The basic or fundamental knowledge required to study or work in a field; introductory-level knowledge.
プログラミングの基礎知識があれば、独学で学びやすい。
If you have basic programming knowledge, it's easier to self-study.
面接ではその職種の基礎知識を問われることが多い。
In interviews, you're often asked about the basic knowledge for that job.
高校の数学は物理を学ぶための基礎知識になる。
High school mathematics provides the basic knowledge needed to study physics.