N10-009の無料問題集（172題）、N10-009認定試験参考書

CompTIA N10-009 問題集

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試験コード：N10-009

試験名称：CompTIA Network+ Certification Exam

最近更新時間：2025-01-21

問題と解答：全172問

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質問 1：
Which of the following is a cost-effective advantage of a split-tunnel VPN?
A. Monitoring detects insecure machines on the company's network.
B. Cloud-based traffic flows outside of the company's network.
C. Web traffic is filtered through a web filter.
D. More bandwidth is required on the company's internet connection.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
SIMULATION
After a recent power outage, users are reporting performance issues accessing the application servers. Wireless users are also reporting intermittent Internet issues.
INSTRUCTIONS
Click on each tab at the top of the screen. Select a widget to view information, then use the drop-down menus to answer the associated questions. If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

正解：
See the answer and solution below
Explanation:
Network Health:
WAN 2 appears to have a lower average latency and loss percentage, which would make it the preferred WAN station for VoIP traffic. VoIP traffic requires low latency and packet loss to ensure good voice quality and reliability. WAN 1 seems to have higher RAM and processor usage, which could also affect the performance of VoIP traffic.
Here's the summary of the key metrics for WAN 1 and WAN 2 from the image provided:
WAN 1:
Uplink Speed: 10G
Total Usage: 26.969GB Up / 1.748GB Down
Average Throughput: 353MBps Up / 23.42MBps Down
Loss: 2.51%
Average Latency: 24ms
Jitter: 9.5ms
WAN 2:
Uplink Speed: 1G
Total Usage: 930GB Up / 138GB Down
Average Throughput: 12.21MBps Up / 1.82MBps Down
Loss: 0.01%
Average Latency: 11ms
Jitter: 3.9ms
For VoIP traffic, low latency and jitter are particularly important to ensure voice quality. While WAN 1 has higher bandwidth and throughput, it also has higher latency and jitter compared to WAN 2. However, WAN 2 has much lower loss, lower latency, and lower jitter, which are more favorable for VoIP traffic that is sensitive to delays and variation in packet arrival times.
Given this information, WAN 2 would generally be preferred for VoIP traffic due to its lower latency, lower jitter, and significantly lower loss percentage, despite its lower bandwidth compared to WAN 1. The high bandwidth of WAN 1 may be more suitable for other types of traffic that are less sensitive to latency and jitter, such as bulk data transfers.

Device Monitoring:
the device that is experiencing connectivity issues is the APP Server or Router 1, which has a status of Down. This means that the server is not responding to network requests or sending any dat a. You may want to check the physical connection, power supply, and configuration of the APP Server to troubleshoot the problem.

質問 3：
A critical infrastructure switch is identified as end-of-support. Which of the following is the best next step to ensure security?
A. Ensure the current firmware has no issues.
B. Isolate the switch from the network.
C. Apply the latest patches and bug fixes.
D. Decommission and replace the switch.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Which of the following is created to illustrate the effectiveness of wireless networking coverage in a building?
A. Layer 3 network diagram
B. Logical diagram
C. Heat map
D. Service-level agreement
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 5：
A network administrator needs to change where the outside DNS records are hosted. Which of the following records should the administrator change the registrar to accomplish this task?
A. PTR
B. SOA
C. NS
D. CNAME
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Which of the following requires network devices to be managed using a different set of IP addresses?
A. Console
B. Jump box
C. Out of band
D. Split tunnel
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Users cannot connect to an internal website with an IP address 10.249.3.76. A network administrator runs a command and receives the following output:
1 3ms 2ms 3ms 192.168.25.234
2 2ms 3ms 1ms 192.168.3.100
3 4ms 5ms 2ms 10.249.3.1
4 *
5 '
6 *
7 *
Which of the following command-line tools is the network administrator using?
A. tcpdump
B. nmap
C. tracert
D. netstat
正解：C
解説: (Topexam メンバーにのみ表示されます)

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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	Cloud concepts and connectivity options, and Common networking ports.
トピック 2	OSI reference model concepts, Comparison of networking appliances, applications, and functions
トピック 3	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.

参照：https://www.comptia.org/certifications/network#examdetails

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