Asynchronous e-learning is the most common type of e-learning, it refers to groups of students from different locations studying independently, accessing the course materials recorded by themselves, without there being direct contact between them in live sessions.
Asynchronous e-learning gives students more flexibility, therefore it is the type of e-learning preferred by students who need self-learning due to the lack of flexible schedules, such as university students and employees who want to study while balancing study and other obligations, and therefore they can learn without adhering to specific time periods with other students.

Vocational education is education that prepares students to work in a profession, a particular craft, or as a specialized technician, and may sometimes be known as vocational training.
Vocational education is not limited to a specific field, but it branches into a large number of sectors and specialties such as crafts such as carpentry, printing and construction, in addition to many specialized fields such as design and engineering, accounting, nursing, some medical specialties, architecture, or law, without losing sight of the many craft professions that vocational education focuses on such as jewelry design and manufacturing, or metalwork based on various metals such as silver and copper.
You can enter vocational education at the secondary or post-secondary level, or during Higher Education.