What is the purpose of a "Hello" packet? a. It is used to partition a large network into smaller networks. b. Verifies that the link between two routers is active and the routers are communicating. c....

What is the purpose of a "Hello" packet?

a. It is used to partition a large network into smaller networks.

b. Verifies that the link between two routers is active and the routers are communicating.

c. This enables variable-length subnet masking.

d. Assigned to a protoc01 or route to declare its reliability.