Exam N10-008 topic 1 question 677 discussion

A. Multipathing Multipathing is the technology most likely used to prevent the loss of connection between a virtual server and network storage devices. It provides multiple physical pathways between the server and the storage infrastructure, ensuring that if one path fails, another can take over, maintaining the connection and preventing data access disruptions. This is especially important in environments relying heavily on virtual servers and network storage, where continuous access to data is critical.

Keywords: loss of connection

From VMWare https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-DD2FFAA7-796E-414C-84CE-1FCC14474D5B.html "To maintain a constant connection between a host and its storage, ESXi supports multipathing. With multipathing, you can use more than one physical path that transfers data between the host and an external storage device. If a failure of any element in the SAN network, such as an adapter, switch, or cable, occurs, ESXi can switch to another viable physical path. This process of path switching to avoid failed components is known as path failover. In addition to path failover, multipathing provides load balancing. Load balancing is the process of distributing I/O loads across multiple physical paths. Load balancing reduces or removes potential bottlenecks."

The Virtual Router Redundancy Protocol (VRRP) is a computer networking protocol that provides for automatic assignment of available Internet Protocol (IP) routers to participating hosts. This increases the availability and reliability of routing paths via automatic default gateway selections on an IP subnetwork. The protocol achieves this by the creation of virtual routers, which are an abstract representation of multiple routers, i.e. primary/active and secondary/Standby routers, acting as a group. The virtual router is assigned to act as a default gateway of participating hosts, instead of a physical router. If the physical router that is routing packets on behalf of the virtual router fails, another physical router is selected to automatically replace it. The physical router that is forwarding packets at any given time is called the primary/active router Its VRRP