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CompTIA N10-008 certification exam is designed to test the candidate's ability to install, configure, and maintain basic network infrastructure, including switches, routers, and wireless access points. N10-008 exam also covers network security concepts and best practices, including network segmentation, access control, and threat mitigation. Additionally, the exam tests the candidate's ability to troubleshoot network issues and identify network performance problems.
CompTIA N10-008 certification exam is an excellent opportunity for individuals who want to enhance their knowledge and skills in the field of networking. It is a globally recognized credential that is highly valued by employers. Passing N10-008 exam demonstrates your proficiency in designing, configuring, managing, and troubleshooting network solutions. With proper preparation and study, you can pass N10-008 exam and take the first step towards a rewarding career in IT.
NEW QUESTION # 545
A network administrator is reviewing interface errors on a switch. Which of the following indicates that a switchport is receiving packets in excess of the configured MTU?
- A. Giants
- B. Runts
- C. Flooding
- D. CRC errors
Answer: A
Explanation:
Explanation
Giants are packets that exceed the configured MTU (Maximum Transmission Unit) of a switchport or interface, which causes them to be dropped or fragmented by the switch or router. The MTU is the maximum size of a packet that can be transmitted without fragmentation on a given medium or protocol. Giants can indicate misconfiguration or mismatch of MTU values between devices or interfaces on a network, which can cause performance issues or errors. CRC errors are errors that occur when the cyclic redundancy check (CRC) value of a packet does not match the calculated CRC value at the destination, which indicates corruption or alteration of data during transmission due to noise, interference, faulty cabling, etc., but not necessarily exceeding MTU values. Runts are packets that are smaller than the minimum size allowed by the medium or protocol, which causes them to be dropped or ignored by the switch or router. Flooding is a technique where a switch sends packets to all ports except the source port when it does not have an entry for the destination MAC address in its MAC address table, which can cause congestion or broadcast storms on a network.
NEW QUESTION # 546
A user is connecting a smartwatch to a smartphone for internet access. Which of the following network types is the user employing?
- A. MAN
- B. LAN
- C. PAN
- D. WLAN
Answer: C
NEW QUESTION # 547
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?
- A. A logical interface used when the number of physical ports is insufficient
- B. A physical interface used for trunking logical ports
- C. A physical interface used for management access
- D. A logical interface used for the routing of VLANs
Answer: D
Explanation:
An SVI, or switched virtual interface, is a logical interface that is created on a Layer 3-capable device, such as a multilayer switch or a router. An SVI is associated with a VLAN and can be used to route traffic between different VLANs on the same device or across multiple devices. An SVI can also provide management access, security features, and quality of service (QoS) for the VLAN. An SVI is different from a physical interface, which is a port that connects to a physical device or network. A physical interface can be used for trunking, which is a method of carrying multiple VLANs over a single link, or for connecting to a single VLAN. An SVI is also different from a subinterface, which is a logical division of a physical interface that can be assigned to different VLANs.
References:
* VLANs and Trunking - N10-008 CompTIA Network+ : 2.11
* Switched Virtual Interfaces - N10-008 CompTIA Network+ : 2.22
NEW QUESTION # 548
A network administrator views a network pcap and sees a packet containing the following:
Which of the following are the BEST ways for the administrator to secure this type of traffic? (Select TWO).
- A. Migrate the network to IPv6.
- B. Implement 802.1 X authentication
- C. Incorporate SSL encryption
- D. Set a private community siring
- E. Use SNMPv3.
- F. Utilize IPSec tunneling.
Answer: D,E
Explanation:
The packet shown in the image is an SNMP (Simple Network Management Protocol) packet, which is used to monitor and manage network devices. SNMP uses community strings to authenticate requests and responses between SNMP agents and managers. However, community strings are sent in clear text and can be easily intercepted by attackers. Therefore, one way to secure SNMP traffic is to set a private community string that is not the default or well-known value. Another way to secure SNMP traffic is to use SNMPv3, which is the latest version of the protocol that supports encryption and authentication of SNMP messages.
