Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What is the difference between hbase and hdfs?

171

Compare rdbms with hbase?

146

What is regionserver?

179

Define ttl in hbase?

164

In hbase what is column families?

174

What is decorating filters?

301

What is use of tools command?

194

Explain about hlog and wal in hbase.

305

Compare hbase & cassandra?

160

Define standalone mode in hbase?

140

Explain how does hbase actually delete a row?

166

What is the reason of using hbase?

187

Which command is used to run hbase shell?

174

Define the difference between hive and hbase?

170

Which one would you recommend for hbase table design approach – tall-narrow or flat wide?

329

Un-Answered Questions { Big Data }

How do I start a spark cluster?

302

Why is the spark so fast?

309

Explain different transformation on DStream?

284

What is the use of shutdown command?

210

How will you perform the inter cluster data copying work in hdfs?

What are different hdfs dfs shell commands to perform copy operation?

1062

In which scenario Pig is better fit than MapReduce?

835

What are Flume core components?

Explain SparkContext in Apache Spark?

331

What is a TaskInstance?

671

Comparison between Secondary NameNode and Checkpoint Node in Hadoop?

506

what is Memtable in Cassandra?

109

why should we use 'group' keyword in pig scripts?

562

Explain how can you check whether namenode is working beside using the jps command?

435

What are the features of kafka?

544

For More Un-Answered { Big Data } Questions Click Here