Question

a web page requires a user to enter a valid us zip code. us zipcodes are five digits. one test case calls for entering an incorrect zip code. for this test case, a sample zip code would be 63701 23bdc

Explanation:

US zip codes are five - digit numbers. 63701 is a five - digit number, so it is a valid zip code. 23BDC contains letters (B and D), so it is not a valid five - digit number zip code. Since the test case requires an incorrect zip code, 23BDC is the sample.

Answer:

23BDC