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This set of MCQs helps students to learn about various Zoo Keeper, Sqoop and Cassandra which will help them to enhance their knowledge about computer science engineering.
Which of the guarantee is provided by Zookeeper?
When a _______ is triggered the client receives a packet saying that the znode has changed.
The underlying client-server protocol has changed in version _______ of ZooKeeper.
A ___________ server is a machine that keeps a copy of the state of the entire system and persists this information in local log files.
_________ serves distributed Lucene indexes in a grid environment.
The Email & Apps team of ___________ uses ZooKeeper to coordinate sharding and responsibility changes in a distributed email client.
Helprace is using ZooKeeper on a _______ cluster in conjunction with Hadoop and HBase.
ZooKeeper itself is intended to be replicated over a sets of hosts called ____________
ZooKeeper is especially fast in ___________ workloads.
Write
Read-dominant
Read-write
None of the mentioned
A number of constants used in the client ZooKeeper API were renamed in order to reduce ________ collision.
Value
Namespace
Counter
None of the mentioned
The java package structure has changed from com.yahoo.zookeeper* to ___________.
apache.zookeeper
org.apache.zookeeper
org.apache.zookeeper.package
All of the mentioned
Zookeeper essentially mirrors the _______ functionality exposed in the Linux kernel.
iread
inotify
iwrite
icount
ZooKeeper’s architecture supports high ____________ through redundant services.
Flexibility
Scalability
Availability
Interactivity
The ZooKeeper Data Directory contains files which are _________ copy of the znodes stored by a particular serving ensemble.
Transient
Read only
Persistent
None of the mentioned
ZooKeeper allows distributed processes to coordinate with each other through registers, known as ___________.
Znodes
Hnodes
Vnodes
Rnodes
