CCA-505 by Cloudera Actual Free Exam Q&As

Question 1

You are configuring a cluster running HDFS, MapReduce version 2 (MRv2) on YARN
running Linux. How must you format the underlying filesystem of each DataNode?

A. They may be formatted in any Linux filesystem B. They must be formatted as HDFS C. They must be formatted as either ext3 or ext4 D. They must not formatted - - HDFS will format the filesystem automatically

Discussion 0

Correct Answer: C Vote an answer

Question 2

You are configuring your cluster to run HDFS and MapReduce v2 (MRv2) on YARN. Which daemons need to be installed on your clusters master nodes? (Choose Two)

A. JobTracker B. DataNode C. TaskTracker D. HMaster E. ResourceManager F. NameNode

Discussion 0

Correct Answer: E,F Vote an answer

Question 3

You decide to create a cluster which runs HDFS in High Availability mode with automatic failover, using Quorum-based Storage. What is the purpose of ZooKeeper in such a configuration?

A. It both keeps track of which NameNode is Active at any given time, and manages the Edits file, which is a log of changes to the HDFS filesystem B. It manages the Edits file, which is a log changes to the HDFS filesystem. C. It monitors an NFS mount point and reports if the mount point disappears D. Clients connect to ZoneKeeper to determine which NameNode is Active E. It only keeps track of which NameNode is Active at any given time

Discussion 0

Correct Answer: E Vote an answer

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Question 4

You have a Hadoop cluster running HDFS, and a gateway machine external to the cluster from which clients submit jobs. What do you need to do in order to run on the cluster and submit jobs from the command line of the gateway machine?

A. Install the impalad daemon, statestored daemon, and catalogd daemon on each machine in the cluster, and the impala shell on your gateway machine B. Install the impalad daemon, the statestored daemon, the catalogd daemon, and the impala shell on your gateway machine C. Install the impalad daemon on each machine in the cluster, the statestored daemon and catalogd daemon on one machine in the cluster, and the impala shell on your gateway machine D. Install the impslad daemon, statestored daemon, and catalogd daemon on each machine in the cluster and on the gateway node E. Install the impalad daemon and the impala shell on your gateway machine, and the statestored daemon and catalog daemon on one of the nodes in the cluster

Discussion 0

Correct Answer: C Vote an answer

Question 5

You are migrating a cluster from MapReduce version 1 (MRv1) to MapReduce version2 (MRv2) on YARN. To want to maintain your MRv1 TaskTracker slot capacities when you migrate. What should you do?

A. Configure yarn.applicationmaster.resource.memory-mb and yarn.applicationmaster.cpuvcores so that ApplicationMaster container allocations match the capacity you require. B. Configure yarn.nodemanager.resource.memory-mb and yarn.nodemanager.resource.cpu-vcores to match the capacity you require under YARN for each NodeManager C. Configure mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maximum ub yarn.site.xml to match your cluster's configured capacity set by yarn.scheduler.minimum-allocation D. You don't need to configure or balance these properties in YARN as YARN dynamically balances resource management capabilities on your cluster

Discussion 0

Correct Answer: B Vote an answer

Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade - CCA-505 Exam Practice Test