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CCA175 Dumps CCA175 Braindumps CCA175 Real Questions CCA175 Practice Test

CCA175 Actual Questions


Cloudera


CCA175


CCA Spark and Hadoop Developer


https://killexams.com/pass4sure/exam-detail/CCA175


Question: 94


Now import the data from following directory into departments_export table, /user/cloudera/departments new


Answer: Solution:


Step 1: Login to musql db


mysql –user=retail_dba -password=cloudera show databases; use retail_db; show tables;

step 2: Create a table as given in problem statement.


CREATE table departments_export (departmentjd int(11), department_name varchar(45), created_date T1MESTAMP DEFAULT NOW());


show tables;


Step 3: Export data from /user/cloudera/departmentsnew to new table departments_export sqoop export -connect jdbc:mysql://quickstart:3306/retail_db

-username retaildba


–password cloudera


–table departments_export


-export-dir /user/cloudera/departments_new


-batch


Step 4: Now check the export is correctly done or not. mysql -user*retail_dba -password=cloudera show databases;

use retail _db; show tables;

select’ from departments_export;


Question: 95


Data should be written as text to hdfs

Answer: Solution:


Step 1: Create directory mkdir /tmp/spooldir2


Step 2: Create flume configuration file, with below configuration for source, sink and channel and save it in flume8.conf.


agent1 .sources = source1


agent1.sinks = sink1a sink1b agent1.channels = channel1a channel1b agent1.sources.source1.channels = channel1a channel1b agent1.sources.source1.selector.type = replicating agent1.sources.source1.selector.optional = channel1b agent1.sinks.sink1a.channel = channel1a

agent1 .sinks.sink1b.channel = channel1b agent1.sources.source1.type = spooldir

agent1 .sources.sourcel.spoolDir = /tmp/spooldir2 agent1.sinks.sink1a.type = hdfs

agent1 .sinks, sink1a.hdfs. path = /tmp/flume/primary agent1 .sinks.sink1a.hdfs.tilePrefix = events

agent1 .sinks.sink1a.hdfs.fileSuffix = .log


agent1 .sinks.sink1a.hdfs.fileType = Data Stream agent1 . sinks.sink1b.type = hdfs

agent1 . sinks.sink1b.hdfs.path = /tmp/flume/secondary agent1 .sinks.sink1b.hdfs.filePrefix = events agent1.sinks.sink1b.hdfs.fileSuffix = .log

agent1 .sinks.sink1b.hdfs.fileType = Data Stream agent1.channels.channel1a.type = file agent1.channels.channel1b.type = memory

step 4: Run below command which will use this configuration file and append data in hdfs. Start flume service:

flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/flumeconf/flume8.conf –name age Step 5: Open another terminal and create a file in /tmp/spooldir2/

echo "IBM, 100, 20160104" » /tmp/spooldir2/.bb.txt


echo "IBM, 103, 20160105" » /tmp/spooldir2/.bb.txt mv /tmp/spooldir2/.bb.txt /tmp/spooldir2/bb.txt After few mins

echo "IBM.100.2, 20160104" »/tmp/spooldir2/.dr.txt


echo "IBM, 103.1, 20160105" » /tmp/spooldir2/.dr.txt mv /tmp/spooldir2/.dr.txt /tmp/spooldir2/dr.txt


Question: 96


Data should be written as text to hdfs


Answer: Solution:


