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Hadoop Assessment Test

This Hadoop test evaluates candidates' understanding of Hadoop ecosystem, including HDFS, MapReduce, and YARN. It assesses their ability to manage and process large datasets efficiently, ensuring they can leverage Hadoop's capabilities for data storage and analysis.

Proficiency Level
Beginner-Expert
Experience
0-8 years
Duration
20 mins
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Use Case

  • Evaluates understanding of Hadoop troubleshooting and cluster setup skills.
  • Assesses secure Hadoop and Hive configuration knowledge.
  • Tests familiarity with Hive Streaming mutation API performance impact.
  • Identifies ability to configure and secure multi-node Hadoop clusters.

Skills Covered

Hadoop

About

Hadoop Assessment Test

This Hadoop test is designed to assess candidates' proficiency in the Hadoop ecosystem, focusing on key components such as HDFS, MapReduce, and YARN. It evaluates their ability to handle and process large datasets, ensuring they can effectively utilize Hadoop's distributed computing capabilities for data storage, processing, and analysis. The test aims to identify individuals who can implement Hadoop solutions to optimize data workflows and support data-driven decision-making processes.

Target Audience

This assessment is ideal for roles such as Data Scientists, Machine Learning Engineers, Big Data Analysts, Hadoop Developers, Data Engineers, and IT Professionals involved in data management and analysis.

Prerequisites
  • Understanding of distributed computing concepts
  • Familiarity with Hadoop ecosystem components
  • Basic knowledge of HDFS, MapReduce, and YARN
  • Experience with data processing and analysis
  • Ability to write and debug code
  • Understanding of data storage solutions
  • Familiarity with data-driven decision-making processes
Test Overview
Duration
20 mins
Questions
10
Passing Score
70%

Questions

Troubleshoot Datanode issues in Hadoop
Clusters
Clusters
Hadoop
IT-Enterprise Tools
Knowledge
L3
What this question evaluates
This question evaluates the candidate's understanding of troubleshooting Datanode issues in a Hadoop cluster multinode setup, particularly in verifying file execution permissions. The candidate should be familiar with the configuration properties related to Datanode data directories, and in this scenario, they need to validate the configuration of one specific property.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Refuse to impersonate users
Hadoop
Hadoop
IT-Enterprise Tools
Knowledge
L2
MCQ
What this question evaluates
This question tests the candidate's knowledge of configuring YARN secure containers in Hadoop. It requires understanding of the properties associated with yarn.nodemanager.windows-secure-container-executor and their purpose.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Set up a multi node Hadoop cluster in Ubuntu
Clusters
Clusters
Hadoop
IT-Enterprise Tools
Knowledge
L2
What this question evaluates
This question evaluates the candidate's knowledge of setting up a multi-node Hadoop cluster in Ubuntu. It requires understanding of SSH key generation and distribution to the cluster nodes, as well as the appropriate method for doing so.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Satisfy the mutation API requirements
Hadoop
Hadoop
IT-Enterprise Tools
Knowledge
L2
MCQ
What this question evaluates
This question evaluates the candidate's understanding of the Apache Hive mutation API. It requires knowledge of how to extract and serialize data using the mutation API. The candidate must also be familiar with the concepts of ObjectInspector and indexing within the record structure.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Hadoop WebHCat templeton cluster
Hadoop
Hadoop
IT-Enterprise Tools
Knowledge
L2
MCQ
What this question evaluates
This question evaluates the candidate's familiarity with Hadoop administration and security, specifically in the context of using a Hadoop WebHCat Templeton cluster with Kerberos security. It requires understanding of the relevant configuration properties related to security, such as enabling SASL and setting execute.setugi.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Secure connection in Hive
Hadoop
Hadoop
Hive
IT-Enterprise Tools
Knowledge
L2
What this question evaluates
This question evaluates the candidate's familiarity with configuring secure connections in Hive while working with the Streaming mutation API. It requires understanding of the properties in the HiveConf object and their significance in establishing a secure connection. The candidate must be able to identify the specific property that needs to be configured for this purpose.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Ingest data using Hive Streaming mutation API
Hadoop
Hadoop
Hive
IT-Enterprise Tools
Knowledge
L2
What this question evaluates
This question evaluates the candidate's familiarity with Hive Streaming mutation API and the impact of precreating or preconfiguring certain objects/configurations on performance. It requires understanding of HiveConf object, hive.support.concurrency, and hive.exec.dynamic.partition.mode. The candidate must identify which objects/configurations would adversely impact performance in the given context.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Protect web server from clickjacking
Hadoop
Hadoop
IT-Enterprise Tools
Knowledge
L2
MCQ
What this question evaluates
This question evaluates the candidate's familiarity with web server protection techniques and specifically, clickjacking prevention. It requires understanding of WebHCat, templeton cluster, and the various properties that can be used to configure web server protection. The candidate must recognize the properties that are relevant for preventing clickjacking and understand their purpose in ensuring web server security.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Configure a multi node Hadoop cluster
Clusters
Clusters
Hadoop
IT-Enterprise Tools
Knowledge
L2
What this question evaluates
This question is testing the candidate's proficiency in setting up and configuring a multi-node Hadoop cluster in Ubuntu. It requires a sound understanding of managing environment variables within the bashrc file.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
Encode tables to perform transaction management
Hadoop
Hadoop
IT-Enterprise Tools
Knowledge
L2
MCQ
What this question evaluates
This question evaluates the candidate's understanding of serialization and configuration properties in the context of the mutation API. It requires knowledge of the classes involved in encoding tables for use with the MutatorClient class. The candidate must be able to identify the correct class to use for encoding tables to be used as configuration properties.
Type:
Programming
Difficulty:
Medium
Time:
1 mins
Attempts:
100+
Success Rate:
70.01%
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Dashboard mockup
Wei Zhang
Candidate
Passed
85%
AI Summary
Skills Performance
Score
Hadoop
87%
80%
85%
82%
Areas of Improvement
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Practice
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Advance Skill Analytics
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Learning & Development Integration
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Employee Friendly User Experience
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Retention-Focused Features
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Advance compliance, security and audits
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Proactive support from WeCP Team
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Access to WeCP AI Copilot to save cost, time and improve outcomes
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