CompTIA N10-009 Unterlage - N10-009 Testfagen

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CompTIA N10-009 Prüfungsplan:

Thema	Einzelheiten
Thema 1	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.
Thema 2	Selection and configuration of wireless devices.
Thema 3	Cloud concepts and connectivity options, and Common networking ports.
Thema 4	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.

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CompTIA N10-009 Testfagen - N10-009 Deutsch Prüfung

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CompTIA Network+ Certification Exam N10-009 Prüfungsfragen mit Lösungen (Q185-Q190):

185. Frage
An investment bank is seeking a DR backup solution. Which of the following provides the most cost-effective backup site?

A. Cold
B. Warm
C. Hot
D. Cluster

Antwort: A

Begründung:
*Cold sites are the most cost-effective disaster recovery (DR) option since they require the least infrastructure investment. They provide space and power but no pre-configured systems.
*Hot sites (A) are fully operational and very expensive.
*Warm sites (D) offer some pre-configured hardware but still require setup, making them more costly than cold sites.
*Clusters (C) are active failover systems, not DR sites.
#Reference: CompTIA Network+ N10-009 Official Documentation - Disaster Recovery & Business Continuity Planning.

186. Frage
A network engineer configures a new switch and connects it to an existing switch for expansion and redundancy. Users immediately lose connectivity to the network. The network engineer notes the following spanning tree information from both switches:
Switch 1
Port State Cost
1 Forward 2
2 Forward 2
Switch 2
Port State Cost
1 Forward 2
2 Forward 2
Which of the following best describes the issue?

A. The port cost should not be equal.
B. A root bridge needs to be identified.
C. The switch should be configured for RSTP.
D. The ports should use link aggregation.

Antwort: B

Begründung:
The issue is that no root bridge has been identified. In STP, a root bridge is necessary to manage redundant paths and avoid loops in the network. Without a root bridge, all switches will assume they can forward traffic, causing a network loop and connectivity problems.
=

187. Frage
Which of the following troubleshooting steps would provide a change advisory board with the information needed to make a decision?

A. Establish a plan of action.
B. Develop a theory of probable cause.
C. Test the theory to determine cause.
D. Identify the problem.

Antwort: A

Begründung:
Comprehensive and Detailed In-Depth Explanation:
A Change Advisory Board (CAB) reviews and approves network changes. Before approval, they need a detailed action plan outlining the change, potential impacts, and mitigation strategies.
* A Plan of Action includes risk assessments, rollback procedures, and deployment steps, which are critical for decision-making.
? Reference: CompTIA Network+ (N10-009) Official Study Guide - Section: Network Troubleshooting Methodologies

188. Frage
A network technician needs to resolve some issues with a customer's SOHO network.
The customer reports that some of the devices are not connecting to the network, while others appear to work as intended.
INSTRUCTIONS
Troubleshoot all the network components and review the cable test results by Clicking on each device and cable.
Diagnose the appropriate component(s) by identifying any components with a problem and recommend a solution to correct each problem.

Cable Test Results:
Cable 1:

Cable 2:

Cable 3:

Cable 4:

Antwort:

Begründung:
See the Explanation for detailed information on this simulation.
Explanation:
(Note: Ips will be change on each simulation task, so we have given example answer for the understanding) To troubleshoot all the network components and review the cable test results, you can use the following steps:
* Click on each device and cable to open its information window.
* Review the information and identify any problems or errors that may affect the network connectivity or performance.
* Diagnose the appropriate component(s) by identifying any components with a problem and recommend a solution to correct each problem.
* Fill in the remediation form using the drop-down menus provided.
Here is an example of how to fill in the remediation form for PC1:
* The component with a problem is PC1.
* The problem is Incorrect IP address.
* The solution is Change the IP address to 192.168.1.10.
You can use the same steps to fill in the remediation form for other components.
To enter commands in each device, you can use the following steps:
* Click on the device to open its terminal window.
* Enter the command ipconfig /all to display the IP configuration of the device, including its IP address, subnet mask, default gateway, and DNS servers.
* Enter the command ping <IP address> to test the connectivity and reachability to another device on the network by sending and receiving echo packets. Replace <IP address> with the IP address of the destination device, such as 192.168.1.1 for Core Switch 1.
* Enter the command tracert <IP address> to trace the route and measure the latency of packets from the device to another device on the network by sending and receiving packets with increasing TTL values.
Replace <IP address> with the IP address of the destination device, such as 192.168.1.1 for Core Switch 1.
Here is an example of how to enter commands in PC1:
* Click on PC1 to open its terminal window.
* Enter the command ipconfig /all to display the IP configuration of PC1. You should see that PC1 has an incorrect IP address of 192.168.2.10, which belongs to VLAN 2 instead of VLAN 1.
* Enter the command ping 192.168.1.1 to test the connectivity to Core Switch 1. You should see that PC1 is unable to ping Core Switch 1 because they are on different subnets.
* Enter the command tracert 192.168.1.1 to trace the route to Core Switch 1. You should see that PC1 is unable to reach Core Switch 1 because there is no route between them.
You can use the same steps to enter commands in other devices, such as PC3, PC4, PC5, and Server 1.

189. Frage
After installing a series of Cat 8 keystones, a data center architect notices higher than normal interference during tests. Which of the following steps should the architect take to troubleshoot the issue?

A. Check to see if the end connections were wrapped in copper tape before terminating.
B. Run a speed test on a device that can only achieve 100Mbps speeds.
C. Connect the RX/TX wires to different pins.
D. Use passthrough modular crimping plugs instead of traditional crimping plugs.

Antwort: A

Begründung:
* Importance of Proper Termination:
* Cat 8 cabling requires precise termination practices to ensure signal integrity and reduce interference. One common requirement is to wrap the end connections in copper tape to maintain shielding and reduce electromagnetic interference (EMI).
* Interference Troubleshooting:
* Interference in high-frequency cables like Cat 8 can be caused by improper shielding or grounding. Checking the end connections for proper wrapping in copper tape is a crucial step.
* Why Other Options are Less Likely:
* Passthrough modular crimping plugs:Not specifically related to interference issues and are typically used for ease of cable assembly.
* Connecting RX/TX wires to different pins:Would likely result in no connection or incorrect data transmission rather than interference.
* Running a speed test on a device that can only achieve 100Mbps speeds:This would not diagnose interference and would not provide relevant information for Cat 8 cabling rated for higher speeds.
* Corrective Actions:
* Verify that all end connections are properly wrapped with copper tape before termination.
* Ensure that the shielding is continuous and properly grounded throughout the installation.
* Retest the cabling for interference after making corrections.
References:
* CompTIA Network+ study materials and structured cabling installation guides.

190. Frage
......

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