Step 1: Create directory mkdir /tmp/spooldir/bb mkdir /tmp/spooldir/dr Step 2: Create flume configuration file, with below configuration for agent1.sources = source1 source2

agent1 .sinks = sink1 agent1.channels = channel1

agent1 .sources.source1.channels = channel1


agentl .sources.source2.channels = channell agent1 .sinks.sinkl.channel = channell agent1 . sources.source1.type = spooldir

agent1 .sources.sourcel.spoolDir = /tmp/spooldir/bb agent1 . sources.source2.type = spooldir

agent1 .sources.source2.spoolDir = /tmp/spooldir/dr agent1 . sinks.sink1.type = hdfs

agent1 .sinks.sink1.hdfs.path = /tmp/flume/finance agent1-sinks.sink1.hdfs.filePrefix = events agent1.sinks.sink1.hdfs.fileSuffix = .log

agent1 .sinks.sink1.hdfs.inUsePrefix = _

agent1 .sinks.sink1.hdfs.fileType = Data Stream agent1.channels.channel1.type = file

Step 4: Run below command which will use this configuration file and append data in hdfs. Start flume service:

flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/fIumeconf/fIume7.conf –name agent1 Step 5: Open another terminal and create a file in /tmp/spooldir/

echo "IBM, 100, 20160104" » /tmp/spooldir/bb/.bb.txt


echo "IBM, 103, 20160105" » /tmp/spooldir/bb/.bb.txt mv /tmp/spooldir/bb/.bb.txt /tmp/spooldir/bb/bb.txt After few mins

echo "IBM, 100.2, 20160104" » /tmp/spooldir/dr/.dr.txt


echo "IBM, 103.1, 20160105" »/tmp/spooldir/dr/.dr.txt mv /tmp/spooldir/dr/.dr.txt /tmp/spooldir/dr/dr.txt


Question: 97


Data should be written as text to hdfs


Answer: Solution:


Step 1: Create directory mkdir /tmp/spooldir2


Step 2: Create flume configuration file, with below configuration for source, sink and channel and save it in flume8.conf.


agent1 .sources = source1


agent1.sinks = sink1a sink1b agent1.channels = channel1a channel1b agent1.sources.source1.channels = channel1a channel1b agent1.sources.source1.selector.type = replicating agent1.sources.source1.selector.optional = channel1b agent1.sinks.sink1a.channel = channel1a

agent1 .sinks.sink1b.channel = channel1b agent1.sources.source1.type = spooldir

agent1 .sources.sourcel.spoolDir = /tmp/spooldir2 agent1.sinks.sink1a.type = hdfs

agent1 .sinks, sink1a.hdfs. path = /tmp/flume/primary agent1 .sinks.sink1a.hdfs.tilePrefix = events

agent1 .sinks.sink1a.hdfs.fileSuffix = .log


agent1 .sinks.sink1a.hdfs.fileType = Data Stream agent1 . sinks.sink1b.type = hdfs

agent1 . sinks.sink1b.hdfs.path = /tmp/flume/secondary agent1 .sinks.sink1b.hdfs.filePrefix = events agent1.sinks.sink1b.hdfs.fileSuffix = .log

agent1 .sinks.sink1b.hdfs.fileType = Data Stream agent1.channels.channel1a.type = file agent1.channels.channel1b.type = memory

step 4: Run below command which will use this configuration file and append data in hdfs. Start flume service:

flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/flumeconf/flume8.conf –name age Step 5: Open another terminal and create a file in /tmp/spooldir2/

echo "IBM, 100, 20160104" » /tmp/spooldir2/.bb.txt


echo "IBM, 103, 20160105" » /tmp/spooldir2/.bb.txt mv /tmp/spooldir2/.bb.txt /tmp/spooldir2/bb.txt After few mins

echo "IBM.100.2, 20160104" »/tmp/spooldir2/.dr.txt


echo "IBM, 103.1, 20160105" » /tmp/spooldir2/.dr.txt mv /tmp/spooldir2/.dr.txt /tmp/spooldir2/dr.txt


Question: 98


Data should be written as text to hdfs


Answer: Solution:


Step 1: Create directory mkdir /tmp/nrtcontent


Step 2: Create flume configuration file, with below configuration for source, sink and channel and save it in flume6.conf.

