How does a typical virus get inside a cell?

Hint: Virus is the smallest of all organisms and can penetrate inside cell easily because of their small size and penetration power by endocytosis and can form their replicas by taking nourishment and by DNA replication millions of copies can form in no time which can cause serious illness to the organism.

Complete answer:
Viruses are known as perfect parasites. They have been known for decades that once a virus gets inside a cell it hijacks the cellular processes that produce a virally encoded protein that will replicate the virus’s genetic material. Viral mechanisms have the capability of translocating proteins and genetic material from a cell and assemble into new virus particles. Contemporary research has been done that some sort of specific mechanisms viruses use to get inside cells and infect them.
An individual viral particle, called a virion, is way simpler than a bacterium. Often a question has been raised whether a virus is alive. It is not living in the everyday sense of the world. Virions generally consist of genetic material—like DNA or RNA enclosed in a protein coating.
Many viruses, called enveloped viruses, have an outer membrane besides that encloses the protein coat. Thus this membrane envelope is materially co-opted from the cell’s membrane. As the new virion comes out like a bud from an infected host cell, it is wrapped by the bilayer membrane of the cell and carries with it any protein that happens to be embedded in the membrane at the budding site.
Enveloped viruses are said to be free to begin a new cycle of infection by fusing their cell-derived envelope with the cellular membrane of another uninfected cell.

Note: Virus enters the cell by endocytosis. Inside of cytoplasm, the capsid comes apart, releasing the RNA genome. Replication and gene expression. The RNA genome gets copied (this would be done by a viral enzyme, not shown) and translated into viral proteins using a host ribosome.