Abinitio Fundamental Quiz - Part 1

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Quizzes Created: 1 | Total Attempts: 5,762

Questions: 50 | Attempts: 5,765 | Updated: Mar 22, 2023

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Abinitio Fundamental Quiz - Part 1 - Quiz

This quiz (Part1) tests our basic understanding and knowledge in AbInitio. You may take AbInitio Fundamental Quiz - Part 2 also. Good Luck.

Questions and Answers

1.

What are the different types of parallelism in AbInitio?
- A.
  
  Process parallelism, Data parallelism, Component parallelism
- B.
  
  Phase parallelism, Component parallelism, Pipeline parallelism
- C.
  
  Component parallelism, Data parallelism, Pipeline parallelism
- D.
  
  None of the above
Correct Answer
C. Component parallelism, Data parallelism, Pipeline parallelism

Explanation
AbInitio, a data integration and ETL tool, supports three types of parallelism: component parallelism, data parallelism, and pipeline parallelism. Component parallelism allows multiple components to run in parallel, increasing efficiency. Data parallelism involves dividing data into partitions and processing them simultaneously. Pipeline parallelism enables the execution of multiple stages of a data transformation pipeline in parallel. Therefore, the correct answer is Component parallelism, Data parallelism, Pipeline parallelism.

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2.

Replicate component supports which type of Parallelism?
- A.
  
  Data Parallelism
- B.
  
  Component Parallelism
- C.
  
  Pipeline Parellelism
- D.
  
  All of the above
Correct Answer
B. Component Parallelism

Explanation
Component Parallelism is the type of parallelism that is supported by the Replicate component. This means that the Replicate component is capable of executing multiple instances of a component in parallel, allowing for concurrent processing of data. This type of parallelism is particularly useful when there is a need to perform the same operation on multiple data streams simultaneously.

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3.

What is component parallelism?
- A.
  
  A graph with multiple processes running simultaneously on separate data uses component parallelism.
- B.
  
  A graph that deals with data divided into segments and operates on each segment simultaneously uses component parallelism
- C.
  
  A graph with multiple phases running simultaneously on separate data uses component parallelism.
- D.
  
  A graph with multiple components running simultaneously on the same data
Correct Answer
A. A graph with multiple processes running simultaneously on separate data uses component parallelism.

Explanation
Component parallelism refers to the concept of running multiple processes simultaneously on separate data within a graph. This means that each process operates independently on its own set of data, allowing for parallel execution and potentially improving performance. This approach is commonly used in parallel computing to divide a problem into smaller components that can be processed concurrently, thereby leveraging the power of multiple processors or computing resources.

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4.

What is the notation to specify the URL of a layout?
- A.
  
  Hostname/path/
- B.
  
  Protocol://hostname/path
- C.
  
  Path
- D.
  
  None of the above
Correct Answer
B. Protocol://hostname/path

Explanation
The correct answer is "protocol://hostname/path". This notation is used to specify the URL of a layout. The protocol specifies the communication protocol to be used, such as HTTP or HTTPS. The hostname represents the domain name or IP address of the server hosting the layout. The path refers to the specific location or directory of the layout within the server. This notation allows for the precise identification and retrieval of the desired layout on the internet.

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0
1
5.

A configuration file contains the following information:
- A.
  
  The name and version number of the database to which you want to connect
- B.
  
  The name of the computer on which the database instance or server to which you want to connect runs, or on which the database remote access software is installed
- C.
  
  The name of the database instance, server, or provider to which you want to connect
- D.
  
  You generate a configuration file by using the Properties dialog box for one of the Database components
- E.
  
  All of the above
Correct Answer
E. All of the above

Explanation
The correct answer is "All of the above" because the given information states that a configuration file contains the name and version number of the database, the name of the computer on which the database runs, and the name of the database instance, server, or provider. Therefore, all of these options are included in a configuration file.

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6.

For which join type the record-required parameter is used?
- A.
  
  Inner join
- B.
  
  Outer join
- C.
  
  Explicit join
- D.
  
  All of the above
Correct Answer
C. Explicit join

Explanation
The record-required parameter is used for the explicit join. In an explicit join, the record-required parameter specifies whether all records from both tables are required or not. This parameter helps determine the type of join to be performed, ensuring that the resulting dataset includes only the desired records.

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7.

Which of the following components need a sorted input?
- A.
  
  Merge
- B.
  
  Interleave
- C.
  
  Gather
- D.
  
