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Detailed CompTIA N10-009 Study Dumps & N10-009 Pdf Exam Dump

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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

Networking Concepts: For network administrators and IT support professionals, this domain covers

CompTIA Network+ Certification Exam Sample Questions (Q247-Q252):

NEW QUESTION # 247
A user's home mesh wireless network is experiencing latency issues. A technician has:
Performed a speed test.
Rebooted the devices.
Performed a site survey.
Performed a wireless packet capture.
The technician reviews the following information:

The technician notices in the packet capture that frames were retransmitted. Which of the following is the most likely cause of the user's network issue?

A. The SSIDs should not be the same.
B. The devices are incompatible with the mesh network.
C. The network has too much overlap.
D. The nodes are underpowered.

Answer: C

Explanation:
Comprehensive and Detailed Step-by-Step
Too much overlap on the same channel (all devices on channel 11) causes interference, leading to retransmissions and high latency.
Same SSIDs (A) are expected in mesh networks.
Device compatibility (C) would show different symptoms.
Node power (D) affects coverage, not congestion.
Reference: CompTIA Network+ N10-009 Official Documentation - Wireless Troubleshooting & Signal Interference.

NEW QUESTION # 248
A customer calls the help desk to report issues connection to the internet. The customer can reach a local database server. A technician goes to the site and examines the configuration:

Which of the following is causing the user's issue?

A. Failed root bridge
B. Incorrect DNS
C. Poor upstream routing
D. Unreachable gateway

Answer: D

Explanation:
The customer can accesslocal resources(a database server), which meanslocal networking is working.
However, the inability to reach the internet suggests an issue with thedefault gateway. If thedefault gateway is unreachable, packets will not be routed outside the local network.
Breakdown of Options:
* A. Incorrect DNS-DNS issueswould cause problemsresolving domain names, but the user should still be able to access external resources via IP addresses.
* B. Unreachable gateway-#Correct answer.If thedefault gateway is incorrect or unreachable, the devicecannot route traffic to the internet.
* C. Failed root bridge-STP (Spanning Tree Protocol) failurescauseswitching issues, but the user can still access local devices, meaning STP is not the problem.
* D. Poor upstream routing- Wouldaffect the entire network, not just one user.

NEW QUESTION # 249
Which of the following can beimplementedtoadd an additional layer of securitybetween acorporate networkandnetwork management interfaces?

A. Console server
B. Jump box
C. API interface
D. In-band management

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
Ajump boxis ahardened, isolated systemthat providessecure accesstocritical infrastructure deviceslike routers and firewalls.

NEW QUESTION # 250
A virtual machine has the following configuration:
*IPv4 address: 169.254.10.10
*Subnet mask: 255.255.0.0
The virtual machine can reach colocated systems but cannot reach external addresses on the Internet. Which of the following Is most likely the root cause?

A. TheDHCP server is offline.
B. TheIP address is an RFC1918 private address.
C. Thesubnet mask is incorrect.
D. TheDNS server is unreachable.

Answer: A

Explanation:
* Understanding the 169.254.x.x Address:
* An IPv4 address in the range of 169.254.x.x is an Automatic Private IP Addressing (APIPA) address, assigned when a DHCP server is unavailable.
* DHCP Server Offline:
* APIPA Assignment: When a device cannot obtain an IP address from a DHCP server, it assigns itself an APIPA address to enable local network communication. This allows communication with other devices on the same local subnet but not with external networks.
* Resolution: Ensure the DHCP server is operational. Check for connectivity issues between the virtual machine and the DHCP server, and verify the DHCP server settings.
* Comparison with Other Options:
* The subnet mask is incorrect: The subnet mask 255.255.0.0 is appropriate for the 169.254.x.x range and does not prevent external access by itself.
* The IP address is an RFC1918 private address: RFC1918 addresses are private IP ranges (10.x.x.
x, 172.16.x.x-172.31.x.x, 192.168.x.x) but 169.254.x.x is not one of them.
* The DNS server is unreachable: While this could affect name resolution, it would not prevent the assignment of a non-APIPA address or local network communication.
* Troubleshooting Steps:
* Verify the DHCP server's status and connectivity.
* Restart the DHCP service if necessary.
* Renew the IP lease on the virtual machine using commands such as ipconfig /renew (Windows) or dhclient (Linux).
References:
* CompTIA Network+ study materials on IP addressing and DHCP troubleshooting.

NEW QUESTION # 251
Which of the following focuses on application delivery?

A. DaaS
B. PaaS
C. IaaS
D. SaaS

Answer: D

Explanation:
Platform as a Service (PaaS) focuses on application delivery. It provides a platform for developers to build, deploy, and manage their applications without having to worry about the underlying infrastructure. PaaS providers typically offer a variety of services, such as:
Operating system
Programming languages
Databases
Web servers
Application servers
Storage
Networking
Load balancing
Monitoring
PaaS can be a good option for businesses that want to develop and deploy applications quickly and easily, without having to worry about the underlying infrastructure.

NEW QUESTION # 252
......

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