CCNA Security 640 554 Exam Prep PROKey Features of this APP: • At practice mode you can see the explanation describing the correct answer.• Real exam style full mock exam with timed interface• Ability to create own quick mock by choosing the number of MCQ’s.• You can create your profile and see your result history with just one click.• This app contains large number of question set that covers all syllabus area.Cisco Certified Network Associate Security (CCNA Security) validates associate-level knowledge and skills required to secure Cisco networks. With a CCNA Security certification, a network professional demonstrates the skills required to develop a security infrastructure, recognise threats and vulnerabilities to networks, and mitigate security threats. The CCNA Security curriculum emphasises core security technologies, the installation, troubleshooting and monitoring of network devices to maintain integrity, confidentiality and availability of data and devices, and competency in the technologies that Cisco uses in its security structure.