HANA DATA SERVICES 01
HANA Data Services Master Quiz
Test your knowledge and mastery of SAP Data Services with our comprehensive quiz! Whether you are an experienced professional or a newcomer, this quiz offers the perfect opportunity to challenge yourself and enhance your understanding.
Key Features:
- 30 carefully crafted questions
- Topics ranging from dataflow design to error handling
- Multiple choice and checkbox formats
1. You want to load data from an input table to an output table using the SAP Data Services Query transform. How do you define the mapping of column within a Query transform? Note: There are 2 correct answers to this question.
Select an output column and enter the mapping manually.
Drag one column from the output scheme to the input scheme.
Drag one column from the input schema to the output schema
Select one input column and enter the mapping manually.
2. An SAP Data Services job contains many data flows and runs for several hours every night. If a job execution fails, you want to skip all successful data flows and start with the failed dataflow. How do you accomplish this? Note: There are 2 correct answers to this question
Merge the data flows from the job and return it.
Add a Try block before each dataflow and a Catch block after each dataflow.
Run the nightly job with the Enable Recovery flag turned on.
Design the dataflow to ensure a second run does NOT result in duplicate rows.
3. Which features are supported by the SAP Data Services interactive debugger? Note: There are 3 correct answers to this question.
Show sample rows of each step
Set breakpoints
Define additional filters
Show performance-related statistics
Show the optimized execution plan
4. You built a data load dataflow in SAP Data Services. This dataflow is executed every night. The source table contains a CHANGE_DATE column which is populated by the database when the row is saved. What can a timestamp based CDC approach identity in the source based on this CHANGE_DATE column?
Inserted and updated rows but NOT deleted rows
Every single change made to a row
Updated rows but NQI inserted or deleted records
Inserts, updates and deletes for a specified time range.
5. You have a Map Operation transform immediately before the target in a data flow in SAP Data Services, what happens if all operation codes are mapped to Discard in the transform? Update - discard, Insert - discard, delete, normal
They are deleted from the target.
They are added to the overflow file.
They are filtered by the transform.
They are flagged for later deletion.
6. You build a Data Warehouse with a data dimension in SAP Data Services. You decide to use the Date Generation transformation to create this. What options are available to control the output from the transform? Note: There are 2 correct answers to this question.
End Data
Effective Data Column
Julian Format
Increment
7. An SAP Data Services job was executed in the past. Where can you see the order that the dataflows were executed in? Note: There are 2 correct answers to this question
In the job trace log
In the impact and Lineage Analysis report
In the Operational Dashboard
In the job server log
8. Which type of SAP Data Services object can a project, job, dataflow, workflow contain? Note: There are 3 correct answers to this question
A dataflow can contain a workflow
A project can contain a job
A workflow can contain a workflow
A Job can contain a job
A job can contain a workflow.
9. What does the expression SUBSTR ('FIRST NAME',1,3) return
IRS
FIR
M
R
10. You decide to distribute the execution of a job across multiple job servers within a server group. What distribution levels are available? Note: There are 3 correct answers to this question.
Embedded dataflow
Job
Dataflow
Sub-dataflow
Workflow
11. You create a file format in SAP Data services. What properties can you set for a column? Note: There are 3 correct answers to this question.
Format information
Default value
Field size
Comment
Data type
12. Why would you specify Recover as a Unit in the property of a workflow in SAP Data Services?
To ensure that each dataflow is recovered as a separate unit during the recovery execution
To ensure that all dataflows of the workflow are executed in one single transaction during recovery execution
To ensure that the workflow is skipped during recovery if the workflow was executed successfully in the prior run
To ensure that all objects of the workflow are executed during recovery including the steps that were executed successfully in the prior run.
13. In SAP Data Services, which fun
Match_transform
Decode
Match pattern
Literal
14. What errors can you handle in SAP Data Services when you use a file format target? Note: There are 2 correct answers to this question.
Data type conversion error
Row-format error
File type error
Semantic error
15. You want to use one SAP Services to split your source vendor data into three branches, based on the country code Which transform do you use?
Country ID transform
Case transform
Validation transform
Map_Operation transform
16. A dataflow contains a Pivot transform followed by a Query transform that performs an aggregation. The aggregation query should be pushed down to the database in SAP Data Services. Where would you place the Data transfer transform to do this?
After the Query transform
Between the Pivot transform and the Query transform
Before the Pivot transform and after the Query transform
Before the Pivot transform
17. In SAP Data Service, which basic operation can you perform with a Query transform? Note: There are 3 correct answers to this question.
