hiddenknight821 wrote: »
It depends on which exam are you looking forward to take since the 640-553 (the one with SDM) will be expired on September 30. The 640-554 just came out with the CCP (replaces the SDM) and ASA. The cost of the ASA device is one of the reasons why I decided to stick with the old version. I'm currently studying for it using Catherine Paquet as my only learning resource beside labbing. I plan to purchase the Boson ExSim-Max practice exams after I'm done reading.