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  3. N10-009

CompTIA Network+ N10-009 Exam Questions in PDF

Free CompTIA N10-009 Dumps Questions (page: 5)

N10-009 PDF — 713 Questions

A network administrator needs to create an SVI on a Layer 3-capable device to separate voice and data traffic.
Which of the following best explains this use case?

  1. A physical interface used for trunking logical ports
  2. A physical interface used for management access
  3. A logical interface used for the routing of VLANs
  4. A logical interface used when the number of physical ports is insufficient

Answer(s): C



A network administrator is performing a refresh of a wireless environment. As the APs are being placed, they overlap a little bit with each other.
Which of the following 2.4GHz channels should be selected to ensure that they do not conflict?

  1. 1, 3, 5
  2. 1, 6, 11
  3. 2, 6, 10
  4. 3, 6, 9

Answer(s): B



Which of the following network cables involves bouncing light off of protective cladding?

  1. Twinaxial
  2. Coaxial
  3. Single-mode
  4. Multimode

Answer(s): D



Which of the following would allow a network administrator to analyze attacks coming from the internet without affecting latency?

  1. IPS
  2. IDS
  3. Load balancer
  4. Firewall

Answer(s): B



A technician is troubleshooting wireless connectivity near a break room.
Whenever a user turns on the microwave, connectivity to the user's laptop is lost.
Which of the following frequency bands is the laptop most likely using?

  1. 2.4GHz
  2. 5GHz
  3. 6GHz
  4. 900MHz

Answer(s): A



A network administrator needs to implement routing capabilities in a hypervisor.
Which of the following should the administrator most likely implement?

  1. VPC
  2. Firewall
  3. NFV
  4. IaaS

Answer(s): C



A network technician needs to install patch cords from the UTP patch panel to the access switch for a newly occupied set of offices. The patch panel is not labeled for easy jack identification.
Which of the following tools provides the easiest way to identify the appropriate patch panel port?

  1. Toner
  2. Laptop
  3. Cable tester
  4. Visual fault locator

Answer(s): A



A network administrator received complaints of intermittent network connectivity issues. The administrator investigates and finds that the network design contains potential loop scenarios.
Which of the following should the administrator do?

  1. Enable spanning tree.
  2. Configure port security.
  3. Change switch port speed limits.
  4. Enforce 802.1Q tagging.

Answer(s): A



Viewing page 5 of 75

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O
onibokun10
4/13/2026 7:50:14 PM

Question 129:
Correct answer: CNAME

  • A CNAME record creates an alias for a domain, so newapplication.comptia.org will resolve to whatever IP address www.comptia.org resolves to. This ensures both names point to the same resource without duplicating the IP.
  • Why not the others:
- SOA defines authoritative information for a zone. - MX specifies mail exchange servers. - NS designates name servers for a zone.
  • Notes: The alias name (newapplication.comptia.org) should not have other records if you use a CNAME for it, and CNAMEs aren’t used for the zone apex (root) domain. This scenario uses a subdomain, so a CNAME is appropriate.

Swindon, United Kingdom
J
Joe
1/20/2026 8:25:24 AM

Passed this exam 2 days ago. These questions are in the exam. You are safe to use them.

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