Question 1

In the Expression transformation graphic below, what is the value of the PREVIOUS_STATE port for row 2, given that the value for the STATE port was 'CA' for row 1? https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/INFORMATICA_PR000041/page_4_img_1.jpg

Accepted Answer

B

Explanation: In an Informatica Expression transformation, variable ports retain their value from the previously processed row. The Integration Service evaluates ports in a specific order: it uses the previous row's variable port value to calculate the current row's output ports, and then it calculates the current row's variable port value for use in the next row. For row 1, STATE is 'CA'. The variable port vPREVIOUSSTATE is set to 'CA'. For row 2, the output port PREVIOUSSTATE is evaluated first, using the value of vPREVIOUSSTATE from row 1, which is 'CA'.

Question 2

What function could be used to exchange 'i' with 'I' in the COMPANY port given the following expression? function name{1, COMPANY, 'i' , 'I')

Accepted Answer

B

Explanation: The REPLACECHR function is designed to replace a set of characters within a string with another character. The syntax is REPLACECHR(CaseFlag, InputString, OldCharSet, NewChar). The expression in the question, function name(1, COMPANY, 'i', 'I'), directly maps to this syntax. The first argument, 1, sets the function to be case-insensitive. The function will search for every character in the OldCharSet ('i') within the InputString (the COMPANY port) and replace it with the NewChar ('I').

Question 3

Which of the following statements is correct on workflow events?

Accepted Answer

B

Explanation: A user-defined event in Informatica PowerCenter is physically represented as a file. An Event-Raise task creates this file in a specified directory, and an Event-Wait task polls for its existence. Because this mechanism is file-based, it can be used to orchestrate and synchronize tasks not only within a single workflow but also across different, independent workflows, as long as they share access to the file system where the event file is created. This makes it a powerful tool for coordinating complex data processing pipelines.

Question 4

Which port types are applicable to the Stored Procedure transformation?(Choose all that apply) Choose 3 answers

Accepted Answer

A, B, D

Explanation: The Stored Procedure transformation in Informatica PowerCenter is designed to call a database stored procedure or function. It uses specific port types to interact with the procedure. Input ports pass data from the mapping pipeline to the procedure's input parameters. Output ports receive values from the procedure's output parameters back into the pipeline. A Return port is a special output port used to capture the return value when the stored procedure is a function.

Question 5

Which is the correct priority of assigning a mapping variable?

Accepted Answer

A

Explanation: The Informatica Integration Service determines the start value for a mapping variable by following a specific order of precedence. Option A provides the most comprehensive sequence. The process begins with runtime overrides: values from a workflow parameter file are read, then overridden by a session parameter file if specified. A pre-session variable assignment provides a further, higher-priority override. If none of these runtime values are provided, the service uses the value saved in the repository from the previous successful session. If no repository value exists (e.g., on the first run), it uses the initial value declared in the mapping. The ultimate fallback is the default value for the variable's data type (e.g., 0 for a number).

Question 6

Two pipelines (A & B) are entering a Joiner transformation with each having a record size of 100
bytes. Pipeline A has a total of 1000 records and Pipeline B has a total of 1,000,000 records. Which
pipeline should be designated the master pipeline?

Accepted Answer

A

Explanation: To optimize performance, the Joiner transformation caches the entire master pipeline in memory or on disk before processing the detail pipeline. Designating the pipeline with the fewer number of records as the master minimizes the size of this cache. This reduces memory consumption and potential disk I/O, leading to faster processing. Pipeline A has only 1,000 records compared to Pipeline B's 1,000,000 records. Therefore, Pipeline A should be the master source to ensure the most efficient join operation.

Question 7

Referring to the Sequence Generator transformation, which statement is correct and true?

Accepted Answer

A

Explanation: The Sequence Generator transformation is designed to create unique primary key values or a sequence of numbers. It provides two output ports: NEXTVAL and CURRVAL. The NEXTVAL port is used to generate a new, unique value for each row that passes into a connected target. When you connect the NEXTVAL port to a downstream transformation or target, the Integration Service generates the next value in the configured sequence for that row. The CURRVAL port simply outputs the value that was just generated by NEXTVAL.

Question 8

Which statement on workflows is correct?

Accepted Answer

C

Explanation: A parameter file specified at the workflow level provides a centralized mechanism to define values for parameters and variables used by all tasks within that workflow. These values override the initial or default values configured within the individual mappings and sessions. While a parameter file defined at the session level has higher precedence for that specific session, the workflow-level file serves as the default for any session that does not have its own file specified, thus overriding the pre-configured initial values.

