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CompTIA N10-009認定試験の難しさで近年にほとんどの受験生は資格認定試験に合格しなっかたと良く知られます。だから、我々社の有効な試験問題集は長年にわたりCompTIA N10-009認定資格試験問題集作成に取り組んだIT専門家によって書いてます。実際の試験に表示される質問と正確な解答はあなたのCompTIA N10-009認定資格試験合格を手伝ってあげます。
| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ Certification Exam |
| Exam Number: | N10-009 |
| Real Exam Qty: | Maximum 90 |
| Exam Price: | $369 USD |
| Passing Score: | 720 (on a scale of 100-900) |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple-choice, Performance-based |
| Available Languages: | German, Portuguese, Japanese, Spanish, English |
| Exam Duration: | 90 minutes |
| Related Certifications: | CompTIA Network+ |
| Sample Questions: | CompTIA N10-009 Sample Questions |
| Exam Way: | Online or in-person testing at Pearson VUE test centers. |
| Pre Condition: | CompTIA recommends A+ certification and 9-12 months of networking experience. |
| Official Syllabus URL: | https://www.comptia.org/en/certifications/network/ |
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質問 # 450
Which of the following is the best use case for PAT?
正解：A
解説：
Port Address Translation allows multiple internal devices to share a single public IP address by differentiating connections using port numbers.
質問 # 451
A network engineer is now in charge of all SNMP management in the organization. The engineer must use a SNMP version that does not utilize plaintext dat a. Which of the following is the minimum version of SNMP that supports this requirement?
正解：D
解説：
SNMPv3 is the version of the Simple Network Management Protocol that introduces security enhancements, including message integrity, authentication, and encryption. Unlike previous versions (v1 and v2c), SNMPv3 supports encrypted communication, ensuring that data is not transmitted in plaintext. This provides confidentiality and protects against eavesdropping and unauthorized access.
Reference: CompTIA Network+ study materials.
質問 # 452
Users are reporting issues with mobile phone connectivity after a cellular repeater was recently installed. Users also note that the phones are rapidly losing battery charge. Which of the following should the technician check first to troubleshoot the issue?
正解：B
解説：
When signal strength is poor, mobile devices constantly boost their transmission power in an attempt to maintain a stable connection. This results in dropped calls/data and rapid battery drain. Since a repeater was installed, misalignment or misconfiguration could be degrading the signal strength.
A . WPS applies to Wi-Fi, not cellular repeaters.
C . Channel frequency might matter for interference, but signal strength is the most direct cause of the described symptoms.
D . Power budget applies to PoE and wired devices, not mobile phones.
Reference (CompTIA Network+ N10-009):
質問 # 453
A network technician needs to configure IP addressing in a Class C network with eight subnets total:
- Three for 60 hosts
- Three for 15 hosts
- Two for seven hosts
Which of the following solutions should the technician use to accomplish this task?
正解：A
解説：
Variable-Length Subnet Masking allows creating subnets of different sizes within the same Class C network, matching the required host counts of 60, 15, and 7 hosts efficiently.
質問 # 454
A critical infrastructure switch is identified as end-of-support. Which of the following is the best next step to ensure security?
正解：C
解説：
Understanding End-of-Support:
End-of-Support Status: When a vendor declares a device as end-of-support, it means the device will no longer receive updates, patches, or technical support. This poses a security risk as new vulnerabilities will not be addressed.
Risks of Keeping an End-of-Support Device:
Security Vulnerabilities: Without updates, the switch becomes susceptible to new security threats.
Compliance Issues: Many regulatory frameworks require that critical infrastructure be maintained with supported and secure hardware.
Best Next Step - Replacement:
Decommission and Replace: The most secure approach is to replace the end-of-support switch with a new, supported model. This ensures the infrastructure remains secure and compliant with current standards.
Planning and Execution: Plan for the replacement by evaluating the network's needs, selecting a suitable replacement switch, and scheduling downtime for the hardware swap.
質問 # 455
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