The Cisco 100-101 exam, also known as the Interconnecting Cisco Networking Devices Part 1 (ICND1), is designed for candidates seeking the Cisco Certified Entry Networking Technician (CCENT) certification and covers key networking topics such as IP data networks, LAN switching, and troubleshooting. It includes a 1.5-hour test comprising 50-60 questions, and candidates can prepare through relevant study courses and guides available online. Pass4Sure offers study aides and a practice test engine that guarantees a 100% pass rate for the 100-101 exam.