Which is the default port number for Database Express? 05/21/2017 – by Mod_GuideK 0 Which is the default port number for Database Express? A. 7801 B. 5500 C. 2243 D. 1521 E. 22 SHOW ANSWERSCorrect Answer: D Explanation/Reference: Reference: http://docs.oracle.com/cd/B25329_01/doc/install.102/b25143.pdf (page 4, first bulleted point) Download Printable PDF. VALID exam to help you PASS.