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| Section | Weight | Objectives |
|---|---|---|
| Network Troubleshooting | 24% | - Performance and latency problems - Troubleshooting methodology - Tools and command-line utilities - Connectivity issues - Wireless and security troubleshooting |
| Network Operations | 19% | - Network monitoring and documentation - Infrastructure automation basics - Business continuity and disaster recovery - High availability and redundancy - Performance management and optimization |
| Network Implementations | 20% | - Routing concepts and protocols - Network services configuration - Wireless standards and deployment - Physical network installation - Switching technologies and configurations |
| Network Security | 14% | - Authentication and access control - Security concepts and frameworks - Segmentation and traffic protection - Threats, vulnerabilities, and mitigation - Network hardening and secure configuration |
| Networking Fundamentals | 23% | - OSI and TCP/IP models - Network devices and cabling - Network topologies and types - Ports, protocols, and services - IP addressing and subnetting |
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NEW QUESTION # 345
Which of the following steps in the troubleshooting methodology would be next after putting preventive measures in place?
Answer: A
Explanation:
After implementing a solution and putting preventive measures in place, the next step is to verify that the system is functioning correctly. This ensures that the issue has been fully resolved.
NEW QUESTION # 346
SIMULATION
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:
Answer:
Explanation:
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.
NEW QUESTION # 347
of the following ports is a secure protocol
Answer: A
Explanation:
Port 443 is used by HTTPS (Hypertext Transfer Protocol Secure), which encrypts web traffic using SSL/TLS, making it a secure protocol.
Port 20 is used for FTP data transfer and is not secure.
Port 23 is used by Telnet, which transmits data in plaintext and is not secure.
Port 445 is used for SMB (Server Message Block) over IP, which is not inherently secure unless additional security layers are applied.
Only port 443 provides secure, encrypted communication by default.
NEW QUESTION # 348
Which of the following protocols is used to route traffic on the public internet?
Answer: A
Explanation:
Border Gateway Protocol (BGP) is the primary protocol used to route traffic on the public internet.
It allows ISPs and large networks to exchange routing information, making it an Exterior Gateway Protocol (EGP).
NEW QUESTION # 349
A network administrator's device is experiencing severe Wi-Fi interference within the corporate headquarters causing the device to constantly drop off the network. Which of the following is most likely the cause of the issue?
Answer: D
Explanation:
Reference: CompTIA Network+ Certification Exam Objectives - Wireless Networks section.
NEW QUESTION # 350
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