I'm not familiar with the average GPA and GMAT scores of students in the MBA program at San Jose State, but those would be good metrics to compare yourself to. Although quality of work experience is more important than quantity, most programs require a minimum of 2 years. All elements of your application are important, so you will likely need to explain your 2.7 GPA to give the adcom confidence that you can handle the academic workload.
Best of luck!
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