Online Access Free CCA-505 Exam Questions

Your cluster's mapped-site.xml includes the following parameters
<name>mapreduce.map.memory.mb</name>
<value>4096<value/>
<name>mapreduce.reduce.memory,mb</name>
<value>8192</value>
And your cluster's yarn-site.xml includes the following parameters
<name>yarn.nodemanager/vmen-pmem-ratio</name>
<value>2.1</value>
What is the maximum amount of virtual memory allocated for each map before YARN will kill its Container?

• A.4 GB
• B.8.2 GB
• C.17.2 GB
• D.24.6 GB

In CDH4 and later, which file contains a serialized form of all the directory and files inodes in the filesystem, giving the NameNode a persistent checkpoint of the filesystem metadata?

• A.VERSION
• B.Fsimage_N (Where N reflects all transactions up to transaction ID N)
• C.Edits_N-M (Where N-M specifies transactions between transactions ID N and transaction ID N)
• D.fstime

Identify two features/issues that YARN is designed to address:

• A.Ability to run frameworks other than MapReduce, such as MPI
• B.Standardize on a single MapReduce API
• C.HDFS latency
• D.Single point of failure in the NameNode
• E.Resource pressures on the JobTracker
• F.Reduce complexity of the MapReduce APIs

Which Yarn daemon or service monitors a Container's per-application resource usage (e.g, memory, CPU)?

• A.NodeManager
• B.ApplicationManagerService
• C.ApplicationMaster
• D.ResourceManager

You want to understand more about how users browse you public website. For example, you want to know which pages they visit prior to placing an order. You have a server farm of 200 web servers hosting your website. Which is the most efficient process to gather these web server logs into your Hadoop cluster for analysis?

• A.Channel these clickstream into Hadoop using Hadoop Streaming
• B.Write a MApReduce job with the web servers from mappers and the Hadoop cluster nodes reducers
• C.Import all users clicks from your OLTP databases into Hadoop using Sqoop
• D.Ingest the server web logs into HDFS using Flume
• E.Sample the web server logs web servers and copy them into HDFS using curl