Overprovisioning: Involves allocating more virtual resources (e.g., CPU, RAM, storage) to virtual machines than the total physical resources available on a hypervisor. The idea is for resources to be dynamically shared, assuming not all VMs will demand their maximum allocation simultaneously.
Direct Access: This usually refers to technologies like RDMA (Remote Direct Memory Access) that allow for very low-latency, direct access to the memory of another computer over a network.
Link Aggregation: The practice of combining multiple physical network links to create a single logical link with increased bandwidth.
Component Redundancy: Refers to having multiple hardware components (e.g., power supplies, hard drives) to provide fault tolerance.
Scalability: The ability of a system to adapt and handle increased workloads by adding resources.
Reference:
CompTIA Server+ Objectives (Exam codes SK0-004 or SK0-005): Review the sections on virtualization concepts.
Virtualization Technology Documentation: Refer to documentation for popular hypervisors like VMware vSphere, Microsoft Hyper-V, or open-source solutions.