Free CompTIA N10-009 Practice Questions & Answers 2026 Part1 | CompTIA Network+

Which of the following could provide a lightweight and private connection to a remote box?

While working in a coffee shop, an attacker watches a user log in to a corporate system and writes down the user's log-in credentials. Which of the following social engineering attacks is this an example of?

An office is experiencing intermittent connection issues. A network engineer identifies that the issue occurs whenever someone uses the fax machine that is connected to a switch.Which of the following should the engineer do first to resolve the issue?

As part of an attack, a threat actor purposefully overflows the content-addressable memory (CAM) table on a switch.Which of the following types of attacks is this scenario an example of?

Which of the following network devices converts wireless signals to electronic signals?

After running a Cat 8 cable using passthrough plugs, an electrician notices that connected cables are experiencing a lot of cross talk.Which of the following troubleshooting steps should the electrician take first?

A company is implementing a wireless solution in a high-density environment.Which of the following 802.11 standards is used when a company is concerned about device saturation and coverage?

Which of the following steps of the troubleshooting methodology would most likely include checking through each level of the OSI model after the problem has been identified?

While troubleshooting a VoIP handset connection, a technician's laptop is able to successfully connect to network resources using the same port. The technician needs to identify the port on the switch. Which of the following should the technician use to determine the switch and port?

A network administrator for a small office is adding a passive IDS to its network switch for the purpose of inspecting network traffic.Which of the following should the administrator use?

Which of the following is used to estimate the average life span of a device?

While troubleshooting a VoIP handset connection, a technician's laptop is able to successfully connect to network resources using the same port. The technician needs to identify the port on the switch. Which of the following should the technician use to determine the switch and port?

A customer is adding fiber connectivity between adjacent buildings. A technician terminates the multimode cable to the fiber patch panel. After the technician connects the fiber patch cable, the indicator light does not tum on.Which of the following should a technician try first to troubleshoot this issue?

A network consultant needs to decide between running an ethernet uplink or using the built-in 5GHz-to-point functionality on a WAP. Which of the following documents provides the best information to assist the consultant with this decision?

Which of the following is most closely associated with a dedicated link to a cloud environment and may not include encryption?

A company's marketing team created a new application and would like to create a DNS record for newapplication.comptia.org that always resolves to the same address as wwww.comptia.org.Which of the following records should the administrator use?

Which of the following is the first step a network administrator should take in the troubleshooting methodology?

Which of the following is the most likely reason an insurance brokerage would enforce VPN usage?

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?

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

A network administrator wants users to be able to authenticate to the corporate network using a port-based authentication framework when accessing both wired and wireless devices.Which of the following is the best security feature to accomplish this task?

Which of the following panels would be best to facilitate a central termination point for all network cables on the floor of a company building?

Which of the following attacks can cause users who are attempting to access a company website to be directed to an entirely different website?

Which of the following most likely requires the use of subinterfaces?

Which of the following connectors provides console access to a switch?

A network administrator wants to configure a backup route in case the primary route fails. A dynamic routing protocol is not installed on the router.Which of the following routing features should the administrator choose to accomplish this task?

A company's marketing team created a new application and would like to create a DNS record for newapplication.comptia.org that always resolves to the same address as wwww.comptia.org.Which of the following records should the administrator use?

A company's Chief Information Security Officer requires that servers and firewalls have accurate time stamps when creating log files so that security analysts can correlate events during incident investigations.

A network administrator deploys several new desk phones and workstation cubicles. Each cubicle has one assigned switchport. The administrator runs the following commands:nginxCopyEditswitchport mode accessswitchport voice vlan 69With which of the following VLANs will the workstation traffic be tagged?

A network engineer receives a vendor alert regarding a vulnerability in a router CPU.Which of the following should the engineer do to resolve the issue?

A technician is troubleshooting a user's connectivity issues and finds that the computer's IP address was changed to 169.254.0.1. Which of the following is the most likely reason?

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?

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?

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

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?

Which of the following steps in the troubleshooting methodology comes after using a top-to-top buttom examination of the OSI model to determine cause?

A network security administrator needs to monitor the contents of data sent between a secure network and the rest of the company.Which of the following monitoring methods will accomplish this task?

Which of the following routing technologies uses unequal cost load balancing and port 88?

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?

Which of the following protocols has a default administrative distance value of 90?

Which of the following network topologies involves sending all traffic through a single point?

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

A network technician is examining the configuration on an access port and notices more than one VLAN has been set. Which of the following best describes how the port is configured?

A company wants to implement a disaster recovery site for non-critical applications, which can tolerate a short period of downtime.Which of the following types of sites should the company implement to achieve this goal?

Which of the following ports is used for secure email?

Which of the following internal routing protocols is best characterized as having fast convergence and being loop-free? The correct answer is OSPF (Open Shortest Path First). OSPF is a link-state routing protocol known for its fast convergence and use of the Dijkstra algorithm to calculate the shortest loop-free path. It efficiently scales to large enterprise networks and avoids routing loops by maintaining a complete topology map. A . BGP is primarily an external routing protocol used between ISPs, not internal. B . STP is not a routing protocol; it prevents loops at Layer 2. D . RIP is an older distance-vector protocol with slower convergence and a maximum hop limit of 15. OSPF's design makes it the preferred internal gateway protocol (IGP) for medium-to-large organizations requiring speed and loop-free reliability. Reference (CompTIA Network+ N10-009): Domain: Networking Concepts --- IGPs, OSPF, routing protocols.

Which of the following antenna types would most likely be used in a network repeater that is housed in a central point in a home office?

Which of the following technologies are X.509 certificates most commonly associated with?

A company receives a cease-and-desist order from its ISP regarding prohibited torrent activity.Which of the following should be implemented to comply with the cease-and-desist order?