Apache Spark Online Test
About the test
The Apache Spark online test evaluates a candidate's knowledge of the Spark framework, how to use it to configure Spark clusters, and how to perform distributed processing of large data sets across clusters of computers.
It's an ideal test for the pre-employment screening of candidates applying for roles such as Spark developers, testers, and administrators.
This test requires candidates to answer questions based on Spark infrastructure, its configuration, and running transform and action operations on data sets.
Sample public questions
To analyze live streaming gameplay data of an online game, a new Spark based application is developed. But, deploying and running the application on a cluster with 1 driver and 3 worker nodes is throwing the "Initial job has not accepted any resources" error.
Which options are potential explanations for the error?
Mapper, a GPS based map program uses Spark at its backend to find all specified locations within a given distance 'd' from user's current location. The program works on an RDD named coordinateRDD which contains GPS locations of a searched location type, for example 'restaurants'.
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Skills and topics tested
- Apache Spark
- Performance Tuning
- RDD Operations
- Resilient Distributed Dataset
- Spark Accumulators
- Spark Broadcast Variables
For job roles
- Big Data Engineer
- Spark Administrator
- Spark Developer
- Spark Tester
Sample candidate report
What others say
Simple, straight-forward technical testing
TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.
Jan Opperman, Grindrod Bank
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