  All of the above
Correct Answer
A. Merge

Explanation
Merge is the only component that requires a sorted input. Merge is a process of combining two or more sorted sequences into a single sorted sequence. In order to perform the merge operation efficiently, the input sequences need to be sorted. Interleave and Gather do not require a sorted input as they involve combining or collecting elements from different sources without any specific order.

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8.

How is reject-threshold calculated using limit and ramp?
- A.
  
  Ramp * limit + number of records processed so far
- B.
  
  Ramp + (limit * number of records processed so far)
- C.
  
  Limit + (ramp * number of records processed so far)
- D.
  
  Limit/ramp + number of records processed so far
Correct Answer
C. Limit + (ramp * number of records processed so far)

Explanation
The correct answer is "limit + (ramp * number of records processed so far)". The reject-threshold is calculated by multiplying the ramp value with the number of records processed so far and then adding the limit value. This calculation determines the maximum number of records that can be rejected before the system takes action.

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9.

What is the maximum number of input ports a join components can have?
- A.
  
  Only one
- B.
  
  2
- C.
  
  4
- D.
  
  20
Correct Answer
D. 20

Explanation
A join component is used to combine data from multiple input sources based on a common key. The maximum number of input ports a join component can have is 20. This means that it can join data from up to 20 different input sources.

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10.

What does the max-core parameter refer to?
- A.
  
  The maximum memory the component can use
- B.
  
  The maximum CPU utilization the component can use
- C.
  
  The maximum time limit the component can use
- D.
  
  The maximum number of rejects the component can alllow
Correct Answer
A. The maximum memory the component can use

Explanation
The max-core parameter refers to the maximum memory that the component can use. This parameter determines the upper limit of memory allocation for the component, ensuring that it does not exceed this limit during its operation. By setting this parameter, the system can manage the memory usage of the component and prevent it from consuming excessive resources, which could lead to performance issues or system instability.

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11.

Select the correct/true statement from below:
- A.
  
  The transform() parameter of a component cannot be used to specify the select criteria for the records
- B.
  
  Trash component can be used to capture and view the Log Information
- C.
  
  Start scripts manage tasks such as renaming output files
- D.
  
  Gather component is used to append records from multiple flows arbitrarily
Correct Answer
D. Gather component is used to append records from multiple flows arbitrarily

Explanation
The Gather component is used to append records from multiple flows arbitrarily. This means that it allows you to combine data from different sources or flows into a single output. This can be useful when you need to consolidate data from various inputs or when you want to merge data from different stages of a process. The Gather component provides flexibility in selecting and combining records, giving you the ability to create a unified dataset from multiple sources.

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2
12.

What does layout of a component mean?
- A.
  
  The place where the component works
- B.
  
  The depth of parallelism
- C.
  
  Number of partitions
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
The layout of a component refers to all of the options mentioned in the answer choices. It includes the place where the component works, the depth of parallelism, and the number of partitions. In other words, the layout of a component encompasses its working environment, the level of parallel processing it can handle, and the division of data into partitions. Therefore, all of the above options are correct explanations for the meaning of the layout of a component.

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13.

Which component produces intermediate summary records while aggregating?
- A.
  
  Roll up
- B.
  
  Scan
- C.
  
  Aggregate
- D.
  
  All of the above
Correct Answer
B. Scan

Explanation
The scan component is responsible for scanning the input data and producing intermediate summary records while aggregating. Roll up and aggregate are operations that are performed on the data after the scan component has produced the intermediate summary records. Therefore, the correct answer is Scan.

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14.

Which component saves the status information among the following components?
- A.
  
  Phases
- B.
  
  Check points
- C.
  
  Phase breaks
- D.
  
  Commit
Correct Answer
B. Check points

Explanation
Check points are components that save the status information. They are used to record the progress of a process or task at specific points, allowing for easy recovery or rollback in case of failures or errors. By saving the status information, check points ensure that the process can be resumed from a known and consistent state, minimizing data loss and ensuring the integrity of the system.

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15.

Which component gives sorted output?
- A.
  
  Merge
- B.
  
  Sort
- C.
  
  Rollup
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
All of the above components give sorted output. Merge is a component that combines multiple sorted inputs into a single sorted output. Sort is a component that arranges the input data in a specific order, which is often sorted. Rollup is a component that performs aggregation on the input data, and the output is usually sorted based on the specified grouping and sorting criteria. Therefore, all three components can produce sorted output.

