Q.1
You need to have _________ installed before running ZooKeeper.
  • a) Java
  • b) C
  • c) C++
  • d) SQLGUI
Q.2
Point out the correct statement.
  • a) All znodes are ephemeral, which means they are describing a “temporary” state
  • b) /hbase/replication/state contains the list of RegionServers in the main cluster
  • c) Offline snapshots are coordinated by the Master using ZooKeeper to communicate with the RegionServers using a two-phase-commit-like transaction
  • d) None of the mentioned
Q.3
How many types of special znodes are present in Zookeeper?
  • a) 1
  • b) 2
  • c) 3
  • d) All of the mentioned
Q.4
To register a “watch” on a znode data, you need to use the _______ commands to access the current content or metadata.
  • a) stat
  • b) put
  • c) receive
  • d) gets
Q.5
Point out the wrong statement.
  • a) All the znodes are prefixed using the default /hbase location
  • b) ZooKeeper provides an interactive shell that allows you to explore the ZooKeeper state
  • c) The znodes that you’ll most often see are the ones that coordinate operations like Region Assignment
  • d) All of the mentioned
Q.6
_______ has a design policy of using ZooKeeper only for transient data.
  • a) Hive
  • b) Imphala
  • c) Hbase
  • d) Oozie
Q.7
Zookeeper keep track of the cluster state such as the ______ table location.
  • a) DOMAIN
  • b) NODE
  • c) ROOT
  • d) All of the mentioned
Q.8
The ________ master will register its own address in this znode at startup, making this znode the source of truth for identifying which server is the Master.
  • a) active
  • b) passive
  • c) region
  • d) all of the mentioned
Q.9
___________ is used to decommission more than one RegionServer at a time by creating sub-znodes.
  • a) /hbase/master
  • b) /hbase/draining
  • c) /hbase/passive
  • d) None of the mentioned
Q.10
The ______ znode is used for synchronizing the changes made to the _acl_ table by the grant/revoke commands.
  • a) zcl
  • b) acl
  • c) scl
  • d) bnl
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