Hadoop Set 2

getJobName() ✘ getUserJob() ✘ getName() ✘ All of these ✔

getJobName()

✘

getJobState()

✘

getPriority()

✘

getTaskCompletionEvents(int startFrom)

✔

Input -> Map -> Reduce -> Combine -> Shuffle and Sort -> Split -> Output

✘

Input -> Split -> Map -> Combine -> Shuffle and sort -> Reduce -> Output

✘

Input -> Split -> Combine -> Map -> Shuffle and sort -> Reduce -> Output

✘

Input -> Split -> Combine and sort -> Reduce -> Output

✔

HBase is not an ACID-compliant database ✘ HBase does not support a full relational model ✘ HBase provides clients with a simple data model ✘ All are correct ✔

50070 ✘ 50030 ✘ 50050 ✘ None of these ✔

DataNode and TaskTracker send heartbeat signals to NameNode only. ✘ DataNode and TaskTracker send heartbeat signals to NameNode and JobTracker respectively. ✘ DataNode and TaskTracker send heartbeat signals to JobTracker only. ✘ DataNode and TaskTracker send heartbeat signals to JobTracker and NameNode respectively. ✔

Hadoop Base ✘ Hadoop Streaming ✘ Hadoop Stream ✘ Stream ✔

Hash ✘ Partitioner ✘ HashPartitioner ✘ All of these ✔

Output directory name ✘ Mapper executable ✘ Input directory name ✘ All of these ✔

Clear ✘ Cut ✘ Paste ✘ Copy ✔