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16.

Which of the following has got a deselect port?
- A.
  
  Filter
- B.
  
  Join
- C.
  
  Sort
- D.
  
  Reformat
Correct Answer
A. Filter

Explanation
The correct answer is Filter. A deselect port is used to remove certain data from a dataset or filter out unwanted records. In the context of data processing or transformation, a deselect port allows users to specify criteria or conditions that determine which records should be excluded or not included in the output. The Filter transformation is commonly used in data integration or ETL (Extract, Transform, Load) processes to selectively filter data based on specific criteria, such as removing duplicates, excluding certain values, or applying complex filtering logic.

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17.

Which component among the following is the most efficient?
- A.
  
  Concatenate
- B.
  
  Interleave
- C.
  
  Gather
- D.
  
  Merge
Correct Answer
C. Gather

Explanation
Gather is the most efficient component among the given options. Gather is a component used for collecting or bringing together data from multiple sources into a single location. It is efficient because it allows for the consolidation of data without any additional processing or manipulation. Concatenate, Interleave, and Merge, on the other hand, involve combining or merging data in various ways, which may require additional processing steps and can potentially be more time-consuming or resource-intensive.

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18.

What does a redefine component do?
- A.
  
  It changes the value of the data records according to expression
- B.
  
  It renames the fields in record format and changes its value according to expression
- C.
  
  It renames the fields in the record format without changing its value
- D.
  
  It copies the data records from its input to output record format and changes its values accourding to key expression.
Correct Answer
C. It renames the fields in the record format without changing its value

Explanation
A redefine component in data processing renames the fields in the record format without changing their values. This means that the component only modifies the field names, while keeping the data values intact. This can be useful when there is a need to change the field names for better understanding or compatibility purposes, without altering the actual data stored in those fields.

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19.

Why a gather component is used?
- A.
  
  To reduce data parallelism
- B.
  
  To reduce component parallelism
- C.
  
  To reduce both data parallelism and component parallelism
- D.
  
  None of the above
Correct Answer
C. To reduce both data parallelism and component parallelism

Explanation
A gather component is used to reduce both data parallelism and component parallelism. Data parallelism refers to dividing the data into smaller chunks and processing them simultaneously, while component parallelism refers to dividing the computation into multiple components and executing them concurrently. By using a gather component, the data and computation can be consolidated, reducing both types of parallelism. This can be beneficial in certain scenarios where the parallelism needs to be reduced for better efficiency or resource management.

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20.

What is the maximum value allowed for max-core?
- A.
  
  2³¹-1
- B.
  
  2²¹-1
- C.
  
  2¹¹-1
- D.
  
  No limit
Correct Answer
A. 2³¹-1

Explanation
The maximum value allowed for max-core is 2³¹-1. This is because 2³¹-1 is the maximum value that can be represented using a 32-bit signed integer. A signed integer uses one bit to represent the sign (positive or negative) and the remaining bits to represent the magnitude. In this case, the sign bit is not used, so all 31 bits are available to represent the maximum value.

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21.

Using which component we can specify the rate of data movement from input to output?
- A.
  
  Throttle
- B.
  
  Fuse
- C.
  
  Scan
- D.
  
  Sample
Correct Answer
A. Throttle

Explanation
Throttle is the correct answer because it is a component that can be used to specify the rate of data movement from input to output. Throttling allows for controlling the flow of data by setting a maximum limit on the rate at which data is transferred. This is particularly useful in scenarios where the input data rate is higher than what the output system can handle, preventing overload and ensuring smooth data transfer.

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22.

Which of the following component will you use to parse programatically?
- A.
  
  Run program
- B.
  
  Readraw
- C.
  
  Reformat
- D.
  
  Run sql
Correct Answer
B. Readraw

Explanation
The correct answer is "readraw". To parse programmatically means to analyze a program or a piece of code in order to understand its structure and meaning. The "readraw" component is most likely designed to read and interpret raw data, which would be an important step in the parsing process. The other options, such as "run program", "reformat", and "run sql", do not directly relate to parsing programmatically.

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23.

Which parameter specifies the components tolerence for reject events?
- A.
  
  Reject port
- B.
  
  Reject-threshold parameter
- C.
  
  Max-core parameter
- D.
  
