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NSE4 · Question #499

Which commands are appropriate for investigating high CPU? (Choose two.)

The correct answer is A. diag sys top D. get system performance status. To investigate high CPU utilization on a FortiGate, the diag sys top command provides real-time process statistics, and get system performance status offers an overview of system resource usage.

Submitted by wei.xz· Apr 18, 2026Logging and Monitoring

Question

Which commands are appropriate for investigating high CPU? (Choose two.)

Options

  • Adiag sys top
  • Bdiag hardware sysinfo mem
  • Cdiag debug flow
  • Dget system performance status

How the community answered

(21 responses)
  • A
    90% (19)
  • B
    5% (1)
  • C
    5% (1)

Why each option

To investigate high CPU utilization on a FortiGate, the `diag sys top` command provides real-time process statistics, and `get system performance status` offers an overview of system resource usage.

Adiag sys topCorrect

The `diag sys top` command on a FortiGate displays processes consuming CPU and memory in real-time, similar to the `top` command in Unix/Linux, making it essential for identifying CPU hogs.

Bdiag hardware sysinfo mem

The `diag hardware sysinfo mem` command is used to display detailed memory information, not CPU usage.

Cdiag debug flow

The `diag debug flow` command is used for debugging packet flow through the FortiGate, which can be CPU-intensive itself and is not primarily for monitoring general CPU usage.

Dget system performance statusCorrect

The `get system performance status` command provides a snapshot of the FortiGate's overall system performance, including current CPU usage, memory usage, and session information, which helps in identifying high CPU situations.

Concept tested: FortiGate CPU troubleshooting commands

Source: https://docs.fortinet.com/document/fortigate/7.4.0/cli-reference/169138/diagnose-sys-top

Topics

#High CPU troubleshooting#Diagnostic commands#Performance monitoring#FortiGate CLI

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