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Quiz 2025 Professional CompTIA Test N10-009 Free

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CompTIA Network+ Certification Exam Sample Questions (Q49-Q54):

NEW QUESTION # 49
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:

NEW QUESTION # 50
A small business is deploying new phones, and some of the phones have full HD videoconferencing features.
The Chief Information Officer (CIO) is concerned that the network might not be able to handle the traffic if it reaches a certain threshold. Which of the following can the network engineer configure to help ease these concerns?

A. An IP helper to direct VoIP traffic
B. A smaller subnet mask
C. A VLAN with 100Mbps speed limits
D. Full duplex on all user ports

Answer: D

Explanation:
Full duplex mode allows devices to send and receive data simultaneously, improving network performance and reducing congestion, which is critical for VoIP and video conferencing.
Breakdown of Options:
A: A VLAN with 100Mbps speed limits - VLANs segment traffic but limiting speeds to 100Mbps would worsen video performance.
B: An IP helper to direct VoIP traffic - IP helper is used for DHCP relay, not for VoIP optimization.
C: A smaller subnet mask - A smaller subnet reduces IP address availability but does not improve network performance.
D: Full duplex on all user ports - Correct answer. Full duplex eliminates collisions, allowing better VoIP and video performance.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 2.2: Compare and contrast various networking devices.
IEEE 802.3: Ethernet Full Duplex Operation

NEW QUESTION # 51
A network administrator wants users to be able to authenticate to the corporate network using a port-based authentication framework when accessing both wired and wireless devices. Which of the following is the best security feature to accomplish this task?

A. Port security
B. Access control list
C. MAC filtering
D. 802.1X

Answer: D

Explanation:
802.1X is a port-based network access control (PNAC) protocol that provides an authentication mechanism to devices wishing to connect to a LAN or WLAN. It is widely used for secure network access, ensuring that only authenticated devices can access the network, whether they are connecting via wired or wireless means.
802.1X works in conjunction with an authentication server, such as RADIUS, to validate the credentials of devices trying to connect.References:CompTIA Network+ study materials.

NEW QUESTION # 52
Which of the following technologies is thebest choicetolisten for requests and distribute user trafficacross web servers?

A. Router
B. Firewall
C. Load balancer
D. Switch

Answer: C

Explanation:
Comprehensive and Detailed Explanation:
Aload balanceris designed todistribute user requestsacross multiple servers toensure high availability and performance.
Breakdown of Options:
* A. Router- Directs trafficbetween networks,not between web servers.
* B. Switch- Works atLayer 2, doesnot distribute web traffic.
* C. Firewall- Secures network traffic, butdoes not distribute load.
* D. Load balancer-#Correct answer.Optimizes web traffic distributionacross multiple servers.

NEW QUESTION # 53
After a recent power outage, users are reporting performance issues accessing the application servers. Wireless users are also reporting intermittent Internet issues.
INSTRUCTIONS
Click on each tab at the top of the screen. Select a widget to view information, then use the drop-down menus to answer the associated questions. 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:
Network Health:
WAN 2 appears to have a lower average latency and loss percentage, which would make it the preferred WAN station for VoIP traffic. VoIP traffic requires low latency and packet loss to ensure good voice quality and reliability. WAN 1 seems to have higher RAM and processor usage, which could also affect the performance of VoIP traffic.
Here's the summary of the key metrics for WAN 1 and WAN 2 from the image provided:
* WAN 1:
* Uplink Speed: 10G
* Total Usage: 26.969GB Up / 1.748GB Down
* Average Throughput: 353MBps Up / 23.42MBps Down
* Loss: 2.51%
* Average Latency: 24ms
* Jitter: 9.5ms
* WAN 2:
* Uplink Speed: 1G
* Total Usage: 930GB Up / 138GB Down
* Average Throughput: 12.21MBps Up / 1.82MBps Down
* Loss: 0.01%
* Average Latency: 11ms
* Jitter: 3.9ms
For VoIP traffic, low latency and jitter are particularly important to ensure voice quality. While WAN 1 has higher bandwidth and throughput, it also has higher latency and jitter compared to WAN 2. However, WAN 2 has much lower loss, lower latency, and lower jitter, which are more favorable for VoIP traffic that is sensitive to delays and variation in packet arrival times.
Given this information, WAN 2 would generally be preferred for VoIP traffic due to its lower latency, lower jitter, and significantly lower loss percentage, despite its lower bandwidth compared to WAN 1. The high bandwidth of WAN 1 may be more suitable for other types of traffic that are less sensitive to latency and jitter, such as bulk data transfers.

Device Monitoring:
the device that is experiencing connectivity issues is the APP Server or Router 1, which has a status of Down
. This means that the server is not responding to network requests or sending any data. You may want to check the physical connection, power supply, and configuration of the APP Server to troubleshoot the problem.

NEW QUESTION # 54
......

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