  Log-reject parameter
Correct Answer
B. Reject-threshold parameter

Explanation
The reject-threshold parameter is the parameter that specifies the component's tolerance for reject events. This parameter sets the threshold at which the system will reject or discard events that do not meet the specified criteria. By adjusting this parameter, the system can determine the level of tolerance for rejecting events, allowing for customization and optimization of the system's performance.

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24.

How can an explicit join perform inner join?
- A.
  
  Record required parameter for both ports are set to false
- B.
  
  Record required parameter for both ports are set to true
- C.
  
  Record required parameter for port0 is set to true and other port is set to false
- D.
  
  Record required parameter for port0 is set to false and other port is set to true
Correct Answer
B. Record required parameter for both ports are set to true

Explanation
When the record required parameter for both ports is set to true, it means that both ports must have matching records in order for the join to be performed. This is the definition of an inner join, where only the matching records from both tables are included in the result set. Therefore, when the record required parameter for both ports is set to true, an explicit join will perform an inner join.

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25.

Which one of the following is a miscellaneous component?
- A.
  
  Broadcast
- B.
  
  Merge
- C.
  
  Trash
- D.
  
  Denormalize
Correct Answer
C. Trash

Explanation
Trash is considered a miscellaneous component because it is used to discard unwanted or unnecessary data in a data processing system. It acts as a temporary storage location for data that is no longer needed or relevant. The data sent to the trash component is typically deleted or ignored, making it a miscellaneous component in the system.

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26.

In which way conflicts arise during check in?
- A.
  
  The graph in sandbox not latest
- B.
  
  The graph check in happens in different project
- C.
  
  Both the above
- D.
  
  Conflicts doesn’t arise
Correct Answer
C. Both the above

Explanation
Conflicts can arise during check-in in two ways. Firstly, if the graph in the sandbox is not the latest version, it can cause conflicts when trying to check it in. Secondly, conflicts can also occur if the graph check-in happens in a different project. Therefore, both of these scenarios can lead to conflicts during the check-in process.

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27.

Which of the following is incorrect?
- A.
  
  Gzip reduces the volume of data in flow
- B.
  
  Compress reduces the volume of data in flow in UNIX platform
- C.
  
  Gunzip reduces the volume of data in flow
- D.
  
  Gunzip reveses the effect of compress.
Correct Answer
C. Gunzip reduces the volume of data in flow

Explanation
Gunzip does not reduce the volume of data in flow. It is used to decompress files that have been compressed using gzip or compress. Therefore, the statement "Gunzip reduces the volume of data in flow" is incorrect.

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28.

What a find splitter component does?
- A.
  
  Splits the data in to ranges
- B.
  
  Splits a flow in to different flows
- C.
  
  Both the above
- D.
  
  None of the above
Correct Answer
A. Splits the data in to ranges

Explanation
A find splitter component is used to split the data into ranges. This means that it takes a set of data and divides it into different groups or segments based on specified criteria. It does not split a flow into different flows, nor does it perform any other function mentioned in the options.

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29.

When complex joining expressions are required which component among these is preferred?
- A.
  
  Look up
- B.
  
  Join
- C.
  
  Merge
- D.
  
  Gather
Correct Answer
A. Look up

Explanation
When complex joining expressions are required, the preferred component is "Look up." This is because a look up operation allows for efficient retrieval of data based on a key or index. It is commonly used when joining tables or datasets based on a common attribute. By using a look up, the process of joining complex expressions becomes easier and faster.

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30.

Component that is used to reduce the volume of data flow due to narrow band width or lack of enough disk space to store data?
- A.
  
  Compress
- B.
  
  Compress,Gzip
- C.
  
  Compress,Gzip,Gunzip
- D.
  
  None of the above
Correct Answer
B. Compress,Gzip

Explanation
Compressing data is a technique used to reduce the volume of data flow when there is limited bandwidth or insufficient disk space. Gzip is a popular compression utility that is commonly used to compress and decompress files. By using Gzip in conjunction with the Compress component, data can be compressed and stored in a more efficient manner, thus addressing the issue of limited bandwidth or lack of disk space. Therefore, the correct answer is Compress, Gzip.

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31.

Explain maxcore parameter?
- A.
  
  Amount of main memory allocated to a component
- B.
  
  Amount of main memory allocated to an instruction
- C.
  
  Amount of main memory allocated to store a data permanently
- D.
  
  Amount of main memory allocated to store and manipulate data permanently
Correct Answer
C. Amount of main memory allocated to store a data permanently

Explanation
The maxcore parameter refers to the amount of main memory allocated to store data permanently. This means that the parameter determines the maximum amount of memory that can be used to store and retain data even when the system is powered off or restarted. It is a measure of the total memory capacity dedicated to storing data in a permanent manner.

