19. which network topology is a combination of two or more types of physical or two or more types of logical topologies? a. point-to-multipoint b. hybrid c. bus d. star

b)-Hybrid topology

Explanation:

Hybrid is a type of topology which uses different types of topology. Hybrid topology uses the mix of ring, bus, mesh, star and tree topology. This topology is reliable as troubleshooting is easy without affecting other networks. Also, more network can be easily added to it without causing much interference.

The major disadvantage of hybrid topology is its complexity.

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