CCB-400Cloudera Certified Specialist in Apache HBase
45 Questions and Answers Experienced specialists selected 45 questions for this exam. All answers are verified to ensure correctness.
Last Updated Apr 27, 2024 Ace your exams with our consistently updated CCB-400 exam dumps.
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CCB-400 Online Practice Questions and Answers
Your client is writing to a region when the RegionServer crashes. At what point in the write is your data secure?
A. From the moment the RegionServer wrote to the WAL (write-ahead log)
B. From the moment the RegionServer returned the call
C. From the moment the RegionServer received the call
D. From the moment the RegionServer wrote to the MemStore
Your client application connects to HBase for the first time to perform a write. Which of the following sequences will it traverse to find the region serving the row range of interest?
A. ZooKeeper -> RegionServer -> Region
B. ZooKeeper ->.META. -> RegionServer -> Region
C. ZooKeeper-> ROOT->.META. -> RegionServer -> Region
D. ZooKeeper -> HMaster->-ROOT-->.META. -> RegionServer -> Region
You need to insert a cell with a specific timestamp (version) 13353903160532. Which of the following is true?
A. The timestamp for the entire row must be updatedto13353903160532
B. ThePutclass allows setting a cell specific timestamp
C. ThePutclass allows setting a column family-specific timestamp
D. TheHTableclass allows you to temporarily roll back the newer versions of the cell
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