CompTIA Network+ N10-009 Exam Questions in PDF

Free CompTIA N10-009 Dumps Questions (page: 14)

Which of the following steps of the troubleshooting methodology should a technician take to confirm a theory?

  1. Duplicate the problem.
  2. Identify the symptoms.
  3. Gather information.
  4. Determine any changes.

Answer(s): A



A network administrator is deploying a new switch and wants to make sure that the default priority value was set for a spanning tree.
Which of the following values would the network administrator expect to see?

  1. 4096
  2. 8192
  3. 32768
  4. 36684

Answer(s): C



A network administrator is configuring a wireless network with an ESSID. Which of the following is a user benefit of ESSID compared to SSID?

  1. Stronger wireless connection
  2. Roaming between access points
  3. Advanced security
  4. Increased throughput

Answer(s): B



A network administrator needs to connect two routers in a point-to-point configuration and conserve IP space.
Which of the following subnets should the administrator use?

  1. /24
  2. /26
  3. /28
  4. /30

Answer(s): D



An attacker follows an employee through a badge-secured door before the door closes.
Which of the following types of attacks is occurring?

  1. Shoulder surfing
  2. Tailgating
  3. Phishing
  4. On-path

Answer(s): B



A research facility is expecting to see an exponential increase in global network traffic in the near future. The offices are equipped with 2.5Gbps fiber connections from the ISP, but the facility is currently only utilizing 1Gbps connections.
Which of the following would need to be configured in order to use the ISP's connection speed?

  1. 802.1Q tagging
  2. Network address translation
  3. Port duplex
  4. Link aggregation

Answer(s): D



A VoIP phone is plugged in to a port but cannot receive calls.
Which of the following needs to be done on the port to address the issue?

  1. Trunk all VLANs on the port.
  2. Configure the native VLAN.
  3. Tag the traffic to voice VLAN.
  4. Disable VLANs.

Answer(s): C



Which of the following can support a jumbo frame?

  1. Access point
  2. Bridge
  3. Hub
  4. Switch

Answer(s): D



Share your comments for CompTIA N10-009 exam with other users:

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.

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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