Are you in search of Apache Presto Jobs? Then you are at the right place. Presto is written in the Java programming language. A single Presto query can combine data from multiple sources. Presto offers connectors to data sources including files in Hadoop Distributed File System, Amazon S3, MySQL, Apache Kafka, Apache Cassandra, PostgreSQL and Redis. There are numerous leading companies that offer Jobs in various positions in apache presto few of them are Technical lead, Senior Software Engineer, Advance Data Manager, Senior Messaging UI engineer, Senior Programmer Writer, Software Development Manager, Senior Analytic Engineer, Senior Rails API Engineer, Senior Distributed System Engineer(Java) and many more. To know more about Apache Presto Interview Questions and to crack the interviews easily visit our website Wisdomsjob.com.
Answer :
Presto is a distributed SQL query engine. It is an open source software project to develop a database.
Question 2. What Are The Features Of Presto?
Answer :
There are following features of Presto:
Question 3. What Are The Presto Applications?
Answer :
There are various Presto applications:
Question 4. Why Should We Use Presto?
Answer :
We should use Presto because of its features:
Question 5. What Are The Components Of Presto Architecture?
Answer :
Presto architecture components are given below:
Question 6. What Are The Log Files Of The Presto Server?
Answer :
The logs files of the Presto server are given below:
Question 7. What Is Presto Verifier?
Answer :
Presto verifier is used to test Presto against another database (such as MySQL).
Question 8. What Is The Default Port Of Presto?
Answer :
The default port of Presto is 8080.
Question 9. What Are The Config Properties Of Presto?
Answer :
The Config properties of Presto are given below table:
Config Properties----->Description
task. info -refresh-max-wait:It reduces coordinator work load.
task.max-worker-threads:It splits the process and assigns to each worker nodes.
distributed-joins-enabled:It is Hashed based distributed joins.
node-scheduler.network-topology:It sets network topology to scheduler.
Question 10. What Are The Various Data Types In Presto?
Answer :
In Presto, there are various data types in Presto.
Question 11. What Are The Functions Of Presto?
Answer :
There are various functions of Presto that are given below:
Function--->Description
Abs(x):It returns the absolute value of X.
Cbrt(x):It returns the cube root of x.
Ceiling(x):It returns the x value rounded up to nearest integer.
Ceil(x):Arial for ceiling(x)
Log2(x):It returns the base 2 logarithm of x.
Question 12. What Is The Use Of Mysql Connector?
Answer :
MYSQL Connector is used to query an external MySQL database.
Question 13. How Can We Create Table By Using Command?
Answer :
We can create table by using command:
presto:tutorials> create table mysql.tutorials.sample as
select * from mysql.tutorials.author;
Question 14. What Is Jmx Connector?
Answer :
JMX stands for Java Management Extension. It gives information about the java virtual machine and software running inside JVM.
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