Which block size does Isilon SyncIQ use to transfer data? 06/02/2017 – by Mod_GuideK 0 Which block size does Isilon SyncIQ use to transfer data? A. 2 KB B. 4 KB C. 6 KB D. 8 KB SHOW ANSWERSCorrect Answer: D Explanation/Reference: Download Printable PDF. VALID exam to help you PASS.