*Question G8C09:
Which is true of mesh network microwave nodes?*  

*Correct Answer is  B: If one node fails, a packet may still reach its target station via an alternate node*  

### AI Response: (may contain errors)  

Mesh networks are designed to be robust and flexible, which is why they are often used in microwave communication systems. Let's break down the choices:

1. **Correct Answer: B**  
   - **Explanation**: In a mesh network, each node is connected to multiple other nodes. This redundancy means that if one node fails, the network can reroute the data through alternate paths to reach the target station. This is a key feature of mesh networks, enhancing their reliability and fault tolerance.

2. **Why the other choices are incorrect**:
   - **Choice A**: "Having more nodes increases signal strengths"  
     - This is incorrect because simply adding more nodes does not inherently increase signal strength. Signal strength is determined by factors like transmitter power and antenna gain, not the number of nodes.
   
   - **Choice C**: "Links between two nodes in a network may have different frequencies and bandwidths"  
     - While it is possible for links to operate on different frequencies and bandwidths, this statement does not specifically describe a unique feature of mesh networks. It is more about network configuration rather than a defining characteristic.
   
   - **Choice D**: "More nodes reduce overall microwave out of band interference"  
     - This is incorrect because adding more nodes does not necessarily reduce out-of-band interference. Interference is typically managed through frequency planning and filtering, not by the number of nodes.

In summary, the key feature of mesh networks is their ability to maintain communication even if some nodes fail, which is why choice B is the correct answer.