We're so confident of our products that we provide no hassle product exchange.
Cloudera CCA-410 Exam Overview:
| Certification Vendor: | Cloudera |
|---|---|
| Exam Name: | Cloudera Certified Administrator for Apache Hadoop (CDH4) |
| Exam Number: | CCA-410 |
| Related Certifications: | Cloudera Certified Associate (CCA) Data Analyst Cloudera Certified Associate (CCA) Spark and Hadoop Developer |
| Exam Duration: | 120 minutes |
| Exam Format: | Performance-based tasks, Hands-on lab exam |
| Certificate Validity Period: | Typically 2 years (historical Cloudera certification policy) |
| Exam Price: | USD 295 (historical pricing, may vary) |
| Available Languages: | English |
| Real Exam Qty: | Performance-based exam (no fixed question count) |
| Recommended Training: | Cloudera Training (Hadoop Administration courses) |
| Exam Registration: | Cloudera Certification Portal |
| Sample Questions: | Cloudera CCA-410 Sample Questions |
| Exam Way: | Performance-based online proctored exam (hands-on lab environment) |
| Pre Condition: | Recommended experience with Linux system administration and basic Hadoop concepts |
| Official Syllabus URL: | https://www.cloudera.com |
Cloudera CCA-410 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| HDFS Management | - HDFS architecture and operations
|
| Cluster Monitoring and Troubleshooting | - Performance tuning and optimization
|
| Cluster Architecture and Installation | - Cloudera Manager administration
|
| Security and User Management | - Authentication and authorization
|
| MapReduce and Processing Framework | - MapReduce v1 execution model (CDH4)
|
Cloudera Certified Administrator for Apache Hadoop CDH4 Sample Questions:
Question 1
What four functions do scheduling algorithms perform on hadoop cluster?
A. Reduce the total amount of computation necessary to complete a job.
B. support the implementation of service-level agreements for multiple cluster users
C. Reduce the job latencies in environment with multiple jobs of different sizes
D. Run jobs at periodic times of the day
E. Allow multiple users to share clusters in a predictable policy-guided manner
F. Ensure data locality by ordering map tasks so that they run on data local maps slots
G. allow short jobs to complete even when large, long jobs (consuming a lot of resources are running)
Question 2
Compare the hardware requirements of the NameNode with that of the DataNodes in a Hadoop cluster running MapReduce v1 (MRv1):
A. The NameNode requires more memory and no disk drives.
B. The NameNode requires less memory and less disk capacity than the DataNodes.
C. The NameNode requires more memory but less disk capacity.
D. The NameNode requires more memory and requires greater disk capacity than the DataNodes.
E. The NameNode and DataNodes should the same hardware configuration.
Question 3
Your Hadoop cluster contains nodes in three racks. Choose which scenario results if you leave the dfs.hosts property in the NameNode's configuration file empty (blank)?
A. Any machine running the DataNode daemon can immediately join the cluster.
B. Presented with a blank dfs.hosts property, the NameNode will permit DataNodes specified in mapred.hosts to join the cluster.
C. No new can be added to the cluster until you specify them in the dfs.hosts file.
D. The NameNode will update dfs.hosts property to include machines running the DataNode daemon on the next NameNode reboot or with a dfsadmin -refreshNodes.
Question 4
What happens if a Mapper on one node goes into an infinite loop while running a MapReduce job?
A. After a period of time, the TaskTracker will kill the Map Task.
B. After a period of time, the JobTracker will restart the TaskTracker on the node on which the map task is running
C. The job will immediately fail.
D. The Mapper will run indefinitely; the TaskTracker must be restarted to kill it
Question 5
What does CDH packaging do on install to facilitate Kerberos security setup?
A. Creates a set of pre-configured Kerberos keytab files and their permissions.
B. Creates and configures you kdc with default cluster values.
C. Creates users for hdfs and mapreduce to facilitate role assignment.
D. Creates directories for temp, hdfs, and mapreduce with correct permissions.
E. Automatically configure permissions for log files at $MAPPED_LOG_DIR/userlogs
Solutions:
| Question 1 Answer: A,C,D,G | Question 2 Answer: C | Question 3 Answer: C | Question 4 Answer: A | Question 5 Answer: C |
By William