Flag rows for update.
Map columns from an input schema to an output schema.
Set a global variable to a value.
Join data from several sources
18. An SAP Data Services dataflow adds the changed data (insert and update) into a target table every day. How do you design the dataflow to ensure that a partially dataflow recovers automatically the next time it is executed? Note: There are 2 correct answers to this question.
Set the AutoCorrect Load option in the target table loader option.
Add a lockup function in the WHERE? Clause to filter out existing rows.
Use the Table Comparison transform before the table loader.
Enable the Delete Data Before Load target table loader option.
19. You execute an SAP Data Services job with Enable Recovery activated. One of the dataflows the job raises exception hat interrupts the execution. You run the job again with Recover from Last Failed Execution enabled. What happens to the data flow that raised the execution during the first execution?
It is rerun only if the dataflow is part of a recovery unit
It is rerun from the beginning and the partially loaded data is always handled automatically.
It is rerun starting with the first failed row.
It is rerun from the beginning and the design flow must taai with partially loaded data.
20. A new developer joined project team. You already created a new SAP Data Services repository for this member. Where do you manage the security settings for the new repository?
Central Management Console
Repository Manager
Data Services Designer
Repository database
21. You are asked to perform either the initial load or the delta load based on the value of a variable that is set at job execution. How do you design this requirement in SAP Data Services?
Set the job to call the initial and delta dataflows in parallel. Each dataflow should have a filter testing for the variable value.
Use a job containing a Case transform testing for the two possible conditions. Connect one case output to the initial dataflow and the other to the delta dataflow
Use a job containing a script with the ifthenelse 0 function to test the variable value. Connect this script to the initial and delta dataflow.
Use a job containing a Conditional object that tests the value of the variable. In the IF part, call the initial dataflow; in the ELSE part call the delta dataflow.
22. You have to load a file that contains the following first three lines: YEAR; MONTH; PLAN AMOUNT 2014;01;100.00 2014;02;110.004 What settings do you use when you create a file format for this?
Type: Fixed Column lengths; 4,2 and 6 Skip row header: yes
Type: Delimited Column delimiter:<blank> Skip row headers: yes
Type: Delimited Column delimiter: Skip row headers: no
Type: Delimited Column delimiter: Skip row header: yes
23. How do you allow a new team member to view the SAP Data Services repository in read only mode?
Export the repository's metadata to an XML file and open in a browser.
Use the Central Repository in the Designer.
Use the Auto Documentation feature in the Management Console.
Copy the repository and view the copy in the repository manager.
24. What application do you use to display the graphical presentations of all SAP Data Services objects including their relationships and properties?
Operational Dashboard
Data Quality Reports
Impact and Lineage Analysis
Auto Documentation
25. You are joining tables using the query transform of SAP Data Services. What option is supported?
Maximum of two tables
Only inner joins
Only equal conditions
Left outer joins and inner joins
26. What operations can you push down to the database using a Data Transfer transform in SAP Services? Note: There are 3 correct answers to this question.
Custom function
XML function
Join
Distinct
Ordering
27. An SAP Data Services dataflow must load the source table data into a target table, but the column names are different. Where do you assign each source column to the matching target column?
In the Map transform
In the table loader
In a Query transform
In the table reader
28. What is the SAP Data Services Dataflow Auditing features used for? Note: There are 2 correct answers to this question.
To define rules based on the number of records processed overall once the dataflow is finished
To view the data as it is processed by the dataflow in order to ensure its correctness.
To define rules that each record processed by the dataflow has to comply with
To count the number of rows processed at user defined points to collect runtime statistics.
29. A SAP Data Services job contains logic to execute different Dataflows depending on whether the Job was successful or failed. Therefore, the $NEEDS_RECOVERY variable should be set to either 'YES' or 'NO'. How do you assign the value to the $NEEDS_RECOVERY variable?
Use a script with an SQL function to read from a status table.
Use a dataflow to set the value via a template table.
Use a global variable to persist the value across job executions.
Use a catch block and set the variable to 'Yes'.
30. Where can you set up breakpoints for the SAP Data Services interactive debugger?
In a script
In a workflow
In a job
In a dataflow
31. You created and saved a database datastore in SAP Data Services. Which properties can you change in the Edit Datastore dialog box? Note: There are 3 correct answers to this question.
Database server name
Database version
Database name
Datastore name
Username and password
32. You developed a batch job using SAP Data Services and want to start an execution. How can you execute the job? Note: There are 2 correct answers to this question.
Use the debug option in the Data Services Management Console.
