The CompTIA Troubleshooting Methodology states that after testing the theory, the next step is to establish a plan of action to resolve the issue.
Troubleshooting Steps:
Identify the problem.
Establish a theory of probable cause.
Test the theory to determine the cause.
Establish a plan of action and implement the solution. # (Correct step) Verify full system functionality.
Document findings, actions, and outcomes.
Breakdown of Options:
A: Verify full system functionality - Happens after implementing the solution.
B: Document the findings and outcomes - Final step, happens after resolving the issue.
C: Establish a plan of action - # Correct answer. Comes immediately after confirming the cause.
D: Identify the problem - First step, already completed.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 5.1: Explain network troubleshooting methodology.

This process describes Zero-touch provisioning (ZTP), where a device automatically pulls its configuration from a cloud controller or URL once connected to the internet. It's common in SD-WAN and modern network appliances.
A). SASE (Secure Access Service Edge) refers to cloud-delivered network security, not a provisioning method.
C). Infrastructure as code automates infrastructure deployment using code, but this scenario specifically fits ZTP.
D). Configuration management tracks and maintains system configurations but doesn't describe the installation process.
# Reference:
CompTIA Network+ N10-009 Official Objectives: 4.3 - Explain remote access methods and automation.

Quality of Service (QoS)is the best cost-effective solution. It prioritizes traffic based on application criticality.
If the bandwidth is limited and only a few users are affected, prioritizing that application traffic can improve performance without needing costly bandwidth upgrades or direct connections.
Reference:Section 1.2 - Networking Appliances, Applications, and Functions - "Quality of Service (QoS)"

*nslookup allows querying DNS records to verify if the new server is correctly resolving domain names.
*ping (A) tests basic connectivity, not DNS configuration.
*tracert (B) shows network path latency but doesn't test DNS.
*tcpdump (C) captures packets but isn't ideal for DNS verification.
#Reference: CompTIA Network+ N10-009 Official Documentation - DNS Testing Tools.

The correct answer is SNMP (Simple Network Management Protocol) because it is specifically designed to collect and transmit network management and status information between managed devices and management systems. According to CompTIA Network+ (N10-009) objectives, SNMP is used for monitoring and managing network devices such as routers, switches, servers, and printers.
SNMP operates using a manager-agent model. The SNMP manager (such as a network monitoring server) communicates with SNMP agents installed on network devices. Agents send traps and inform messages, which are unsolicited status alerts indicating events such as device failures, high CPU usage, or link outages.
The manager can also poll agents to retrieve performance metrics and configuration details stored in the Management Information Base (MIB).
SSH (Option A) is used for secure remote administration. DHCP (Option B) dynamically assigns IP addresses. NTP (Option C) synchronizes time between devices. None of these protocols are designed for network status monitoring and alert messaging.
Therefore, SNMP is the correct protocol for sending networking status messages between devices and management systems.
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