Free Google GCP-DE Exam Dumps Questions & Answers

Which of these rules apply when you add preemptible workers to a Dataproc cluster (select 2 answers)?

• A.If a preemptible worker is reclaimed, then a replacement worker must be added manually.
• B.Preemptible workers cannot use persistent disk.
• C.A Dataproc cluster cannot have only preemptible workers.
• D.Preemptible workers cannot store data.

All Google Cloud Bigtable client requests go through a front-end server they are sent to a Cloud Bigtable node.

• A.once
• B.before
• C.after
• D.only if

You architect a system to analyze seismic dat
a. Your extract, transform, and load (ETL) process runs as a series of MapReduce jobs on an Apache Hadoop cluster. The ETL process takes days to process a data set because some steps are computationally expensive. Then you discover that a sensor calibration step has been omitted. How should you change your ETL process to carry out sensor calibration systematically in the future?

• A.Introduce a new MapReduce job to apply sensor calibration to raw data, and ensure all other MapReduce jobs are chained after this.
• B.Modify the transformMapReduce jobs to apply sensor calibration before they do anything else.
• C.Add sensor calibration data to the output of the ETL process, and document that all users need to apply sensor calibration themselves.
• D.Develop an algorithm through simulation to predict variance of data output from the last MapReduce job based on calibration factors, and apply the correction to all data.

Which row keys are likely to cause a disproportionate number of reads and/or writes on a particular node in a Bigtable cluster (select 2 answers)?

• A.A sequential numeric ID
• B.A non-sequential numeric ID
• C.A stock symbol followed by a timestamp
• D.A timestamp followed by a stock symbol

You want to migrate an on-premises Hadoop system to Cloud Dataproc. Hive is the primary tool in use, and the data format is Optimized Row Columnar (ORC). All ORC files have been successfully copied to a Cloud Storage bucket. You need to replicate some data to the cluster's local Hadoop Distributed File System (HDFS) to maximize performance. What are two ways to start using Hive in Cloud Dataproc? (Choose two.)

• A.Run the gsutil utility to transfer all ORC files from the Cloud Storage bucket to HDF
• B.Leverage BigQuery connector for Hadoop to mount the BigQuery tables as external Hive table
• C.Run the gsutil utility to transfer all ORC files from the Cloud Storage bucket to any node of the Dataproc cluste
• D.Replicate external Hive tables to the native ones.
• E.Mount the Hive tables from HDFS.
• F.Leverage Cloud Storage connector for Hadoop to mount the ORC files as external Hive table
• G.Mount the Hive tables locally.
• H.Then run the Hadoop utility to copy them do HDF
• I.Replicate external Hive tables to the native ones.
• J.Mount the Hive tables locally.
• K.Load the ORC files into BigQuer
• L.Run the gsutil utility to transfer all ORC files from the Cloud Storage bucket to the master node of the Dataproc cluste