CronJob-clarify on the spec fields

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In cron job we have 3 specs(specifications)
1st Spec for cron job
2nd Spec for job
3rd Spec for pod

below fields will be part of which part of the specification and why? can someone guide me clarifying this point
completions:
parllelism:
backOffLimit:
activeDeadlineSeconds
successfulJobsHistoryLimit:
failedJobsHistoryLimit:

Cluster information:

Kubernetes version:V1.26
Cloud being used: (put bare-metal if not on a public cloud): killershell