Share: Title:What is a Firewall? (short) Duration: 1:00 Plays: 243K views Published: 1 year ago Download MP3 Download MP4 Simillar Videos ▶️ 5:35 Data Packets - How Does The Internet Send Data? 243K views • 12 days ago ▶️ 6:21 Internet Bandwidth (speed) Explained 243K views • 1 month ago ▶️ 7:13 How Email Works 243K views • 3 months ago