About the engineer Zend test

Im interested in taking the Zend PHP engineer test. I want to know which book is advisable to study from. Please dont sugest me the study guide offered by Zend because I already have it. What I want to know is which PHP 7 book is advisable? Also I would like to know if someone know some site where I can take simulations of the test (besides this one: http://www.zendexam.com) Someone that already took the test and want to share his/her experience about job opportunities after getting the title also will be interesting.

Thank you