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CompTIA N10-009 認定試験の出題範囲：

トピック出題範囲
トピック 1
  • Selection and configuration of wireless devices.
トピック 2
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions
トピック 3
  • Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
トピック 4
  • Network Security: This section of the exam for cybersecurity specialists and network security administrators covers the importance of basic network security concepts, Various types of attacks and their impact on the network, application of network security features, defense techniques, and solutions.| Network Troubleshooting: For help desk technicians and network support specialists, this section covers troubleshooting methodology, troubleshooting common cabling and physical interface issues, troubleshooting common issues with network services, and use of appropriate tools or protocols to solve networking issues.
トピック 5
  • Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.

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最新CompTIA N10-009｜100％合格率のN10-009実際試験試験｜試験の準備方法CompTIA Network+ Certification Exam復習範囲

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CompTIA Network+ Certification Exam 認定 N10-009 試験問題 (Q572-Q577):

質問 # 572
Which of the following is the best way to keep devices on during a loss of power?

正解：C

解説：
A UPS (Uninterruptible Power Supply) provides battery backup power to keep devices running during a loss of power, preventing shutdowns and data loss.
Power load refers to the amount of electrical power used, not a device or method. PDU (Power Distribution Unit) distributes power but does not provide backup during outages. Voltage is the measure of electrical potential, not a solution for power loss.
Only a UPS ensures continuous power during an outage.


質問 # 573
Which of the following steps of the troubleshooting methodology would most likely involve comparing current throughput tests to a baseline?

正解：B

解説：
Verifying full system functionality occurs after implementing a fix. This step ensures the solution resolved the issue and that performance is back to expected levels. Comparing current throughput to baseline measurements is part of validation testing to confirm everything is within normal operational parameters.
A . Implement the solution applies the fix but does not confirm results.
C . Document findings happens at the end of troubleshooting.
D . Test the theory comes earlier, when trying to confirm the suspected cause.
Reference (CompTIA Network+ N10-009):
Domain: Network Troubleshooting - Troubleshooting methodology steps, baselines, verification testing.


質問 # 574
A company is purchasing a 40Gbps broadband connection service from an ISP. Which of the following should most likely be configured on the 10G switch to take advantage of the new service?

正解：B

解説：
Since the switch supports only 10Gbps per port, achieving 40Gbps throughput requires link aggregation (LACP), which combines multiple 10Gbps links into one logical interface for higher bandwidth.


質問 # 575
Which of the following IP transmission types encrypts all of the transmitted data?

正解：B

解説：
Definition of ESP (Encapsulating Security Payload):
ESP is a part of the IPsec protocol suite used to provide confidentiality, integrity, and authenticity of data. ESP encrypts the payload and optional ESP trailer, providing data confidentiality.
ESP Functionality:
ESP can encrypt the entire IP packet, ensuring that the data within the packet is secure from interception or eavesdropping. It also provides options for data integrity and authentication.
ESP operates in two modes: transport mode (encrypts only the payload of the IP packet) and tunnel mode (encrypts the entire IP packet).


質問 # 576
Which of the following is used to redistribute traffic between one source and multiple servers that run the same service?

正解：A

解説：
A load balancer distributes incoming traffic across multiple servers running the same service to improve availability, performance, and scalability.


質問 # 577
......

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