The Geek Diary

Preparing for the CCA Administrator Exam (CCA131)

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CCA 131 or Cloudera Administration Certification Exam is the most valued certification exam in the Hadoop world. The exam is practical oriented with sample scenarios to work upon.

Number of Questions: 8–12 performance-based (hands-on) tasks on pre-configured Cloudera Enterprise cluster.
Time Limit: 120 minutes
Passing Score: 70%
Language: English
Price: USD $295

Exam Objectives

Install

Demonstrate an understanding of the installation process for Cloudera Manager, CDH, and the ecosystem projects.

  1. Set up a local CDH repository
  2. Perform OS-level configuration for Hadoop installation
  3. Install Cloudera Manager server and agents
  4. Install CDH using Cloudera Manager
  5. Add a new node to an existing cluster
  6. Add a service using Cloudera Manager

Configure

Perform basic and advanced configuration needed to effectively administer a Hadoop cluster

  1. Configure a service using Cloudera Manager
  2. Create an HDFS user’s home directory
  3. Configure NameNode HA
  4. Configure ResourceManager HA
  5. Configure proxy for Hiveserver2/Impala

Manage

Maintain and modify the cluster to support day-to-day operations in the enterprise

  1. Rebalance the cluster
  2. Set up alerting for excessive disk fill
  3. Define and install a rack topology script
  4. Install new type of I/O compression library in cluster
  5. Revise YARN resource assignment based on user feedback
  6. Commission/decommission a node

Secure

Enable relevant services and configure the cluster to meet goals defined by security policy; demonstrate knowledge of basic security practices

  1. Configure HDFS ACLs
  2. Install and configure Sentry
  3. Configure Hue user authorization and authentication
  4. Enable/configure log and query redaction
  5. Create encrypted zones in HDFS

Test

Benchmark the cluster operational metrics, test system configuration for operation and efficiency

  1. Execute file system commands via HTTPFS
  2. Efficiently copy data within a cluster/between clusters
  3. Create/restore a snapshot of an HDFS directory
  4. Get/set ACLs for a file or directory structure
  5. Benchmark the cluster (I/O, CPU, network)

Troubleshoot

Demonstrate ability to find the root cause of a problem, optimize inefficient execution, and resolve resource contention scenarios

  1. Resolve errors/warnings in Cloudera Manager
  2. Resolve performance problems/errors in cluster operation
  3. Determine reason for application failure
  4. Configure the Fair Scheduler to resolve application delays

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