Which is true of mesh network microwave nodes?
The correct answer is B: If one node fails, a packet may still reach its target station via an alternate node. What is true of mesh network microwave nodes is that if one node fails, a packet may still reach its target station via an alternate node. Mesh networks have multiple paths, providing redundancy. For amateur radio operators, this is a key mesh network advantage. Understanding this helps when using mesh networks.
Exam Tip
Mesh network truth = if one node fails, packet may reach target via alternate node. Think 'M'esh = 'M'ultiple paths = 'M'ore 'R'eliability. Mesh networks have multiple paths, providing redundancy. Not signal strength increase, not different frequencies, not interference reduction - just alternate path redundancy.
Memory Aid
"Mesh network truth = if one node fails, packet may reach target via alternate node. Think 'M'esh = 'M'ultiple paths. Mesh networks have multiple paths, providing redundancy. Key mesh network advantage."
Real-World Application
A mesh network: Node A wants to send to Node D. If the direct path (A→B→D) fails because Node B fails, the packet can take an alternate path (A→C→D). Mesh networks have multiple paths, so if one node fails, packets can still reach their destination via alternate routes. This is a key mesh network advantage - redundancy.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. More nodes don't increase signal strengths - signal strength depends on path and power, not number of nodes. More nodes don't strengthen signals.
Option C: Incorrect. Links between nodes don't have different frequencies and bandwidths in standard mesh - they typically use the same frequency/bandwidth. Different frequencies aren't standard.
Option D: Incorrect. More nodes don't reduce microwave out-of-band interference - interference depends on filtering and operation, not node count. Node count doesn't reduce interference.
题目解析
The correct answer is B: If one node fails, a packet may still reach its target station via an alternate node. What is true of mesh network microwave nodes is that if one node fails, a packet may still reach its target station via an alternate node. Mesh networks have multiple paths, providing redundancy. For amateur radio operators, this is a key mesh network advantage. Understanding this helps when using mesh networks.
考试技巧
Mesh network truth = if one node fails, packet may reach target via alternate node. Think 'M'esh = 'M'ultiple paths = 'M'ore 'R'eliability. Mesh networks have multiple paths, providing redundancy. Not signal strength increase, not different frequencies, not interference reduction - just alternate path redundancy.
记忆口诀
Mesh network truth = if one node fails, packet may reach target via alternate node. Think 'M'esh = 'M'ultiple paths. Mesh networks have multiple paths, providing redundancy. Key mesh network advantage.
实际应用示例
A mesh network: Node A wants to send to Node D. If the direct path (A→B→D) fails because Node B fails, the packet can take an alternate path (A→C→D). Mesh networks have multiple paths, so if one node fails, packets can still reach their destination via alternate routes. This is a key mesh network advantage - redundancy.
错误选项分析
Option A: Incorrect. More nodes don't increase signal strengths - signal strength depends on path and power, not number of nodes. More nodes don't strengthen signals. Option C: Incorrect. Links between nodes don't have different frequencies and bandwidths in standard mesh - they typically use the same frequency/bandwidth. Different frequencies aren't standard. Option D: Incorrect. More nodes don't reduce microwave out-of-band interference - interference depends on filtering and operation, not node count. Node count doesn't reduce interference.
知识点
Mesh network, Microwave nodes, Node failure, Alternate path
Verified Content
Question from official FCC General Class question pool. Explanation reviewed by licensed amateur radio operators.