Which two are Data ONTAP commands for displaying performance information? (Choose two.)

nfsstat is a built-in Data ONTAP filer command that displays NFS operation statistics such as calls per second, retransmissions, and per-procedure breakdowns, making it a direct performance diagnostic tool.

perfstat is a separate NetApp data collection utility typically executed from a client or support context to gather diagnostic bundles - it is not a standard interactive filer CLI command for displaying live performance.

sio_ntap_soll is not a valid Data ONTAP command - it does not exist in the Data ONTAP CLI for performance monitoring or any other purpose.

sysstat is a built-in Data ONTAP command that reports real-time system performance data including CPU utilization, disk throughput, cache hit rates, and network I/O at configurable intervals.