Q.1
_________ is a Cassandra feature that optimizes the cluster consistency process.
  • a) Hinted handon
  • b) Hinted handoff
  • c) Tombstone
  • d) Hinted tomb
Q.2
Point out the correct statement.
  • a) Cassandra does not immediately remove data marked for deletion from disk
  • b) A deleted column can reappear if you do not run node repair routinely
  • c) The deletion of marked data occurs during compaction
  • d) All of the mentioned
Q.3
Cassandra searches the __________ to determine the approximate location on disk of the index entry.
  • a) partition record
  • b) partition summary
  • c) partition search
  • d) all of the mentioned
Q.4
You configure sample frequency by changing the ________ property in the table definition.
  • a) index_time
  • b) index_interval
  • c) index_secs
  • d) none of the mentioned
Q.5
Point out the wrong statement.
  • a) A hint indicates that a write needs to be replayed to one or more unavailable nodes
  • b) When the cluster cannot meet the consistency level specified by the client, Cassandra does store a hint
  • c) By default, hints are saved for three hours after a replica fails because if the replica is down longer than that, it is likely permanently dead
  • d) All of the mentioned
Q.6
The compression offset map grows to ____ GB per terabyte compressed.
  • a) 1-3
  • b) 10-16
  • c) 20-22
  • d) 0-1
Q.7
The type of __________ strategy Cassandra performs on your data is configurable and can significantly affect read performance.
  • a) compression
  • b) collection
  • c) compaction
  • d) decompression
Q.8
There are _________ types of read requests that a coordinator can send to a replica.
  • a) two
  • b) three
  • c) four
  • d) all of the mentioned
Q.9
_________ can be configured per table for non-QUORUM consistency levels.
  • a) Read repair
  • b) Read damage
  • c) Write repair
  • d) None of the mentioned
Q.10
If the table has been configured with the __________ property, the coordinator node for the read request will retry the request with another replica node.
  • a) rapid_retry
  • b) speculative_retry
  • c) speculative_rapid
  • d) none of the mentioned
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