| 1 | People gathered together in the public square. | |
| 2 | The cluster involves three brothers. | |
| 3 | A station that consists of a control unit(cluster controller) and the terminals attached to it. | |
| 4 | To mitigate that, Yahoo replicates data to multiple clusters, so an outage of one distributed file system can be compensated for by using a backup file system. |