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CompTIA N10-009 Exam Syllabus Topics:

Topic	Details
Topic 1	Selection and configuration of wireless devices.
Topic 2	Cloud concepts and connectivity options, and Common networking ports.
Topic 3	Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.
Topic 4	Networking Concepts: For network administrators and IT support professionals, this domain covers
Topic 5	OSI reference model concepts, Comparison of networking appliances, applications, and functions

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CompTIA Network+ Certification Exam Sample Questions (Q295-Q300):

NEW QUESTION # 295
A user cannot access an external server for a client after connecting to a VPN. Which of the following commands would a support agent most likely use to examine the issue? (Select two).

A. route print
B. tracert
C. tcpdump
D. arp
E. nslookup
F. dig

Answer: A,B

Explanation:
When a user connects to a VPN and experiences connectivity issues to an external server, the problem is often related to routing or network path issues.
E:tracert:
Traces the path packets take from the user's device to the destination server.
Helps determine if the traffic is being blocked or misrouted.
F:route print:
Displays the device's routing table.
Helps diagnose whether traffic is being sent to the VPN tunnel instead of the correct external server.
Incorrect Options:
A: nslookup: Used for resolving domain names to IPs (DNS troubleshooting), but this issue is likely routing- related.
B: tcpdump: Captures packets for deep packet analysis, not typically the first step in diagnosing a VPN- related access issue.
C: arp: Used for resolving local network MAC addresses, not relevant for external VPN issues.
D: dig: Like nslookup, used for DNS queries, but not useful for routing problems.
Reference:
CompTIA Network+ N10-009 Official Study Guide - Chapter on Troubleshooting Network Connectivity

NEW QUESTION # 296
Which of the following must be implemented to securely connect a company's headquarters with a branch location?

A. Clientless VPN
B. Site-to-site VPN
C. Full-tunnel VPN
D. Split-tunnel VPN

Answer: B

Explanation:
Site-to-Site VPN: A site-to-site VPN is used to securely connect two networks, such as a company's headquarters and a branch location, over the internet. This type of VPN creates a secure tunnel for data transmission, ensuring confidentiality and integrity.
Split-tunnel VPN (A): Allows some traffic to bypass the VPN tunnel, which may not secure all communications.
Clientless VPN (B): Used for individual users to access the network without VPN client software.
Full-tunnel VPN (C): Typically used for individual user traffic rather than connecting two networks.
Reference: CompTIA Network+ Official Study Guide, Domain 1.3 (Secure Network Connections).

NEW QUESTION # 297
Which of the following devices can operate in multiple layers of the OSI model?

A. Transceiver
B. Hub
C. Switch
D. Modem

Answer: C

Explanation:
* Understanding Switches:
* Layer 2 (Data Link Layer):Traditional switches operate primarily at Layer 2, where they use MAC addresses to forward frames within a local network.
* Layer 3 (Network Layer):Layer 3 switches, also known as multilayer switches, can perform
* routing functions using IP addresses to forward packets between different networks.
* Capabilities of Multilayer Switches:
* VLANs and Inter-VLAN Routing:Multilayer switches can handle VLAN (Virtual Local Area Network) configurations and perform inter-VLAN routing, enabling communication between different VLANs.
* Routing Protocols:They can run routing protocols like OSPF (Open Shortest Path First) and EIGRP (Enhanced Interior Gateway Routing Protocol) to manage traffic between networks.
* Comparison with Other Devices:
* Hub:Operates only at Layer 1 (Physical Layer) and simply repeats incoming signals to all ports.
* Transceiver:Also operates at Layer 1, converting electrical signals to optical signals and vice versa.
* Modem:Primarily operates at Layer 1 and Layer 2, modulating and demodulating signals for transmission over different types of media.
* Practical Application:
* Multilayer switches are commonly used in enterprise networks to optimize performance and manage complex routing and switching requirements within a single device.
References:
* CompTIA Network+ study materials on network devices and the OSI model.

NEW QUESTION # 298
A network administrator needs to divide 192.168.1.0/24 into two equal halves. Which of the following subnet masks should the administrator use?

A. 255.255.255.128
B. 255.255.254.0
C. 255.255.0.0
D. 255.255.255.0

Answer: A

Explanation:
* Understanding Subnetting:
* Original Network:192.168.1.0/24 has a subnet mask of 255.255.255.0, which allows for 256 IP addresses (including network and broadcast addresses).
* Objective:Divide this network into two equal subnets.
* Calculating Subnet Mask:
* New Subnet Mask:To divide 192.168.1.0/24 into two equal halves, we need to borrow one bit from the host portion of the address, changing the subnet mask to 255.255.255.128 (/25).
* Subnet Breakdown:
* First Subnet: 192.168.1.0/25 (192.168.1.0 - 192.168.1.127)
* Second Subnet: 192.168.1.128/25 (192.168.1.128 - 192.168.1.255)
* Verification:
* Each subnet now has 128 IP addresses (126 usable IP addresses, excluding the network and broadcast addresses).
* Comparison with Other Options:
* 255.255.0.0 (/16):Provides a much larger network, not dividing the original /24 network.
* 255.255.254.0 (/23):Also creates a larger subnet, encompassing more than the original /24 network.
* 255.255.255.0 (/24):Maintains the original subnet size, not dividing it.
References:
* CompTIA Network+ study materials on subnetting and IP addressing.

NEW QUESTION # 299
A network technician needs to resolve some issues with a customer's SOHO network. The customer reports that some of the PCs are not connecting to the network, while others appear to be working as intended.
INSTRUCTIONS
Troubleshoot all the network components.
Review the cable test results first, then diagnose by clicking on the appropriate PC, server, and Layer 2 switch.
Identify any components with a problem and recommend a solution to correct each problem.
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 the answer and solution below:
Explanation:
A computer network diagram with many boxes and text AI-generated content may be incorrect.

NEW QUESTION # 300
......

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