Execute the job manually in the Data Services Designer.
Use the scheduler in the Services Designer
Use the scheduler in the Data Services Management Console.
33. A target column named ZIP4 requires the input of two source columns: POSTCODE and EXTENSION. For example, POSTCODE:99999 EXTENSION:9999 Desired result is ZIP4:99999-9999 What mapping do you use to implement this in an SAP Data Services query?
POSTOCODE + '-'+EXTENSION
( POSTCODE || ‘-‘ || EXTENSION)
Rpad_ext(POSTCODE,EXTENSION)
POSTCODE AND '-'AND EXTENSION
34. You modified an existing SAP Data Services job. You notice that the run time is now longer than expected. Where in SAP Data Services can you observe the progress of row counts to determine the location of a bottleneck?
In the Monitor log
In the Impact and Lineage Analysis
In the Trace log
On the View Data tab
35. Why would you use a memory datastore in your SAP Data Services dataflow design?
To enhance processing performance of dataflows used in real-time jobs
To reduce the memory consumption in the target database
To reduce the memory consumption in the source database
To define a connection to SAP HANA
36. You want to execute two dataflows in parallel in SAP Data Services. How can you achieve this?
Create a workflow containing two dataflows without connecting them with a line.
Create a workflow containing two dataflows and connect them with a line.
Create a workflow containing two dataflows and set a degree of parallelism to 2.
Create a workflow containing two dataflows and deselect the Execute Only Once property of the workflow.
37. the SAP Data Services Merge transform is used to combine two datasets; the first has 3000 rows and the second has 2000 rows. What are characteristics of the Merge transform? Note: There are 2 correct answers to this question. (DUPLICATE ROWS ARE ALSO COPIED?)
The Merge transform joins the datasets using a full outer join.
The Merge transform requires both datasets to have the same structure.
The Merge transform combines the datasets into 5000 output rows.
The Merge transform combines the datasets into 5000 or less output rows
38. What tasks can you perform in the SAP Data Services Management Console? Note: There are 3 correct answers to this question.
Display trace and monitor and error logs.
Display the optional Validation Transform statistics.
Schedule a job for daily execution
Debug a dataflow to find data issues.
View the rows and the values being loaded.
39. You executed a job in a development environment, and it raised primary key violation errors in SAP Data Services. Which feature do you enable to identify which primary key caused the errors?
Auto correct load
Delete data before loading
Use Overflow file
Drop and re-create target table.
40. You want to display the description of an object in the designer workspace. Which tasks must you perform to accomplish this in SAP Data Services? Note: There are 3 correct answers to this question.
Right-click on the job in the project hierarchy to enable all descriptions.
Right-click the object, then choose enable Description.
Disable the Hide Non-Executable Elements setting in the difference viewer
Enter a description in the properties of the object.
Click the View Enabled Descriptions button on the toolbar
41. In which situation is it appropriate to use a time-based CDC to capture changes in source date with SAP Data Services?
When there are large tales with few changes
When almost all of the rows have changes
When you need to capture physical deletes from source
When you need to capture intermediate changes
42. What transform can you use to change the operation code from UPDATE to INSERT in SAP Data Services? Note: There are 2 correct answers to this question
Query
Map Operation
Key Generation
History Preserving
43. From the account table you want to know how many accounts you have per account type. The ACCOUNT_TYPE is output along with an additional column COUNTER column in SAP Data Services? Which mapping would you use for the COUNTER column in SAP Data Services?
Sum(ACCOUNT TYPE)
Count(*)
Gen_Row_Num()
Count_Distinct (ACCOUNT_TYPE)
44. In SAP Data Services, what do you use to implement a target-based delta that deals with inserts, updates, and deletes in the sources?
A Map Operation transform
A Map_CDC_Operation transform
A Table Comparison transform
The auto correct load
45. A Map Operation transform in SAP Data Services was used to modify the operation code of data that is being processed. Why do you perform this action? Note: There are 2 correct answers to this question
To push the data down for better performance
To ensure compatibility with subsequent transforms
To increase the speed that the database loads
To control how the data is loaded.
46. You are instructed to calculate the maximum value in the SALARY column of an EMPLOYEE table. How can you achieve this in SAP Data Services?
Call max (SALARY)from a Custom function.
Use max (SALARY) in a conditional
Use max (SALARY)in a script
Enter max (SALARY) in the query transform.
47. An SAP Data Services dataflow has validation errors. What is the cause?
A Conversion is missing
The source data does NOT comply with the rules entered in the Validation transform.
