CompTIA Network+ N10-009 Dumps in PDF

Free CompTIA N10-009 Real Questions (page: 16)

Which of the following network topologies contains a direct connection between every node in the network?

  1. Mesh
  2. Star
  3. Hub-and-spoke
  4. Point-to-point

Answer(s): A



A network architect needs to create a wireless field network to provide reliable service to public safety vehicles.
Which of the following types of networks is the best solution?

  1. Mesh
  2. Ad hoc
  3. Point-to-point
  4. Infrastructure

Answer(s): A



A manager is evaluating the environmental design of a data center.
Which of the following setups should the manager implement if the maximum thermal dissipation is the highest concern?

  1. A blue-green
  2. A hot-cold
  3. An east-west
  4. An active-passive

Answer(s): B



A network administrator configured a router interface as 10.0.0.95 255.255.255.240. The administrator discovers that the router is not routing packets to a web server with IP 10.0.0.81/28.
Which of the following is the best explanation?

  1. The web server is in a different subnet.
  2. The router interface is a broadcast address.
  3. The IP address space is a class A network.
  4. The subnet is in a private address space.

Answer(s): B



A network administrator is notified that a user cannot access resources on the network. The network administrator checks the physical connections to the workstation labeled User 3 and sees the Ethernet is properly connected. However, the network interface's indicator lights are not blinking on either the computer or the switch.
Which of the following is the most likely cause?

  1. The switch failed.
  2. The default gateway is wrong.
  3. The port is shut down.
  4. The VLAN assignment is incorrect.

Answer(s): C



Which of the following internal routing protocols is best characterized as having fast convergence and being loop-free?

  1. BGP
  2. STP
  3. OSPF
  4. RIP

Answer(s): C



An administrator is setting up an SNMP server for use in the enterprise network and needs to create device IDs within a MIB. Which of the following describes the function of a MIB?

  1. DHCP relay device
  2. Policy enforcement point
  3. Definition file for event translation
  4. Network access controller

Answer(s): C



A critical infrastructure switch is identified as end-of-support.
Which of the following is the best next step to ensure security?

  1. Apply the latest patches and bug fixes.
  2. Decommission and replace the switch.
  3. Ensure the current firmware has no issues.
  4. Isolate the switch from the network.

Answer(s): B



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.

AI Tutor 👋 I’m here to help!