Hortonworks Data Platform Certified Developer : HDPCD

  • Exam Code: HDPCD
  • Exam Name: Hortonworks Data Platform Certified Developer
  • Q & A: 110 Questions and Answers

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About Hortonworks Data Platform Certified Developer : HDPCD Exam

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Hortonworks HDPCD Exam Overview:

Certification Vendor:Cloudera (formerly Hortonworks)
Exam Name:Hortonworks Data Platform Certified Developer (HDPCD) Exam
Exam Number:HDPCD
Related Certifications:Hortonworks Data Platform Certified Administrator (HDPCA)
Cloudera Certified Associate (CCA)
Exam Format:Performance-based (hands-on lab exam)
Available Languages:English
Recommended Training:Cloudera Training and Certification Courses
Exam Registration:Cloudera Certification Registration
Sample Questions:Free Download HDPCD Exam PDF Torrent
Exam Way:Online performance-based lab exam
Pre Condition:Basic knowledge of Hadoop ecosystem, Linux command line, and programming experience (Java or scripting languages recommended).
Official Syllabus URL:https://www.cloudera.com/about/training/certification.html

Hortonworks HDPCD Exam Syllabus Topics:

SectionObjectives
Hadoop Ecosystem Fundamentals- HDFS (Hadoop Distributed File System)
  • 1. Data storage architecture and replication
    • 2. File operations and HDFS commands
      - YARN (Yet Another Resource Negotiator)
      • 1. Resource management and scheduling
        Scripting and Workflow Tools- Pig
        • 1. Pig Latin scripting for data transformation
          - Oozie
          • 1. Workflow orchestration for Hadoop jobs
            Data Processing with Hive- HiveQL
            • 1. Writing queries for data analysis
              • 2. Joins, aggregations, and transformations
                - Hive data modeling
                • 1. Tables, partitions, and bucketing
                  Data Ingestion and Movement- Flume
                  • 1. Streaming data ingestion pipelines
                    - Sqoop
                    • 1. Import/export between RDBMS and HDFS
                      MapReduce Programming- MapReduce job development
                      • 1. Input/output formats
                        • 2. Mapper and Reducer logic

                          HDPCD Questions Answered: Format, Cost, and Prep

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                          Hortonworks points candidates toward these official training options:

                          Combine a course that fits your schedule with regular question practice for the steadiest progress.

                          Hortonworks sets the following prerequisites for the Hortonworks Data Platform Certified Developer: Basic knowledge of Hadoop ecosystem, Linux command line, and programming experience (Java or scripting languages recommended)..

                          Confirm the current requirements on the official certification page before booking.

                          The Hortonworks Data Platform Certified Developer blueprint is organized into these main domains:

                          • Data Ingestion and Movement
                          • Scripting and Workflow Tools
                          • Data Processing with Hive

                          Further domains complete the official outline, and our question bank spans all of them.

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                          Hortonworks Data Platform Certified Developer Sample Questions:

                          Question #1

                          Which one of the following statements is true regarding a MapReduce job?

                          • A. The reduce method is invoked once for each unique value
                          • B. The default Hash Partitioner sends key value pairs with the same key to the same Reducer
                          • C. The job's Partitioner shuffles and sorts all (key.value) pairs and sends the output to all reducers
                          • D. The Mapper must sort its output of (key.value) pairs in descending order based on value
                          Reveal Solution  Discussion  0

                          Correct Answer: C  🗳️

                          Question #2

                          What does the following WebHDFS command do?
                          Curl -1 -L "http://host:port/webhdfs/v1/foo/bar?op=OPEN"

                          • A. Delete a directory /foo/bar
                          • B. Make a directory /foo/bar
                          • C. Read a file /foo/bar
                          • D. List a directory /foo
                          Reveal Solution  Discussion  0

                          Correct Answer: C  🗳️

                          Question #3

                          You want to understand more about how users browse your public website, such as which pages they visit prior to placing an order. You have a farm of 200 web servers hosting your website. How will you gather this data for your analysis?

                          • A. Import all users' clicks from your OLTP databases into Hadoop, using Sqoop.
                          • B. Channel these clickstreams inot Hadoop using Hadoop Streaming.
                          • C. Write a MapReduce job, with the web servers for mappers, and the Hadoop cluster nodes for reduces.
                          • D. Sample the weblogs from the web servers, copying them into Hadoop using curl.
                          • E. Ingest the server web logs into HDFS using Flume.
                          Reveal Solution  Discussion  0

                          Correct Answer: E  🗳️

                          Question #4

                          Given the following Hive command:

                          Which one of the following statements is true?

                          • A. The files in the mydata folder are moved to a subfolder of /apps/hive/wa re house
                          • B. The files in the mydata folder are copied into Hive's underlying relational database
                          • C. The files in the mydata folder do not move from their current location In HDFS
                          • D. The files in the mydata folder are copied to a subfolder of /apps/hlve/warehouse
                          Reveal Solution  Discussion  0

                          Correct Answer: C  🗳️

                          Question #5

                          Review the following data and Pig code.
                          M,38,95111 F,29,95060 F,45,95192 M,62,95102 F,56,95102
                          A = LOAD 'data' USING PigStorage('.') as (gender:Chararray, age:int, zlp:chararray);
                          B = FOREACH A GENERATE age;
                          Which one of the following commands would save the results of B to a folder in hdfs named myoutput?

                          • A. DUMP B using PigStorage('myoutput');
                          • B. STORE B INTO 'myoutput';
                          • C. STORE A INTO 'myoutput' USING PigStorage(',');
                          • D. DUMP B INTO 'myoutput';
                          Reveal Solution  Discussion  0

                          Correct Answer: B  🗳️

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