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Home Microsoft 70-775

Microsoft 70-775 Exam Practice Questions (P. 2)

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Question #6
You have an Azure HDInsight cluster.
You need a build a solution to ingest real-time streaming data into a nonrelational distributed database.
What should you use to build the solution?
  1. A
    Apache Hive and Apache Kafka
  2. B
    Spark and Phoenix
  3. C
    Apache Storm and Apache HBase
  4. D
    Apache Pig and Apache HCatalog

Correct Answer:
C
References:
http://storm.apache.org/
http://hbase.apache.org/

Question #7
You have an Apache Hive table that contains one billion rows.
You plan to use queries that will filter the data by using the WHERE clause. The values of the columns will be known only while the data loads into a Hive table.
You need to decrease the query runtime.
What should you configure?
  1. A
    static partitioning
  2. B
    bucket sampling
  3. C
    parallel execution
  4. D
    dynamic partitioning

Correct Answer:
C
References: https://www.qubole.com/blog/5-tips-for-efficient-hive-queries/

Question #8
You plan to copy data from Azure Blob storage to an Azure SQL database by using Azure Data Factory.
Which file formats can you use?
  1. A
    binary, JSON, Apache Parquet, and ORC
  2. B
    OXPS, binary, text and JSON
  3. C
    XML, Apache Avro, text, and ORC
  4. D
    text, JSON, Apache Avro, and Apache Parquet

Correct Answer:
D
References: https://docs.microsoft.com/en-us/azure/data-factory/supported-file-formats-and-compression-codecs

Question #9
You have an Apache Spark cluster in Azure HDInsight.
You plan to join a large table and a lookup table.
You need to minimize data transfers during the join operation.
What should you do?
  1. A
    Use the reduceByKey function.
  2. B
    Use a Broadcast variable.
  3. C
    Repartition the data.
  4. D
    Use the DISK_ONLY storage level.

Correct Answer:
B
References: https://www.dezyre.com/article/top-50-spark-interview-questions-and-answers-for-2017/208

Question #10
DRAG DROP -
You have an Apache Hive cluster in Azure HDInsight.
You need to tune a Hive query to meet the following requirements:
✑ Use the Tez engine.
✑ Process 1,024 rows in a batch.
How should you complete the query? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all.
You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Select and Place:


Correct Answer:

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