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2
32.

The component stops the execution of the graph if the number of reject events exceeds the result of the formula:
- A.
  
  Limit + (ramp * number_of_records_processed_so_far)
- B.
  
  Limit * (ramp + number_of_records_processed_so_far)
- C.
  
  Limit + ramp
- D.
  
  Limit * ramp
Correct Answer
A. Limit + (ramp * number_of_records_processed_so_far)

Explanation
The correct answer is "limit + (ramp * number_of_records_processed_so_far)". This formula calculates the maximum number of reject events that can occur before the component stops the execution of the graph. The "limit" represents a fixed threshold for the number of reject events, while the "ramp" represents the rate at which the threshold increases with each record processed. By multiplying the "ramp" with the "number_of_records_processed_so_far" and adding it to the "limit", the formula dynamically adjusts the threshold based on the progress of record processing.

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33.

What is the use of merge component?
- A.
  
  Joins different flows
- B.
  
  Sorts data
- C.
  
  Join different flows by sorting it
- D.
  
  None of the above
Correct Answer
C. Join different flows by sorting it

Explanation
The merge component is used to join different flows by sorting them. This means that it takes multiple input flows and combines them into a single output flow, ensuring that the data is sorted in a specific order. This can be useful in various scenarios where data from different sources needs to be combined and ordered, such as in data integration or data processing tasks. The merge component helps to streamline the process and ensure that the resulting flow is organized and coherent.

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34.

What all components require sorted input?
- A.
  
  Rollup
- B.
  
  Join
- C.
  
  Dedup sorted
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
All of the mentioned components (Rollup, Join, Dedup sorted) require sorted input. Sorting the input is necessary in order to perform operations like grouping, merging, and eliminating duplicates efficiently. Sorting the input data allows these components to process the data in a predictable order, which is essential for their proper functioning. Therefore, all of the mentioned components require sorted input.

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35.

What component will you use to undo the effect of Partition by Round Robin?
- A.
  
  Partition by expression
- B.
  
  Partition by key and sort
- C.
  
  Interleave
- D.
  
  Partition by range
Correct Answer
C. Interleave

Explanation
Interleave is the component that can be used to undo the effect of Partition by Round Robin. Interleave is a mechanism that combines multiple streams of data into a single stream, allowing for the reverse of the partitioning process. It evenly distributes the data across multiple partitions, effectively undoing the round-robin partitioning and restoring the original distribution of the data.

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36.

What does a throttle component do?
- A.
  
  Copies records from its input to its output at a rate that you can specify
- B.
  
  Ends a flow by accepting all the data records in it and discards them
- C.
  
  Generates a series of cumulative summary records
- D.
  
  None of the above
Correct Answer
A. Copies records from its input to its output at a rate that you can specify

Explanation
A throttle component copies records from its input to its output at a rate that you can specify. This means that it controls the flow of data by limiting the rate at which records are passed through. This can be useful in scenarios where you want to control the processing speed or prevent overwhelming downstream systems with a high volume of data.

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37.

For which component connecting the ports is not mandatory?
- A.
  
  Run SQL
- B.
  
  Intermediate file
- C.
  
  Output file
- D.
  
  Broadcast
Correct Answer
A. Run SQL

Explanation
The correct answer is "Run SQL." In a system that uses SQL for data processing, running SQL queries does not necessarily require connecting ports. SQL queries can be executed locally without the need for communication between different components or systems.

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38.

Which component is more powerful and easier to use than the aggregate component?
- A.
  
  Rollup
- B.
  
  Join
- C.
  
  Sort within groups
- D.
  
  None of the above
Correct Answer
A. Rollup

Explanation
The rollup component is more powerful and easier to use than the aggregate component. Rollup allows for the creation of subtotals and grand totals in a query result, providing a more comprehensive analysis of the data. It simplifies the process of grouping and summarizing data, making it easier to obtain meaningful insights. In contrast, the aggregate component only allows for basic calculations on a single group of data. Therefore, rollup is a more advanced and efficient option for data analysis.

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39.

Which is the generally used De Partitioning component?
- A.
  
  Concatenate
- B.
  
  Gather
- C.
  
