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Cloudera Certified Administrator for Apache Hadoop CDH4 Sample Questions:

1. Your company stores user profile records in an OLTP database. You want to join these records with webserver logs. You have already ingested into the hadoop file system. What is the best way to obtain and ingest these user records?

A) Ingest with Pig's Load Command
B) Ingest with hadoop streaming
C) Ingest with flume agents
D) Ingest using the HDFS put command
E) Ingest using hives LOAD DATA command
F) Ingest with SQL import

2. Your cluster implements hdfs high availability (HA) your two namenodes are named hadoop01 and hadoop02. What occurs when you execute the command:
Sudo -u hdfs haadmin -failover hadoop01 hadoop02

A) Hadoop02 becomes the standby namenode and hadoop01 becomes the active namenode
B) Hadoop01 is fenced, and hadoop02 becomes the active namenode
C) Hadoop02 is fenced, and hadoop01 becomes active namenode
D) Hadoop01 becomes inactive and hadoop02 becomes the active namenode

3. Identify the daemon that performs checkpoint operations of the namespace state in a cluster configured with HDFS High Availability (HA) using Quorum based-storage?

A) Standby NameNode
B) CheckpointNode
C) NameNode
D) JournalNode
E) BackupNode
F) Secondary NameNode
G) NodeManeger

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

A) Creates and configures you kdc with default cluster values.
B) Creates a set of pre-configured Kerberos keytab files and their permissions.
C) Automatically configure permissions for log files at $MAPPED_LOG_DIR/userlogs
D) Creates users for hdfs and mapreduce to facilitate role assignment.
E) Creates directories for temp, hdfs, and mapreduce with correct permissions.

5. You install Cloudera Manager on a cluster where each host has 1 GB of RAM. All of the services show their status as concerning. However, all jobs submitted complete without an error.
Why is Cloudera Manager showing the concerning status KM the services?

A) DataNode service instance has crashed.
B) The slave nodes are swapping.
C) A slave node's disk ran out of space
D) The slave nodes, haven't sent a heartbeat in 60 minutes

Solutions: