CCNA Study QuestionsAll of the digital flash cards in this section are from the text you see in the image above. The title of that text is "CCENT/ CCNA ICND 1 Official Certification Guide" and it was authored by Wendell Odem, CCIE No. 1624. To reap the greatest benefit from these flash cards it is highly recommended that you acquire and read the text. These digital flash cards will solidify the concepts you read in the text so that you can easily recall the information you need when you decide to attempt your CCNA exam.