  Merge
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
The correct answer is "All of the above". This means that all three components - Concatenate, Gather, and Merge - are generally used for de-partitioning. De-partitioning refers to the process of combining multiple partitions or datasets into a single dataset. Concatenate is used to concatenate or merge datasets vertically, Gather is used to gather data from multiple partitions into a single partition, and Merge is used to merge datasets horizontally. Therefore, all three components are commonly used for de-partitioning.

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40.

Denormalize sorted
- A.
  
  Requires grouped input
- B.
  
  Consolidates groups of related data records into a single output record
- C.
  
  Generates a vector field for each group and optionally computes the summary field in the output record
- D.
  
  All of the above
Correct Answer
D. All of the above

Explanation
The explanation for the correct answer, "All of the above," is that denormalizing sorted data requires grouped input, consolidates groups of related data records into a single output record, and can generate a vector field for each group and optionally compute the summary field in the output record. In other words, all of the mentioned statements are true for denormalizing sorted data.

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41.

What is max core parameter?
- A.
  
  Maximum number of core components
- B.
  
  Maximum memory usage interms of bytes
- C.
  
  Maximum number of records that can be passed through
- D.
  
  Both (A) and (B)
- E.
  
  All of the above
Correct Answer
B. Maximum memory usage interms of bytes

Explanation
The max core parameter refers to the maximum memory usage in terms of bytes. This parameter determines the maximum amount of memory that can be allocated for core components. It is used to ensure efficient memory management and prevent memory-related issues such as crashes or slowdowns. By setting a limit on the maximum memory usage, the system can allocate resources effectively and avoid excessive memory consumption.

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42.

What is true about a multifile?
- A.
  
  It is a file which is divided into so many partitions and stored in the same disk
- B.
  
  A multifile contains one multifile and only 2 data partitions
- C.
  
  A multifile contains one multifile and one or many data partitions
- D.
  
  Roundrobin partitioning is not used to partition data in multifle
Correct Answer
C. A multifile contains one multifile and one or many data partitions

Explanation
A multifile is a file that contains both a multifile and one or many data partitions. This means that within the multifile, there is another multifile along with multiple data partitions. This allows for the organization and storage of different types of data within a single file.

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43.

Component used to create surrogate keys?
- A.
  
  Assign Key Component
- B.
  
  Fuse
- C.
  
  Run Program
- D.
  
  Sample
Correct Answer
A. Assign Key Component

Explanation
The Assign Key Component is used to create surrogate keys. Surrogate keys are artificial primary keys that are used in data warehousing and database management systems to uniquely identify records. The Assign Key Component generates and assigns these surrogate keys to the records based on a predefined logic or algorithm. This component is commonly used in ETL (Extract, Transform, Load) processes to ensure the uniqueness and consistency of data in the target system.

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44.

What does a watcher do?
- A.
  
  Eliminating To Do Cues
- B.
  
  Turn on the debugging mode
- C.
  
  Displays flow patterns
- D.
  
  Edit Key specifiers
- E.
  
  All of the above
Correct Answer
B. Turn on the debugging mode

Explanation
A watcher is a feature or tool that allows developers to monitor the execution of their code and track variables or specific sections of code during runtime. Turning on the debugging mode enables the watcher functionality, allowing developers to see the flow patterns and values of variables in real-time. It helps in identifying and fixing bugs or issues in the code by providing valuable insights into the program's execution.

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45.

What do you call the file which can treat several serial files having the same record format as a single graph component?
- A.
  
  Summary File
- B.
  
  Event Log File
- C.
  
  Adhoc Multifile
- D.
  
  Custom File
Correct Answer
C. Adhoc Multifile

Explanation
An adhoc multifile is a file that can treat several serial files with the same record format as a single graph component. It allows for the consolidation and organization of multiple files into one cohesive unit, making it easier to manage and analyze the data within. This term accurately describes the functionality of the file in question, making it the correct answer.

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46.

The component sorts records according to a key specifier, and then finds the ranges of key values that divide the total number of input records into number of partitions?
- A.
  
  Checkpointed sort
- B.
  
  Find splitters
- C.
  
  Sample
- D.
  
  None of these
Correct Answer
B. Find splitters

Explanation
The correct answer is "Find splitters." This component is responsible for sorting records based on a key specifier and then identifying the ranges of key values that divide the total number of input records into the desired number of partitions. This process helps in evenly distributing the data across different partitions for efficient processing.

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47.

Function of Throttle component?
- A.
  
  Reads the records from its inputs and compares the records one by one
- B.
  