References: CompTIA Network+ Certification Exam Objectives Version 7.0 (N10-007), Objective 2.5: Given a scenario, use remote access methods.
NEW QUESTION # 549
A help desk technician is concerned that a client's network cable issues may be causing intermittent connectivity.
Which of the following would help the technician determine if this is the issue?
- A. Run iperf on the technician's desktop
- B. Ping the client's computer from the router
- C. Run a port scanner on the client's IP address
- D. Run the show interface command on the switch
- E. Run the traceroute command on the server.
Answer: D
Explanation:
Cisco routers and switches have a show interfaces IOS command that provides interface statistics/status information, including link state (up/down), speed/duplex, send/receive traffic, cyclic redundancy checks (CRCs), and protocol packet and byte counts.
NEW QUESTION # 550
An IT administrator received an assignment with the following objectives
* Conduct a total scan within the company's network tor all connected hosts
* Detect all the types of operating systems running on all devices
* Discover all services offered by hosts on the network
* Find open ports and detect security risks.
Which of the following command-line tools can be used to achieve these objectives?
- A. netatat
- B. arp
- C. nmap
- D. tcpdump
Answer: C
Explanation:
Nmap (Network Mapper) is a free and open source command line tool that can be used to scan a network for all connected hosts, detect the types of operating systems running on all devices, discover all services offered by hosts on the network, find open ports, and detect security risks. Nmap is commonly used by system administrators and security professionals to audit a network's security and identify possible vulnerabilities. Nmap can be used to discover active hosts, scan ports, fingerprint operating systems, detect running services, and more. Reference: CompTIA Network+ Study Manual, 8th Edition, page 592.
NEW QUESTION # 551
A network technician is troubleshooting an issue that involves connecting to a server via SSH. The server has one network interface that does not support subinterfaces. The technician runs a command on the server and receives the following output:
On the host, the technician runs another command and receives the following:
Which of the following best explains the issue?
- A. The host does not have a route to the server.
- B. The server is not running the SSH daemon.
- C. A firewall is blocking access to the server.
- D. The server is plugged into a trunk port.
Answer: A
NEW QUESTION # 552
A network technician is troubleshooting an issue that involves connecting to a server via SSH. The server has one network interface that does not support subinterfaces. The technician runs a command on the server and receives the following output:
On the host, the technician runs another command and receives the following:
Which of the following best explains the issue?
- A. The host does not have a route to the server.
- B. The server is not running the SSH daemon.
- C. A firewall is blocking access to the server.
- D. The server is plugged into a trunk port.
Answer: A
NEW QUESTION # 553
An attacker is attempting to find the password to a network by inputting common words and phrases in plaintext to the password prompt. Which of the following attack types BEST describes this action?
- A. Rainbow table attack
- B. Brute-force attack
- C. Pass-the-hash attack
- D. Dictionary attack
Answer: D
Explanation:
The attacker attempting to find the password to a network by inputting common words and phrases in plaintext to the password prompt is using a dictionary attack. References: CompTIA Network+ Certification Study Guide, Chapter 6: Network Attacks and Mitigation.
NEW QUESTION # 554
A technician is assisting a user who cannot connect to a network resource. The technician first checks for a link light. According to troubleshooting methodology, this is an example of:
- A. establishing a plan of action.
- B. documenting a finding.
- C. using a bottom-to-top approach.
- D. questioning the obvious.
Answer: C
Explanation:
Using a bottom-to-top approach means starting from the physical layer and moving up the OSI model to troubleshoot a network problem. Checking for a link light is a physical layer check that verifies the connectivity of the network cable and device. References:
https://www.professormesser.com/network-plus/n10-007/troubleshooting-methodologies-2/
NEW QUESTION # 555
Which of the following is the MOST cost-effective alternative that provides proper cabling and supports gigabit Ethernet devices?
