I found this article that it have some information for your on APIC:
No. I am not quite sure where the "APICv" name comes from (not Intel) but I assume you're talking to the additional APIC virtualization features added in the Haswell architecture (APIC register virtualization, posted interrupts). The catch is that only Xeon CPUs have this. So the it's of absolutely no use to the vast majority of VirtualBox users.. Whereas if you are looking forward to building up your career in IT Field, you need to have a good Cisco Certification.