Free CompTIA N10-009 Practice Questions & Answers 2026 Part3 | CompTIA Network+

Users cannot connect to an internal website with an IP address 10.249.3.76. A network administrator runs a command and receives the following output:Which of the following command-line tools is the network administrator using?

A systems administrator is configuring a new device to be added to the network. The administrator is planning to perform device hardening prior to connecting the device.Which of the following should the administrator do first?

Which of the following network traffic types is sent to all nodes on the network?

Which of the following cloud deployment models is most commonly associated with multitenancy and is generally offered by a service provider?

Which of the following fiber connector types is the most likely to be used on a network interfacecard?

A network engineer is implementing a new connection between core switches. The engineer deploys the following configurations to the switches:Which of the following is the state of the core-sw01 port-channel interfaces?

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

Which of the following activities would have groups from different departments evaluate the disaster recovery process?

A wireless network consultant is deploying a large number of WAPs and wants to centrally control them from one wireless LAN controller.Which of the following network types should the consultant employ?

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?

A network administrator logs on to a router and sees an interface with an IP address of 10.61.52.34 255.255.255.252.Which of the following best describes how this interface IP address is being used?

A network technician is troubleshooting a web application's poor performance. The office has two internet links that share the traffic load.Which of the following tools should the technician use to determine which link is being used for the web application?

A network administrator is in the process of installing 35 PoE security cameras. After the administrator installed and tested the new cables, the administrator installed the cameras. However, a small number of the cameras do not work.Which of the following is the most likely reason?

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 IP transmission types encrypts all of the transmitted data?

Which of the following ports should a network administrator enable for encrypted log-in to a network switch?

Which of the following routing protocols uses an autonomous system number?

A network administrator is troubleshooting an application issue after a firewall change. The administrator has confirmed that the port and protocol are accessible to the user, but the application is still having issues.Which of the following tools allows the administrator to look at traffic on the application layer of the OSI model?

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

A network administrator is planning to host a company application in the cloud, making the application available for all internal and third-party users.Which of the following concepts describes this arrangement?

A company is hosting a secure server that requires all connections to the server to be encrypted. A junior administrator needs to harden the web server. The following ports on the web server are open:Which of the following ports should be disabled?

A network technician is troubleshooting network latency and has determined the issue to be occuring two network switches( Switch10 and Switch11). Symptoms reported included poor video performance and slow file copying. Given the following informtion:Which of the following should the technician most likely do to resolve the issue?

A network administrator needs to set up a file server to allow user access. The organization uses DHCP to assign IP addresses. Which of the following is the best solution for the administrator to set up?

Which of the following activities would have groups from different departments evaluate the disaster recovery process?

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

A virtual machine has the following configuration:IPv4 address: 169.254.10.10Subnet mask: 255.255.0.0The virtual machine can reach collocated systems but cannot reach external addresses on the internet.Which of the following is most likely the root cause?

A network administrator needs to set up a file server to allow user access. The organization uses DHCP to assign IP addresses. Which of the following is the best solution for the administrator to set up?

Which of the following appliances provides users with an extended footprint that allows connections from multiple devices within a designated WLAN?

A network engineer wants to improve network availability. Which of the following should the engineer install in the main closet?

A network administrator notices interference with industrial equipment in the 2.4GHz range.Which of the following technologies would most likely mitigate this issue? (Choose two.)

A company is opening a new site that needs to be divided into subnets that accommodate 75 hosts each. Which of the following is the most efficient subnet? To support 75 hosts per subnet, you must choose a subnet size that provides at least 75 usable IP addresses. In IPv4, usable hosts per subnet equals 2^(host bits) 2 (subtracting network and broadcast). A /25 leaves 7 host bits (32--25 = 7), giving 2^7 2 = 128 2 = 126 usable hosts, which meets the requirement and is the smallest (most efficient) option listed that does so. A /26 leaves 6 host bits, giving 62 usable hosts, which is insufficient. A /27 gives 30 usable, and a /28 gives 14 usable, both far below 75. Network+ subnetting objectives emphasize selecting the smallest subnet that satisfies the host requirement to conserve address space while meeting growth and design constraints. Therefore, 192.168.13.0/25 is the most efficient option that accommodates at least 75 hosts per subnet.

Which of the following routing protocols uses an autonomous system number?

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

Which of the following can support a jumbo frame?

Which of the following offers the ability to manage access at the cloud VM instance?

After installing a series of Cat 8 keystones, a data center architect notices higher than normal interference during tests.Which of the following steps should the architect take to troubleshoot the issue?

A network administrator is connecting two Layer 2 switches in a network. These switches must transfer data in multiple networks. Which of the following would fulfill this requirement?

Which of the following is a characteristic of the application layer?

Before using a guest network, an administrator requires users to accept the terms of use.Which of the following is the best way to accomplish this goal?

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?

A network administrator is configuring access points for installation in a dense environment where coverage is often overlapping.Which of the following channel widths should the administrator choose to help minimize interference in the 2.4GHz spectrum?

Which of the following is a cost-effective advantage of a split-tunnel VPN?

Which of the following IP transmission types encrypts all of the transmitted data?

After changes were made to a firewall, users are no longer able to access a web server. A network administrator wants to ensure that ports 80 and 443 on the web server are still accessible from the user IP space. Which of the following commands is best suited to perfom this testing?

Which of the following requires network devices to be managed using a different set of IP addresses?

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

A network administrator is troubleshooting issues with a DHCP server at a university. More studentshave recently arrived on campus, and the users are unable to obtain an IP address. Which of thefollowing should the administrator do to address the issue?

A technician is troubleshooting a computer issue for a user who works in a new annex of an office building. The user is reporting slow speeds and intermittent connectivity. The computer is connected via a Cat 6 cable to a distribution switch that is 492ft (150m) away. Which of the following should the technician implement to correct the issue?

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?