Explanation:NameNode servers as the master and each DataNode servers as a worker/slave 4. ________ NameNode is used when the Primary NameNode goes down.
A. Rack
B. Data
C. Secondary
D. None of the mentioned
Answer:A
Explanation:NameNode servers as the master and each DataNode servers as a worker/slave 4. ________ NameNode is used when the Primary NameNode goes down.
A. Rack B. Data C. Secondary D. None of the mentioned