Question

Executing the same test case on a modified build called as

Answer 1

Executing the same test case on a modified build is known as RETESTING.
 
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Answer 2

Answer:

Executing the same test case on a modified build called as Regression testing.

Explanation:

Regression testing is a sort of testing that is used to ensure that a software change does not affect the product's existing functioning. To check the impact of the change, previously executed test cases are re-executed. Regression Testing is a sort of Software Testing in which test cases are re-run to see if the application's previous functionality is still functional and whether the new changes have introduced any new defects. Executing the same test case on a modified build called as regression testing.