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CompTIA N10-009 Exam Overview:

Certification Vendor:CompTIA
Exam Name:CompTIA Network+ Certification Exam
Exam Number:N10-009
Real Exam Qty:Maximum 90
Exam Price:$369 USD
Related Certifications:CompTIA Network+
Available Languages:English, Spanish, Portuguese, Japanese, German
Passing Score:720 (on a scale of 100-900)
Certificate Validity Period:3 years
Exam Duration:90 minutes
Exam Format:Multiple-choice, Performance-based
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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CompTIA N10-009 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Networking Concepts: For network administrators and IT support professionals, this domain covers
Topic 2
  • 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.
Topic 3
  • Cloud concepts and connectivity options, and Common networking ports.
Topic 4
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions

CompTIA Network+ Certification Exam Sample Questions (Q374-Q379):

NEW QUESTION # 374
A systems administrator is resolving connectivity issues to an organization's DNS server. While troubleshooting, the administrator performs remote scans ana receives the following output:

Which or the following should the systems administrator investigate?

Answer: C

Explanation:
DNS requires port 53 to be reachable. The scan output shows port 53 is open, but other expected service ports may be blocked. Since connectivity issues persist despite DNS appearing active, the next step is to examine firewall rules that may be restricting access to or from the DNS server.


NEW QUESTION # 375
Which of the following is enforced through legislation?

Answer: D

Explanation:
GDPR (General Data Protection Regulation)is alegal frameworkenforced by the European Union to protect personal data and privacy. Unlike internal organizational policies such as AUPs or codes of conduct, GDPR is alegislated regulation, and organizations must comply or face legal consequences.
Reference:Section 4.1 - Basic Network Security Concepts - "GDPR and Compliance Regulations"


NEW QUESTION # 376
Employees report that the network is slow. The network engineer thinks the performance issue is with an upstream router. Which of the following tools should the engineer use to determine the location of the issue?

Answer: A

Explanation:
To determine where slowness is occurring-especially if an upstream router is suspected-the best tools are ping and tracert/traceroute. Network+ (N10-009) troubleshooting objectives emphasize using these to test connectivity, latency, and the path packets take through the network. Ping measures reachability and round- trip time; rising latency or packet loss can indicate congestion or a failing link/device. Tracert identifies each hop along the route and reports per-hop response times, helping pinpoint whether delays begin at a specific hop (for example, the default gateway, the upstream router, or a provider edge). This allows the engineer to localize the problem area and decide whether the issue is internal, at the upstream router, or beyond.
nslookup and dig are DNS tools; they diagnose name resolution, not general network slowness location.
Nmap focuses on scanning ports/hosts, and a "speed tester" measures throughput but does not locate the failing hop. tcpdump and protocol analyzer can reveal retransmissions, windowing, or application behavior, but they are not the fastest first-choice tools for locating an upstream routing/performance bottleneck across hops. Hence, tracert and ping are the correct pair.


NEW QUESTION # 377
A network engineer receives a new router to use for WAN connectivity. Which of the following best describes the layer the network engineer should connect the new router to?

Answer: C

Explanation:
Comprehensive and Detailed Explanation (paraphrased, aligned to N10-009):
In a spine-leaf architecture, endpoints (including servers, firewalls, and WAN/edge routers) connect to leaf switches. Leaf switches then uplink to spine switches; spine switches do not have endpoints connected directly to them. Therefore, a WAN router (an external/edge device) should connect to the leaf layer-often specifically to a "border leaf" that handles external connectivity.
Why not B. Core or D. Spine? In spine-leaf, "core" isn't a formal layer, and spines are designed only to interconnect leafs, not to terminate endpoints.
Why not A. Access? "Access" is a term from the traditional three-tier model (access-distribution-core). In modern spine-leaf language, the analogous layer for endpoint attachment is the leaf.
Reference (CompTIA Network+ N10-009):


NEW QUESTION # 378
Which of the following configurations exempts traffic to the internet from traversing a VPN?

Answer: C


NEW QUESTION # 379
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