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CCA-500 Dumps - Cloudera Certified Administrator for Apache Hadoop (CCAH) Practice Exam Questions

Cloudera CCA-500 - CCAH Practice Exam

  • Certification Provider:Cloudera
  • Exam Code:CCA-500
  • Exam Name:Cloudera Certified Administrator for Apache Hadoop (CCAH) Exam
  • Total Questions:60 Questions and Answers
  • Updated on:Nov 21, 2024
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CCA-500 Question and Answers

Question # 1

You are running a Hadoop cluster with a NameNode on host mynamenode. What are two ways to determine available HDFS space in your cluster?

Options:

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

Discussion 0
Question # 2

You have installed a cluster HDFS and MapReduce version 2 (MRv2) on YARN. You have no dfs.hosts entry(ies) in your hdfs-site.xml configuration file. You configure a new worker node by setting fs.default.name in its configuration files to point to the NameNode on your cluster, and you start the DataNode daemon on that worker node. What do you have to do on the cluster to allow the worker node to join, and start sorting HDFS blocks?

Options:

A.  

Without creating a dfs.hosts file or making any entries, run the commands hadoop.dfsadmin-refreshModes on the NameNode

B.  

Restart the NameNode

C.  

Creating a dfs.hosts file on the NameNode, add the worker Node’s name to it, then issue the command hadoop dfsadmin –refresh Nodes = on the Namenode

D.  

Nothing; the worker node will automatically join the cluster when NameNode daemon is started

Discussion 0
Question # 3

Which two features does Kerberos security add to a Hadoop cluster? (Choose two)

Options:

A.  

User authentication on all remote procedure calls (RPCs)

B.  

Encryption for data during transfer between the Mappers and Reducers

C.  

Encryption for data on disk (“at rest”)

D.  

Authentication for user access to the cluster against a central server

E.  

Root access to the cluster for users hdfs and mapred but non-root access for clients

Discussion 0

PDF vs Software Version

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