Purchase a CCNA practice exam and study guide. These can be found online at the Cisco site's learning network center. This site also offers free online self-assessments.
Find out more about the exam. Learning about the format, length and types of questions you will be asked (i.e., multiple choice, open response, essay) will help you know what to expect on test day.
Assess your current knowledge of the skills and information tested on the exam by taking a practice test. Analyze the results of your practice exam to determine your weak areas.
Use your CCNA exam study guide strategically to target the weaknesses identified by the practice exam. Identify portions of the study guide that will most likely increase your score. Focusing on these specific sections will help you make the most of your study time.
Make a schedule. Devote a few hours per day over the course of a few weeks to studying the material. Cramming for long periods a few days before the test will most likely result in burnout. It's best to pace yourself and give your brain time to process the information.
Get a good night's rest the night before the exam, and arrive at the testing center early to alleviate stress and mentally prepare yourself for the test.