N10-008 Exam Dumps - CompTIA Network+ Questions and Answers

The maximum duration that a given service can be down before it impacts operations is often referred to as the Recovery Time Objective (RTO). RTO is a key consideration in any backup and disaster recovery plan, as it determines how quickly the organization needs to be able to recover from a disruption or failure. It is typically expressed in terms of time, and it helps to inform the design and implementation of the backup solution. For example, if an organization has a critical service that must be available 24/7, it may have a very low RTO, requiring that the service be restored within a matter of minutes or even seconds. On the other hand, if the service can be down for a longer period of time without significantly impacting operations, the organization may have a higher RTO. When selecting a backup solution, it is important to consider the organization's RTO requirements and ensure that the solution is capable of meeting those needs. A solution that does not meet the organization's RTO requirements may not be sufficient to ensure the availability of critical services in the event of a disruption or failure.

Assigning a new IP address range to the local company is the best option to quickly connect the two companies without causing any IP address conflicts or overlaps. This option requires reconfiguring the local company’s network devices and updating the routing tables on both sides, but it avoids the need for any NAT or static routing solutions that may introduce additional complexity, cost, or performance issues12

References1: Connecting Networks with Overlapping IP Ranges 2: What Is Network Address Translation (NAT)?

Out of band management is a process for accessing and managing network devices and infrastructure at remote locations through a separate management plane from the production network. Out of band management requires network devices to be managed using a different set of IP addresses than the ones used for in-band management or data traffic. This provides a secure and dedicated alternate access method to administer connected devices and IT assets without using the corporate LAN.

• A POE injector is a device that provides power and data over a single Ethernet cable to a POE device, such as a VoIP phone, a wireless access point, or a security camera12.
• A POE injector is needed when the switch or router that connects to the POE device does not support POE or does not have enough POE ports available12.
• A POE injector can be installed between the switch or router and the POE device, using two Ethernet cables: one from the switch or router to the injector, and another from the injector to the POE device12.
• A POE injector can supply up to 30W of power per port, depending on the POE standard it supports (802.3af or 802.3at)12.
• B. Enable MDIX is not a correct answer because MDIX is a feature that allows a switch or router to automatically detect the type of cable (straight-through or crossover) and adjust the pin assignments accordingly34.
• MDIX is not related to providing power to a POE device, and it is usually enabled by default on modern switches and routers34.
• C. Use a crossover cable is not a correct answer because a crossover cable is a type of Ethernet cable that swaps the transmit and receive pairs of wires, allowing two devices of the same type (such as two switches or two computers) to communicate directly56.
• A crossover cable is not needed to connect a VoIP phone to a switch or router, as they are different types of devices that use different pin assignments56.
• A crossover cable also does not provide power to a POE device, and it may not work with gigabit Ethernet or auto-MDIX devices56.
• D. Reconfigure the port is not a correct answer because reconfiguring the port on the switch or router that connects to the VoIP phone does not address the issue of providing power to the phone78.
• Reconfiguring the port may involve changing the speed, duplex, VLAN, or security settings, but none of these affect the power delivery to the POE device78.
• Reconfiguring the port may also cause network connectivity or performance issues if the settings are not compatible with the VoIP phone or the network78.

References:

• What Is a PoE Injector and How to Use It? | FS Community
• Power Injector for PoE Networks | Eaton
• CCNA / CCENT / Network+ Tutorial: Crossover Cables And Auto MDI-X
• Straight-Through and Crossover Cables - N10-008 CompTIA Network+ : 2.3
• Straight-Through, Crossover, and Rollover Cables - CompTIA Network+ N10-006 - 1.5
• CompTIA Network+ Cheat Sheet (Updated for Latest Exam) - StationX
• CompTIA® Network+ : Common TCP And UDP Default Ports - Tutorialsweb.Com
• A Guide to Network Troubleshooting - CompTIA

A split-tunnel VPN is a configuration where only specific traffic is routed through a VPN, while the remaining data is sent directly over the internet. This can reduce the bandwidth consumption and cost of the company’s internet connection, as cloud-based traffic does not need to pass through the VPN tunnel. A web filter, monitoring, and security are not advantages of a split-tunnel VPN, as they may require all traffic to go through the VPN.

https://www.auvik.com/franklyit/blog/vpn-split-tunneling/

A break in the cable means that there is no electrical continuity between the two ends of the cable, which prevents the signal from reaching the switch. A tone generator is a device that sends an audible signal through the cable, and if no tone is heard at the far end, it indicates a break in the cable.

