For multiprocessor system, interconnection network-cross bar switch is an example of:

Correct option is A

A crossbar switch allows simultaneous connections without blocking data transfer between processors or memory modules.
Step-by-Step Solution:
1. Define interconnection networks: Crossbar switches connect multiple inputs and outputs.
2. Non-blocking property: Parallel transfers are possible without interference.
3. Applications: Used in high-performance systems.
Information Booster:
1. Non-blocking network permits parallel communication.
2. Crossbar switches have connections.
3. Scalability is a challenge due to high cost.
4. Blocking networks force sequential connections.
Additional Knowledge:
· Blocking network uses shared pathways.
· Connection-to-connection varies in static setups.
· Recurrent network introduces cyclic dependencies.