Q.1
Zookeeper essentially mirrors the _______ functionality exposed in the Linux kernel.
  • a) iread
  • b) inotify
  • c) iwrite
  • d) icount
Q.2
Point out the correct statement.
  • a) If we are to deploy Zookeeper in a distributed environment, we have to think about both the availability and scalability of the service
  • b) Chubby and Hbase are both much more than a distributed lock service
  • c) Given a cluster of Zookeeper servers, many can act as leader
  • d) None of the mentioned
Q.3
A ___________ server is a machine that keeps a copy of the state of the entire system and persists this information in local log files.
  • a) Master
  • b) Region
  • c) Zookeeper
  • d) All of the mentioned
Q.4
ZooKeeper’s architecture supports high ____________ through redundant services.
  • a) flexibility
  • b) scalability
  • c) availability
  • d) interactivity
Q.5
Point out the wrong statement.
  • a) Cluster-wide status centralization service is essential for management and serialization tasks across a large distributed set of servers
  • b) Within ZooKeeper, an application can create what is called a znode
  • c) The znode can be updated by any node in the cluster, and any node in the cluster can register to be informed of changes to that znode
  • d) None of the mentioned
Q.6
_________ serves distributed Lucene indexes in a grid environment.
  • a) Katta
  • b) Helprace
  • c) Neo4j
  • d) 101tec
Q.7
The Email & Apps team of ___________ uses ZooKeeper to coordinate sharding and responsibility changes in a distributed email client.
  • a) Katta
  • b) Helprace
  • c) Rackspace
  • d) None of the mentioned
Q.8
ZooKeeper is used for configuration, leader election in Cloud edition of ______________
  • a) Solr
  • b) Solur
  • c) Solar101
  • d) All of the mentioned
Q.9
Helprace is using ZooKeeper on a _______ cluster in conjunction with Hadoop and HBase.
  • a) 3-node
  • b) 4-node
  • c) 5-node
  • d) 6-node
Q.10
The ZooKeeper Data Directory contains files which are _________ copy of the znodes stored by a particular serving ensemble.
  • a) transient
  • b) read only
  • c) persistent
  • d) none of the mentioned
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