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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Network+ Certification Exam |
| Exam Number: | N10-009 |
| Related Certifications: | CompTIA Network+ |
| Exam Price: | $369 USD |
| Available Languages: | English, Spanish, Japanese, Portuguese, German |
| Exam Format: | Multiple-choice, Performance-based |
| Real Exam Qty: | Maximum 90 |
| Exam Duration: | 90 minutes |
| Passing Score: | 720 (on a scale of 100-900) |
| Certificate Validity Period: | 3 years |
| 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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NEW QUESTION # 585
A network engineer added more APs to improve wireless coverage. However, users now report that the connectivity disconnects and reconnects repeatedly. Which of the following is causing the issue?
Answer: D
Explanation:
Adding more APs without proper channel planning can cause channel overlap, resulting in interference that leads to frequent disconnects and reconnects for users.
NEW QUESTION # 586
A network administrator needs to deploy a subnet using an IP address range that can support at least 260 devices with the fewest wasted addresses. Which of the following subnets should the administrator use?
Answer: B
Explanation:
To support at least 260 hosts, you need at least 512 total IP addresses (accounting for network/broadcast overhead).
/23 (255.255.254.0) gives 510 usable IPs, ideal for 260 devices with minimal waste.
/24 (255.255.255.0) gives only 254 usable -- not enough.
/22 (1022 usable) and /21 (2046 usable) would work but result in significant address waste.
NEW QUESTION # 587
You are tasked with verifying the following requirements are met in order to ensure network security.
Requirements:
Datacenter
Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage Provide a dedicated server to resolve IP addresses and hostnames correctly and handle port 53 traffic Building A Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage Provide devices to support 5 additional different office users Add an additional mobile user Replace the Telnet server with a more secure solution Screened subnet Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage Provide a server to handle external 80/443 traffic Provide a server to handle port 20/21 traffic INSTRUCTIONS Drag and drop objects onto the appropriate locations. Objects can be used multiple times and not all placeholders need to be filled.
Available objects are located in both the Servers and Devices tabs of the Drag & Drop menu.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
See explanation below.
Explanation:
Screened Subnet devices - Web server, FTP server
Building A devices - SSH server top left, workstations on all 5 on the right, laptop on bottom left DataCenter devices - DNS server.
A screenshot of a computer AI-generated content may be incorrect.
A screenshot of a computer AI-generated content may be incorrect.
A screenshot of a computer AI-generated content may be incorrect.
NEW QUESTION # 588
Which of the following are the best device-hardening techniques for network security? (Select two).
Answer: D,E
Explanation:
Disabling unused ports prevents unauthorized access and reduces the attack surface by ensuring that no inactive or unmonitored entry points are available for exploitation. Changing default passwords is critical for security because default credentials are widely known and can easily be exploited by attackers. These techniques are fundamental steps in hardening devices against unauthorized access and ensuring network security. Reference: CompTIA Network+ Exam Objectives and official study guides.
NEW QUESTION # 589
A systems administrator is looking for operating system information, running services, and network ports that are available on a server. Which of the following software tools should the administrator use to accomplish this task?
Answer: D
Explanation:
To identify a server's available network ports, running services, and often operating system details, the best tool listed is nmap. In the Network+ (N10-009) toolset, nmap is a standard utility used for network discovery and security assessment, including port scanning (which TCP/UDP ports are open), service enumeration (what application/service is listening on those ports), and service/version detection. With the appropriate scan options and permissions, nmap can also provide OS fingerprinting, which estimates the server's operating system by analyzing responses to crafted packets.
The other options do not meet all stated requirements. nslookup is used for DNS queries (name-to-IP and record lookups) and does not enumerate ports/services. traceroute (or tracert) maps the path packets take through the network to a destination and helps diagnose routing/latency issues, not services/ports. netstat shows local socket statistics on the host where it is executed (active connections, listening ports, and interface stats), but it does not reliably provide remote OS identification and is not a dedicated service/OS enumeration scanner like nmap.
Therefore, nmap is the correct tool to accomplish the task as described.
NEW QUESTION # 590
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