  Combines all the records from input in the append fashion
- C.
  
  It can copy record from input to output at the rate specified
- D.
  
  None of these
Correct Answer
C. It can copy record from input to output at the rate specified

Explanation
The Throttle component is used to control the rate at which records are copied from the input to the output. It allows the user to specify the desired rate at which the records should be copied. This can be useful in scenarios where the input records are being processed by downstream components at a slower rate and the Throttle component helps to regulate the flow of records to match the downstream processing capacity.

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48.

What does a Broadcast component do?
- A.
  
  It arbitrarily combines all the data records it receives into a single flow and writes a copy of that flow to each of its output flow partitions.
- B.
  
  It appends multiple flow partitions of data records one after the other.
- C.
  
  It echoes the final status of the graph run
- D.
  
  None of these
Correct Answer
A. It arbitrarily combines all the data records it receives into a single flow and writes a copy of that flow to each of its output flow partitions.

Explanation
A Broadcast component combines all the data records it receives into a single flow and then duplicates that flow to each of its output flow partitions. This means that the component takes in multiple data records and merges them into one flow, and then distributes copies of that flow to each output partition. This allows for the data to be processed in parallel across multiple partitions.

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49.

What is a summary file?
- A.
  
  A file containing information about flows,components ,phases during the most recent run
- B.
  
  A file containing the summary of the graph run
- C.
  
  Both (A) and (B)
- D.
  
  None of these
Correct Answer
A. A file containing information about flows,components ,phases during the most recent run

Explanation
A summary file is a file that contains information about flows, components, and phases during the most recent run. This file provides a concise overview of the data and activities that occurred during the run, allowing users to quickly access and review important information without having to go through the entire dataset or log files. This summary file is useful for tracking and analyzing the progress and results of a run, making it an essential tool for data analysis and troubleshooting.

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50.

What is the control partition?
- A.
  
  It is partion where the same data is run simultaneously in different components
- B.
  
  Location of multifile's datapartition
- C.
  
  A partition which divides the control informations
- D.
  
  None of these
Correct Answer
B. Location of multifile's datapartition

Explanation
The correct answer is "Location of multifile's datapartition." The control partition refers to the specific location where the data partition of a multifile is stored. This partition divides the control information for the multifile, allowing for efficient access and management of the data within the file.

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Current Version
Mar 22, 2023

Quiz Edited by
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Aug 05, 2009

Quiz Created by
Sinoy_kx

Abinitio Fundamental Quiz - Part 1

What are the different types of parallelism in AbInitio?

Replicate component supports which type of Parallelism?

What is component parallelism?

What is the notation to specify the URL of a layout?

A configuration file contains the following information:

For which join type the record-required parameter is used?

Which of the following components need a sorted input?

How is reject-threshold calculated using limit and ramp?

What is the maximum number of input ports a join components can have?

What does the max-core parameter refer to?

Select the correct/true statement from below:

What does layout of a component mean?

Which component produces intermediate summary records while aggregating?

Which component saves the status information among the following components?

Which component gives sorted output?

Which of the following has got a deselect port?

Which component among the following is the most efficient?

What does a redefine component do?

Why a gather component is used?

What is the maximum value allowed for max-core?

Using which component we can specify the rate of data movement from input to output?

Which of the following component will you use to parse programatically?

Which parameter specifies the components tolerence for reject events?

How can an explicit join perform inner join?

Which one of the following is a miscellaneous component?

In which way conflicts arise during check in?

Which of the following is incorrect?

What a find splitter component does?

When complex joining expressions are required which component among these is preferred?

Component that is used to reduce the volume of data flow due to narrow band width or lack of enough disk space to store data?

Explain maxcore parameter?

The component stops the execution of the graph if the number of reject events exceeds the result of the formula:

What is the use of merge component?

What all components require sorted input?

What component will you use to undo the effect of Partition by Round Robin?

What does a throttle component do?

For which component connecting the ports is not mandatory?

Which component is more powerful and easier to use than the aggregate component?

Which is the generally used De Partitioning component?

Denormalize sorted

What is max core parameter?

What is true about a multifile?

Component used to create surrogate keys?

What does a watcher do?

What do you call the file which can treat several serial files having the same record format as a single graph component?

The component sorts records according to a key specifier, and then finds the ranges of key values that divide the total number of input records into number of partitions?

Function of Throttle component?

What does a Broadcast component do?

What is a summary file?

What is the control partition?