Pass Guaranteed Quiz CompTIA - Accurate N10-009 Reliable Test Notes

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CompTIA N10-009 Exam Syllabus Topics:

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

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CompTIA Network+ Certification Exam Sample Questions (Q42-Q47):

NEW QUESTION # 42
A network administrator recently upgraded a wireless infrastructure with new APs. Users report that when stationary, the wireless connection drops and reconnects every 20 to 30 seconds. While reviewing logs, the administrator notices the APs are changing channels.
Which of the following is the most likely reason for the service interruptions?

Answer: D

Explanation:
If APs are changing channels frequently, it indicates automatic channel selection due to interference. This can cause temporary disconnections as the APs switch frequencies.
Breakdown of Options:
A . Channel interference - ✅ Correct answer. APs change channels automatically to avoid interference, causing disconnections.
B . Roaming misconfiguration - Roaming only affects moving users, but users report issues while stationary.
C . Network congestion - Causes slow speeds, not frequent disconnects.
D . Insufficient wireless coverage - Would cause weak signals, but not channel switching issues.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.6: Explain wireless troubleshooting techniques.


NEW QUESTION # 43
Which of the following fiber connector types is the most likely to be used on a network interface card?

Answer: B

Explanation:
* Definition of Fiber Connector Types:
* LC (Lucent Connector): A small form-factor fiber optic connector with a push-pull latching mechanism, commonly used for high-density applications.
* SC (Subscriber Connector or Standard Connector): A larger form-factor connector with a push-pull latching mechanism, often used in datacom and telecom applications.
* ST (Straight Tip): A bayonet-style connector, typically used in multimode fiber optic networks.
* MPO (Multi-fiber Push On): A connector designed to support multiple fibers (typically 12 or
24 fibers), used in high-density cabling environments.
* Common Usage:
* LC Connectors: Due to their small size, LC connectors are widely used in network interface cards (NICs) and high-density environments such as data centers. They allow for more connections in a smaller space compared to SC and ST connectors.
* SC and ST Connectors: These are larger and more commonly used in patch panels and older fiber installations but are less suitable for high-density applications.
* MPO Connectors: Primarily used for trunk cables in data centers and high-density applications but not typically on individual network interface cards.
* Selection Criteria:
* The small form-factor and high-density capabilities of LC connectors make them the preferred choice for network interface cards, where space and connection density are critical considerations.
References:
* CompTIA Network+ study materials on fiber optics and connector types.


NEW QUESTION # 44
A network administrator needs to connect two routers in a point-to-point configuration and conserve IP space.
Which of the following subnets should the administrator use?

Answer: B

Explanation:
Using a /30 subnet mask is the most efficient way to conserve IP space for a point-to-point connection between two routers. A /30 subnet provides four IP addresses, two of which can be assigned to the router interfaces, one for the network address, and one for the broadcast address. This makes it ideal for point-to-point links where only two usable IP addresses are needed.References:CompTIA Network+ study materials and subnetting principles.


NEW QUESTION # 45
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 # 46
A network technician is adding a new switch to increase capacity on the network. The technician connects the two switches using a single cable. Several hosts are moved to the new switch, but none of the hosts can access the network or internet. Which of the following should the technician do to resolve the issue?

Answer: D

Explanation:
The correct solution is to configure the connecting ports as trunk ports. When connecting switches, the uplink ports must be configured to carry traffic for multiple VLANs (trunking), not just a single access VLAN. Without trunking, VLAN tags may be dropped, and traffic from hosts will not reach the rest of the network or internet.
B . STP cables is a misnomer - STP refers to Spanning Tree Protocol or Shielded Twisted Pair cables, neither of which solves this logical configuration issue.
C . PoE budget is irrelevant because switches and hosts in this context don't require PoE.
D . Link aggregation (LACP, EtherChannel) is for increasing bandwidth/redundancy across multiple links, not required with a single cable.
By enabling trunking on the uplink ports, the switches can pass VLAN-tagged traffic, ensuring hosts connected to the new switch have access to the same resources as those on the existing switch.


NEW QUESTION # 47
......

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