- A. Twisted cable with a minimum Cat 5e certification
- B. Multimode fiber with an SC connector
- C. Cable termination using TIA/EIA-568-B
- D. Twinaxial cabling using an F-type connector
Answer: A
Explanation:
Twisted cable with a minimum Cat 5e certification is the MOST cost-effective alternative that provides proper cabling and supports gigabit Ethernet devices. B, C, and D are not correct because they are not cost-effective options and do not provide proper cabling and support for gigabit Ethernet devices.
NEW QUESTION # 556
Which of the following is used to provide networking capability for VMs at Layer 2 of the OSI model?
- A. VRRP
- B. vSwitch
- C. VPN
- D. VIP
Answer: B
NEW QUESTION # 557
Several WIFI users are reporting the inability to connect to the network. WLAN users on the guest network are able to access all network resources without any performance issues. The following table summarizes the findings after a site survey of the area in question:
Which of the following should a wireless technician do NEXT to troubleshoot this issue?
- A. Update the SSIDs on all the APs
- B. Replace the omni antennas with directional antennas
- C. Decrease power in AP 3 and AP 4
- D. Reconfigure the channels to reduce overlap
Answer: D
Explanation:
Explanation
Based on the site survey table, we can see that AP 2, AP 3, and AP 4 are all broadcasting on the same channel, which can cause interference and affect performance. Therefore, the next step a wireless technician should take to troubleshoot this issue is to reconfigure the channels to reduce overlap. This will help to improve network performance and eliminate any interference.
References:
Network+ N10-007 Certification Exam Objectives, Objective 2.8: Given a scenario, troubleshoot common wireless problems and perform site surveys.
NEW QUESTION # 558
A company is considering shifting its business to the cloud. The management team is concerned about the availability of the third-party cloud service. Which of the following should the management team consult to determine the promised availability of the cloud provider?
- A. Business continuity plan
- B. Memorandum of understanding
- C. Service-level agreement
- D. Disaster recovery plan
Answer: C
NEW QUESTION # 559
A network administrator wants to know which systems on the network are at risk of a known vulnerability.
Which of the following should the administrator reference?
- A. SLA
- B. NDA
- C. Site survey report
- D. CVE
- E. Patch management policy
Answer: D
Explanation:
Explanation
A Common Vulnerabilities and Exposures (CVE) is a publicly available database of known security vulnerabilities and exposures that affect various software and hardware products. A CVE entry provides a standardized identifier, a brief description, and references to related sources of information for each vulnerability or exposure. A network administrator can reference the CVE database to check if any of the systems on the network are affected by a known vulnerability, and if so, what are the potential impacts and mitigations.
A Service Level Agreement (SLA) is a contract between a service provider and a customer that defines the expected level and quality of service, such as availability, performance, and security. An SLA does not provide information on specific vulnerabilities or exposures affecting the systems or services.
A Patch Management Policy is a set of rules and procedures that govern how patches are applied to systems and software to fix bugs, improve functionality, or address security issues. A patch management policy can help prevent or reduce the risk of vulnerabilities or exposures, but it does not provide information on specific vulnerabilities or exposures affecting the systems or software.
A Non-Disclosure Agreement (NDA) is a legal contract between two or more parties that prohibits the disclosure of confidential or proprietary information to unauthorized parties. An NDA does not provide information on specific vulnerabilities or exposures affecting the systems or information.
A Site Survey Report is a document that summarizes the results of a physical inspection and assessment of a network site, such as the layout, infrastructure, equipment, and environmental conditions. A site survey report can help identify and resolve potential network issues, such as interference, signal strength, or coverage, but it does not provide information on specific vulnerabilities or exposures affecting the network devices or software.
References
What is CVE?
What is a Service Level Agreement (SLA)?
Guide to Enterprise Patch Management Planning
NDA, MSA, SOW and SLA. Confidentiality agreements when you outsource QA Site Survey Report
NEW QUESTION # 560
A company's network is set up so all Internet-bound traffic from all remote offices exits through a main datacenter. Which of the following network topologies would BEST describe this setup?
- A. Spine-and-leaf
- B. Mesh
- C. Bus
- D. Hub-and-spoke
Answer: D
Explanation:
A hub-and-spoke can be WAN configured between a central office and branch offices.
