Redundancy in a network makes it more fault-tolerant. What is the purpose of redundancy?

Redundancy in a network makes it more fault-tolerant. What is the purpose of redundancy?

• A. To reduce cost.
• B. To reduce network traffic.
• C. To increase fault tolerance by having multiple routes.
• D. To simplify security policies.

Answer: (C)

Redundancy is about keeping networks available by having backup paths and components ready to take over if something fails. The purpose is to increase fault tolerance by providing multiple routes for data to travel. When one link or route goes down, traffic can automatically switch to an alternative path, helping services stay online and reducing downtime. This idea is reinforced by using duplicate links, backup devices, and routing mechanisms that can quickly reroute traffic to a surviving path. Because of this focus on keeping systems up and running, redundancy isn’t primarily about cutting costs, reducing traffic, or simplifying security policies. The main benefit is higher availability through multiple routes that guard against single points of failure.

Redundancy is about keeping networks available by having backup paths and components ready to take over if something fails. The purpose is to increase fault tolerance by providing multiple routes for data to travel. When one link or route goes down, traffic can automatically switch to an alternative path, helping services stay online and reducing downtime. This idea is reinforced by using duplicate links, backup devices, and routing mechanisms that can quickly reroute traffic to a surviving path. Because of this focus on keeping systems up and running, redundancy isn’t primarily about cutting costs, reducing traffic, or simplifying security policies. The main benefit is higher availability through multiple routes that guard against single points of failure.