640-544 Books

mobri09mobri09 Users Awaiting Email Confirmation Posts: 723
Most people are posting books in regards to the old exam. What is the best book for 640-544. Is it the cert guide below?
Thank you

CCNA Security 640-554 Official Cert Guide (Official Certificate Guide): Keith Barker,Scott Morris: 9781587204463: Amazon.com: Books


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