CompTIA Network+ Practice Test

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What type of information does the command 'show power' provide?

MAC address details
VLAN configuration
Power supply status and usage
Network latency statistics

The correct answer is: Power supply status and usage

The command 'show power' is specifically used to display crucial information regarding the power supply status and usage of network devices, such as routers or switches. This command provides insights into how much power is being consumed, the status of the power supplies, and whether they are functioning optimally or if there are any issues. This information is vital for network administrators to manage power resources effectively and ensure the reliability of the network infrastructure. Understanding the power supply status helps in planning for redundancy and capacity, especially in environments that rely on powered devices like IP phones or wireless access points. By monitoring power usage, administrators can also prevent potential outages or performance degradation due to power-related issues.