agent1 .sources = source1 agent1 .sinks = sink1 agent1.channels = channel1

agent1 .sources.source1.channels = channel1 agent1 .sinks.sink1.channel = channel1 agent1 . sources.source1.type = spooldir

agent1 .sources.source1.spoolDir = /tmp/nrtcontent agent1 .sinks.sink1 .type = hdfs

agent1 . sinks.sink1.hdfs .path = /tmp/flume agent1.sinks.sink1.hdfs.filePrefix = events agent1.sinks.sink1.hdfs.fileSuffix = .log agent1 .sinks.sink1.hdfs.inUsePrefix = _

agent1 .sinks.sink1.hdfs.fileType = Data Stream


Step 4: Run below command which will use this configuration file and append data in hdfs. Start flume service:

flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/fIumeconf/fIume6.conf –name agent1 Step 5: Open another terminal and create a file in /tmp/nrtcontent

echo "I am preparing for CCA175 from ABCTech m.com " > /tmp/nrtcontent/.he1.txt mv /tmp/nrtcontent/.he1.txt /tmp/nrtcontent/he1.txt

After few mins


echo "I am preparing for CCA175 from TopTech .com " > /tmp/nrtcontent/.qt1.txt mv /tmp/nrtcontent/.qt1.txt /tmp/nrtcontent/qt1.txt

Question: 99


Problem Scenario 4: You have been given MySQL DB with following details. user=retail_dba

password=cloudera database=retail_db

table=retail_db.categories


jdbc URL = jdbc:mysql://quickstart:3306/retail_db Please accomplish following activities.

Import Single table categories (Subset data} to hive managed table, where category_id between 1 and 22


Answer: Solution:


Step 1: Import Single table (Subset data)


sqoop import –connect jdbc:mysql://quickstart:3306/retail_db -username=retail_dba -password=cloudera - table=categories -where " ’ category_id ’ between 1 and 22" –hive-import –m 1


Note: Here the ‘ is the same you find on ~ key


This command will create a managed table and content will be created in the following directory.


/user/hive/warehouse/categories


Step 2: Check whether table is created or not (In Hive) show tables;

select * from categories;


Question: 100


Data should be written as text to hdfs


Answer: Solution:


Step 1: Create directory mkdir /tmp/spooldir/bb mkdir /tmp/spooldir/dr Step 2: Create flume configuration file, with below configuration for agent1.sources = source1 source2

agent1 .sinks = sink1 agent1.channels = channel1

agent1 .sources.source1.channels = channel1


agentl .sources.source2.channels = channell agent1 .sinks.sinkl.channel = channell agent1 . sources.source1.type = spooldir

agent1 .sources.sourcel.spoolDir = /tmp/spooldir/bb

agent1 . sources.source2.type = spooldir


agent1 .sources.source2.spoolDir = /tmp/spooldir/dr agent1 . sinks.sink1.type = hdfs

agent1 .sinks.sink1.hdfs.path = /tmp/flume/finance agent1-sinks.sink1.hdfs.filePrefix = events agent1.sinks.sink1.hdfs.fileSuffix = .log

agent1 .sinks.sink1.hdfs.inUsePrefix = _


agent1 .sinks.sink1.hdfs.fileType = Data Stream agent1.channels.channel1.type = file

Step 4: Run below command which will use this configuration file and append data in hdfs. Start flume service:

flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/fIumeconf/fIume7.conf –name agent1 Step 5: Open another terminal and create a file in /tmp/spooldir/

echo "IBM, 100, 20160104" » /tmp/spooldir/bb/.bb.txt


echo "IBM, 103, 20160105" » /tmp/spooldir/bb/.bb.txt mv /tmp/spooldir/bb/.bb.txt /tmp/spooldir/bb/bb.txt After few mins

echo "IBM, 100.2, 20160104" » /tmp/spooldir/dr/.dr.txt


echo "IBM, 103.1, 20160105" »/tmp/spooldir/dr/.dr.txt mv /tmp/spooldir/dr/.dr.txt /tmp/spooldir/dr/dr.txt


