Hi All, I attended Big data exam and wanted to clear my few doubts as I am unable to find right answers over the internet. Can you please help me in getting my doubts cleared . I am posting my questions below:
1. Is YARN High Availability automatic failover taken care by ZooKeeper? 2. Does the namenode stores block location in Edit Logs? 3. Restarting failed task does not require communication with nodes working on other portions of data. (True/False) 4.On a cluster running in pseudo-distributed mode ,map and reduce tasks run in same JVM(True/False). 5. HADOOP_CLASSPATH ia a client side setting and only sets the classpath for the MapReduce driver in JVM.(True/False) 6.Can distributed cache be used even if the file distributed does not fit in memory. 7. Are the files in Distributed cache automatically deleted from slaves node when the job finishes? 8.Where is hive installed in Production Hadoop cluster? It would be great if you can help me out here with these questions. Regards, Harshita Vishwakarma. Regards, Harshita.
