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CompTIA N10-009 Exam Overview:

Certification Vendor:CompTIA
Exam Name:CompTIA Network+ Certification Exam
Exam Number:N10-009
Exam Format:Performance-based questions, Multiple-choice
Exam Duration:90 minutes
Real Exam Qty:Up to 90
Certificate Validity Period:3 years
Exam Price:$369 USD
Available Languages:Spanish, German, English, Portuguese, Japanese
Related Certifications:CompTIA Security+
CompTIA Cloud+
CompTIA A+
CompTIA Server+
Passing Score:720 (scale 100–900)
Recommended Training:CompTIA Study Materials
CompTIA Official Training
Exam Registration:CompTIA Official Registration
Pearson VUE Exam Scheduling
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 9–12 months of hands-on networking experience
Official Syllabus URL:https://www.comptia.org/en-us/certifications/network/

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CompTIA N10-009 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Selection and configuration of wireless devices.
Topic 2
  • Cloud concepts and connectivity options, and Common networking ports.
Topic 3
  • Networking Concepts: For network administrators and IT support professionals, this domain covers
Topic 4
  • 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 5
  • OSI reference model concepts, Comparison of networking appliances, applications, and functions
Topic 6
  • Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and

CompTIA Network+ Certification Exam Sample Questions (Q83-Q88):

NEW QUESTION # 83
Which of the following network access methods is used to securely access resources, such as a corporate cloud or network, as if they were directly connected?

Answer: A

Explanation:
A client-to-site VPN (remote-access VPN) is designed to let an individual user securely connect into an organization's network over an untrusted network (like the internet) and access resources as if the user were locally connected. Network+ objectives emphasize VPNs as encrypted tunnels that provide confidentiality and integrity for traffic, commonly using technologies such as IPsec or SSL/TLS-based VPNs. With a client- to-site VPN, the user's device establishes a tunnel to the corporate VPN gateway, receives routes (and sometimes DNS settings), and can reach internal subnets and cloud resources according to policy.
A jump box/host is a hardened intermediate system used to access sensitive segments, but it does not make the user's device behave as if it is directly on the network; it provides controlled administrative access. SSH is a secure remote management protocol for connecting to a host's command line-useful for administration, not full network access to multiple internal resources. A GRE tunnel provides encapsulation but does not provide encryption by itself, so it is not inherently "securely access" unless combined with additional security (e.g., GRE over IPsec). Therefore, client-to-site VPN is the correct choice.


NEW QUESTION # 84
Which of the following types of routes takes precedence when building a routing table for a given subnet?

Answer: D

Explanation:
The correct answer is Static because static routes have a lower administrative distance (AD) than most dynamic routing protocols, giving them higher priority when a router selects routes for the same destination network. According to CompTIA Network+ (N10-009) routing objectives, administrative distance is used to determine the trustworthiness of a route source when multiple routing protocols provide a path to the same subnet. The lower the administrative distance, the more preferred the route.
By default, a static route has an administrative distance of 1, which is lower than OSPF (110) and BGP (20 for eBGP, 200 for iBGP). Because of this, when identical routes to a subnet exist from both static and dynamic sources, the router installs the static route in the routing table.
A default route (0.0.0.0/0) is only used when no more specific route exists and does not take precedence over specific static or dynamic routes.
Therefore, when building the routing table for a given subnet and comparing route sources, static routes take precedence due to their lower administrative distance.


NEW QUESTION # 85
A network technician is designing a LAN for a new facility. The company is expecting more than 300 devices to connect to the network. Which of the following masks will provide the most efficient subnet?

Answer: C

Explanation:
The requirement is to support over 300 hosts. The subnet mask 255.255.254.0 (or /23) provides 512 addresses, 510 of which are usable - ideal for around 300 devices.
* 255.255.0.0 (/16) provides too many addresses.
* 255.255.192.0 (/18) gives 16384 addresses - overkill.
* 255.255.255.254 is invalid for host assignments (only 2 addresses, 0 usable).
From Andrew Ramdayal's guide:
"To support 300 hosts, a /23 subnet (255.255.254.0) offers 510 usable addresses - the most efficient choice without excessive overhead."


NEW QUESTION # 86
Which of the following is a modular device that provides the interface between fiber-optic or copper cabling and networking equipment?

Answer: A

Explanation:
An SFP (Small Form-factor Pluggable) transceiver is a modular device that provides the interface between fiber-optic or copper cabling and the networking equipment (e.g., switch or router). It operates primarily at Layer 2 (Data Link), converting optical or electrical signals into frames usable by the network device.
* A. SC is a fiber connector type, not the transceiver.
* B. DAC (Direct Attach Copper) is a passive copper cable assembly with fixed transceivers, not a general-purpose module.
* D. Twinaxial cable is a copper medium, not an interface device.
References (CompTIA Network+ N10-009):
* Domain: Networking Concepts - Transceivers (SFP, GBIC, QSFP), fiber connectivity, OSI model mapping.


NEW QUESTION # 87
A network technician is troubleshooting a web application's poor performance. The office has two internet links that share the traffic load. Which of the following tools should the technician use to determine which link is being used for the web application?

Answer: D

Explanation:
Understanding Tracert:
Traceroute Tool: tracert (Windows) or traceroute (Linux) is a network diagnostic tool used to trace the path that packets take from a source to a destination. It lists all the intermediate routers the packets traverse.
Determining Traffic Path:
Path Identification: By running tracert to the web application's destination IP address, the technician can identify which route the traffic is taking and thereby determine which internet link is being used.
Load Balancing Insight: If the office uses load balancing for its internet links, tracert can help verify which link is currently handling the traffic for the web application.


NEW QUESTION # 88
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