Question: 101


Problem Scenario 21: You have been given log generating service as below. startjogs (It will generate continuous logs)

tailjogs (You can check, what logs are being generated) stopjogs (It will stop the log service)

Path where logs are generated using above service: /opt/gen_logs/logs/access.log


Now write a flume configuration file named flumel.conf, using that configuration file dumps logs in HDFS file system in a directory called flumel. Flume channel should have following property as well. After every 100 message it should be committed, use non-durable/faster channel and it should be able to hold maximum 1000 events

Answer: Solution:


Step 1: Create flume configuration file, with below configuration for source, sink and channel.


#Define source, sink, channel and agent, agent1. sources = source1

agent1 .sinks = sink1 agent1.channels = channel1

# Describe/configure source1


agent1 . sources.source1.type = exec


agent1.sources.source1.command = tail -F /opt/gen logs/logs/access.log


## Describe sinkl


agentl .sinks.sinkl.channel = memory-channel agentl .sinks.sinkl .type = hdfs

agentl . sinks.sink1.hdfs.path = flumel


agentl .sinks.sinkl.hdfs.fileType = Data Stream


# Now we need to define channell property. agent1.channels.channel1.type = memory agent1.channels.channell.capacity = 1000

agent1.channels.channell.transactionCapacity = 100


# Bind the source and sink to the channel agent1.sources.source1.channels = channel1 agent1.sinks.sink1.channel = channel1

Step 2: Run below command which will use this configuration file and append data in hdfs. Start log service using: startjogs

Start flume service:


flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/flumeconf/flumel.conf- Dflume.root.logger=DEBUG, INFO, console


Wait for few mins and than stop log service.

Stop_logs


Question: 102


Problem Scenario 23: You have been given log generating service as below. Start_logs (It will generate continuous logs)

Tail_logs (You can check, what logs are being generated) Stop_logs (It will stop the log service)

Path where logs are generated using above service: /opt/gen_logs/logs/access.log


Now write a flume configuration file named flume3.conf, using that configuration file dumps logs in HDFS file system in a directory called flumeflume3/%Y/%m/%d/%H/%M


Means every minute new directory should be created). Please us the interceptors to provide timestamp information, if message header does not have header info.


And also note that you have to preserve existing timestamp, if message contains it. Flume channel should have following property as well. After every 100 message it should be committed, use non-durable/faster channel and it should be able to hold maximum 1000 events.


Answer: Solution:


Step 1: Create flume configuration file, with below configuration for source, sink and channel.


#Define source, sink, channel and agent, agent1 .sources = source1

agent1 .sinks = sink1 agent1.channels = channel1

# Describe/configure source1


agent1 . sources.source1.type = exec


agentl.sources.source1.command = tail -F /opt/gen logs/logs/access.log


#Define interceptors


agent1 .sources.source1.interceptors=i1


agent1 .sources.source1.interceptors.i1.type=timestamp agent1 .sources.source1.interceptors.i1.preserveExisting=true

## Describe sink1

agent1 .sinks.sink1.channel = memory-channel agent1 . sinks.sink1.type = hdfs

agent1 . sinks.sink1.hdfs.path = flume3/%Y/%m/%d/%H/%M agent1 .sinks.sjnkl.hdfs.fileType = Data Stream

# Now we need to define channel1 property. agent1.channels.channel1.type = memory agent1.channels.channel1.capacity = 1000

agent1.channels.channel1.transactionCapacity = 100


# Bind the source and sink to the channel Agent1.sources.source1.channels = channel1 agent1.sinks.sink1.channel = channel1

Step 2: Run below command which will use this configuration file and append data in hdfs. Start log service using: start_logs

Start flume service:


flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/flumeconf/flume3.conf - DfIume.root.logger=DEBUG, INFO, console Cname agent1