• A pinout is the arrangement of wires or pins in a cable or connector that determines how the signals are transmitted and received. A pinout can be either straight-through, which means that the wires or pins are connected in the same order on both ends of the cable or connector, or crossover, which means that the wires or pins are swapped on one end of the cable or connector.
• An incorrect pinout is a likely cause of the low data rate and port errors, because it can prevent the proper communication between the workstation and the switch. If the pinout is not compatible with the devices or the standards, the signals may be distorted, lost, or misinterpreted, resulting in errors and reduced performance. For example, if the workstation and the switch use different Ethernet standards, such as 10BASE-T and 1000BASE-T, they may require different pinouts to operate correctly. If the cable or connector has a mismatched pinout, the workstation and the switch may not be able to negotiate the optimal speed and duplex settings, and may fall back to a lower data rate, such as 100 full duplex, or experience many RX and TX errors.
• Therefore, option D is the most likely answer, as the incorrect pinout needs to be corrected to provide the optimal data rate and port performance. The technician needs to check the cable and connector types, standards, and pinouts, and replace them with the appropriate ones that match the workstation and the switch specifications.
• Option A is not a likely answer, as the bad switch ports would affect the connectivity and performance of any device that is connected to them, not just the workstation. If the technician moves the computer to another switchport and experiences the same issues, it indicates that the problem is not with the switch ports, but with the workstation, the cable, or the connector.
• Option B is also not a likely answer, as the duplex issues would affect the mode of data transmission between the workstation and the switch, not the data rate or the port errors. The duplex issues can be either half-duplex, which means that data can be transmitted in one direction at a time, or full-duplex, which means that data can be transmitted in both directions simultaneously. The duplex issues can cause collisions or interference if the workstation and the switch have different duplex settings, but they would not cause the data rate to drop to 100 full duplex, or cause many RX and TX errors.
• Option C is also not a likely answer, as the cable length would affect the signal strength and quality of the data transmission, not the data rate or the port errors. The cable length can cause attenuation, which is the loss of signal power over distance, or crosstalk, which is the interference from adjacent wires or cables. The cable length can cause the data transmission to be degraded or corrupted, but it would not cause the data rate to drop to 100 full duplex, or cause many RX and TX errors.

References:

• CompTIA Network+ N10-008 Study Guide, Chapter 2: Network Devices and Technologies, Section 2.1: Network Cabling and Connectors, Page 661
• Professor Messer’s CompTIA N10-008 Network+ Course Notes, Section 2.1: Network Cabling and Connectors, Page 92
• What is a Pinout? | Definition and Examples3
• Ethernet Cable Pinouts - Cisco
• Troubleshooting Ethernet Cable Problems - Cisco

SaaS is the cloud computing model that focuses on application delivery. SaaS stands for Software as a Service, which is a cloud computing model that provides software applications over the internet. SaaS allows customers to access and use software applications without installing or maintaining them on their own devices or servers. SaaS offers advantages such as scalability, accessibility, compatibility, and cost-effectiveness. Customers can use SaaS applications on demand and pay only for what they use. References: [CompTIA Network+ Certification Exam Objectives], What Is Software as a Service (SaaS)? | IBM

"Bad cables, incorrect pinouts, or bent pins: Faulty cables (with electrical characteristics preventing successful transmission) or faulty connectors (which do not properly make connections) can prevent successful data transmission at Layer 1. A bad cable could simply be an incorrect category of cable being used for a specific purpose. For example, using a Cat 5 cable (instead of a Cat 6 or higher cable) to connect two 1000BASE-TX devices would result in data corruption. Bent pins in a connector or incorrect pinouts could also cause data to become corrupted."

Confidentiality is the property of preventing unauthorized access or disclosure of data. Encryption is a method of transforming data into an unreadable format that can only be decrypted by authorized parties who have the correct key. Encryption can increase the confidentiality of data communication across the network by making it harder for attackers to intercept or eavesdrop on the data. References: Network+ Study Guide Objective 4.1: Summarize the purposes of physical security devices. Subobjective: Encryption.

