Cloudera HBase Certification Questions and Answers (Dumps and Practice Questions)

Question : Only Column Families must be created at schema definition time

1. True
2. False


Correct Answer : 1






Question : Which of the following is the correct syntex for getting the

data from HBase table t1 and rowkey r1


1. get 't1', 'r1'
2. get 't1', 'r1', {COLUMN => 'fam1:c1'}
3. get 't1', 'r1', {COLUMN => 'fam1:c1', VERSIONS=> 2}
4. All of the above


Correct Answer : 4

get 'tablename', 'rowkey' [,options]
get 't1', 'r1'
get 't1', 'r1', {COLUMN => 'fam1:c1'}
get 't1', 'r1', {COLUMN => 'fam1:c1', VERSIONS=> 2}






Question : Which statement is wrong about HBase

1. Tables can have thousands of columns
2. It is not mendatory to have dat data in all the columns
3. It does not support transaction
4. All of the above
5. None of the above



Correct Answer : 3

Related Questions

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Question :

Which of the following statement is true about ROOT Catalog table

1. A table that lists all the regions and their locations
2. A table that lists the location of the .META. table(s)
3. Access Mostly Uused Products by 50000+ Subscribers
4. All of the above are correct


Question :

Select the correct role of the HMaster

1. Responsible for coordinating the slaves (HRegionServers)
2. Assigns regions, detects failures of HRegionServers
3. Access Mostly Uused Products by 50000+ Subscribers
4. All above are correct



Question :

Select the correct statement from the following statement

1. LoadBalancer Periodically reassigns Regions in the cluster
2. CatalogJanitor periodically checks and cleans up the .META. Table
3. Access Mostly Uused Products by 50000+ Subscribers
4. All 1,2 and 3 are correct
5. Only 1 and 2 are correct




Question : _____________ Serve data reads and writes of rows contained in Regions

1. Regions
2. HMaster
3. Access Mostly Uused Products by 50000+ Subscribers
4. ZooKeeper


Question :

Which of the following Data Methods are exposed by HRegionRegionInterface


1. Get
2. Put
3. Access Mostly Uused Products by 50000+ Subscribers
4. next
5. All of the above



Question :

__________ will split a Region that has become too large

1. Regions
2. HMaster
3. Access Mostly Uused Products by 50000+ Subscribers
4. ZooKeeper