Wait for few mins and than stop log service. stop logs

Question: 103


Problem Scenario 21: You have been given log generating service as below. startjogs (It will generate continuous logs)

tailjogs (You can check, what logs are being generated) stopjogs (It will stop the log service)

Path where logs are generated using above service: /opt/gen_logs/logs/access.log


Now write a flume configuration file named flumel.conf, using that configuration file dumps logs in HDFS file system in a directory called flumel. Flume channel should have following property as well. After every 100 message it should be committed, use non-durable/faster channel and it should be able to hold maximum 1000 events


Answer: Solution:

Step 1: Create flume configuration file, with below configuration for source, sink and channel.


#Define source, sink, channel and agent, agent1. sources = source1

agent1 .sinks = sink1 agent1.channels = channel1

# Describe/configure source1


agent1 . sources.source1.type = exec


agent1.sources.source1.command = tail -F /opt/gen logs/logs/access.log


## Describe sinkl


agentl .sinks.sinkl.channel = memory-channel agentl .sinks.sinkl .type = hdfs

agentl . sinks.sink1.hdfs.path = flumel


agentl .sinks.sinkl.hdfs.fileType = Data Stream


# Now we need to define channell property. agent1.channels.channel1.type = memory agent1.channels.channell.capacity = 1000

agent1.channels.channell.transactionCapacity = 100


# Bind the source and sink to the channel agent1.sources.source1.channels = channel1 agent1.sinks.sink1.channel = channel1

Step 2: Run below command which will use this configuration file and append data in hdfs. Start log service using: startjogs

Start flume service:


flume-ng agent -conf /home/cloudera/flumeconf -conf-file /home/cloudera/flumeconf/flumel.conf- Dflume.root.logger=DEBUG, INFO, console


Wait for few mins and than stop log service. Stop_logs

Question: 104


Now import data from mysql table departments to this hive table. Please make sure that data should be visible using below hive command, select" from departments_hive


Answer: Solution:


Step 1: Create hive table as said. hive

show tables;


create table departments_hive(department_id int, department_name string);


Step 2: The important here is, when we create a table without delimiter fields. Then default delimiter for hive is ^A (01). Hence, while importing data we have to provide proper delimiter.


sqoop import


-connect jdbc:mysql://quickstart:3306/retail_db


~username=retail_dba


-password=cloudera


–table departments


–hive-home /user/hive/warehouse


-hive-import


-hive-overwrite


–hive-table departments_hive


–fields-terminated-by ‘01’


Step 3: Check-the data in directory.


hdfs dfs -Is /user/hive/warehouse/departments_hive hdfs dfs -cat/user/hive/warehouse/departmentshive/part’ Check data in hive table.

Select * from departments_hive;


Question: 105


Import departments table as a text file in /user/cloudera/departments.

Answer: Solution:


Step 1: List tables using sqoop


sqoop list-tables –connect jdbc:mysql://quickstart:330G/retail_db –username retail dba -password cloudera Step 2: Eval command, just run a count query on one of the table.

sqoop eval


–connect jdbc:mysql://quickstart:3306/retail_db


-username retail_dba


-password cloudera


–query "select count(1) from ordeMtems" Step 3: Import all the tables as avro file. sqoop import-all-tables

-connect jdbc:mysql://quickstart:3306/retail_db


-username=retail_dba


-password=cloudera


-as-avrodatafile


-warehouse-dir=/user/hive/warehouse/retail stage.db


-ml


Step 4: Import departments table as a text file in /user/cloudera/departments sqoop import

-connect jdbc:mysql://quickstart:3306/retail_db


-username=retail_dba


-password=cloudera


-table departments


-as-textfile


-target-dir=/user/cloudera/departments Step 5: Verify the imported data.

hdfs dfs -Is /user/cloudera/departments


hdfs dfs -Is /user/hive/warehouse/retailstage.db


hdfs dfs -Is /user/hive/warehouse/retail_stage.db/products


Question: 106


Problem Scenario 2:

There is a parent organization called "ABC Group Inc", which has two child companies named Tech Inc and MPTech. Both companies employee information is given in two separate text file as below. Please do the following activity for

employee details.


