Channel: CBT Nuggets

Category: Education

Description: Start learning cybersecurity with CBT Nuggets. courses.cbt.gg/security In this video, CBT Nuggets trainer Lalo Nunez covers using provisional response acknowledgements (or PRACKs) to confirm 100-level responses. From texting to talking to emails and — really — anything else, communication is definitionally a cycle of sending a message and that message being received. When technology gets involved, those messages and receipts are governed by protocols so that users and devices know which messages were received by whom. Lalo covers the special SIP requests called PRACKs. PRACKs are used to confirm the receipt of provisional 100-level responses. Watch along and learn how Cisco's Unified Communication Manager (CUCM) interacts with SIP invites and PRACKs to make phone calls work. Watch this entire course: rb.gy/8jfemq 🌐 Download the Free Ultimate Networking Cert Guide: blog.cbt.gg/t52i ⬇️ 13-Week Study Plan: CCNA (200-301): blog.cbt.gg/dju6 Start learning with CBT Nuggets: • Describe Network Switch Functions and How to Locate Network Devices | courses.cbt.gg/8s0