The power company notifies a network administrator that it will be turning off the power to the building over the weekend. Which of the following is the BEST solution to prevent the servers from going down?
Correct Answer: B
A power outage is a loss of electrical power to a network device or system, which can cause data loss, downtime, or damage12. A network administrator should implement power protection measures to prevent or mitigate the impact of power outages on the network12. One of the power protection measures is an uninterruptible power supply (UPS), which is a device that provides backup power to a network device or system in case of a power outage12. A UPS works by using a battery or other energy source to supply power to the connected device or system when the main power source fails or drops below a certain level12. A UPS can also provide power conditioning, which is the process of filtering and regulating the quality of the power supply to prevent fluctuations, spikes, or surges that can damage or disrupt the network device or system12. A UPS is the BEST solution to prevent the servers from going down in this scenario, because it can provide continuous and stable power to the servers during the power outage, allowing them to operate normally or shut down gracefully12. The other options are not the best solution to prevent the servers from going down, because they have different limitations or disadvantages: ARedundant power supplies are devices that provide an alternative power source to a network device or system in case of a power failure or malfunction of the primary power source12. They are not the best solution to prevent the servers from going down, because they still depend on the availability of the main power supply or another power source, such as a generator or a UPS12. They also do not provide power conditioning, which can protect the servers from power fluctuations12. C . A generator is a device that converts mechanical energy into electrical energy, which can be used to power a network device or system in case of a power outage12. It is not the best solution to prevent the servers from going down, because it can take some time to start up and switch over to the generator power, which can cause a brief interruption or data loss12. It also requires fuel, maintenance, and ventilation, which can add to the cost and complexity of the power protection system12. D . A power distribution unit (PDU) is a device that distributes power from a single source to multiple outlets, which can be used to connect and manage multiple network devices or systems12. It is not a solution to prevent the servers from going down, because it does not provide backup power or power conditioning, but only distributes the existing power supply12. It can also introduce a single point of failure, if the PDU itself fails or malfunctions12. Reference: 1: Power Protection - N10-008 CompTIA Network+ : 5.5 2: CompTIA Network+ N10-008 Full Course for Beginners - Power Protection (5.5)
Question 32
A technician completed troubleshooting and was able to fix an issue. Which of the following is the BEST method the technician can use to pass along the exact steps other technicians should follow in case the issue arises again?
Correct Answer: C
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. Reference: [CompTIA Network+ Certification Exam Objectives], Lessons Learned: Definition & Examples for Project Managers
Question 33
A voice engineer is troubleshooting a phone issue. When a call is placed, the caller hears echoes of the receiver's voice. Which of the following are the causes of this issue? (Choose two.)
Correct Answer: A,E
Question 34
A network administrator installed a new data and VoIP network. Users are now experiencing poor call quality when making calls. Which of the following should the administrator do to increase VoIP performance?
Correct Answer: A
"Benefits of Voice VLAN It ensures that your VoIP (Voice over Internet Phone) devices do not have to contend directly with all the broadcasts and other traffic from the data VLAN. A voice VLAN can simplify network configuration in some circumstances." https://community.fs.com/blog/auto-voip-vs-voice-vlan-what-s-the-difference.html Jumbo Frames "When jumbo frames on a VoIP/UC network are enabled, it can cause the same kind of delay to your network transmissions." "VoIP uses will always not benefit from jumbo frame, as VoIP like gaming, is latency and time sensitive. Jumbo Frame for Internet Purpose: You will not see any performance boost as the files that came across the internet does not support jumbo frame." https://www.ankmax.com/newsinfo/1358641.html#:~:text=VoIP%20uses%20will%20always%20not,does%20no "To summarize this general best practice guide, you should NOT enable jumbo frame feature as a general home user."
Question 35
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?
