Explanation:
Box 1: data package
Data package - A single compressed file that contains a data project manifest and data files. This is generated from a data job and used for import or export of multiple files with the manifest.
Note: A data package for a Dynamics 365 Finance and Operations app can consist of one or many data entities. A typical data package consists of a group of entities for a specific task, process, or function. For example, the data entities that are required for general ledger setup might be part of one data package. The format of a data package is a compressed file that contains a package manifest, a package header, and any additional files for the data entities that are included.
Box 2: data job
Data job - A job that contains an execution instance of the data project, uploaded files, schedule (recurrence), and processing options.
Reference:
https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/lcs-solutions/process-data-packages-lcs-so
https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/data-entities/data-entities-data-packages