The current version of Comptia Security+ Exam SY0-501 is retiring by 31st July 2021 as per the Comptia website. The new exam would be SY0-601 which has a few changes with respect to syllabus. A few obsolete topics had been removed from the new exam and some new topics have been introduced. Those preparing for the current exam objectives need to pass the exam by 31 July 2021 if they want to achieve the certification using current exam objectives (SY0-501) Please check out the practice tests for Comptia Security+ at
Exam cram is also available for the exam, check out https://www.simulationexams.com/cram-notes/securityplus-cram-notes.htm
Other tests you may be interested include Comptia A+ Labsim and Cisco CCNA Netsim.