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Cloudera CCA-410 Exam Overview:
| Certification Vendor: | Cloudera |
| Exam Name: | Cloudera Certified Administrator for Apache Hadoop (CDH4) |
| Exam Number: | CCA-410 |
| Real Exam Qty: | Performance-based exam (no fixed question count) |
| Related Certifications: | Cloudera Certified Associate (CCA) Data Analyst Cloudera Certified Associate (CCA) Spark and Hadoop Developer |
| Certificate Validity Period: | Typically 2 years (historical Cloudera certification policy) |
| Exam Price: | USD 295 (historical pricing, may vary) |
| Available Languages: | English |
| Exam Duration: | 120 minutes |
| Exam Format: | Performance-based tasks, Hands-on lab exam |
| 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 | - Data lifecycle operations
|
| Cluster Architecture and Installation | - CDH4 cluster planning and deployment
|
| MapReduce and Processing Framework | - MapReduce v1 execution model (CDH4)
|
| Security and User Management | - Authentication and authorization
|
| Cluster Monitoring and Troubleshooting | - Monitoring tools and logs
|
Cloudera Certified Administrator for Apache Hadoop CDH4 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) You cannot configure a client to access both directories in the current implementation of HDFS Federation.
C) You don't need to configure any parameters on the client machine. Access is controlled by the NameNodes managing the namespace.
D) Configure the client to mount both namespaces by specifying the appropriate properties in the core-site.xml
2. Which daemons instantiates JVM's to perform mapreduce processing in a cluster running mapreduce v1 (MRv1)?
A) Tasktracker
B) Datanode
C) Jobtracker
D) applicationmanager
E) Nodemanager
F) Namenode
G) Applicationmaster
H) Resourcemanager
3. In HDFS, you view a file with rw-r--r-- set as its permissions. What does this tell you about the file?
A) The file cannot be deleted by anyone
B) The file cannot be run as a MapReduce job
C) The file cannot be deleted by anyone but the owner
D) As a Filesystem in Userspace (FUSE), HDFS files are available to all user's on a cluster regardless of their underlying POSIX permissions.
E) The file's contents can be modified by the owner, but no-one else
4. 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) Presented with a blank dfs.hosts property, the NameNode will permit DataNodes specified in mapred.hosts to join the cluster.
B) Any machine running the DataNode daemon can immediately join the cluster.
C) The NameNode will update dfs.hosts property to include machines running the DataNode daemon on the next NameNode reboot or with a dfsadmin -refreshNodes.
D) No new can be added to the cluster until you specify them in the dfs.hosts file.
5. Your existing Hadoop cluster has 30 slave nodes, each of which has 4 x 2T hard drives. You plan to add another 10 nodes. How much disk space can your new nodes contain?
A) The new nodes must all contain 8TB of disk space, but it does not matter how the disks are configured
B) The new nodes must all contain 4 x 2TB hard drives
C) The new nodes cannot contain more than 8TB of disk space
D) The new nodes can contain any amount of disk space
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: D |
By Anna
