CompTIA Cloud+ Practice Test

Which of the following would increase availability from a virtualization host to a storage device?

1. Trunking

2. Multipathing

3. Link aggregation

4. VLANs

The correct answer is: Multipathing

Increasing availability from a virtualization host to a storage device is crucial for maintaining a seamless operation in a virtualized environment. Multipathing is the correct choice because it enables multiple physical paths between the virtualization host and storage devices. This redundancy ensures that if one path (connection) fails, the system can continue to operate through another path, thereby preventing downtime and enhancing overall availability. Multipathing technology is commonly used in Storage Area Networks (SAN) and helps load-balance the traffic as well, which can optimize performance while maintaining high availability. By implementing multipathing, organizations can ensure that their data remains accessible at all times, even during hardware failures or maintenance periods. Other options, while related to network configurations and data flow, do not inherently address the redundancy between a virtualization host and storage. Trunking, for example, refers to combining multiple network connections for increased bandwidth but does not provide alternate routes in case of failure. Link aggregation also combines multiple network interfaces into a single logical interface for bandwidth improvement and load balancing but lacks the failover capability specifically targeted at storage device connections. VLANs (Virtual Local Area Networks) are used to segment network traffic logically and enhance security but do not contribute to path redundancy for storage access.