Version 4.1 - 6.0 Cisco Security Technologies and Solutions 16%
This section and the one before it covers 34% of the exam. There will be about 16 - 18 questions on the 6.x material. If you compare the amount of topics to 5.x, you will see there are fewer topics. So I'm taking that as an indication that the questions may explore these topics deeper. Unfortunately, the topic headers are a bit more vague. So I would seek to find and know these topics deeply.