Muhammad Saqlain Khan completed the CCNA Routing and Switching: Connecting Networks course through the Cisco Networking Academy. As verified by instructor Muhammad Aamir, Khan demonstrated proficiency in understanding, configuring, and troubleshooting WAN technologies including tunneling, NAT, serial and broadband connections, and monitoring network operations using syslog, SNMP and NetFlow. He also understood network architectures and the operations and benefits of VPNs.