What is the difference between Hadoop and HDFS?

Related questions

1. Is Scala required for spark?
2. Is Hdfs a database?
3. Is Hadoop only for big data?
4. What is the HDFS?
5. Why do we need Hdfs?
6. What is Hdfs spark?
7. Is Hdfs a part of Hadoop?
8. Does spark need Hdfs?
9. How is data stored in HDFS?
10. Why is spark fast?

Tags

1. #table
2. #system
3. #database
4. #massive
5. #amount
6. #network
7. #manner
8. #across
9. #distributed
10. #nodes
11. #hbase
12. #stores
13. #different
14. #whereas
15. #columns
16. #hadoop
17. #stored
18. #store
19. #difference