Lab1 (1)

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University of Southern California *

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551

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Computer Science

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Feb 20, 2024

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Lab 1: EC2 DSCI 551 – Spring 2024 Due: 11:59pm, January 19, 2024, Friday Points: 10 1. [4 points] Explain what each of the following commands doe s, and what each of its arguments means. 1. chmod 400 "dsci2024.pem" 2. ssh -i "dsci2024.pem" ubuntu@ec2-54-183-13-46.us-west-1.compute.amazonaws.com 3. wget https://dlcdn.apache.org/spark/spark-3.5.0/spark-3.5.0-bin-hadoop3.tgz 4. tar xvf spark-3.5.0-bin-hadoop3.tgz 2. [4 points] Please add the following lines to the end of ~/.bashrc file (i.e., .bashrc file under the home directory). Show a screenshot of the file with modified content [last few lines of the file]. Explain what each of the following commands does. export JAVA_HOME=/usr/lib/jvm/default-java export PATH=$PATH:~/spark-3.5.0-bin-hadoop3/bin 3. [2 points] Install Spark by following the instructions in the handout (note the handout has been updated and make sure you use the latest version on d2l) and submit a screenshot showing the successful starting up of pyspark. [ screenshot should include the prompt from “ pyspark” command] SUBMISSION INSTRUCTIONS: 1. Submit a PDF file with answers for the above questions. 2. LATE submissions will not be accepted. 3. 10% PENALTY if submission instructions are violated.
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