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Vendor: Cloudera
Exam Code: CCA-500
Exam Name: Cloudera Certified Administrator for Apache Hadoop (CCAH)
Certification Provider: Cloudera
Total Questions: 60 Q&A
Updated on: Jul 01, 2026
Note: Product instant download. Please sign in and click My account to download your product.You need to analyze 60,000,000 images stored in JPEG format, each of which is approximately 25 KB. Because you Hadoop cluster isn't optimized for storing and processing many small files, you decide to do the following actions:
1.
Group the individual images into a set of larger files
2.
Use the set of larger files as input for a MapReduce job that processes them directly with python using Hadoop streaming.
Which data serialization system gives the flexibility to do this?
A. CSV
B. XML
C. HTML
D. Avro
E. SequenceFiles
F. JSON
You are running a Hadoop cluster with a NameNode on host mynamenode. What are two ways to determine available HDFS space in your cluster?
A. Run hdfs fs du / and locate the DFS Remaining value
B. Run hdfs dfsadmin report and locate the DFS Remaining value
C. Run hdfs dfs / and subtract NDFS Used from configured Capacity
D. Connect to http://mynamenode:50070/dfshealth.jsp and locate the DFS remaining value
Your Hadoop cluster contains nodes in three racks. You have not configured the dfs.hosts property in the NameNode's configuration file. What results?
A. The NameNode will update the dfs.hosts property to include machines running the DataNode daemon on the next NameNode reboot or with the command dfsadmin refreshNodes
B. No new nodes can be added to the cluster until you specify them in the dfs.hosts file
C. Any machine running the DataNode daemon can immediately join the cluster
D. Presented with a blank dfs.hosts property, the NameNode will permit DataNodes specified in mapred.hosts to join the cluster
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