Is cloud technology necessary for interns or junior positions?

I am a 3rd-grade computer engineering student with knowledge of Java and backend technologies such as Hibernate, Redis, and MySQL. When I look at job applications, I often notice that cloud technologies are required, which I am currently unfamiliar with. While I have experience with Docker, I haven't used Kubernetes, AWS, or GCP. I find it challenging to learn these technologies solely through videos or self-study. Could this be a reason why I am not getting selected for interviews?

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