Describe redundancy and high availability in networks and name at least two standard methods or devices used to achieve it.

• A. Redundancy doubles bandwidth by adding more cables.
• B. Redundancy provides alternate paths and devices; high availability aims for minimal downtime; common methods include HSRP and VRRP for router failover; STP and link aggregation also help.
• C. High availability means servers are always on the same hardware.
• D. Redundancy only applies to storage.

Answer: (B)