CertExams.com released practice tests for CompTIA Server+ exam. The practice tests conform to the latest exam objectives and will have 300+ questions with answers and flash card explanations.
There have been a few changes between the old and new Sever+ exam objectives. Most importantly, some old topics have been removed. The removed topics include a few on SCSI interface, IDE/EIDE, Hierarchical Storage Management, RAID 3, 5, 0+1, EPROM, IRQ conflicts, RISC/CISC processors, DLT/DAT, etc. Some of the topics included are hypervisors, cloud topics, etc.
Check out the practice tests here:
http://www.certexams.com/comptia/server+/online-exam-details.htm
You may be interested in other exam simulators:
A+ Essentials 220-901, A+ Practical 220-902, Network+, and Security+ practice exams.