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Cloudera CCA-470 Exam Syllabus Topics:

Cloudera Certified Administrator for Apache Hadoop CDH4 Upgrade Exam (CCAH) Sample Questions:

1. Which MapReduce v2 (MR2/YARN) daemon is a per-machine slave responsible for launching application containers and monitoring application resources usage?

A) ResourceManager
B) NodeManager
C) ApplicationMasterService
D) ApplicationMaster
E) TaskTracker
F) JobTracker

2. Identify two features/issues that MapReduce v2 (MRv2/YARN) is designed to address:

A) Reduce complexity of the MapReduce APIs.
B) Ability to run frameworks other than MapReduce, such as MPI.
C) HDFS latency.
D) Resource pressure on the JobTrackr
E) Standardize on a single MapReduce API.
F) Single point of failure in the NameNode.

3. Hadoop provider web interface can be used for all of the following EXCEPT: (choose 1)

A) Keeping track of jobs running on the cluster.
B) Keeping track of processor and memory utilization on each individual slave node.
C) Keeping track of the number of files and directories stored in HDFS.
D) Browsing files in HDFS.
E) Keeping track of tasks running on each individual slave node.

4. What does CDH packaging do on install to facilitate Kerberos security setup?

A) Automatically configure permissions for log files at $MAPPED_LOG_DIR/userlogs
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) Creates and configures you kdc with default cluster values.
E) Creates users for hdfs and mapreduce to facilitate role assignment.

5. Which of the following statements arc accurate in describing features of Hadoop rack awareness? (Choose 2)

A) Even for small clusters on a single rack, configuring rack awareness will improve performance.
B) HDFS is rack aware but MapReduce daemons are not.
C) Hadoop gives preference to intra-rack data transfer In order to conserve bandwidth.
D) Rack location is considered in the HDFS block placement policy.
E) Configuration of rack awareness is accomplished using a configuration file. You cannot use a rack topology script.

Solutions: