# Assessment 9

#### What can a node do when it realizes it has missed a block?

* [x] Quickly validate the headers and request any missing information.
* [ ] Ignore the missed block.
* [ ] Restart the entire network.
* [ ] Send a complaint to the network administrator.

**Notes to Learners**

When a new block is announced that builds upon the missed block, the node can quickly validate the headers and request any missing information.


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