Question 9

Subqueries can be used in the SQL override for uncached lookup transformations.

Accepted Answer

FALSE

Explanation: In PowerCenter the SQL override that you specify for an uncached Lookup transformation is executed row-by-row with bind variables that the Integration Service substitutes for the input ports. Because of the way this prepared statement is constructed, Informatica expressly disallows several SQL constructs in an uncached lookup override, including sub-queries. Attempting to place a sub-query in the override causes the session to fail at run time. Therefore the statement that “Subqueries can be used in the SQL override for uncached lookup transformations” is false. Why the Other Option is Wrong: • True – Incorrect. Official Informatica documentation lists sub-queries as one of the unsupported elements for SQL override in an uncached lookup. Hence the override would not run successfully if a sub-query were included.

Question 10

Using the Properties view of a Session task from the Workflow Monitor, the reason for a session's failure can possibly be determined?

Accepted Answer

TRUE

Explanation: The statement is correct. The Workflow Monitor is the primary tool for observing and managing the execution of workflows and their constituent tasks. When a session task fails, an operator can right-click the task and select "View Properties". Within the Properties window, the "Run Properties" tab provides a summary of the execution, including crucial diagnostic information such as the "First Error Code" and "First Error Message". These fields present the initial error that triggered the session failure, often providing a clear and immediate reason for the issue without needing to parse the entire session log file.

Question 11

The word FALSE is a valid Filter transformation condition?

Accepted Answer

TRUE

Explanation: The Filter transformation's primary function is to test each incoming row against a specified condition. This condition must be an expression that evaluates to a boolean value: TRUE or FALSE. The literal FALSE is a valid boolean constant in the Informatica Transformation Language. When FALSE is used as the filter condition, it is a syntactically valid expression that will evaluate to FALSE for every row that passes through the transformation. Consequently, the Integration Service will drop all rows, which is a valid and predictable filtering behavior.

Question 12

A Pipeline Normalizer transformation will reflect one input port for each occurs value which Is greater than 1.

Accepted Answer

TRUE

Explanation: The statement accurately describes the behavior of a Pipeline Normalizer transformation when handling repeating columns. The Normalizer transformation is specifically designed to process denormalized data where a column or group of columns occurs multiple times in a single source row. When you configure a column in the Normalizer tab and set its Occurs property to a value greater than 1 (for example, 4), the PowerCenter Designer automatically generates a distinct input port for each occurrence. Therefore, an Occurs value of 4 will result in four separate input ports for that column. The phrase "one input port for each occurs value" refers to creating a port for each instance of the occurrence (the 1st, 2nd, 3rd, and so on). The condition "which Is greater than 1" correctly identifies that this multi-port generation logic applies only to repeating columns, as a column with an Occurs value of 1 is treated as a standard, non-repeating field.

Question 13

Referring to the Java transformation: select the statement below which is correct and true.

Accepted Answer

A

Explanation: The Informatica Integration Service is the engine that executes session workflows. When a session contains a Java transformation, the Integration Service initiates a Java Virtual Machine (JVM) process. This JVM is responsible for loading and executing the compiled Java byte code provided within the transformation's properties. The JVM runs in the same process space as the DTM (Data Transformation Manager) and processes the data row by row as it passes through the transformation, according to the custom logic defined by the developer.

Question 14

An Unconnected Stored Procedure can run in the following fashions?(Choose all that apply) Choose 3 answers

Accepted Answer

A, B, C

Explanation: An Unconnected Stored Procedure in Informatica is not part of the primary data flow pipeline and is called on demand. It can be invoked from an expression within another transformation (e.g., Expression, Update Strategy) using the :SP syntax. This allows for row-level conditional execution. Additionally, stored procedures can be executed outside the mapping's data flow using session-level commands. A Pre-Session SQL command executes the procedure before the session reads source data, often for setup tasks. A Post-Session SQL command executes it after the session completes its data load, typically for cleanup or logging. These contexts are independent of the mapping's row-by-row processing, fitting the "unconnected" nature of the task.

Question 15

Which command line tool would you use to execute a workflow?

Accepted Answer

C

Explanation: The pmcmd command-line program is the primary tool for interacting with the Informatica PowerCenter Integration Service. Its core function is to manage the execution of workflows and their associated tasks. You can use pmcmd to start, stop, abort, schedule, and monitor workflows from a command prompt or script. The startworkflow command within pmcmd is specifically used to initiate the execution of a named workflow, making it the correct tool for this purpose.

Free Informatica PR000041 Actual Exam Questions