Although passing the CCENT (ICND) exam is not easy, it is the starting point for more advanced Cisco certifications, such as the CCNA. When you log in to the online certification tracking tool (use the exam report to do this), be sure to view the certification progress link. This link provides specific information about certifications you can achieve with your CCENT as the base.
The two Cisco associate-level certifications are the Cisco Certified Network Associate (CCNA) and the Cisco Certified Design Associate (CCDA). Both of these certifications require you to pass an additional exam, but with a CCENT under your belt, continued network study and testing should feel more familiar.