When a client contacts the namenode for accessing a file, the namenode responds with
A)size of the file requested
B)block id and hostname of all the data nodes containing that block
C)block id of the file requested
D)all of the above

Question

Quizplus · Accepted Answer

The Namenode responds with the block ID and hostname of all the data nodes containing that block, enabling the client to directly access the file blocks from the respective DataNodes.

When a Client Contacts the Namenode for Accessing a File