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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ Certification Exam |
| Exam Number: | N10-009 |
| Passing Score: | 720 (scale 100โ900) |
| Certificate Validity Period: | 3 years |
| Exam Price: | $369 USD |
| Exam Duration: | 90 minutes |
| Related Certifications: | CompTIA A+ CompTIA Cloud+ CompTIA Security+ CompTIA Server+ |
| Real Exam Qty: | Up to 90 |
| Exam Format: | Performance-based questions, Multiple-choice |
| Available Languages: | German, Japanese, Spanish, Portuguese, English |
| Recommended Training: | CompTIA Official Training CompTIA Study Materials |
| Exam Registration: | Pearson VUE Exam Scheduling CompTIA Official Registration |
| Sample Questions: | CompTIA N10-009 Sample Questions |
| Exam Way: | Online remote proctored or onsite at authorized Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; recommended: CompTIA A+ certification and 9โ12 months of hands-on networking experience |
| Official Syllabus URL: | https://www.comptia.org/en-us/certifications/network/ |
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NEW QUESTION # 171
Which of the following steps in the troubleshooting methodology includes checking logs for recent changes?
Answer: C
Explanation:
Reference: CompTIA Network+ Certification Exam Objectives - Troubleshooting section.
NEW QUESTION # 172
A firewall receives traffic on port 80 and forwards it to an internal server on port 88. Which of the following technologies is being leveraged?
Answer: D
Explanation:
The correct answer is PAT (Port Address Translation). According to the CompTIA Network+ N10-009 objectives, PAT is a form of Network Address Translation (NAT) that allows multiple internal hosts-or services-to be mapped to a single public IP address using different port numbers. PAT can also translate destination port numbers, which is exactly what is occurring in this scenario.
In this case, the firewall receives incoming traffic on port 80 (commonly used for HTTP) and forwards it to an internal server listening on port 88. This process is often referred to as port forwarding, which is a practical implementation of PAT. The firewall rewrites the destination port and potentially the destination IP address so that external clients can access internal services without exposing internal addressing schemes.
The other options do not apply. TLS and SSL are encryption protocols used to secure data in transit; they do not perform port translation. FHRP (First Hop Redundancy Protocol), such as HSRP or VRRP, provides gateway redundancy and high availability, not traffic forwarding or port remapping.
The Network+ objectives emphasize understanding how firewalls and NAT technologies manipulate IP addresses and ports to enable secure access to internal resources. PAT is the technology that enables this functionality, making it the correct answer.
NEW QUESTION # 173
A network administrator deployed wireless networking in the office area. When users visit the outdoor patio and try to download emails with large attachments or stream training videos, they notice buffering issues. Which of the following is the most likely cause?
Answer: C
Explanation:
The most likely cause of buffering issues when moving outdoors is signal degradation. Wireless signals weaken as they travel through obstacles such as walls, glass, and air, leading to weaker connections and reduced data rates.
NEW QUESTION # 174
A network administrator needs to set up a multicast network for audio and video broadcasting.
Which of the following networks would be the most appropriate for this application?
Answer: B
Explanation:
Understanding Multicast:
Multicast IP Address Range: The multicast address range is from 224.0.0.0 to 239.255.255.255, designated for multicast traffic.
Multicast Applications:
Use Case: Multicast is used for one-to-many or many-to-many communication, suitable for applications like audio and video broadcasting where the same data is sent to multiple recipients simultaneously.
Appropriate Network Selection:
224.0.0.0/24 Network: This range is reserved for multicast addresses, making it the appropriate choice for setting up a multicast network.
NEW QUESTION # 175
Following the implementation of a BYOD policy, some users in a high-density environment report slowness over the wireless connection. Some wireless controller reports indicate high latency and airtime contention. Which of the following is the most probable root cause?
Answer: D
Explanation:
Operating in the 2.4GHz band in a high-density BYOD environment causes congestion, interference, and airtime contention due to limited non-overlapping channels and many connected devices; without band steering, devices are not encouraged to move to the less congested 5GHz band, resulting in high latency and poor performance.
NEW QUESTION # 176
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