Premium

IBM Certified Data Architect - Big Data Certification Questions and Answers (Dumps and Practice Questions)



Question : You have a cluster of Nodes in Geneva Datacenter , and you find a specific node in your cluster appears to be running
slower than other nodes with all having same hardware configuration. You think that RAM could be failure in the system.
Which commands may be used to the view the memory seen in the system?

: You have a cluster of Nodes in Geneva Datacenter , and you find a specific node in your cluster appears to be running
1. free
2. df
 3. Access Mostly Uused Products by 50000+ Subscribers
4. jps

Correct Answer : Get Lastest Questions and Answer :

" lsram does not exist.
" jps lists the running Java processes, but does not provide any information on system memory usage.
" df provides information about free disk space, not RAM.
" top and free can be used to display memory and swap information. In both applications the memory in use includes read cache which will be released for application use before
swapping begins.
" dmidecode shows bios information on a running system. The amount of installed RAM and size of the modules in each slot can be found in the output.


Additionally memory and swap usage can be viewed with cat /proc/meminfo or vmstat.








Question : You have a cluster of Nodes in Geneva Datacenter , and you find a specific node in your cluster appears to be running
slower than other nodes with all having same hardware configuration. You think that RAM could be failure in the system.
Which commands may be used to the view the memory seen in the system?

1. free

2. df

 3. Access Mostly Uused Products by 50000+ Subscribers

4. dmidecode

5. lsram

6. jps

7. memusage


: You have a cluster of Nodes in Geneva Datacenter , and you find a specific node in your cluster appears to be running
1. 1,4,5
2. 1,2,4
 3. Access Mostly Uused Products by 50000+ Subscribers
4. 1,4,6
5. 1,4,7


Correct Answer : Get Lastest Questions and Answer :

" lsram does not exist.
" memusage does not exist.
" jps lists the running Java processes, but does not provide any information on system memory usage.
" df provides information about free disk space, not RAM.
" top and free can be used to display memory and swap information. In both applications the memory in use includes read cache which will be released for application use before
swapping begins.
" dmidecode shows bios information on a running system. The amount of installed RAM and size of the modules in each slot can be found in the output.


Additionally memory and swap usage can be viewed with cat /proc/meminfo or vmstat.

" top and free can be used to display memory and swap information. In both applications the memory in use includes read cache which will be released for application use before
swapping begins.
" dmidecode shows bios information on a running system. The amount of installed RAM and size of the modules in each slot can be found in the output.







Question : What must you do if you are running a Hadoop cluster with a single NameNode, called HadoopExam and DataNodes,
and you wish to change the configuration of all DataNodes.

: What must you do if you are running a Hadoop cluster with a single NameNode, called HadoopExam and DataNodes,
1. You must modify the configuration files on your NameNode where the master configuration files reside for all DataNodes.
2. You must restart all 100 DataNode daemons to apply the changes.

 3. Access Mostly Uused Products by 50000+ Subscribers
4. You must restart the NameNode daemon to apply the changes to the cluster.


Correct Answer : Get Lastest Questions and Answer :

Explanation: To change the configuration of a DataNode daemon, you must modify the configuration file on the machine on which the daemon is running, and then restart that daemon. So to
change the configuration of all datanodes, after changing the configuration files you must restart all six of the DataNodes. You do not need to restart the NameNode, since its
configuration has not changed.



Related Questions

Question : Which of the following can be achieved, using IBM SPSS tool



 : Which of the following can be achieved, using IBM SPSS tool
1. Statistical analysis and reporting

2. Predictive modeling and data mining

3. Access Mostly Uused Products by 50000+ Subscribers

4. Only 1 and 2

5. 1,2,3


Question : You are building an application, where you will be using existing data in your system and also you are getting real time data from one of the websites web server logs.
Which of the following tool will help you to get real time data output by combing both the existing data and real-time log data


 : You are building an application, where you will be using existing data in your system and also you are getting real time data from one of the websites web server logs.
1. BigSQL

2. Apche Spark

 3. Access Mostly Uused Products by 50000+ Subscribers

4. Infosphere Stream



Question : A bigr.frame is an R object that mimics Rs own data.frame. However, unlike R, a bigr.frame does not load that data in memory as that would be impractical. The
data stays in HDFS. However, you will still be able to explore this data using the Big R API.

 : A bigr.frame is an R object that mimics Rs own data.frame. However, unlike R, a bigr.frame does not load that data in memory as that would be impractical. The
1. True
2. False


Question : Unless specified otherwise, Big R automatically assumes all data to be strings.
 : Unless specified otherwise, Big R automatically assumes all data to be strings.
1. True
2. False


Question : use of R as a query language for big data: Big R hides many of the complexities pertaining to the underlying Hadoop / MapReduce framework.

 : use of R as a query language for big data: Big R hides many of the complexities pertaining to the underlying Hadoop / MapReduce framework.
1. True
2. False


Question : You are working as a BigData Analytics , and you need to integrate IBM SPSS Modeler to use big data as a source for predictive modeling. Which of the following will
help to do this


 : You are working as a BigData Analytics , and you need to integrate IBM SPSS Modeler to use big data as a source for predictive modeling. Which of the following will
1. IBM Infospere

2. Big R

 3. Access Mostly Uused Products by 50000+ Subscribers

4. IBM Big Integration Engine

5. IBM SPSS Analytic Server