Cloudera Apache Hadoop Administration Quiz Questions and Answers
Which of the following features is not provided by Impala?
Answer :
ACID
Explanation :
Impala combines all of the benefits of other Hadoop frameworks, including flexibility, scalability, and cost-effectiveness, with the performance, usability, and SQL functionality necessary for an enterprise-grade analytic database
Which is the most popular NoSQL database for scalable big data stores with Hadoop?
Answer :
HBase
Explanation :
HBase is the Hadoop database: a distributed, scalable Big Data store that lets you host very large tables — billions of rows multiplied by millions of columns — on clusters built with commodity hardware
Hive also support custom extensions written in ___________.
Answer :
Java
Explanation :
Hive also support custom extensions written in Java, including user-defined functions (UDFs) and serializer-deserializers for reading and optionally writing custom formats
___________ mode allows you to suppress alerts for a host, service, role, or even the entire cluster.
Answer :
Maintenance
Explanation :
Maintenance mode can be useful when you need to take actions in your cluster and do not want to see the alerts that will be generated due to those actions