The source data is incorrect, and the dataflow therefore requires a Validation transform.
The dataflow has a syntax error that has to be corrected before executing it.
48. You want to set up a new SAP Data Services landscape. You must also create new repositories. Which repository types can you create? Note: There are 3 correct answers to this question.
Profiler repository
Backup repository
Standby repository
Local repository
Central repository
49. You define audit rules for critical data flow to confirm that your SAP Data Services batch job loaded only correct data. Which audit functions are available to define these rules for columns? Note: There are 3 correct answers to this question.
Checksum
Min
Sum
Count Distinct
Average
50. Which feature in the SAP Data Services Management Console allow you to see the trend of the execution time for any given job?
Monitor Log
Operational Dashboard
Trace Log
Data Quality Reports
51. You are reading a Sales Order table from the source and ed to add the customer region information from a customer table. The customer table has multiple rows per customer. The primary key of the customer table consists of the columns CUST_ID and VALID _FROM. How would you design the dataflow to get the region information that is valid at the ORDER CREATE DATE?
Use a regular lookup function
Use a lookup_exit function. (lookup_ext)
Perform an outer join between both tables.
Join the two tables.
52. What can you use a workflow for in SAP Data Services?
To group jobs that you want to monitor
To transform source data into target data
To group data flows that belong together
To allow scheduling for dataflows
53. What does the Data Services repository of SAP Data Services contain? Note: There are 2 correct answers to this question.
Target metadata
User security
Transformation rules
In-flight data
54. What are advantages of using the Validation transform in SAP Data Services? Note: There are 3 correct answers to this question.
You can produce statistics.
You can see which rules were violated in one output.
You can have multiple rules on a single column.
You can call a recovery dataflow
You can set different failed paths for each rule.
55. What are SAP Data Services scripts used for? Note: There are 2 correct answers to this question
To execute single SQL commands using the sql() function to select a value from a status table for the variable.
To perform job initialization tasks to print the job variable values into the trace log using the print function.
To set the desired job properties, for example, trace options, monitor sample rate, and the Use Statistics for Optimization flag.
To write complex transformation logic using the flexibility of the scripting language.
56. Which transforms are typically used to implement a slowly changing dimension of type 2 in SAP Data Services? Note: There are 3 correct answers to this question
Map CDC Operation
Table_Comparision
Key_Generation
History_Preserving
Data Transfer
57. Which of the following administrative can you perform using the SAP Data Services Management Console? Note: There are 2 correct answers to this question.
Edit the system configuration
Configure an adapter
Schedule a batch job.
Edit the initialization script of job
58. How do you view the data between transforms in an SAP Services dataflow?
By setting the SQL Transform On Job execution trace option
By using the interactive debugger
By setting Audit Data On job execution trace option
By adding audit points in the dataflow
59. An SAP Data Services file format has a date column, but occasionally the file contains an invalid value in one row. This causes the dataflow to terminate with an error. What can you do to complete-load such erroneous files? Note: There are 2 correct answers to this question.
Place the dataflow between a Try/Catch block to catch all erroneous rows.
Specify a date format of '????-??-??' to indicate the value might NOT be valid date in the file format editor.
Use the error handling options for conversion errors in the file format definition.
Define the column as varchar and use functions in subsequent Query transforms to perform the checks and conversions
60. How would you use the View Optimized SQL features to optimize the performance of the dataflow?
View and modify the SQL and adjust the dataflow to maximize push-down operations
View and modify the database execution plan within the Data Services Designer.
View and modify the SQL to improve performance.
View and modify the overall optimization plan Services engine.
61. You need to import metadata and extract data from an SAP ERP system using SAP Data Services. Which type of database store must you use?
Application datastore
Web Services datastore
Adapter datastore
Database datastore
62. Your SAP Data Services job design includes an initiation script that truncates rows in the target prior to loading. The job uses automatic recovery How would you expect the system to behave when you run the job in recovery mode? Note: There are 2 correct answers to this question.
The job reruns all workflows and scripts. When using automatic recovery, only dataflows that ran successfully in the previous execution are skipped.
The job executes the script if it is part of a workflow marked as a recovery unit, but only if an error was raised within that workflow.
The job executes the script if it is part of a workflow marked as a recovery unit irrespective of where the error occurred in the job flow.
The job starts with the flow that caused the error. If this flow is after the initialization script, the initialization script is skipped.
63. In which of the following objects can you use built-in functions in SAP Data Services? Note: There are 3 correct answers to this question.
