Is the study time for Java Silver SE17 enough during job hunting? 10.5 hours just for practice exams

Oracle has not provided an official estimate for the study time required for Java Silver SE17.Therefore, I calculated it ...
InfoWorld

Oracle ups the price for Java, Solaris certifications

Later this year, Oracle will begin requiring people interested in gaining Java and Solaris certifications to attend “hands-on” training courses, at an additional cost of thousands of dollars. The new ...