Tech Inc.txt


image


Answer: Solution:


Step 1: Check All Available command hdfs dfs


Step 2: Get help on Individual command hdfs dfs -help get


Step 3: Create a directory in HDFS using named Employee and create a Dummy file in it called e.g. Techinc.txt hdfs dfs -mkdir Employee

Now create an emplty file in Employee directory using Hue.


Step 4: Create a directory on Local file System and then Create two files, with the given data in problems.


Step 5: Now we have an existing directory with content in it, now using HDFS command line, overrid this existing Employee directory. While copying these files from local file System to HDFS. cd /home/cloudera/Desktop/ hdfs dfs - put -f Employee


Step 6: Check All files in directory copied successfully hdfs dfs -Is Employee


Step 7: Now merge all the files in Employee directory, hdfs dfs -getmerge -nl Employee MergedEmployee.txt Step 8: Check the content of the file. cat MergedEmployee.txt

Step 9: Copy merged file in Employeed directory from local file ssytem to HDFS. hdfs dfs -put MergedEmployee.txt Employee/


Step 10: Check file copied or not. hdfs dfs -Is Employee


Step 11: Change the permission of the merged file on HDFS hdfs dfs -chmpd 664 Employee/MergedEmployee.txt Step 12: Get the file from HDFS to local file system, hdfs dfs -get Employee Employee_hdfs

Question: 107


Problem Scenario 30: You have been given three csv files in hdfs as below. EmployeeName.csv with the field (id, name)

EmployeeManager.csv (id, manager Name) EmployeeSalary.csv (id, Salary)

Using Spark and its API you have to generate a joined output as below and save as a text tile (Separated by comma) for final distribution and output must be sorted by id.


ld, name, salary, managerName EmployeeManager.csv

E01, Vishnu E02, Satyam E03, Shiv E04, Sundar E05, John E06, Pallavi E07, Tanvir

E08, Shekhar E09, Vinod E10, Jitendra

EmployeeName.csv E01, Lokesh

E02, Bhupesh E03, Amit E04, Ratan E05, Dinesh E06, Pavan E07, Tejas E08, Sheela E09, Kumar E10, Venkat

EmployeeSalary.csv E01, 50000

E02, 50000


E03, 45000


E04, 45000


E05, 50000


E06, 45000


E07, 50000


E08, 10000


E09, 10000


E10, 10000


Answer: Solution:

Step 1: Create all three files in hdfs in directory called sparkl (We will do using Hue}. However, you can first create in local filesystem and then


Step 2: Load EmployeeManager.csv file from hdfs and create PairRDDs val manager = sc.textFile("spark1/EmployeeManager.csv")

val managerPairRDD = manager.map(x=> (x.split(", ")(0), x.split(", ")(1)))


Step 3: Load EmployeeName.csv file from hdfs and create PairRDDs val name = sc.textFile("spark1/EmployeeName.csv")

val namePairRDD = name.map(x=> (x.split(", ")(0), x.split(‘")(1))) Step 4: Load EmployeeSalary.csv file from hdfs and create PairRDDs val salary = sc.textFile("spark1/EmployeeSalary.csv")

val salaryPairRDD = salary.map(x=> (x.split(", ")(0), x.split(", ")(1)))


Step 4: Join all pairRDDS


val joined = namePairRDD.join(salaryPairRDD}.join(managerPairRDD} Step 5: Now sort the joined results, val joinedData = joined.sortByKey() Step 6: Now generate comma separated data.

val finalData = joinedData.map(v=> (v._1, v._2._1._1, v._2._1._2, v._2._2)) Step 7: Save this output in hdfs as text file. finalData.saveAsTextFile("spark1/result.txt")


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