Why we don’t use 2-20mA, 1-20mA, 3-20mA or 10-50mA signal instead of 4-20mA ?
Answer : Generally, in a transistor some amount of voltage is required for turning it on…
Browsing Tag
Yash Technologies interview questions and answers
53 posts
How to calculate the flow rate in Vortex flow meter ? What is K factor ? Can you give me an example calculation to understand the same as better ?
Answer : Vortex flow meters are flow sensors that detect the frequency of vortices…
How to optimize Hive Performance ?
Answer : Tez-Execution Engine in Hive – Tez is a new application….
What is the difference between ‘select from table’ and ‘select column from table’ in hive ?
Answer : Table in Hive is stored as a directory in the HDFS…
What is the difference between hive view and a hive external table When should it be used ?
Answer : When the user queries table x the query planner….
What is the Difference between apache hive and impala ?
Answer : Hive generates query expressions at compile
time…
What is the difference between Apache Hive and Apache Spark ?
Answer : Apache hive is a distributed query…
What is the difference between a normal hive table and hive table stored as ORC ?
Answer : Hive data is organized into Databases….
What is a difference between terradata SQL and Hive QL ?
Answer : Sql is a database however hive is not a database
What is the Relationship Between Hadoop Hbase and Hive ?
Answer : Hadoop is an open source software stack that runs on a cluster of machines
What is the location where “Hive” stores table data ?
Answer : The default location of the hive table is….
What is the best way to take the back up of hive partitioned table into a disk ?
Answer : Partitioning is the optimization technique in Hive which improves the performance significantly.
What is the best studio software/tool to run HIVE SQL/HQL queries by a data analyst ?
Answer : Hue has a Web SQL Editor with autocomplete, display of table/data samples, light graphing, query download
What is best practice indexing hdfs data into solr using hive ?
Answer : Here,based on the requirement especially how typically your data gets updated, volume and architecture.
What is the result of clustering a partitioned table in Hive ?
Answer : Partitioning data is used for distributing load horizontally, helps to organizing data in a very logical fashion.
What is the version control tool for hive queries ?
Answer : Functionality to write & run multiple queries concurrently for the same user in the same session it used Hive, Impala
What is a tool for tuning hive queries ?
Answer : By doing compression at various phases (i.e. on final output, intermediate data),we achieve performance improvement in Hive Queries.
What is a map join and a bucket join in Hive ?
Answer : Map join may be a little-known feature of Hive.