Query transform
Scripts
Map CDC transform
Merge transform
Conditionals
64. What requirements must you meet when mapping an output column on the SAP Data Services Query transform Mapping tab?
All columns of the input schema must be mapped to the output schema.
Primary keys in the input schema must be mapped to only one column in the output schema.
Every column of the output schema must have a mapping.
Each column in the output schema must be mapped to one or more columns in the output schema.
65. Your source table has a revenue column and a quantity column for each month. You want to transform this to get a table containing twelve rows with two columns. What is the best way to achieve this in SAP Data Services?
Use twelve Query transforms to create the desired output. Then combine these transforms
Use the merge transform hat is connected to the source.
Use the Pivot transform with two pivot sets.
Use the Query transform with multiple IFTHENELSE 0 functions.
66.The performance of a dataflow is slow in SAP Data Services. How can you see which part of the operations is pushed down to the source database? Note: There are 2 correct answers to this question.
By opening the dataflow and using the View Optimized SQL feature
By starting the job in debug mode
By enabling corresponding trace options in the job execution dialog
By opening the Auto Documentation page in the Data Services Management Console
67. What operations can be pushed down in SAP Data Services? Note: There are 2 correct answers to this question.
Aggregation operations used with a Group By statement
Load operations that contain triggers
Join operations between a file and a database table
Join operations between sources that are the same database servers
68. In SAP Data Services, what does a Date Generation transform allow you to generate?
The valid to date based on a dataset that contains valid from information only
The rows for a given date range
The current date for a column to see when each row was loaded
The valid from data based on a dataset the contains valid to information only
69. You want to back up an SAP Data Services repository. How does the system store repositories?
As tables in a relational database management system
As a binary file on the Data Services Job Server
As an XML file on the Data Services Job Server
As an XML file on the Data Services Access Server
70.In SAP Data Services, you have a Validation transform with the following two rules: Rule #1: Action on pass is 'Send to Pass' Rule #2: Action on Failure is 'Send to Fail' Where are the records that fail both rule #1 and rule #2 sent?
Only to the Rule Violation output
To both the Pass and Fail output
Only to the Fail output
Only to the Pass output
71. You are loading a database table using SAP Data Services. Which loading options are valid? Note: There are 3 correct answers to this question.
Rows per commit
Number of loaders
Data transfer method
ABAP execution option
Include in transaction
72. You have a workflow containing two dataflows. The second dataflow should only run if the first one finished successfully. How would you achieve this in SAP Data Services?
Add a script between the data flows using the error_number 0 function.
Embed the first dataflow in a try -catch.
Connect the two data flows with a line.
Use a conditional for the second dataflow.
73. What are standard components of SAP Data Services? Note: There are 3 correct answers to this question.
Design studio
Secure local repository
Access server
Real-time services
Job server
74. An SAP Data Services Validation transform outputs all invalid rows. If more than ten rows are invalid, the dataflow is considered to be failed. How do you implement this?
Raise an exception in a Conditional connected to the target table
Set a breakpoint on the line connected to the target table
Use the raise exception function in the Validation transform
Create an auditing rule that raises an exception
75. The value of the DEPT_ID is null. Decode ((DEPT_ID = 'IT'), 'IS', (DEPT_ID ='CS'),'CA', '?') What is the output of this SAP Data Services fun
Null
IS
CA
?
76. You import a table from a database into a datastore. Which information is added into the SAP Data Services repository?
The whole table with all its source data
The table name and all column names with their datatypes
The complete metadata information of the table
Only the table name
77. In SAP Data Services, why would you select the Produce Default Output checkbox in the Case transform?
To output all rows that do match exactly one case expression
To output all rows that match the case statement
To output all rows that do not match any case expression to the default path.
To output all rows to the default path regardless of they match the case expressions
78. Which repository types are used in SAP Data Services? Note: There are 2 correct answers to this question.
Central Repository
Remote Repository
Data Repository
Profiler Repository
79. How do you design a data load that has good performance and deals with interrupted loads in SAP Data Services?
By creating two dataflows and executing the Auto Correct Load version when required
By setting the target table loader with Bulk Load and Auto Correct Load enabled
By using the table comparison transform
By settings the target table loader with Bulk Load enabled
80. What is the relationship between local variables and parameters in SAP Data Services? Note: There are 2 correct answers to this question.
A local variable in a job sets the value of a parameters in a workflow.
A local variable in a workflow sets the value of a parameter in a dataflow
A parameter in a job sets the value of a local variable in a dataflow
A parameter in a workflow sets the value of a local variable in a dataflow.
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