Try Cloudera : CCA-470 valid & accurate questions and answers
Updated: Jun 02, 2026
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Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH) Sample Questions:
1. You've configured your cluster with HDFS Federation. One NameNode manages the /data namesapace and another Name/Node manages the /reports namespace. How do you configure a client machine to access both the /data and the /reports directories on the cluster?
A) Configure the client to mount the /data namespace. As long as a single namespace is mounted and the client participates in the cluster, HDFS grants access to all files in the cluster to that client.
B) Configure the client to mount both namespaces by specifying the appropriate properties in the core-site.xml
C) You cannot configure a client to access both directories in the current implementation of HDFS Federation.
D) You don't need to configure any parameters on the client machine. Access is controlled by the NameNodes managing the namespace.
2. Identify two features/issues that MapReduce v2 (MRv2/YARN) is designed to address:
A) Standardize on a single MapReduce API.
B) Ability to run frameworks other than MapReduce, such as MPI.
C) HDFS latency.
D) Single point of failure in the NameNode.
E) Resource pressure on the JobTrackr
F) Reduce complexity of the MapReduce APIs.
3. Which two features does Kerberos security add to a Hadoop cluster?
A) Root access to the cluster for users hdfs and mapred but non-root acess clients
B) Encryption on all remote procedure calls (RPCs)
C) Authentication for user access to the cluster against a central server
D) User authentication on all remote procedure calls (RPcs)
E) Encryption for data on disk ("at rest")
4. It is recommended that you run the HDFS balancer periodically. Why? (Choose 3)
A) To ensure that there is capacity in HDTS for additional data.
B) To ensure that there is consistent disk utilization across the DataNodes.
C) To ensure that all blocks in the cluster are 128MB in size.
D) To help HDFS deliver consistent performance under heavy loads.
E) To improve data locality for MapReduce tasks.
5. What does CDH packaging do on install to facilitate Kerberos security setup?
A) Creates users for hdfs and mapreduce to facilitate role assignment.
B) Creates a set of pre-configured Kerberos keytab files and their permissions.
C) Creates directories for temp, hdfs, and mapreduce with correct permissions.
D) Automatically configure permissions for log files at $MAPPED_LOG_DIR/userlogs
E) Creates and configures you kdc with default cluster values.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: B,E | Question # 3 Answer: B,D | Question # 4 Answer: A,B,D | Question # 5 Answer: A |
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