NEW QUESTION # 561
A technician is troubleshooting reports that a networked printer is unavailable. The printer's IP address is configured with a DHCP reservation, but the address cannot be pinged from the print server in the same subnet. Which of the following is MOST likely the cause of me connectivity failure?
- A. Incorrect gateway
- B. Incorrect VLAN
- C. DHCP scope exhaustion
- D. DNS failure
Answer: B
Explanation:
A VLAN is a virtual local area network that logically separates devices on the same physical network. VLANs can improve network performance, security, and management by reducing broadcast domains and isolating traffic.
A DHCP reservation is a feature that allows a network administrator to assign a specific IP address to a device based on its MAC address. This ensures that the device always receives the same IP address from the DHCP server, even if the lease expires or the device reboots.
A networked printer is a device that can be shared by multiple users on the same network. A networked printer typically has a built-in network interface card (NIC) that allows it to communicate with other devices using TCP/IP protocols.
A print server is a device or a software application that manages the printing requests from multiple clients. A print server can also provide additional features such as print queue management, printer driver installation, and printer status monitoring.
A subnet is a logical division of an IP network that allows devices to communicate more efficiently and securely. A subnet is defined by a network address and a subnet mask, which determine the range of valid IP addresses within the subnet. Devices on the same subnet can communicate directly with each other without the need for a router.
A ping is a network diagnostic tool that tests the connectivity and reachability between two devices by sending and receiving echo packets. A ping request can fail for various reasons, such as network congestion, firewall settings, routing issues, or device configuration errors.
Based on the question, the networked printer is unavailable because it cannot be pinged from the print server in the same subnet. This means that there is a problem with the layer 2 connectivity between the two devices, which is determined by the MAC addresses and the VLANs. The most likely cause of this problem is that the printer and the print server are on different VLANs, which prevents them from communicating with each other. The other options are less likely because they affect the layer 3 connectivity, which is determined by the IP addresses and the gateways. A DNS failure would not affect the ping request, since it uses IP addresses and not hostnames. A DHCP scope exhaustion would not affect the printer, since it has a DHCP reservation that guarantees its IP address. An incorrect gateway would not affect the communication within the same subnet, since it is only used for routing packets to other networks. Reference:
CompTIA Network+ N10-008 Study Guide, Chapter 2: Network Devices and Technologies, Section 2.2: Network Device Functions and Features, Subsection: Print Servers, pp. 76-77.
CompTIA Network+ N10-008 Study Guide, Chapter 3: Network Operations, Section 3.3: Network Configuration Management, Subsection: DHCP, pp. 144-146.
CompTIA Network+ N10-008 Study Guide, Chapter 4: Network Security, Section 4.2: Network Segmentation and Isolation, Subsection: VLANs, pp. 202-204.
Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 1.5: Network Troubleshooting Methodology, Subsection: Identify the Problem, pp. 16-17.
Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 2.2: Network Devices, Subsection: Print Servers, p. 28.
Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 2.6: Network Addressing, Subsection: DHCP, p. 38.
Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 2.7: Network Addressing, Subsection: Subnetting, p. 39.
Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 3.5: Network Segmentation, Subsection: VLANs, p. 58.
NEW QUESTION # 562
An administrator is setting up a multicast server on a network, but the firewall seems to be dropping the traffic. After logging in to the device, me administrator sees me following entries:
Which of the following firewall rules is MOST likely causing the issue?
- A. Rule 1
- B. Rule 3
- C. Rule 4
- D. Rule 2
Answer: A
NEW QUESTION # 563
A Wi-Fi network was recently deployed in a new, multilevel building. Several issues are now being reported related to latency and drops in coverage. Which of the following is the FIRST step to troubleshoot the issues?
- A. Perform a site survey.
- B. Test cable attenuation.
- C. Monitor channel utilization.
- D. Review the AP placement
Answer: A
Explanation:
Incorrect antenna placement could cause or exacerbate attenuation and interference problems.
Use a site survey and heat map to determine the optimum position for APs and (if available) the direction in which to point adjustable antennas.
NEW QUESTION # 564
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