incorrect DNS settings for internal resources
B) ISP outage
C) Wi-Fi interference
D) Outdated browser
Solution
Correct answers: Incorrect DNS settings for internal resources – Explanation:
If only internal apps fail, DNS for internal domains may be misconfigured. ISP issues would affect all sites; Wi-Fi or browser issues would impact all browsing.
Question #4
A network administrator needs to connect two buildings on a campus with high bandwidth and minimal interference.
Which medium is best?
A) Fiber optic cable
B) Cat 5e cable
C) 2.4GHz wireless bridge
D) Coaxial cable
Solution
Correct answers: Fiber optic cable – Explanation:
Fiber offers high bandwidth and immunity to interference over long distances. Cat 5e and coax are limited by distance; 2.4GHz wireless is prone to interference.
Question #5
A technician wants to monitor network traffic in real time and identify bandwidth hogs.
Which tool is most appropriate?
A) Network analyzer
B) Tone generator
C) Punchdown tool
D) Cable crimper
Solution
Correct answers: Network analyzer – Explanation:
A network analyzer (packet sniffer) shows traffic patterns and bandwidth usage. The other tools are for cable installation and maintenance.
Question #6
A company needs to provide remote access for employees working from home.
Which solution is most secure?
A) VPN with multifactor authentication
B) Port forwarding on the firewall
C) Telnet access
D) Unsecured remote desktop
Solution
Correct answers: VPN with multifactor authentication – Explanation:
VPNs encrypt data, and MFA prevents unauthorized access. Port forwarding, Telnet, and unsecured RDP are insecure and vulnerable.
Question #7
A user reports they cannot connect to the network after moving their workstation to a new cubicle.
Which is the most likely cause?
A) Incorrect VLAN assignment on the switch port
B) Firewall misconfiguration
C) ISP outage
D) Rack mount kit
Solution
Correct answers: Incorrect VLAN assignment on the switch port – Explanation:
Moving to a new port may place the device on the wrong VLAN, blocking access. Firewall and ISP issues would affect many users; hostname is less likely.
Question #8
A technician needs to reduce broadcast traffic on a large corporate network.
Which device should be implemented?
A) Router
B) Hub
C) Repeater
D) Patch panel
Solution
Correct answers: Cable tester – Explanation:
A cable tester quickly checks for wiring faults or breaks causing intermittent issues. Network taps and port scanners serve other purposes; rack kits are unrelated.
Question #9
A network team must provide uninterrupted power to switches in a server room during outages.
What should be installed?
A) Uninterruptible power supply
B) Rack-mounted fan
C) PoE injector
D) Network tap
Solution
Correct answers: Uninterruptible power supply – Explanation:
A UPS delivers backup power during outages. Fans, PoE injectors, and taps do not supply backup power.
Question #10
A company wants to ensure only authorized devices can join its Wi-Fi network.
Which feature should be enabled?
A) MAC address filtering
B) SSID broadcast
C) Port mirroring
D) 802.1p QoS
Solution
Correct answers: MAC address filtering – Explanation:
MAC filtering restricts network access to specified devices. SSID broadcast relates to visibility, not access; mirroring and QoS don’t control authentication.
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