Single entry and multiple entry visas are the two types of visitor visas available in Canada. A single-entry visa allows visitors from other countries to visit Canada only once. A multiple passage visa allows its holder to enter and exit Canada as often as they like as long as the visa is valid. You are not required to choose which kind to apply for; as a result, candidates are evaluated for a variety of passage visas and are only granted single entrance visas under unique conditions.
Multiple entry visitor visas allow the holder to visit Canada for up to six months at a time, as many times as they need, as long as the visa remains valid. They can be valid for up to ten years, but the particular validity period is at the discretion of the visa official who issues it. If you have some other status records, such as an examination grant or a work grant, and you are not otherwise visa-exempt, you will be granted a visiting visa, allowing you to enter Canada to receive your award. This is usually a multiple entry visitor visa.