The most common sensors installed in a data center to monitor environmental issues include:

• Temperature Sensors: These sensors monitor the ambient temperature within the data center. Maintaining an optimal temperature is crucial for the proper functioning of servers and other equipment.
• Humidity Sensors: These sensors measure the humidity levels. High humidity can cause condensation, leading to equipment damage, while low humidity can cause static electricity buildup.

References:

• 1: CompTIA Network+ Certification Exam Objectives (N10-008)

 Documenting the lessons learned is the best method for passing along the exact steps other technicians should follow in case the issue arises again. Lessons learned are the knowledge and experience gained from completing a project or solving a problem. Documenting the lessons learned helps to capture the best practices, challenges, solutions, and recommendations for future reference and improvement. Documenting the lessons learned can also help to update the knowledge base, standard operating procedures, or policies related to the issue. References: [CompTIA Network+ Certification Exam Objectives], Lessons Learned: Definition & Examples for Project Managers

A cable tester is a tool that can verify the integrity and functionality of a network cable. It can measure the electrical characteristics of the cable, such as resistance, capacitance, and impedance, and detect any faults or defects, such as shorts, opens, or crosstalk. A cable tester can help the network administrator troubleshoot the problem by determining if the cable is faulty or not. A tone generator is a tool that can send an audible signal through a cable to help locate and identify it. A multimeter is a tool that can measure voltage, current, and resistance of electrical circuits. An optical time-domain reflectometer (OTDR) is a tool that can test the quality and length of fiber optic cables.

References: CompTIA Network+ Certification Exam Objectives Version 7.0 (N10-007), Objective 2.3: Given a scenario, use the appropriate tool to support wired or wireless networks.

A false camera is a dummy device that looks like a real camera but does not actually record or transmit any video. It is used to deter potential intruders or attackers from entering or damaging a building by creating the illusion of surveillance. Therefore, it is a preventive measure that aims to reduce the likelihood or impact of a security breach. It is not a detection, recovery, or identification tool, as it does not alert, restore, or recognize any security incidents.

References:

• [CompTIA Network+ N10-008 Certification Study Guide], Chapter 6: Network Security, Section 6.1: Physical Security, pp. 317-318
• [Professor Messer’s CompTIA N10-008 Network+ Course Notes], Section 6.1: Physical Security, p. 79
• [Professor Messer’s CompTIA N10-008 Network+ Training Course], Video 6.1: Physical Security, 5:25 minutes

• The question asks about the best wireless standard for a WLAN project that involves MU-MIMO and dual-band frequencies.
• The answer is not A, because 802.11ac is a wireless standard that supports MU-MIMO, but only operates on the 5GHz frequency band, which does not meet the project requirement of compatibility with 2.4GHz clients.
• The answer is not C, because 802.11g is a wireless standard that operates on the 2.4GHz frequency band, but does not support MU-MIMO, which is a key feature for improving connection performance in high-density areas.
• The answer is not D, because 802.11n is a wireless standard that operates on both 2.4GHz and 5GHz frequency bands, but only supports SU-MIMO (Single-User Multiple-Input Multiple-Output), which is less efficient and scalable than MU-MIMO for multiple concurrent connections.
• The answer is B, because 802.11ax is a wireless standard that supports MU-MIMO and operates on both 2.4GHz and 5GHz frequency bands, which meets the project requirements of compatibility and performance. 802.11ax is also known as Wi-Fi 6, and it offers higher data rates, lower latency, and better energy efficiency than previous wireless standards.

References:

• : CompTIA Network+ N10-008 Study Guide, Chapter 3: Network Components, Section 3.1: Network Devices, p. 121
• : CompTIA Network+ N10-008 Study Guide, Chapter 3: Network Components, Section 3.2: Wireless Technologies, p. 134
• : CompTIA Network+ N10-008 Study Guide, Chapter 3: Network Components, Section 3.2: Wireless Technologies, p. 136
• : CompTIA Network+ N10-008 Study Guide, Chapter 3: Network Components, Section 3.2: Wireless Technologies, p. 139